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backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/__init__.py

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+# -*- coding: utf-8 -*-
+#
+#  SelfTest/Cipher/__init__.py: Self-test for cipher modules
+#
+# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net>
+#
+# ===================================================================
+# The contents of this file are dedicated to the public domain.  To
+# the extent that dedication to the public domain is not available,
+# everyone is granted a worldwide, perpetual, royalty-free,
+# non-exclusive license to exercise all rights associated with the
+# contents of this file for any purpose whatsoever.
+# No rights are reserved.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+# ===================================================================
+
+"""Self-test for cipher modules"""
+
+__revision__ = "$Id$"
+
+def get_tests(config={}):
+    tests = []
+    from Crypto.SelfTest.Cipher import test_AES;      tests += test_AES.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_ARC2;     tests += test_ARC2.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_ARC4;     tests += test_ARC4.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_Blowfish; tests += test_Blowfish.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_CAST;     tests += test_CAST.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_DES3;     tests += test_DES3.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_DES;      tests += test_DES.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_Salsa20; tests += test_Salsa20.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_ChaCha20; tests += test_ChaCha20.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_ChaCha20_Poly1305; tests += test_ChaCha20_Poly1305.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_pkcs1_15; tests += test_pkcs1_15.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_pkcs1_oaep; tests += test_pkcs1_oaep.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_OCB;        tests += test_OCB.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_CBC;        tests += test_CBC.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_CFB;        tests += test_CFB.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_OpenPGP;    tests += test_OpenPGP.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_OFB;        tests += test_OFB.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_CTR;        tests += test_CTR.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_CCM;        tests += test_CCM.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_EAX;        tests += test_EAX.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_GCM;        tests += test_GCM.get_tests(config=config)
+    from Crypto.SelfTest.Cipher import test_SIV;        tests += test_SIV.get_tests(config=config)
+    return tests
+
+if __name__ == '__main__':
+    import unittest
+    suite = lambda: unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')
+
+# vim:set ts=4 sw=4 sts=4 expandtab:

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/common.py

@@ -0,0 +1,510 @@
+# -*- coding: utf-8 -*-
+#
+#  SelfTest/Hash/common.py: Common code for Crypto.SelfTest.Hash
+#
+# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net>
+#
+# ===================================================================
+# The contents of this file are dedicated to the public domain.  To
+# the extent that dedication to the public domain is not available,
+# everyone is granted a worldwide, perpetual, royalty-free,
+# non-exclusive license to exercise all rights associated with the
+# contents of this file for any purpose whatsoever.
+# No rights are reserved.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+# ===================================================================
+
+"""Self-testing for PyCrypto hash modules"""
+
+import unittest
+from binascii import a2b_hex, b2a_hex, hexlify
+
+from Crypto.Util.py3compat import b
+from Crypto.Util.strxor import strxor_c
+
+class _NoDefault: pass        # sentinel object
+def _extract(d, k, default=_NoDefault):
+    """Get an item from a dictionary, and remove it from the dictionary."""
+    try:
+        retval = d[k]
+    except KeyError:
+        if default is _NoDefault:
+            raise
+        return default
+    del d[k]
+    return retval
+
+# Generic cipher test case
+class CipherSelfTest(unittest.TestCase):
+
+    def __init__(self, module, params):
+        unittest.TestCase.__init__(self)
+        self.module = module
+
+        # Extract the parameters
+        params = params.copy()
+        self.description = _extract(params, 'description')
+        self.key = b(_extract(params, 'key'))
+        self.plaintext = b(_extract(params, 'plaintext'))
+        self.ciphertext = b(_extract(params, 'ciphertext'))
+        self.module_name = _extract(params, 'module_name', None)
+        self.assoc_data = _extract(params, 'assoc_data', None)
+        self.mac = _extract(params, 'mac', None)
+        if self.assoc_data:
+            self.mac = b(self.mac)
+
+        mode = _extract(params, 'mode', None)
+        self.mode_name = str(mode)
+
+        if mode is not None:
+            # Block cipher
+            self.mode = getattr(self.module, "MODE_" + mode)
+
+            self.iv = _extract(params, 'iv', None)
+            if self.iv is None:
+                self.iv = _extract(params, 'nonce', None)
+            if self.iv is not None:
+                self.iv = b(self.iv)
+
+        else:
+            # Stream cipher
+            self.mode = None
+            self.iv = _extract(params, 'iv', None)
+            if self.iv is not None:
+                self.iv = b(self.iv)
+
+        self.extra_params = params
+
+    def shortDescription(self):
+        return self.description
+
+    def _new(self):
+        params = self.extra_params.copy()
+        key = a2b_hex(self.key)
+
+        old_style = []
+        if self.mode is not None:
+            old_style = [ self.mode ]
+        if self.iv is not None:
+            old_style += [ a2b_hex(self.iv) ]
+
+        return self.module.new(key, *old_style, **params)
+
+    def isMode(self, name):
+        if not hasattr(self.module, "MODE_"+name):
+            return False
+        return self.mode == getattr(self.module, "MODE_"+name)
+
+    def runTest(self):
+        plaintext = a2b_hex(self.plaintext)
+        ciphertext = a2b_hex(self.ciphertext)
+        assoc_data = []
+        if self.assoc_data:
+            assoc_data = [ a2b_hex(b(x)) for x in self.assoc_data]
+
+        ct = None
+        pt = None
+
+        #
+        # Repeat the same encryption or decryption twice and verify
+        # that the result is always the same
+        #
+        for i in range(2):
+            cipher = self._new()
+            decipher = self._new()
+
+            # Only AEAD modes
+            for comp in assoc_data:
+                cipher.update(comp)
+                decipher.update(comp)
+
+            ctX = b2a_hex(cipher.encrypt(plaintext))
+            ptX = b2a_hex(decipher.decrypt(ciphertext))
+
+            if ct:
+                self.assertEqual(ct, ctX)
+                self.assertEqual(pt, ptX)
+            ct, pt = ctX, ptX
+
+        self.assertEqual(self.ciphertext, ct)  # encrypt
+        self.assertEqual(self.plaintext, pt)   # decrypt
+
+        if self.mac:
+            mac = b2a_hex(cipher.digest())
+            self.assertEqual(self.mac, mac)
+            decipher.verify(a2b_hex(self.mac))
+
+class CipherStreamingSelfTest(CipherSelfTest):
+
+    def shortDescription(self):
+        desc = self.module_name
+        if self.mode is not None:
+            desc += " in %s mode" % (self.mode_name,)
+        return "%s should behave like a stream cipher" % (desc,)
+
+    def runTest(self):
+        plaintext = a2b_hex(self.plaintext)
+        ciphertext = a2b_hex(self.ciphertext)
+
+        # The cipher should work like a stream cipher
+
+        # Test counter mode encryption, 3 bytes at a time
+        ct3 = []
+        cipher = self._new()
+        for i in range(0, len(plaintext), 3):
+            ct3.append(cipher.encrypt(plaintext[i:i+3]))
+        ct3 = b2a_hex(b("").join(ct3))
+        self.assertEqual(self.ciphertext, ct3)  # encryption (3 bytes at a time)
+
+        # Test counter mode decryption, 3 bytes at a time
+        pt3 = []
+        cipher = self._new()
+        for i in range(0, len(ciphertext), 3):
+            pt3.append(cipher.encrypt(ciphertext[i:i+3]))
+        # PY3K: This is meant to be text, do not change to bytes (data)
+        pt3 = b2a_hex(b("").join(pt3))
+        self.assertEqual(self.plaintext, pt3)  # decryption (3 bytes at a time)
+
+
+class RoundtripTest(unittest.TestCase):
+    def __init__(self, module, params):
+        from Crypto import Random
+        unittest.TestCase.__init__(self)
+        self.module = module
+        self.iv = Random.get_random_bytes(module.block_size)
+        self.key = b(params['key'])
+        self.plaintext = 100 * b(params['plaintext'])
+        self.module_name = params.get('module_name', None)
+
+    def shortDescription(self):
+        return """%s .decrypt() output of .encrypt() should not be garbled""" % (self.module_name,)
+
+    def runTest(self):
+
+        ## ECB mode
+        mode = self.module.MODE_ECB
+        encryption_cipher = self.module.new(a2b_hex(self.key), mode)
+        ciphertext = encryption_cipher.encrypt(self.plaintext)
+        decryption_cipher = self.module.new(a2b_hex(self.key), mode)
+        decrypted_plaintext = decryption_cipher.decrypt(ciphertext)
+        self.assertEqual(self.plaintext, decrypted_plaintext)
+
+
+class IVLengthTest(unittest.TestCase):
+    def __init__(self, module, params):
+        unittest.TestCase.__init__(self)
+        self.module = module
+        self.key = b(params['key'])
+
+    def shortDescription(self):
+        return "Check that all modes except MODE_ECB and MODE_CTR require an IV of the proper length"
+
+    def runTest(self):
+        self.assertRaises(TypeError, self.module.new, a2b_hex(self.key),
+                self.module.MODE_ECB, b(""))
+
+    def _dummy_counter(self):
+        return "\0" * self.module.block_size
+
+
+class NoDefaultECBTest(unittest.TestCase):
+    def __init__(self, module, params):
+        unittest.TestCase.__init__(self)
+        self.module = module
+        self.key = b(params['key'])
+
+    def runTest(self):
+        self.assertRaises(TypeError, self.module.new, a2b_hex(self.key))
+
+
+class BlockSizeTest(unittest.TestCase):
+    def __init__(self, module, params):
+        unittest.TestCase.__init__(self)
+        self.module = module
+        self.key = a2b_hex(b(params['key']))
+
+    def runTest(self):
+        cipher = self.module.new(self.key, self.module.MODE_ECB)
+        self.assertEqual(cipher.block_size, self.module.block_size)
+
+
+class ByteArrayTest(unittest.TestCase):
+    """Verify we can use bytearray's for encrypting and decrypting"""
+
+    def __init__(self, module, params):
+        unittest.TestCase.__init__(self)
+        self.module = module
+
+        # Extract the parameters
+        params = params.copy()
+        self.description = _extract(params, 'description')
+        self.key = b(_extract(params, 'key'))
+        self.plaintext = b(_extract(params, 'plaintext'))
+        self.ciphertext = b(_extract(params, 'ciphertext'))
+        self.module_name = _extract(params, 'module_name', None)
+        self.assoc_data = _extract(params, 'assoc_data', None)
+        self.mac = _extract(params, 'mac', None)
+        if self.assoc_data:
+            self.mac = b(self.mac)
+
+        mode = _extract(params, 'mode', None)
+        self.mode_name = str(mode)
+
+        if mode is not None:
+            # Block cipher
+            self.mode = getattr(self.module, "MODE_" + mode)
+
+            self.iv = _extract(params, 'iv', None)
+            if self.iv is None:
+                self.iv = _extract(params, 'nonce', None)
+            if self.iv is not None:
+                self.iv = b(self.iv)
+        else:
+            # Stream cipher
+            self.mode = None
+            self.iv = _extract(params, 'iv', None)
+            if self.iv is not None:
+                self.iv = b(self.iv)
+
+        self.extra_params = params
+
+    def _new(self):
+        params = self.extra_params.copy()
+        key = a2b_hex(self.key)
+
+        old_style = []
+        if self.mode is not None:
+            old_style = [ self.mode ]
+        if self.iv is not None:
+            old_style += [ a2b_hex(self.iv) ]
+
+        return self.module.new(key, *old_style, **params)
+
+    def runTest(self):
+
+        plaintext = a2b_hex(self.plaintext)
+        ciphertext = a2b_hex(self.ciphertext)
+        assoc_data = []
+        if self.assoc_data:
+            assoc_data = [ bytearray(a2b_hex(b(x))) for x in self.assoc_data]
+
+        cipher = self._new()
+        decipher = self._new()
+
+        # Only AEAD modes
+        for comp in assoc_data:
+            cipher.update(comp)
+            decipher.update(comp)
+
+        ct = b2a_hex(cipher.encrypt(bytearray(plaintext)))
+        pt = b2a_hex(decipher.decrypt(bytearray(ciphertext)))
+
+        self.assertEqual(self.ciphertext, ct)  # encrypt
+        self.assertEqual(self.plaintext, pt)   # decrypt
+
+        if self.mac:
+            mac = b2a_hex(cipher.digest())
+            self.assertEqual(self.mac, mac)
+            decipher.verify(bytearray(a2b_hex(self.mac)))
+
+
+class MemoryviewTest(unittest.TestCase):
+    """Verify we can use memoryviews for encrypting and decrypting"""
+
+    def __init__(self, module, params):
+        unittest.TestCase.__init__(self)
+        self.module = module
+
+        # Extract the parameters
+        params = params.copy()
+        self.description = _extract(params, 'description')
+        self.key = b(_extract(params, 'key'))
+        self.plaintext = b(_extract(params, 'plaintext'))
+        self.ciphertext = b(_extract(params, 'ciphertext'))
+        self.module_name = _extract(params, 'module_name', None)
+        self.assoc_data = _extract(params, 'assoc_data', None)
+        self.mac = _extract(params, 'mac', None)
+        if self.assoc_data:
+            self.mac = b(self.mac)
+
+        mode = _extract(params, 'mode', None)
+        self.mode_name = str(mode)
+
+        if mode is not None:
+            # Block cipher
+            self.mode = getattr(self.module, "MODE_" + mode)
+
+            self.iv = _extract(params, 'iv', None)
+            if self.iv is None:
+                self.iv = _extract(params, 'nonce', None)
+            if self.iv is not None:
+                self.iv = b(self.iv)
+        else:
+            # Stream cipher
+            self.mode = None
+            self.iv = _extract(params, 'iv', None)
+            if self.iv is not None:
+                self.iv = b(self.iv)
+
+        self.extra_params = params
+
+    def _new(self):
+        params = self.extra_params.copy()
+        key = a2b_hex(self.key)
+
+        old_style = []
+        if self.mode is not None:
+            old_style = [ self.mode ]
+        if self.iv is not None:
+            old_style += [ a2b_hex(self.iv) ]
+
+        return self.module.new(key, *old_style, **params)
+
+    def runTest(self):
+
+        plaintext = a2b_hex(self.plaintext)
+        ciphertext = a2b_hex(self.ciphertext)
+        assoc_data = []
+        if self.assoc_data:
+            assoc_data = [ memoryview(a2b_hex(b(x))) for x in self.assoc_data]
+
+        cipher = self._new()
+        decipher = self._new()
+
+        # Only AEAD modes
+        for comp in assoc_data:
+            cipher.update(comp)
+            decipher.update(comp)
+
+        ct = b2a_hex(cipher.encrypt(memoryview(plaintext)))
+        pt = b2a_hex(decipher.decrypt(memoryview(ciphertext)))
+
+        self.assertEqual(self.ciphertext, ct)  # encrypt
+        self.assertEqual(self.plaintext, pt)   # decrypt
+
+        if self.mac:
+            mac = b2a_hex(cipher.digest())
+            self.assertEqual(self.mac, mac)
+            decipher.verify(memoryview(a2b_hex(self.mac)))
+
+
+def make_block_tests(module, module_name, test_data, additional_params=dict()):
+    tests = []
+    extra_tests_added = False
+    for i in range(len(test_data)):
+        row = test_data[i]
+
+        # Build the "params" dictionary with
+        # - plaintext
+        # - ciphertext
+        # - key
+        # - mode (default is ECB)
+        # - (optionally) description
+        # - (optionally) any other parameter that this cipher mode requires
+        params = {}
+        if len(row) == 3:
+            (params['plaintext'], params['ciphertext'], params['key']) = row
+        elif len(row) == 4:
+            (params['plaintext'], params['ciphertext'], params['key'], params['description']) = row
+        elif len(row) == 5:
+            (params['plaintext'], params['ciphertext'], params['key'], params['description'], extra_params) = row
+            params.update(extra_params)
+        else:
+            raise AssertionError("Unsupported tuple size %d" % (len(row),))
+
+        if not "mode" in params:
+            params["mode"] = "ECB"
+
+        # Build the display-name for the test
+        p2 = params.copy()
+        p_key = _extract(p2, 'key')
+        p_plaintext = _extract(p2, 'plaintext')
+        p_ciphertext = _extract(p2, 'ciphertext')
+        p_mode = _extract(p2, 'mode')
+        p_description = _extract(p2, 'description', None)
+
+        if p_description is not None:
+            description = p_description
+        elif p_mode == 'ECB' and not p2:
+            description = "p=%s, k=%s" % (p_plaintext, p_key)
+        else:
+            description = "p=%s, k=%s, %r" % (p_plaintext, p_key, p2)
+        name = "%s #%d: %s" % (module_name, i+1, description)
+        params['description'] = name
+        params['module_name'] = module_name
+        params.update(additional_params)
+
+        # Add extra test(s) to the test suite before the current test
+        if not extra_tests_added:
+            tests += [
+                RoundtripTest(module, params),
+                IVLengthTest(module, params),
+                NoDefaultECBTest(module, params),
+                ByteArrayTest(module, params),
+                BlockSizeTest(module, params),
+            ]
+            extra_tests_added = True
+
+        # Add the current test to the test suite
+        tests.append(CipherSelfTest(module, params))
+
+    return tests
+
+def make_stream_tests(module, module_name, test_data):
+    tests = []
+    extra_tests_added = False
+    for i in range(len(test_data)):
+        row = test_data[i]
+
+        # Build the "params" dictionary
+        params = {}
+        if len(row) == 3:
+            (params['plaintext'], params['ciphertext'], params['key']) = row
+        elif len(row) == 4:
+            (params['plaintext'], params['ciphertext'], params['key'], params['description']) = row
+        elif len(row) == 5:
+            (params['plaintext'], params['ciphertext'], params['key'], params['description'], extra_params) = row
+            params.update(extra_params)
+        else:
+            raise AssertionError("Unsupported tuple size %d" % (len(row),))
+
+        # Build the display-name for the test
+        p2 = params.copy()
+        p_key = _extract(p2, 'key')
+        p_plaintext = _extract(p2, 'plaintext')
+        p_ciphertext = _extract(p2, 'ciphertext')
+        p_description = _extract(p2, 'description', None)
+
+        if p_description is not None:
+            description = p_description
+        elif not p2:
+            description = "p=%s, k=%s" % (p_plaintext, p_key)
+        else:
+            description = "p=%s, k=%s, %r" % (p_plaintext, p_key, p2)
+        name = "%s #%d: %s" % (module_name, i+1, description)
+        params['description'] = name
+        params['module_name'] = module_name
+
+        # Add extra test(s) to the test suite before the current test
+        if not extra_tests_added:
+            tests += [
+                ByteArrayTest(module, params),
+            ]
+
+            tests.append(MemoryviewTest(module, params))
+            extra_tests_added = True
+
+        # Add the test to the test suite
+        tests.append(CipherSelfTest(module, params))
+        tests.append(CipherStreamingSelfTest(module, params))
+    return tests
+
+# vim:set ts=4 sw=4 sts=4 expandtab:

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_ARC2.py

@@ -0,0 +1,167 @@
+# -*- coding: utf-8 -*-
+#
+#  SelfTest/Cipher/ARC2.py: Self-test for the Alleged-RC2 cipher
+#
+# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net>
+#
+# ===================================================================
+# The contents of this file are dedicated to the public domain.  To
+# the extent that dedication to the public domain is not available,
+# everyone is granted a worldwide, perpetual, royalty-free,
+# non-exclusive license to exercise all rights associated with the
+# contents of this file for any purpose whatsoever.
+# No rights are reserved.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+# ===================================================================
+
+"""Self-test suite for Crypto.Cipher.ARC2"""
+
+import unittest
+
+from Crypto.Util.py3compat import b, bchr
+
+from Crypto.Cipher import ARC2
+
+# This is a list of (plaintext, ciphertext, key[, description[, extra_params]]) tuples.
+test_data = [
+    # Test vectors from RFC 2268
+
+    # 63-bit effective key length
+    ('0000000000000000', 'ebb773f993278eff', '0000000000000000',
+        'RFC2268-1', dict(effective_keylen=63)),
+
+    # 64-bit effective key length
+    ('ffffffffffffffff', '278b27e42e2f0d49', 'ffffffffffffffff',
+        'RFC2268-2', dict(effective_keylen=64)),
+    ('1000000000000001', '30649edf9be7d2c2', '3000000000000000',
+        'RFC2268-3', dict(effective_keylen=64)),
+    #('0000000000000000', '61a8a244adacccf0', '88',
+    #    'RFC2268-4', dict(effective_keylen=64)),
+    ('0000000000000000', '6ccf4308974c267f', '88bca90e90875a',
+        'RFC2268-5', dict(effective_keylen=64)),
+    ('0000000000000000', '1a807d272bbe5db1', '88bca90e90875a7f0f79c384627bafb2',
+        'RFC2268-6', dict(effective_keylen=64)),
+
+    # 128-bit effective key length
+    ('0000000000000000', '2269552ab0f85ca6', '88bca90e90875a7f0f79c384627bafb2',
+        "RFC2268-7", dict(effective_keylen=128)),
+    ('0000000000000000', '5b78d3a43dfff1f1',
+        '88bca90e90875a7f0f79c384627bafb216f80a6f85920584c42fceb0be255daf1e',
+        "RFC2268-8", dict(effective_keylen=129)),
+
+    # Test vectors from PyCrypto 2.0.1's testdata.py
+    # 1024-bit effective key length
+    ('0000000000000000', '624fb3e887419e48', '5068696c6970476c617373',
+        'PCTv201-0'),
+    ('ffffffffffffffff', '79cadef44c4a5a85', '5068696c6970476c617373',
+        'PCTv201-1'),
+    ('0001020304050607', '90411525b34e4c2c', '5068696c6970476c617373',
+        'PCTv201-2'),
+    ('0011223344556677', '078656aaba61cbfb', '5068696c6970476c617373',
+        'PCTv201-3'),
+    ('0000000000000000', 'd7bcc5dbb4d6e56a', 'ffffffffffffffff',
+        'PCTv201-4'),
+    ('ffffffffffffffff', '7259018ec557b357', 'ffffffffffffffff',
+        'PCTv201-5'),
+    ('0001020304050607', '93d20a497f2ccb62', 'ffffffffffffffff',
+        'PCTv201-6'),
+    ('0011223344556677', 'cb15a7f819c0014d', 'ffffffffffffffff',
+        'PCTv201-7'),
+    ('0000000000000000', '63ac98cdf3843a7a', 'ffffffffffffffff5065746572477265656e6177617953e5ffe553',
+        'PCTv201-8'),
+    ('ffffffffffffffff', '3fb49e2fa12371dd', 'ffffffffffffffff5065746572477265656e6177617953e5ffe553',
+        'PCTv201-9'),
+    ('0001020304050607', '46414781ab387d5f', 'ffffffffffffffff5065746572477265656e6177617953e5ffe553',
+        'PCTv201-10'),
+    ('0011223344556677', 'be09dc81feaca271', 'ffffffffffffffff5065746572477265656e6177617953e5ffe553',
+        'PCTv201-11'),
+    ('0000000000000000', 'e64221e608be30ab', '53e5ffe553',
+        'PCTv201-12'),
+    ('ffffffffffffffff', '862bc60fdcd4d9a9', '53e5ffe553',
+        'PCTv201-13'),
+    ('0001020304050607', '6a34da50fa5e47de', '53e5ffe553',
+        'PCTv201-14'),
+    ('0011223344556677', '584644c34503122c', '53e5ffe553',
+        'PCTv201-15'),
+]
+
+class BufferOverflowTest(unittest.TestCase):
+    # Test a buffer overflow found in older versions of PyCrypto
+
+    def runTest(self):
+        """ARC2 with keylength > 128"""
+        key = b("x") * 16384
+        self.assertRaises(ValueError, ARC2.new, key, ARC2.MODE_ECB)
+
+class KeyLength(unittest.TestCase):
+
+    def runTest(self):
+        ARC2.new(b'\x00' * 16, ARC2.MODE_ECB, effective_keylen=40)
+        self.assertRaises(ValueError, ARC2.new, bchr(0) * 4, ARC2.MODE_ECB)
+        self.assertRaises(ValueError, ARC2.new, bchr(0) * 129, ARC2.MODE_ECB)
+
+        self.assertRaises(ValueError, ARC2.new, bchr(0) * 16, ARC2.MODE_ECB,
+                          effective_keylen=39)
+        self.assertRaises(ValueError, ARC2.new, bchr(0) * 16, ARC2.MODE_ECB,
+                          effective_keylen=1025)
+
+
+class TestOutput(unittest.TestCase):
+
+    def runTest(self):
+        # Encrypt/Decrypt data and test output parameter
+
+        cipher = ARC2.new(b'4'*16, ARC2.MODE_ECB)
+
+        pt = b'5' * 16
+        ct = cipher.encrypt(pt)
+
+        output = bytearray(16)
+        res = cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+        self.assertEqual(res, None)
+        
+        res = cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+        self.assertEqual(res, None)
+
+        output = memoryview(bytearray(16))
+        cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+        
+        cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+
+        self.assertRaises(TypeError, cipher.encrypt, pt, output=b'0'*16)
+        self.assertRaises(TypeError, cipher.decrypt, ct, output=b'0'*16)
+
+        shorter_output = bytearray(7)
+        self.assertRaises(ValueError, cipher.encrypt, pt, output=shorter_output)
+        self.assertRaises(ValueError, cipher.decrypt, ct, output=shorter_output)
+
+
+def get_tests(config={}):
+    from Crypto.Cipher import ARC2
+    from .common import make_block_tests
+
+    tests = make_block_tests(ARC2, "ARC2", test_data)
+    tests.append(BufferOverflowTest())
+    tests.append(KeyLength())
+    tests += [TestOutput()]
+
+    return tests
+
+if __name__ == '__main__':
+    import unittest
+    suite = lambda: unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')
+
+# vim:set ts=4 sw=4 sts=4 expandtab:

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_ARC4.py

@@ -0,0 +1,471 @@
+# -*- coding: utf-8 -*-
+#
+#  SelfTest/Cipher/ARC4.py: Self-test for the Alleged-RC4 cipher
+#
+# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net>
+#
+# ===================================================================
+# The contents of this file are dedicated to the public domain.  To
+# the extent that dedication to the public domain is not available,
+# everyone is granted a worldwide, perpetual, royalty-free,
+# non-exclusive license to exercise all rights associated with the
+# contents of this file for any purpose whatsoever.
+# No rights are reserved.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+# ===================================================================
+
+"""Self-test suite for Crypto.Cipher.ARC4"""
+
+import unittest
+
+from Crypto.Util.py3compat import b
+from Crypto.SelfTest.st_common import list_test_cases
+from binascii import unhexlify
+
+from Crypto.Cipher import ARC4
+
+# This is a list of (plaintext, ciphertext, key[, description]) tuples.
+test_data = [
+    # Test vectors from Eric Rescorla's message with the subject
+    # "RC4 compatibility testing", sent to the cipherpunks mailing list on
+    # September 13, 1994.
+    # http://cypherpunks.venona.com/date/1994/09/msg00420.html
+
+    ('0123456789abcdef', '75b7878099e0c596', '0123456789abcdef',
+        'Test vector 0'),
+
+    ('0000000000000000', '7494c2e7104b0879', '0123456789abcdef',
+        'Test vector 1'),
+
+    ('0000000000000000', 'de188941a3375d3a', '0000000000000000',
+        'Test vector 2'),
+
+    ('00000000000000000000', 'd6a141a7ec3c38dfbd61', 'ef012345',
+        'Test vector 3'),
+
+    ('01' * 512,
+        '7595c3e6114a09780c4ad452338e1ffd9a1be9498f813d76533449b6778dcad8'
+        + 'c78a8d2ba9ac66085d0e53d59c26c2d1c490c1ebbe0ce66d1b6b1b13b6b919b8'
+        + '47c25a91447a95e75e4ef16779cde8bf0a95850e32af9689444fd377108f98fd'
+        + 'cbd4e726567500990bcc7e0ca3c4aaa304a387d20f3b8fbbcd42a1bd311d7a43'
+        + '03dda5ab078896ae80c18b0af66dff319616eb784e495ad2ce90d7f772a81747'
+        + 'b65f62093b1e0db9e5ba532fafec47508323e671327df9444432cb7367cec82f'
+        + '5d44c0d00b67d650a075cd4b70dedd77eb9b10231b6b5b741347396d62897421'
+        + 'd43df9b42e446e358e9c11a9b2184ecbef0cd8e7a877ef968f1390ec9b3d35a5'
+        + '585cb009290e2fcde7b5ec66d9084be44055a619d9dd7fc3166f9487f7cb2729'
+        + '12426445998514c15d53a18c864ce3a2b7555793988126520eacf2e3066e230c'
+        + '91bee4dd5304f5fd0405b35bd99c73135d3d9bc335ee049ef69b3867bf2d7bd1'
+        + 'eaa595d8bfc0066ff8d31509eb0c6caa006c807a623ef84c3d33c195d23ee320'
+        + 'c40de0558157c822d4b8c569d849aed59d4e0fd7f379586b4b7ff684ed6a189f'
+        + '7486d49b9c4bad9ba24b96abf924372c8a8fffb10d55354900a77a3db5f205e1'
+        + 'b99fcd8660863a159ad4abe40fa48934163ddde542a6585540fd683cbfd8c00f'
+        + '12129a284deacc4cdefe58be7137541c047126c8d49e2755ab181ab7e940b0c0',
+        '0123456789abcdef',
+        "Test vector 4"),
+    # shortest key - generated with arc4 package
+    ('7468697320697320616e206578616d706c65',
+     '7260677d38495a09585d69321e17eaf3cdd0',
+     '01'),
+]
+
+
+class RFC6229_Tests(unittest.TestCase):
+    # Test vectors from RFC 6229. Each test vector is a tuple with two items:
+    # the ARC4 key and a dictionary. The dictionary has keystream offsets as keys
+    # and the 16-byte keystream starting at the relevant offset as value.
+    rfc6229_data = [
+      # Page 3
+      (
+        '0102030405',
+        {
+            0:   'b2 39 63 05  f0 3d c0 27   cc c3 52 4a  0a 11 18 a8',
+            16:  '69 82 94 4f  18 fc 82 d5   89 c4 03 a4  7a 0d 09 19',
+            240: '28 cb 11 32  c9 6c e2 86   42 1d ca ad  b8 b6 9e ae',
+            256: '1c fc f6 2b  03 ed db 64   1d 77 df cf  7f 8d 8c 93',
+            496: '42 b7 d0 cd  d9 18 a8 a3   3d d5 17 81  c8 1f 40 41',
+            512: '64 59 84 44  32 a7 da 92   3c fb 3e b4  98 06 61 f6',
+            752: 'ec 10 32 7b  de 2b ee fd   18 f9 27 76  80 45 7e 22',
+            768: 'eb 62 63 8d  4f 0b a1 fe   9f ca 20 e0  5b f8 ff 2b',
+            1008: '45 12 90 48  e6 a0 ed 0b   56 b4 90 33  8f 07 8d a5',
+            1024: '30 ab bc c7  c2 0b 01 60   9f 23 ee 2d  5f 6b b7 df',
+            1520: '32 94 f7 44  d8 f9 79 05   07 e7 0f 62  e5 bb ce ea',
+            1536: 'd8 72 9d b4  18 82 25 9b   ee 4f 82 53  25 f5 a1 30',
+            2032: '1e b1 4a 0c  13 b3 bf 47   fa 2a 0b a9  3a d4 5b 8b',
+            2048: 'cc 58 2f 8b  a9 f2 65 e2   b1 be 91 12  e9 75 d2 d7',
+            3056: 'f2 e3 0f 9b  d1 02 ec bf   75 aa ad e9  bc 35 c4 3c',
+            3072: 'ec 0e 11 c4  79 dc 32 9d   c8 da 79 68  fe 96 56 81',
+            4080: '06 83 26 a2  11 84 16 d2   1f 9d 04 b2  cd 1c a0 50',
+            4096: 'ff 25 b5 89  95 99 67 07   e5 1f bd f0  8b 34 d8 75'
+        }
+      ),
+      # Page 4
+      (
+        '01020304050607',
+        {
+            0:   '29 3f 02 d4  7f 37 c9 b6   33 f2 af 52  85 fe b4 6b',
+            16:  'e6 20 f1 39  0d 19 bd 84   e2 e0 fd 75  20 31 af c1',
+            240: '91 4f 02 53  1c 92 18 81   0d f6 0f 67  e3 38 15 4c',
+            256: 'd0 fd b5 83  07 3c e8 5a   b8 39 17 74  0e c0 11 d5',
+            496: '75 f8 14 11  e8 71 cf fa   70 b9 0c 74  c5 92 e4 54',
+            512: '0b b8 72 02  93 8d ad 60   9e 87 a5 a1  b0 79 e5 e4',
+            752: 'c2 91 12 46  b6 12 e7 e7   b9 03 df ed  a1 da d8 66',
+            768: '32 82 8f 91  50 2b 62 91   36 8d e8 08  1d e3 6f c2',
+            1008: 'f3 b9 a7 e3  b2 97 bf 9a   d8 04 51 2f  90 63 ef f1',
+            1024: '8e cb 67 a9  ba 1f 55 a5   a0 67 e2 b0  26 a3 67 6f',
+            1520: 'd2 aa 90 2b  d4 2d 0d 7c   fd 34 0c d4  58 10 52 9f',
+            1536: '78 b2 72 c9  6e 42 ea b4   c6 0b d9 14  e3 9d 06 e3',
+            2032: 'f4 33 2f d3  1a 07 93 96   ee 3c ee 3f  2a 4f f0 49',
+            2048: '05 45 97 81  d4 1f da 7f   30 c1 be 7e  12 46 c6 23',
+            3056: 'ad fd 38 68  b8 e5 14 85   d5 e6 10 01  7e 3d d6 09',
+            3072: 'ad 26 58 1c  0c 5b e4 5f   4c ea 01 db  2f 38 05 d5',
+            4080: 'f3 17 2c ef  fc 3b 3d 99   7c 85 cc d5  af 1a 95 0c',
+            4096: 'e7 4b 0b 97  31 22 7f d3   7c 0e c0 8a  47 dd d8 b8'
+        }
+      ),
+      (
+        '0102030405060708',
+        {
+            0:   '97 ab 8a 1b  f0 af b9 61   32 f2 f6 72  58 da 15 a8',
+            16:  '82 63 ef db  45 c4 a1 86   84 ef 87 e6  b1 9e 5b 09',
+            240: '96 36 eb c9  84 19 26 f4   f7 d1 f3 62  bd df 6e 18',
+            256: 'd0 a9 90 ff  2c 05 fe f5   b9 03 73 c9  ff 4b 87 0a',
+            496: '73 23 9f 1d  b7 f4 1d 80   b6 43 c0 c5  25 18 ec 63',
+            512: '16 3b 31 99  23 a6 bd b4   52 7c 62 61  26 70 3c 0f',
+            752: '49 d6 c8 af  0f 97 14 4a   87 df 21 d9  14 72 f9 66',
+            768: '44 17 3a 10  3b 66 16 c5   d5 ad 1c ee  40 c8 63 d0',
+            1008: '27 3c 9c 4b  27 f3 22 e4   e7 16 ef 53  a4 7d e7 a4',
+            1024: 'c6 d0 e7 b2  26 25 9f a9   02 34 90 b2  61 67 ad 1d',
+            1520: '1f e8 98 67  13 f0 7c 3d   9a e1 c1 63  ff 8c f9 d3',
+            1536: '83 69 e1 a9  65 61 0b e8   87 fb d0 c7  91 62 aa fb',
+            2032: '0a 01 27 ab  b4 44 84 b9   fb ef 5a bc  ae 1b 57 9f',
+            2048: 'c2 cd ad c6  40 2e 8e e8   66 e1 f3 7b  db 47 e4 2c',
+            3056: '26 b5 1e a3  7d f8 e1 d6   f7 6f c3 b6  6a 74 29 b3',
+            3072: 'bc 76 83 20  5d 4f 44 3d   c1 f2 9d da  33 15 c8 7b',
+            4080: 'd5 fa 5a 34  69 d2 9a aa   f8 3d 23 58  9d b8 c8 5b',
+            4096: '3f b4 6e 2c  8f 0f 06 8e   dc e8 cd cd  7d fc 58 62'
+        }
+      ),
+      # Page 5
+      (
+        '0102030405060708090a',
+        {
+            0:   'ed e3 b0 46  43 e5 86 cc   90 7d c2 18  51 70 99 02',
+            16:  '03 51 6b a7  8f 41 3b eb   22 3a a5 d4  d2 df 67 11',
+            240: '3c fd 6c b5  8e e0 fd de   64 01 76 ad  00 00 04 4d',
+            256: '48 53 2b 21  fb 60 79 c9   11 4c 0f fd  9c 04 a1 ad',
+            496: '3e 8c ea 98  01 71 09 97   90 84 b1 ef  92 f9 9d 86',
+            512: 'e2 0f b4 9b  db 33 7e e4   8b 8d 8d c0  f4 af ef fe',
+            752: '5c 25 21 ea  cd 79 66 f1   5e 05 65 44  be a0 d3 15',
+            768: 'e0 67 a7 03  19 31 a2 46   a6 c3 87 5d  2f 67 8a cb',
+            1008: 'a6 4f 70 af  88 ae 56 b6   f8 75 81 c0  e2 3e 6b 08',
+            1024: 'f4 49 03 1d  e3 12 81 4e   c6 f3 19 29  1f 4a 05 16',
+            1520: 'bd ae 85 92  4b 3c b1 d0   a2 e3 3a 30  c6 d7 95 99',
+            1536: '8a 0f ed db  ac 86 5a 09   bc d1 27 fb  56 2e d6 0a',
+            2032: 'b5 5a 0a 5b  51 a1 2a 8b   e3 48 99 c3  e0 47 51 1a',
+            2048: 'd9 a0 9c ea  3c e7 5f e3   96 98 07 03  17 a7 13 39',
+            3056: '55 22 25 ed  11 77 f4 45   84 ac 8c fa  6c 4e b5 fc',
+            3072: '7e 82 cb ab  fc 95 38 1b   08 09 98 44  21 29 c2 f8',
+            4080: '1f 13 5e d1  4c e6 0a 91   36 9d 23 22  be f2 5e 3c',
+            4096: '08 b6 be 45  12 4a 43 e2   eb 77 95 3f  84 dc 85 53'
+        }
+      ),
+      (
+        '0102030405060708090a0b0c0d0e0f10',
+        {
+            0:   '9a c7 cc 9a  60 9d 1e f7   b2 93 28 99  cd e4 1b 97',
+            16:  '52 48 c4 95  90 14 12 6a   6e 8a 84 f1  1d 1a 9e 1c',
+            240: '06 59 02 e4  b6 20 f6 cc   36 c8 58 9f  66 43 2f 2b',
+            256: 'd3 9d 56 6b  c6 bc e3 01   07 68 15 15  49 f3 87 3f',
+            496: 'b6 d1 e6 c4  a5 e4 77 1c   ad 79 53 8d  f2 95 fb 11',
+            512: 'c6 8c 1d 5c  55 9a 97 41   23 df 1d bc  52 a4 3b 89',
+            752: 'c5 ec f8 8d  e8 97 fd 57   fe d3 01 70  1b 82 a2 59',
+            768: 'ec cb e1 3d  e1 fc c9 1c   11 a0 b2 6c  0b c8 fa 4d',
+            1008: 'e7 a7 25 74  f8 78 2a e2   6a ab cf 9e  bc d6 60 65',
+            1024: 'bd f0 32 4e  60 83 dc c6   d3 ce dd 3c  a8 c5 3c 16',
+            1520: 'b4 01 10 c4  19 0b 56 22   a9 61 16 b0  01 7e d2 97',
+            1536: 'ff a0 b5 14  64 7e c0 4f   63 06 b8 92  ae 66 11 81',
+            2032: 'd0 3d 1b c0  3c d3 3d 70   df f9 fa 5d  71 96 3e bd',
+            2048: '8a 44 12 64  11 ea a7 8b   d5 1e 8d 87  a8 87 9b f5',
+            3056: 'fa be b7 60  28 ad e2 d0   e4 87 22 e4  6c 46 15 a3',
+            3072: 'c0 5d 88 ab  d5 03 57 f9   35 a6 3c 59  ee 53 76 23',
+            4080: 'ff 38 26 5c  16 42 c1 ab   e8 d3 c2 fe  5e 57 2b f8',
+            4096: 'a3 6a 4c 30  1a e8 ac 13   61 0c cb c1  22 56 ca cc'
+        }
+      ),
+      # Page 6
+      (
+        '0102030405060708090a0b0c0d0e0f101112131415161718',
+        {
+            0:   '05 95 e5 7f  e5 f0 bb 3c   70 6e da c8  a4 b2 db 11',
+            16:  'df de 31 34  4a 1a f7 69   c7 4f 07 0a  ee 9e 23 26',
+            240: 'b0 6b 9b 1e  19 5d 13 d8   f4 a7 99 5c  45 53 ac 05',
+            256: '6b d2 37 8e  c3 41 c9 a4   2f 37 ba 79  f8 8a 32 ff',
+            496: 'e7 0b ce 1d  f7 64 5a db   5d 2c 41 30  21 5c 35 22',
+            512: '9a 57 30 c7  fc b4 c9 af   51 ff da 89  c7 f1 ad 22',
+            752: '04 85 05 5f  d4 f6 f0 d9   63 ef 5a b9  a5 47 69 82',
+            768: '59 1f c6 6b  cd a1 0e 45   2b 03 d4 55  1f 6b 62 ac',
+            1008: '27 53 cc 83  98 8a fa 3e   16 88 a1 d3  b4 2c 9a 02',
+            1024: '93 61 0d 52  3d 1d 3f 00   62 b3 c2 a3  bb c7 c7 f0',
+            1520: '96 c2 48 61  0a ad ed fe   af 89 78 c0  3d e8 20 5a',
+            1536: '0e 31 7b 3d  1c 73 b9 e9   a4 68 8f 29  6d 13 3a 19',
+            2032: 'bd f0 e6 c3  cc a5 b5 b9   d5 33 b6 9c  56 ad a1 20',
+            2048: '88 a2 18 b6  e2 ec e1 e6   24 6d 44 c7  59 d1 9b 10',
+            3056: '68 66 39 7e  95 c1 40 53   4f 94 26 34  21 00 6e 40',
+            3072: '32 cb 0a 1e  95 42 c6 b3   b8 b3 98 ab  c3 b0 f1 d5',
+            4080: '29 a0 b8 ae  d5 4a 13 23   24 c6 2e 42  3f 54 b4 c8',
+            4096: '3c b0 f3 b5  02 0a 98 b8   2a f9 fe 15  44 84 a1 68'
+        }
+      ),
+      (
+        '0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20',
+        {
+            0:   'ea a6 bd 25  88 0b f9 3d   3f 5d 1e 4c  a2 61 1d 91',
+            16:  'cf a4 5c 9f  7e 71 4b 54   bd fa 80 02  7c b1 43 80',
+            240: '11 4a e3 44  de d7 1b 35   f2 e6 0f eb  ad 72 7f d8',
+            256: '02 e1 e7 05  6b 0f 62 39   00 49 64 22  94 3e 97 b6',
+            496: '91 cb 93 c7  87 96 4e 10   d9 52 7d 99  9c 6f 93 6b',
+            512: '49 b1 8b 42  f8 e8 36 7c   be b5 ef 10  4b a1 c7 cd',
+            752: '87 08 4b 3b  a7 00 ba de   95 56 10 67  27 45 b3 74',
+            768: 'e7 a7 b9 e9  ec 54 0d 5f   f4 3b db 12  79 2d 1b 35',
+            1008: 'c7 99 b5 96  73 8f 6b 01   8c 76 c7 4b  17 59 bd 90',
+            1024: '7f ec 5b fd  9f 9b 89 ce   65 48 30 90  92 d7 e9 58',
+            1520: '40 f2 50 b2  6d 1f 09 6a   4a fd 4c 34  0a 58 88 15',
+            1536: '3e 34 13 5c  79 db 01 02   00 76 76 51  cf 26 30 73',
+            2032: 'f6 56 ab cc  f8 8d d8 27   02 7b 2c e9  17 d4 64 ec',
+            2048: '18 b6 25 03  bf bc 07 7f   ba bb 98 f2  0d 98 ab 34',
+            3056: '8a ed 95 ee  5b 0d cb fb   ef 4e b2 1d  3a 3f 52 f9',
+            3072: '62 5a 1a b0  0e e3 9a 53   27 34 6b dd  b0 1a 9c 18',
+            4080: 'a1 3a 7c 79  c7 e1 19 b5   ab 02 96 ab  28 c3 00 b9',
+            4096: 'f3 e4 c0 a2  e0 2d 1d 01   f7 f0 a7 46  18 af 2b 48'
+        }
+      ),
+      # Page 7
+      (
+        '833222772a',
+        {
+            0:   '80 ad 97 bd  c9 73 df 8a   2e 87 9e 92  a4 97 ef da',
+            16:  '20 f0 60 c2  f2 e5 12 65   01 d3 d4 fe  a1 0d 5f c0',
+            240: 'fa a1 48 e9  90 46 18 1f   ec 6b 20 85  f3 b2 0e d9',
+            256: 'f0 da f5 ba  b3 d5 96 83   98 57 84 6f  73 fb fe 5a',
+            496: '1c 7e 2f c4  63 92 32 fe   29 75 84 b2  96 99 6b c8',
+            512: '3d b9 b2 49  40 6c c8 ed   ff ac 55 cc  d3 22 ba 12',
+            752: 'e4 f9 f7 e0  06 61 54 bb   d1 25 b7 45  56 9b c8 97',
+            768: '75 d5 ef 26  2b 44 c4 1a   9c f6 3a e1  45 68 e1 b9',
+            1008: '6d a4 53 db  f8 1e 82 33   4a 3d 88 66  cb 50 a1 e3',
+            1024: '78 28 d0 74  11 9c ab 5c   22 b2 94 d7  a9 bf a0 bb',
+            1520: 'ad b8 9c ea  9a 15 fb e6   17 29 5b d0  4b 8c a0 5c',
+            1536: '62 51 d8 7f  d4 aa ae 9a   7e 4a d5 c2  17 d3 f3 00',
+            2032: 'e7 11 9b d6  dd 9b 22 af   e8 f8 95 85  43 28 81 e2',
+            2048: '78 5b 60 fd  7e c4 e9 fc   b6 54 5f 35  0d 66 0f ab',
+            3056: 'af ec c0 37  fd b7 b0 83   8e b3 d7 0b  cd 26 83 82',
+            3072: 'db c1 a7 b4  9d 57 35 8c   c9 fa 6d 61  d7 3b 7c f0',
+            4080: '63 49 d1 26  a3 7a fc ba   89 79 4f 98  04 91 4f dc',
+            4096: 'bf 42 c3 01  8c 2f 7c 66   bf de 52 49  75 76 81 15'
+        }
+      ),
+      (
+        '1910833222772a',
+        {
+            0:   'bc 92 22 db  d3 27 4d 8f   c6 6d 14 cc  bd a6 69 0b',
+            16:  '7a e6 27 41  0c 9a 2b e6   93 df 5b b7  48 5a 63 e3',
+            240: '3f 09 31 aa  03 de fb 30   0f 06 01 03  82 6f 2a 64',
+            256: 'be aa 9e c8  d5 9b b6 81   29 f3 02 7c  96 36 11 81',
+            496: '74 e0 4d b4  6d 28 64 8d   7d ee 8a 00  64 b0 6c fe',
+            512: '9b 5e 81 c6  2f e0 23 c5   5b e4 2f 87  bb f9 32 b8',
+            752: 'ce 17 8f c1  82 6e fe cb   c1 82 f5 79  99 a4 61 40',
+            768: '8b df 55 cd  55 06 1c 06   db a6 be 11  de 4a 57 8a',
+            1008: '62 6f 5f 4d  ce 65 25 01   f3 08 7d 39  c9 2c c3 49',
+            1024: '42 da ac 6a  8f 9a b9 a7   fd 13 7c 60  37 82 56 82',
+            1520: 'cc 03 fd b7  91 92 a2 07   31 2f 53 f5  d4 dc 33 d9',
+            1536: 'f7 0f 14 12  2a 1c 98 a3   15 5d 28 b8  a0 a8 a4 1d',
+            2032: '2a 3a 30 7a  b2 70 8a 9c   00 fe 0b 42  f9 c2 d6 a1',
+            2048: '86 26 17 62  7d 22 61 ea   b0 b1 24 65  97 ca 0a e9',
+            3056: '55 f8 77 ce  4f 2e 1d db   bf 8e 13 e2  cd e0 fd c8',
+            3072: '1b 15 56 cb  93 5f 17 33   37 70 5f bb  5d 50 1f c1',
+            4080: 'ec d0 e9 66  02 be 7f 8d   50 92 81 6c  cc f2 c2 e9',
+            4096: '02 78 81 fa  b4 99 3a 1c   26 20 24 a9  4f ff 3f 61'
+        }
+      ),
+      # Page 8
+      (
+        '641910833222772a',
+        {
+            0:   'bb f6 09 de  94 13 17 2d   07 66 0c b6  80 71 69 26',
+            16:  '46 10 1a 6d  ab 43 11 5d   6c 52 2b 4f  e9 36 04 a9',
+            240: 'cb e1 ff f2  1c 96 f3 ee   f6 1e 8f e0  54 2c bd f0',
+            256: '34 79 38 bf  fa 40 09 c5   12 cf b4 03  4b 0d d1 a7',
+            496: '78 67 a7 86  d0 0a 71 47   90 4d 76 dd  f1 e5 20 e3',
+            512: '8d 3e 9e 1c  ae fc cc b3   fb f8 d1 8f  64 12 0b 32',
+            752: '94 23 37 f8  fd 76 f0 fa   e8 c5 2d 79  54 81 06 72',
+            768: 'b8 54 8c 10  f5 16 67 f6   e6 0e 18 2f  a1 9b 30 f7',
+            1008: '02 11 c7 c6  19 0c 9e fd   12 37 c3 4c  8f 2e 06 c4',
+            1024: 'bd a6 4f 65  27 6d 2a ac   b8 f9 02 12  20 3a 80 8e',
+            1520: 'bd 38 20 f7  32 ff b5 3e   c1 93 e7 9d  33 e2 7c 73',
+            1536: 'd0 16 86 16  86 19 07 d4   82 e3 6c da  c8 cf 57 49',
+            2032: '97 b0 f0 f2  24 b2 d2 31   71 14 80 8f  b0 3a f7 a0',
+            2048: 'e5 96 16 e4  69 78 79 39   a0 63 ce ea  9a f9 56 d1',
+            3056: 'c4 7e 0d c1  66 09 19 c1   11 01 20 8f  9e 69 aa 1f',
+            3072: '5a e4 f1 28  96 b8 37 9a   2a ad 89 b5  b5 53 d6 b0',
+            4080: '6b 6b 09 8d  0c 29 3b c2   99 3d 80 bf  05 18 b6 d9',
+            4096: '81 70 cc 3c  cd 92 a6 98   62 1b 93 9d  d3 8f e7 b9'
+        }
+      ),
+      (
+        '8b37641910833222772a',
+        {
+            0:   'ab 65 c2 6e  dd b2 87 60   0d b2 fd a1  0d 1e 60 5c',
+            16:  'bb 75 90 10  c2 96 58 f2   c7 2d 93 a2  d1 6d 29 30',
+            240: 'b9 01 e8 03  6e d1 c3 83   cd 3c 4c 4d  d0 a6 ab 05',
+            256: '3d 25 ce 49  22 92 4c 55   f0 64 94 33  53 d7 8a 6c',
+            496: '12 c1 aa 44  bb f8 7e 75   e6 11 f6 9b  2c 38 f4 9b',
+            512: '28 f2 b3 43  4b 65 c0 98   77 47 00 44  c6 ea 17 0d',
+            752: 'bd 9e f8 22  de 52 88 19   61 34 cf 8a  f7 83 93 04',
+            768: '67 55 9c 23  f0 52 15 84   70 a2 96 f7  25 73 5a 32',
+            1008: '8b ab 26 fb  c2 c1 2b 0f   13 e2 ab 18  5e ab f2 41',
+            1024: '31 18 5a 6d  69 6f 0c fa   9b 42 80 8b  38 e1 32 a2',
+            1520: '56 4d 3d ae  18 3c 52 34   c8 af 1e 51  06 1c 44 b5',
+            1536: '3c 07 78 a7  b5 f7 2d 3c   23 a3 13 5c  7d 67 b9 f4',
+            2032: 'f3 43 69 89  0f cf 16 fb   51 7d ca ae  44 63 b2 dd',
+            2048: '02 f3 1c 81  e8 20 07 31   b8 99 b0 28  e7 91 bf a7',
+            3056: '72 da 64 62  83 22 8c 14   30 08 53 70  17 95 61 6f',
+            3072: '4e 0a 8c 6f  79 34 a7 88   e2 26 5e 81  d6 d0 c8 f4',
+            4080: '43 8d d5 ea  fe a0 11 1b   6f 36 b4 b9  38 da 2a 68',
+            4096: '5f 6b fc 73  81 58 74 d9   71 00 f0 86  97 93 57 d8'
+        }
+      ),
+      # Page 9
+      (
+        'ebb46227c6cc8b37641910833222772a',
+        {
+            0:   '72 0c 94 b6  3e df 44 e1   31 d9 50 ca  21 1a 5a 30',
+            16:  'c3 66 fd ea  cf 9c a8 04   36 be 7c 35  84 24 d2 0b',
+            240: 'b3 39 4a 40  aa bf 75 cb   a4 22 82 ef  25 a0 05 9f',
+            256: '48 47 d8 1d  a4 94 2d bc   24 9d ef c4  8c 92 2b 9f',
+            496: '08 12 8c 46  9f 27 53 42   ad da 20 2b  2b 58 da 95',
+            512: '97 0d ac ef  40 ad 98 72   3b ac 5d 69  55 b8 17 61',
+            752: '3c b8 99 93  b0 7b 0c ed   93 de 13 d2  a1 10 13 ac',
+            768: 'ef 2d 67 6f  15 45 c2 c1   3d c6 80 a0  2f 4a db fe',
+            1008: 'b6 05 95 51  4f 24 bc 9f   e5 22 a6 ca  d7 39 36 44',
+            1024: 'b5 15 a8 c5  01 17 54 f5   90 03 05 8b  db 81 51 4e',
+            1520: '3c 70 04 7e  8c bc 03 8e   3b 98 20 db  60 1d a4 95',
+            1536: '11 75 da 6e  e7 56 de 46   a5 3e 2b 07  56 60 b7 70',
+            2032: '00 a5 42 bb  a0 21 11 cc   2c 65 b3 8e  bd ba 58 7e',
+            2048: '58 65 fd bb  5b 48 06 41   04 e8 30 b3  80 f2 ae de',
+            3056: '34 b2 1a d2  ad 44 e9 99   db 2d 7f 08  63 f0 d9 b6',
+            3072: '84 a9 21 8f  c3 6e 8a 5f   2c cf be ae  53 a2 7d 25',
+            4080: 'a2 22 1a 11  b8 33 cc b4   98 a5 95 40  f0 54 5f 4a',
+            4096: '5b be b4 78  7d 59 e5 37   3f db ea 6c  6f 75 c2 9b'
+        }
+      ),
+      (
+        'c109163908ebe51debb46227c6cc8b37641910833222772a',
+        {
+            0:   '54 b6 4e 6b  5a 20 b5 e2   ec 84 59 3d  c7 98 9d a7',
+            16:  'c1 35 ee e2  37 a8 54 65   ff 97 dc 03  92 4f 45 ce',
+            240: 'cf cc 92 2f  b4 a1 4a b4   5d 61 75 aa  bb f2 d2 01',
+            256: '83 7b 87 e2  a4 46 ad 0e   f7 98 ac d0  2b 94 12 4f',
+            496: '17 a6 db d6  64 92 6a 06   36 b3 f4 c3  7a 4f 46 94',
+            512: '4a 5f 9f 26  ae ee d4 d4   a2 5f 63 2d  30 52 33 d9',
+            752: '80 a3 d0 1e  f0 0c 8e 9a   42 09 c1 7f  4e eb 35 8c',
+            768: 'd1 5e 7d 5f  fa aa bc 02   07 bf 20 0a  11 77 93 a2',
+            1008: '34 96 82 bf  58 8e aa 52   d0 aa 15 60  34 6a ea fa',
+            1024: 'f5 85 4c db  76 c8 89 e3   ad 63 35 4e  5f 72 75 e3',
+            1520: '53 2c 7c ec  cb 39 df 32   36 31 84 05  a4 b1 27 9c',
+            1536: 'ba ef e6 d9  ce b6 51 84   22 60 e0 d1  e0 5e 3b 90',
+            2032: 'e8 2d 8c 6d  b5 4e 3c 63   3f 58 1c 95  2b a0 42 07',
+            2048: '4b 16 e5 0a  bd 38 1b d7   09 00 a9 cd  9a 62 cb 23',
+            3056: '36 82 ee 33  bd 14 8b d9   f5 86 56 cd  8f 30 d9 fb',
+            3072: '1e 5a 0b 84  75 04 5d 9b   20 b2 62 86  24 ed fd 9e',
+            4080: '63 ed d6 84  fb 82 62 82   fe 52 8f 9c  0e 92 37 bc',
+            4096: 'e4 dd 2e 98  d6 96 0f ae   0b 43 54 54  56 74 33 91'
+        }
+      ),
+      # Page 10
+      (
+        '1ada31d5cf688221c109163908ebe51debb46227c6cc8b37641910833222772a',
+        {
+            0:   'dd 5b cb 00  18 e9 22 d4   94 75 9d 7c  39 5d 02 d3',
+            16:  'c8 44 6f 8f  77 ab f7 37   68 53 53 eb  89 a1 c9 eb',
+            240: 'af 3e 30 f9  c0 95 04 59   38 15 15 75  c3 fb 90 98',
+            256: 'f8 cb 62 74  db 99 b8 0b   1d 20 12 a9  8e d4 8f 0e',
+            496: '25 c3 00 5a  1c b8 5d e0   76 25 98 39  ab 71 98 ab',
+            512: '9d cb c1 83  e8 cb 99 4b   72 7b 75 be  31 80 76 9c',
+            752: 'a1 d3 07 8d  fa 91 69 50   3e d9 d4 49  1d ee 4e b2',
+            768: '85 14 a5 49  58 58 09 6f   59 6e 4b cd  66 b1 06 65',
+            1008: '5f 40 d5 9e  c1 b0 3b 33   73 8e fa 60  b2 25 5d 31',
+            1024: '34 77 c7 f7  64 a4 1b ac   ef f9 0b f1  4f 92 b7 cc',
+            1520: 'ac 4e 95 36  8d 99 b9 eb   78 b8 da 8f  81 ff a7 95',
+            1536: '8c 3c 13 f8  c2 38 8b b7   3f 38 57 6e  65 b7 c4 46',
+            2032: '13 c4 b9 c1  df b6 65 79   ed dd 8a 28  0b 9f 73 16',
+            2048: 'dd d2 78 20  55 01 26 69   8e fa ad c6  4b 64 f6 6e',
+            3056: 'f0 8f 2e 66  d2 8e d1 43   f3 a2 37 cf  9d e7 35 59',
+            3072: '9e a3 6c 52  55 31 b8 80   ba 12 43 34  f5 7b 0b 70',
+            4080: 'd5 a3 9e 3d  fc c5 02 80   ba c4 a6 b5  aa 0d ca 7d',
+            4096: '37 0b 1c 1f  e6 55 91 6d   97 fd 0d 47  ca 1d 72 b8'
+        }
+      )
+    ]
+
+    def test_keystream(self):
+        for tv in self.rfc6229_data:
+            key = unhexlify(b((tv[0])))
+            cipher = ARC4.new(key)
+            count = 0
+            for offset in range(0, 4096+1, 16):
+                ct = cipher.encrypt(b('\x00')*16)
+                expected = tv[1].get(offset)
+                if expected:
+                    expected = unhexlify(b(expected.replace(" ", '')))
+                    self.assertEqual(ct, expected)
+                    count += 1
+            self.assertEqual(count, len(tv[1]))
+
+
+class Drop_Tests(unittest.TestCase):
+    key = b('\xAA')*16
+    data = b('\x00')*5000
+
+    def setUp(self):
+        self.cipher = ARC4.new(self.key)
+
+    def test_drop256_encrypt(self):
+        cipher_drop = ARC4.new(self.key, 256)
+        ct_drop = cipher_drop.encrypt(self.data[:16])
+        ct = self.cipher.encrypt(self.data)[256:256+16]
+        self.assertEqual(ct_drop, ct)
+
+    def test_drop256_decrypt(self):
+        cipher_drop = ARC4.new(self.key, 256)
+        pt_drop = cipher_drop.decrypt(self.data[:16])
+        pt = self.cipher.decrypt(self.data)[256:256+16]
+        self.assertEqual(pt_drop, pt)
+
+
+class KeyLength(unittest.TestCase):
+
+    def runTest(self):
+        self.assertRaises(ValueError, ARC4.new, b'')
+        self.assertRaises(ValueError, ARC4.new, b'\x00' * 257)
+
+
+def get_tests(config={}):
+    from .common import make_stream_tests
+    tests = make_stream_tests(ARC4, "ARC4", test_data)
+    tests += list_test_cases(RFC6229_Tests)
+    tests += list_test_cases(Drop_Tests)
+    tests.append(KeyLength())
+    return tests
+
+
+if __name__ == '__main__':
+    def suite():
+        return unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_Blowfish.py

@@ -0,0 +1,160 @@
+# -*- coding: utf-8 -*-
+#
+#  SelfTest/Cipher/test_Blowfish.py: Self-test for the Blowfish cipher
+#
+# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net>
+#
+# ===================================================================
+# The contents of this file are dedicated to the public domain.  To
+# the extent that dedication to the public domain is not available,
+# everyone is granted a worldwide, perpetual, royalty-free,
+# non-exclusive license to exercise all rights associated with the
+# contents of this file for any purpose whatsoever.
+# No rights are reserved.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+# ===================================================================
+
+"""Self-test suite for Crypto.Cipher.Blowfish"""
+
+import unittest
+
+from Crypto.Util.py3compat import bchr
+
+from Crypto.Cipher import Blowfish
+
+# This is a list of (plaintext, ciphertext, key) tuples.
+test_data = [
+    # Test vectors from http://www.schneier.com/code/vectors.txt
+    ('0000000000000000', '4ef997456198dd78', '0000000000000000'),
+    ('ffffffffffffffff', '51866fd5b85ecb8a', 'ffffffffffffffff'),
+    ('1000000000000001', '7d856f9a613063f2', '3000000000000000'),
+    ('1111111111111111', '2466dd878b963c9d', '1111111111111111'),
+    ('1111111111111111', '61f9c3802281b096', '0123456789abcdef'),
+    ('0123456789abcdef', '7d0cc630afda1ec7', '1111111111111111'),
+    ('0000000000000000', '4ef997456198dd78', '0000000000000000'),
+    ('0123456789abcdef', '0aceab0fc6a0a28d', 'fedcba9876543210'),
+    ('01a1d6d039776742', '59c68245eb05282b', '7ca110454a1a6e57'),
+    ('5cd54ca83def57da', 'b1b8cc0b250f09a0', '0131d9619dc1376e'),
+    ('0248d43806f67172', '1730e5778bea1da4', '07a1133e4a0b2686'),
+    ('51454b582ddf440a', 'a25e7856cf2651eb', '3849674c2602319e'),
+    ('42fd443059577fa2', '353882b109ce8f1a', '04b915ba43feb5b6'),
+    ('059b5e0851cf143a', '48f4d0884c379918', '0113b970fd34f2ce'),
+    ('0756d8e0774761d2', '432193b78951fc98', '0170f175468fb5e6'),
+    ('762514b829bf486a', '13f04154d69d1ae5', '43297fad38e373fe'),
+    ('3bdd119049372802', '2eedda93ffd39c79', '07a7137045da2a16'),
+    ('26955f6835af609a', 'd887e0393c2da6e3', '04689104c2fd3b2f'),
+    ('164d5e404f275232', '5f99d04f5b163969', '37d06bb516cb7546'),
+    ('6b056e18759f5cca', '4a057a3b24d3977b', '1f08260d1ac2465e'),
+    ('004bd6ef09176062', '452031c1e4fada8e', '584023641aba6176'),
+    ('480d39006ee762f2', '7555ae39f59b87bd', '025816164629b007'),
+    ('437540c8698f3cfa', '53c55f9cb49fc019', '49793ebc79b3258f'),
+    ('072d43a077075292', '7a8e7bfa937e89a3', '4fb05e1515ab73a7'),
+    ('02fe55778117f12a', 'cf9c5d7a4986adb5', '49e95d6d4ca229bf'),
+    ('1d9d5c5018f728c2', 'd1abb290658bc778', '018310dc409b26d6'),
+    ('305532286d6f295a', '55cb3774d13ef201', '1c587f1c13924fef'),
+    ('0123456789abcdef', 'fa34ec4847b268b2', '0101010101010101'),
+    ('0123456789abcdef', 'a790795108ea3cae', '1f1f1f1f0e0e0e0e'),
+    ('0123456789abcdef', 'c39e072d9fac631d', 'e0fee0fef1fef1fe'),
+    ('ffffffffffffffff', '014933e0cdaff6e4', '0000000000000000'),
+    ('0000000000000000', 'f21e9a77b71c49bc', 'ffffffffffffffff'),
+    ('0000000000000000', '245946885754369a', '0123456789abcdef'),
+    ('ffffffffffffffff', '6b5c5a9c5d9e0a5a', 'fedcba9876543210'),
+    #('fedcba9876543210', 'f9ad597c49db005e', 'f0'),
+    #('fedcba9876543210', 'e91d21c1d961a6d6', 'f0e1'),
+    #('fedcba9876543210', 'e9c2b70a1bc65cf3', 'f0e1d2'),
+    ('fedcba9876543210', 'be1e639408640f05', 'f0e1d2c3'),
+    ('fedcba9876543210', 'b39e44481bdb1e6e', 'f0e1d2c3b4'),
+    ('fedcba9876543210', '9457aa83b1928c0d', 'f0e1d2c3b4a5'),
+    ('fedcba9876543210', '8bb77032f960629d', 'f0e1d2c3b4a596'),
+    ('fedcba9876543210', 'e87a244e2cc85e82', 'f0e1d2c3b4a59687'),
+    ('fedcba9876543210', '15750e7a4f4ec577', 'f0e1d2c3b4a5968778'),
+    ('fedcba9876543210', '122ba70b3ab64ae0', 'f0e1d2c3b4a596877869'),
+    ('fedcba9876543210', '3a833c9affc537f6', 'f0e1d2c3b4a5968778695a'),
+    ('fedcba9876543210', '9409da87a90f6bf2', 'f0e1d2c3b4a5968778695a4b'),
+    ('fedcba9876543210', '884f80625060b8b4', 'f0e1d2c3b4a5968778695a4b3c'),
+    ('fedcba9876543210', '1f85031c19e11968', 'f0e1d2c3b4a5968778695a4b3c2d'),
+    ('fedcba9876543210', '79d9373a714ca34f', 'f0e1d2c3b4a5968778695a4b3c2d1e'),
+    ('fedcba9876543210', '93142887ee3be15c',
+        'f0e1d2c3b4a5968778695a4b3c2d1e0f'),
+    ('fedcba9876543210', '03429e838ce2d14b',
+        'f0e1d2c3b4a5968778695a4b3c2d1e0f00'),
+    ('fedcba9876543210', 'a4299e27469ff67b',
+        'f0e1d2c3b4a5968778695a4b3c2d1e0f0011'),
+    ('fedcba9876543210', 'afd5aed1c1bc96a8',
+        'f0e1d2c3b4a5968778695a4b3c2d1e0f001122'),
+    ('fedcba9876543210', '10851c0e3858da9f',
+        'f0e1d2c3b4a5968778695a4b3c2d1e0f00112233'),
+    ('fedcba9876543210', 'e6f51ed79b9db21f',
+        'f0e1d2c3b4a5968778695a4b3c2d1e0f0011223344'),
+    ('fedcba9876543210', '64a6e14afd36b46f',
+        'f0e1d2c3b4a5968778695a4b3c2d1e0f001122334455'),
+    ('fedcba9876543210', '80c7d7d45a5479ad',
+        'f0e1d2c3b4a5968778695a4b3c2d1e0f00112233445566'),
+    ('fedcba9876543210', '05044b62fa52d080',
+        'f0e1d2c3b4a5968778695a4b3c2d1e0f0011223344556677'),
+]
+
+
+class KeyLength(unittest.TestCase):
+
+    def runTest(self):
+        self.assertRaises(ValueError, Blowfish.new, bchr(0) * 3,
+                          Blowfish.MODE_ECB)
+        self.assertRaises(ValueError, Blowfish.new, bchr(0) * 57,
+                          Blowfish.MODE_ECB)
+
+
+class TestOutput(unittest.TestCase):
+
+    def runTest(self):
+        # Encrypt/Decrypt data and test output parameter
+
+        cipher = Blowfish.new(b'4'*16, Blowfish.MODE_ECB)
+
+        pt = b'5' * 16
+        ct = cipher.encrypt(pt)
+
+        output = bytearray(16)
+        res = cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+        self.assertEqual(res, None)
+        
+        res = cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+        self.assertEqual(res, None)
+
+        output = memoryview(bytearray(16))
+        cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+        
+        cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+
+        self.assertRaises(TypeError, cipher.encrypt, pt, output=b'0'*16)
+        self.assertRaises(TypeError, cipher.decrypt, ct, output=b'0'*16)
+
+        shorter_output = bytearray(7)
+        self.assertRaises(ValueError, cipher.encrypt, pt, output=shorter_output)
+        self.assertRaises(ValueError, cipher.decrypt, ct, output=shorter_output)
+
+
+def get_tests(config={}):
+    from .common import make_block_tests
+    tests = make_block_tests(Blowfish, "Blowfish", test_data)
+    tests.append(KeyLength())
+    tests += [TestOutput()]
+    return tests
+
+
+if __name__ == '__main__':
+    import unittest
+    suite = lambda: unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_CAST.py

@@ -0,0 +1,101 @@
+# -*- coding: utf-8 -*-
+#
+#  SelfTest/Cipher/CAST.py: Self-test for the CAST-128 (CAST5) cipher
+#
+# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net>
+#
+# ===================================================================
+# The contents of this file are dedicated to the public domain.  To
+# the extent that dedication to the public domain is not available,
+# everyone is granted a worldwide, perpetual, royalty-free,
+# non-exclusive license to exercise all rights associated with the
+# contents of this file for any purpose whatsoever.
+# No rights are reserved.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+# ===================================================================
+
+"""Self-test suite for Crypto.Cipher.CAST"""
+
+import unittest
+
+from Crypto.Util.py3compat import bchr
+
+from Crypto.Cipher import CAST
+
+# This is a list of (plaintext, ciphertext, key) tuples.
+test_data = [
+    # Test vectors from RFC 2144, B.1
+    ('0123456789abcdef', '238b4fe5847e44b2',
+        '0123456712345678234567893456789a',
+        '128-bit key'),
+
+    ('0123456789abcdef', 'eb6a711a2c02271b',
+        '01234567123456782345',
+        '80-bit key'),
+
+    ('0123456789abcdef', '7ac816d16e9b302e',
+        '0123456712',
+        '40-bit key'),
+]
+
+
+class KeyLength(unittest.TestCase):
+
+    def runTest(self):
+        self.assertRaises(ValueError, CAST.new, bchr(0) * 4, CAST.MODE_ECB)
+        self.assertRaises(ValueError, CAST.new, bchr(0) * 17, CAST.MODE_ECB)
+
+
+class TestOutput(unittest.TestCase):
+
+    def runTest(self):
+        # Encrypt/Decrypt data and test output parameter
+
+        cipher = CAST.new(b'4'*16, CAST.MODE_ECB)
+
+        pt = b'5' * 16
+        ct = cipher.encrypt(pt)
+
+        output = bytearray(16)
+        res = cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+        self.assertEqual(res, None)
+        
+        res = cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+        self.assertEqual(res, None)
+
+        output = memoryview(bytearray(16))
+        cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+        
+        cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+
+        self.assertRaises(TypeError, cipher.encrypt, pt, output=b'0'*16)
+        self.assertRaises(TypeError, cipher.decrypt, ct, output=b'0'*16)
+
+        shorter_output = bytearray(7)
+        self.assertRaises(ValueError, cipher.encrypt, pt, output=shorter_output)
+        self.assertRaises(ValueError, cipher.decrypt, ct, output=shorter_output)
+
+
+def get_tests(config={}):
+    from .common import make_block_tests
+
+    tests = make_block_tests(CAST, "CAST", test_data)
+    tests.append(KeyLength())
+    tests.append(TestOutput())
+    return tests
+
+if __name__ == '__main__':
+    suite = lambda: unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_CBC.py

@@ -0,0 +1,556 @@
+# ===================================================================
+#
+# Copyright (c) 2014, Legrandin <helderijs@gmail.com>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+# ===================================================================
+
+import unittest
+from binascii import unhexlify
+
+from Crypto.SelfTest.loader import load_test_vectors
+from Crypto.SelfTest.st_common import list_test_cases
+from Crypto.Util.py3compat import tobytes, is_string
+from Crypto.Cipher import AES, DES3, DES
+from Crypto.Hash import SHAKE128
+
+
+def get_tag_random(tag, length):
+    return SHAKE128.new(data=tobytes(tag)).read(length)
+
+class BlockChainingTests(unittest.TestCase):
+
+    key_128 = get_tag_random("key_128", 16)
+    key_192 = get_tag_random("key_192", 24)
+    iv_128 = get_tag_random("iv_128", 16)
+    iv_64 = get_tag_random("iv_64", 8)
+    data_128 = get_tag_random("data_128", 16)
+
+    def test_loopback_128(self):
+        cipher = AES.new(self.key_128, self.aes_mode, self.iv_128)
+        pt = get_tag_random("plaintext", 16 * 100)
+        ct = cipher.encrypt(pt)
+
+        cipher = AES.new(self.key_128, self.aes_mode, self.iv_128)
+        pt2 = cipher.decrypt(ct)
+        self.assertEqual(pt, pt2)
+
+    def test_loopback_64(self):
+        cipher = DES3.new(self.key_192, self.des3_mode, self.iv_64)
+        pt = get_tag_random("plaintext", 8 * 100)
+        ct = cipher.encrypt(pt)
+
+        cipher = DES3.new(self.key_192, self.des3_mode, self.iv_64)
+        pt2 = cipher.decrypt(ct)
+        self.assertEqual(pt, pt2)
+
+    def test_iv(self):
+        # If not passed, the iv is created randomly
+        cipher = AES.new(self.key_128, self.aes_mode)
+        iv1 = cipher.iv
+        cipher = AES.new(self.key_128, self.aes_mode)
+        iv2 = cipher.iv
+        self.assertNotEqual(iv1, iv2)
+        self.assertEqual(len(iv1), 16)
+
+        # IV can be passed in uppercase or lowercase
+        cipher = AES.new(self.key_128, self.aes_mode, self.iv_128)
+        ct = cipher.encrypt(self.data_128)
+
+        cipher = AES.new(self.key_128, self.aes_mode, iv=self.iv_128)
+        self.assertEqual(ct, cipher.encrypt(self.data_128))
+
+        cipher = AES.new(self.key_128, self.aes_mode, IV=self.iv_128)
+        self.assertEqual(ct, cipher.encrypt(self.data_128))
+
+    def test_iv_must_be_bytes(self):
+        self.assertRaises(TypeError, AES.new, self.key_128, self.aes_mode,
+                          iv = u'test1234567890-*')
+
+    def test_only_one_iv(self):
+        # Only one IV/iv keyword allowed
+        self.assertRaises(TypeError, AES.new, self.key_128, self.aes_mode,
+                          iv=self.iv_128, IV=self.iv_128)
+
+    def test_iv_with_matching_length(self):
+        self.assertRaises(ValueError, AES.new, self.key_128, self.aes_mode,
+                          b"")
+        self.assertRaises(ValueError, AES.new, self.key_128, self.aes_mode,
+                          self.iv_128[:15])
+        self.assertRaises(ValueError, AES.new, self.key_128, self.aes_mode,
+                          self.iv_128 + b"0")
+
+    def test_block_size_128(self):
+        cipher = AES.new(self.key_128, self.aes_mode, self.iv_128)
+        self.assertEqual(cipher.block_size, AES.block_size)
+
+    def test_block_size_64(self):
+        cipher = DES3.new(self.key_192, self.des3_mode, self.iv_64)
+        self.assertEqual(cipher.block_size, DES3.block_size)
+
+    def test_unaligned_data_128(self):
+        cipher = AES.new(self.key_128, self.aes_mode, self.iv_128)
+        for wrong_length in range(1,16):
+            self.assertRaises(ValueError, cipher.encrypt, b"5" * wrong_length)
+
+        cipher = AES.new(self.key_128, self.aes_mode, self.iv_128)
+        for wrong_length in range(1,16):
+            self.assertRaises(ValueError, cipher.decrypt, b"5" * wrong_length)
+
+    def test_unaligned_data_64(self):
+        cipher = DES3.new(self.key_192, self.des3_mode, self.iv_64)
+        for wrong_length in range(1,8):
+            self.assertRaises(ValueError, cipher.encrypt, b"5" * wrong_length)
+
+        cipher = DES3.new(self.key_192, self.des3_mode, self.iv_64)
+        for wrong_length in range(1,8):
+            self.assertRaises(ValueError, cipher.decrypt, b"5" * wrong_length)
+
+    def test_IV_iv_attributes(self):
+        data = get_tag_random("data", 16 * 100)
+        for func in "encrypt", "decrypt":
+            cipher = AES.new(self.key_128, self.aes_mode, self.iv_128)
+            getattr(cipher, func)(data)
+            self.assertEqual(cipher.iv, self.iv_128)
+            self.assertEqual(cipher.IV, self.iv_128)
+
+    def test_unknown_parameters(self):
+        self.assertRaises(TypeError, AES.new, self.key_128, self.aes_mode,
+                          self.iv_128, 7)
+        self.assertRaises(TypeError, AES.new, self.key_128, self.aes_mode,
+                          iv=self.iv_128, unknown=7)
+        # But some are only known by the base cipher (e.g. use_aesni consumed by the AES module)
+        AES.new(self.key_128, self.aes_mode, iv=self.iv_128, use_aesni=False)
+
+    def test_null_encryption_decryption(self):
+        for func in "encrypt", "decrypt":
+            cipher = AES.new(self.key_128, self.aes_mode, self.iv_128)
+            result = getattr(cipher, func)(b"")
+            self.assertEqual(result, b"")
+
+    def test_either_encrypt_or_decrypt(self):
+        cipher = AES.new(self.key_128, self.aes_mode, self.iv_128)
+        cipher.encrypt(b"")
+        self.assertRaises(TypeError, cipher.decrypt, b"")
+
+        cipher = AES.new(self.key_128, self.aes_mode, self.iv_128)
+        cipher.decrypt(b"")
+        self.assertRaises(TypeError, cipher.encrypt, b"")
+
+    def test_data_must_be_bytes(self):
+        cipher = AES.new(self.key_128, self.aes_mode, self.iv_128)
+        self.assertRaises(TypeError, cipher.encrypt, u'test1234567890-*')
+
+        cipher = AES.new(self.key_128, self.aes_mode, self.iv_128)
+        self.assertRaises(TypeError, cipher.decrypt, u'test1234567890-*')
+
+    def test_bytearray(self):
+        data = b"1" * 128
+        data_ba = bytearray(data)
+
+        # Encrypt
+        key_ba = bytearray(self.key_128)
+        iv_ba = bytearray(self.iv_128)
+
+        cipher1 = AES.new(self.key_128, self.aes_mode, self.iv_128)
+        ref1 = cipher1.encrypt(data)
+
+        cipher2 = AES.new(key_ba, self.aes_mode, iv_ba)
+        key_ba[:3] = b'\xFF\xFF\xFF'
+        iv_ba[:3] = b'\xFF\xFF\xFF'
+        ref2 = cipher2.encrypt(data_ba)
+
+        self.assertEqual(ref1, ref2)
+        self.assertEqual(cipher1.iv, cipher2.iv)
+
+        # Decrypt
+        key_ba = bytearray(self.key_128)
+        iv_ba = bytearray(self.iv_128)
+
+        cipher3 = AES.new(self.key_128, self.aes_mode, self.iv_128)
+        ref3 = cipher3.decrypt(data)
+
+        cipher4 = AES.new(key_ba, self.aes_mode, iv_ba)
+        key_ba[:3] = b'\xFF\xFF\xFF'
+        iv_ba[:3] = b'\xFF\xFF\xFF'
+        ref4 = cipher4.decrypt(data_ba)
+
+        self.assertEqual(ref3, ref4)
+
+    def test_memoryview(self):
+        data = b"1" * 128
+        data_mv = memoryview(bytearray(data))
+
+        # Encrypt
+        key_mv = memoryview(bytearray(self.key_128))
+        iv_mv = memoryview(bytearray(self.iv_128))
+
+        cipher1 = AES.new(self.key_128, self.aes_mode, self.iv_128)
+        ref1 = cipher1.encrypt(data)
+
+        cipher2 = AES.new(key_mv, self.aes_mode, iv_mv)
+        key_mv[:3] = b'\xFF\xFF\xFF'
+        iv_mv[:3] = b'\xFF\xFF\xFF'
+        ref2 = cipher2.encrypt(data_mv)
+
+        self.assertEqual(ref1, ref2)
+        self.assertEqual(cipher1.iv, cipher2.iv)
+
+        # Decrypt
+        key_mv = memoryview(bytearray(self.key_128))
+        iv_mv = memoryview(bytearray(self.iv_128))
+
+        cipher3 = AES.new(self.key_128, self.aes_mode, self.iv_128)
+        ref3 = cipher3.decrypt(data)
+
+        cipher4 = AES.new(key_mv, self.aes_mode, iv_mv)
+        key_mv[:3] = b'\xFF\xFF\xFF'
+        iv_mv[:3] = b'\xFF\xFF\xFF'
+        ref4 = cipher4.decrypt(data_mv)
+
+        self.assertEqual(ref3, ref4)
+
+    def test_output_param(self):
+
+        pt = b'5' * 128
+        cipher = AES.new(b'4'*16, self.aes_mode, iv=self.iv_128)
+        ct = cipher.encrypt(pt)
+
+        output = bytearray(128)
+        cipher = AES.new(b'4'*16, self.aes_mode, iv=self.iv_128)
+        res = cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+        self.assertEqual(res, None)
+
+        cipher = AES.new(b'4'*16, self.aes_mode, iv=self.iv_128)
+        res = cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+        self.assertEqual(res, None)
+
+
+    def test_output_param_same_buffer(self):
+
+        pt = b'5' * 128
+        cipher = AES.new(b'4'*16, self.aes_mode, iv=self.iv_128)
+        ct = cipher.encrypt(pt)
+
+        pt_ba = bytearray(pt)
+        cipher = AES.new(b'4'*16, self.aes_mode, iv=self.iv_128)
+        res = cipher.encrypt(pt_ba, output=pt_ba)
+        self.assertEqual(ct, pt_ba)
+        self.assertEqual(res, None)
+
+        ct_ba = bytearray(ct)
+        cipher = AES.new(b'4'*16, self.aes_mode, iv=self.iv_128)
+        res = cipher.decrypt(ct_ba, output=ct_ba)
+        self.assertEqual(pt, ct_ba)
+        self.assertEqual(res, None)
+
+
+    def test_output_param_memoryview(self):
+
+        pt = b'5' * 128
+        cipher = AES.new(b'4'*16, self.aes_mode, iv=self.iv_128)
+        ct = cipher.encrypt(pt)
+
+        output = memoryview(bytearray(128))
+        cipher = AES.new(b'4'*16, self.aes_mode, iv=self.iv_128)
+        cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+
+        cipher = AES.new(b'4'*16, self.aes_mode, iv=self.iv_128)
+        cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+
+    def test_output_param_neg(self):
+        LEN_PT = 128
+
+        pt = b'5' * LEN_PT
+        cipher = AES.new(b'4'*16, self.aes_mode, iv=self.iv_128)
+        ct = cipher.encrypt(pt)
+
+        cipher = AES.new(b'4'*16, self.aes_mode, iv=self.iv_128)
+        self.assertRaises(TypeError, cipher.encrypt, pt, output=b'0' * LEN_PT)
+
+        cipher = AES.new(b'4'*16, self.aes_mode, iv=self.iv_128)
+        self.assertRaises(TypeError, cipher.decrypt, ct, output=b'0' * LEN_PT)
+
+        shorter_output = bytearray(LEN_PT - 1)
+        cipher = AES.new(b'4'*16, self.aes_mode, iv=self.iv_128)
+        self.assertRaises(ValueError, cipher.encrypt, pt, output=shorter_output)
+        cipher = AES.new(b'4'*16, self.aes_mode, iv=self.iv_128)
+        self.assertRaises(ValueError, cipher.decrypt, ct, output=shorter_output)
+
+
+class CbcTests(BlockChainingTests):
+    aes_mode = AES.MODE_CBC
+    des3_mode = DES3.MODE_CBC
+
+
+class NistBlockChainingVectors(unittest.TestCase):
+
+    def _do_kat_aes_test(self, file_name):
+
+        test_vectors = load_test_vectors(("Cipher", "AES"),
+                            file_name,
+                            "AES CBC KAT",
+                            { "count" : lambda x: int(x) } )
+        if test_vectors is None:
+            return
+
+        direction = None
+        for tv in test_vectors:
+
+            # The test vector file contains some directive lines
+            if is_string(tv):
+                direction = tv
+                continue
+
+            self.description = tv.desc
+
+            cipher = AES.new(tv.key, self.aes_mode, tv.iv)
+            if direction == "[ENCRYPT]":
+                self.assertEqual(cipher.encrypt(tv.plaintext), tv.ciphertext)
+            elif direction == "[DECRYPT]":
+                self.assertEqual(cipher.decrypt(tv.ciphertext), tv.plaintext)
+            else:
+                assert False
+
+    # See Section 6.4.2 in AESAVS
+    def _do_mct_aes_test(self, file_name):
+
+        test_vectors = load_test_vectors(("Cipher", "AES"),
+                            file_name,
+                            "AES CBC Montecarlo",
+                            { "count" : lambda x: int(x) } )
+        if test_vectors is None:
+            return
+
+        direction = None
+        for tv in test_vectors:
+
+            # The test vector file contains some directive lines
+            if is_string(tv):
+                direction = tv
+                continue
+
+            self.description = tv.desc
+            cipher = AES.new(tv.key, self.aes_mode, tv.iv)
+
+            if direction == '[ENCRYPT]':
+                cts = [ tv.iv ]
+                for count in range(1000):
+                    cts.append(cipher.encrypt(tv.plaintext))
+                    tv.plaintext = cts[-2]
+                self.assertEqual(cts[-1], tv.ciphertext)
+            elif direction == '[DECRYPT]':
+                pts = [ tv.iv]
+                for count in range(1000):
+                    pts.append(cipher.decrypt(tv.ciphertext))
+                    tv.ciphertext = pts[-2]
+                self.assertEqual(pts[-1], tv.plaintext)
+            else:
+                assert False
+
+    def _do_tdes_test(self, file_name):
+
+        test_vectors = load_test_vectors(("Cipher", "TDES"),
+                            file_name,
+                            "TDES CBC KAT",
+                            { "count" : lambda x: int(x) } )
+        if test_vectors is None:
+            return
+
+        direction = None
+        for tv in test_vectors:
+
+            # The test vector file contains some directive lines
+            if is_string(tv):
+                direction = tv
+                continue
+
+            self.description = tv.desc
+            if hasattr(tv, "keys"):
+                cipher = DES.new(tv.keys, self.des_mode, tv.iv)
+            else:
+                if tv.key1 != tv.key3:
+                    key = tv.key1 + tv.key2 + tv.key3  # Option 3
+                else:
+                    key = tv.key1 + tv.key2            # Option 2
+                cipher = DES3.new(key, self.des3_mode, tv.iv)
+
+            if direction == "[ENCRYPT]":
+                self.assertEqual(cipher.encrypt(tv.plaintext), tv.ciphertext)
+            elif direction == "[DECRYPT]":
+                self.assertEqual(cipher.decrypt(tv.ciphertext), tv.plaintext)
+            else:
+                assert False
+
+
+class NistCbcVectors(NistBlockChainingVectors):
+    aes_mode = AES.MODE_CBC
+    des_mode = DES.MODE_CBC
+    des3_mode = DES3.MODE_CBC
+
+
+# Create one test method per file
+nist_aes_kat_mmt_files = (
+    # KAT
+    "CBCGFSbox128.rsp",
+    "CBCGFSbox192.rsp",
+    "CBCGFSbox256.rsp",
+    "CBCKeySbox128.rsp",
+    "CBCKeySbox192.rsp",
+    "CBCKeySbox256.rsp",
+    "CBCVarKey128.rsp",
+    "CBCVarKey192.rsp",
+    "CBCVarKey256.rsp",
+    "CBCVarTxt128.rsp",
+    "CBCVarTxt192.rsp",
+    "CBCVarTxt256.rsp",
+    # MMT
+    "CBCMMT128.rsp",
+    "CBCMMT192.rsp",
+    "CBCMMT256.rsp",
+    )
+nist_aes_mct_files = (
+    "CBCMCT128.rsp",
+    "CBCMCT192.rsp",
+    "CBCMCT256.rsp",
+    )
+
+for file_name in nist_aes_kat_mmt_files:
+    def new_func(self, file_name=file_name):
+        self._do_kat_aes_test(file_name)
+    setattr(NistCbcVectors, "test_AES_" + file_name, new_func)
+
+for file_name in nist_aes_mct_files:
+    def new_func(self, file_name=file_name):
+        self._do_mct_aes_test(file_name)
+    setattr(NistCbcVectors, "test_AES_" + file_name, new_func)
+del file_name, new_func
+
+nist_tdes_files = (
+    "TCBCMMT2.rsp",    # 2TDES
+    "TCBCMMT3.rsp",    # 3TDES
+    "TCBCinvperm.rsp", # Single DES
+    "TCBCpermop.rsp",
+    "TCBCsubtab.rsp",
+    "TCBCvarkey.rsp",
+    "TCBCvartext.rsp",
+    )
+
+for file_name in nist_tdes_files:
+    def new_func(self, file_name=file_name):
+        self._do_tdes_test(file_name)
+    setattr(NistCbcVectors, "test_TDES_" + file_name, new_func)
+
+# END OF NIST CBC TEST VECTORS
+
+
+class SP800TestVectors(unittest.TestCase):
+    """Class exercising the CBC test vectors found in Section F.2
+    of NIST SP 800-3A"""
+
+    def test_aes_128(self):
+        key =           '2b7e151628aed2a6abf7158809cf4f3c'
+        iv =            '000102030405060708090a0b0c0d0e0f'
+        plaintext =     '6bc1bee22e409f96e93d7e117393172a' +\
+                        'ae2d8a571e03ac9c9eb76fac45af8e51' +\
+                        '30c81c46a35ce411e5fbc1191a0a52ef' +\
+                        'f69f2445df4f9b17ad2b417be66c3710'
+        ciphertext =    '7649abac8119b246cee98e9b12e9197d' +\
+                        '5086cb9b507219ee95db113a917678b2' +\
+                        '73bed6b8e3c1743b7116e69e22229516' +\
+                        '3ff1caa1681fac09120eca307586e1a7'
+
+        key = unhexlify(key)
+        iv = unhexlify(iv)
+        plaintext = unhexlify(plaintext)
+        ciphertext = unhexlify(ciphertext)
+
+        cipher = AES.new(key, AES.MODE_CBC, iv)
+        self.assertEqual(cipher.encrypt(plaintext), ciphertext)
+        cipher = AES.new(key, AES.MODE_CBC, iv)
+        self.assertEqual(cipher.decrypt(ciphertext), plaintext)
+
+    def test_aes_192(self):
+        key =           '8e73b0f7da0e6452c810f32b809079e562f8ead2522c6b7b'
+        iv =            '000102030405060708090a0b0c0d0e0f'
+        plaintext =     '6bc1bee22e409f96e93d7e117393172a' +\
+                        'ae2d8a571e03ac9c9eb76fac45af8e51' +\
+                        '30c81c46a35ce411e5fbc1191a0a52ef' +\
+                        'f69f2445df4f9b17ad2b417be66c3710'
+        ciphertext =    '4f021db243bc633d7178183a9fa071e8' +\
+                        'b4d9ada9ad7dedf4e5e738763f69145a' +\
+                        '571b242012fb7ae07fa9baac3df102e0' +\
+                        '08b0e27988598881d920a9e64f5615cd'
+
+        key = unhexlify(key)
+        iv = unhexlify(iv)
+        plaintext = unhexlify(plaintext)
+        ciphertext = unhexlify(ciphertext)
+
+        cipher = AES.new(key, AES.MODE_CBC, iv)
+        self.assertEqual(cipher.encrypt(plaintext), ciphertext)
+        cipher = AES.new(key, AES.MODE_CBC, iv)
+        self.assertEqual(cipher.decrypt(ciphertext), plaintext)
+
+    def test_aes_256(self):
+        key =           '603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4'
+        iv =            '000102030405060708090a0b0c0d0e0f'
+        plaintext =     '6bc1bee22e409f96e93d7e117393172a' +\
+                        'ae2d8a571e03ac9c9eb76fac45af8e51' +\
+                        '30c81c46a35ce411e5fbc1191a0a52ef' +\
+                        'f69f2445df4f9b17ad2b417be66c3710'
+        ciphertext =    'f58c4c04d6e5f1ba779eabfb5f7bfbd6' +\
+                        '9cfc4e967edb808d679f777bc6702c7d' +\
+                        '39f23369a9d9bacfa530e26304231461' +\
+                        'b2eb05e2c39be9fcda6c19078c6a9d1b'
+
+        key = unhexlify(key)
+        iv = unhexlify(iv)
+        plaintext = unhexlify(plaintext)
+        ciphertext = unhexlify(ciphertext)
+
+        cipher = AES.new(key, AES.MODE_CBC, iv)
+        self.assertEqual(cipher.encrypt(plaintext), ciphertext)
+        cipher = AES.new(key, AES.MODE_CBC, iv)
+        self.assertEqual(cipher.decrypt(ciphertext), plaintext)
+
+
+def get_tests(config={}):
+    tests = []
+    tests += list_test_cases(CbcTests)
+    if config.get('slow_tests'):
+        tests += list_test_cases(NistCbcVectors)
+    tests += list_test_cases(SP800TestVectors)
+    return tests
+
+
+if __name__ == '__main__':
+    suite = lambda: unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_CCM.py

@@ -0,0 +1,936 @@
+# ===================================================================
+#
+# Copyright (c) 2015, Legrandin <helderijs@gmail.com>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+# ===================================================================
+
+import unittest
+from binascii import unhexlify
+
+from Crypto.SelfTest.st_common import list_test_cases
+from Crypto.SelfTest.loader import load_test_vectors_wycheproof
+from Crypto.Util.py3compat import tobytes, bchr
+from Crypto.Cipher import AES
+from Crypto.Hash import SHAKE128
+
+from Crypto.Util.strxor import strxor
+
+
+def get_tag_random(tag, length):
+    return SHAKE128.new(data=tobytes(tag)).read(length)
+
+
+class CcmTests(unittest.TestCase):
+
+    key_128 = get_tag_random("key_128", 16)
+    nonce_96 = get_tag_random("nonce_128", 12)
+    data = get_tag_random("data", 128)
+
+    def test_loopback_128(self):
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        pt = get_tag_random("plaintext", 16 * 100)
+        ct = cipher.encrypt(pt)
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        pt2 = cipher.decrypt(ct)
+        self.assertEqual(pt, pt2)
+
+    def test_nonce(self):
+        # If not passed, the nonce is created randomly
+        cipher = AES.new(self.key_128, AES.MODE_CCM)
+        nonce1 = cipher.nonce
+        cipher = AES.new(self.key_128, AES.MODE_CCM)
+        nonce2 = cipher.nonce
+        self.assertEqual(len(nonce1), 11)
+        self.assertNotEqual(nonce1, nonce2)
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, self.nonce_96)
+        ct = cipher.encrypt(self.data)
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        self.assertEqual(ct, cipher.encrypt(self.data))
+
+    def test_nonce_must_be_bytes(self):
+        self.assertRaises(TypeError, AES.new, self.key_128, AES.MODE_CCM,
+                          nonce=u'test12345678')
+
+    def test_nonce_length(self):
+        self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_CCM,
+                          nonce=b"")
+        self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_CCM,
+                          nonce=bchr(1) * 6)
+        self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_CCM,
+                          nonce=bchr(1) * 14)
+        for x in range(7, 13 + 1):
+            AES.new(self.key_128, AES.MODE_CCM, nonce=bchr(1) * x)
+
+    def test_block_size(self):
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        self.assertEqual(cipher.block_size, AES.block_size)
+
+    def test_nonce_attribute(self):
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        self.assertEqual(cipher.nonce, self.nonce_96)
+
+        # By default, a 11 bytes long nonce is randomly generated
+        nonce1 = AES.new(self.key_128, AES.MODE_CCM).nonce
+        nonce2 = AES.new(self.key_128, AES.MODE_CCM).nonce
+        self.assertEqual(len(nonce1), 11)
+        self.assertNotEqual(nonce1, nonce2)
+
+    def test_unknown_parameters(self):
+        self.assertRaises(TypeError, AES.new, self.key_128, AES.MODE_CCM,
+                          self.nonce_96, 7)
+        self.assertRaises(TypeError, AES.new, self.key_128, AES.MODE_CCM,
+                          nonce=self.nonce_96, unknown=7)
+
+        # But some are only known by the base cipher
+        # (e.g. use_aesni consumed by the AES module)
+        AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96,
+                use_aesni=False)
+
+    def test_null_encryption_decryption(self):
+        for func in "encrypt", "decrypt":
+            cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+            result = getattr(cipher, func)(b"")
+            self.assertEqual(result, b"")
+
+    def test_either_encrypt_or_decrypt(self):
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        cipher.encrypt(b"")
+        self.assertRaises(TypeError, cipher.decrypt, b"")
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        cipher.decrypt(b"")
+        self.assertRaises(TypeError, cipher.encrypt, b"")
+
+    def test_data_must_be_bytes(self):
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.encrypt, u'test1234567890-*')
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.decrypt, u'test1234567890-*')
+
+    def test_mac_len(self):
+        # Invalid MAC length
+        for mac_len in range(3, 17 + 1, 2):
+            self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_CCM,
+                              nonce=self.nonce_96, mac_len=mac_len)
+
+        # Valid MAC length
+        for mac_len in range(4, 16 + 1, 2):
+            cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96,
+                             mac_len=mac_len)
+            _, mac = cipher.encrypt_and_digest(self.data)
+            self.assertEqual(len(mac), mac_len)
+
+        # Default MAC length
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        _, mac = cipher.encrypt_and_digest(self.data)
+        self.assertEqual(len(mac), 16)
+
+    def test_invalid_mac(self):
+        from Crypto.Util.strxor import strxor_c
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        ct, mac = cipher.encrypt_and_digest(self.data)
+
+        invalid_mac = strxor_c(mac, 0x01)
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        self.assertRaises(ValueError, cipher.decrypt_and_verify, ct,
+                          invalid_mac)
+
+    def test_hex_mac(self):
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        mac_hex = cipher.hexdigest()
+        self.assertEqual(cipher.digest(), unhexlify(mac_hex))
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        cipher.hexverify(mac_hex)
+
+    def test_longer_assoc_data_than_declared(self):
+        # More than zero
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96,
+                         assoc_len=0)
+        self.assertRaises(ValueError, cipher.update, b"1")
+
+        # Too large
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96,
+                         assoc_len=15)
+        self.assertRaises(ValueError, cipher.update, self.data)
+
+    def test_shorter_assoc_data_than_expected(self):
+        DATA_LEN = len(self.data)
+
+        # With plaintext
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96,
+                         assoc_len=DATA_LEN + 1)
+        cipher.update(self.data)
+        self.assertRaises(ValueError, cipher.encrypt, self.data)
+
+        # With empty plaintext
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96,
+                         assoc_len=DATA_LEN + 1)
+        cipher.update(self.data)
+        self.assertRaises(ValueError, cipher.digest)
+
+        # With ciphertext
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96,
+                         assoc_len=DATA_LEN + 1)
+        cipher.update(self.data)
+        self.assertRaises(ValueError, cipher.decrypt, self.data)
+
+        # With empty ciphertext
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        cipher.update(self.data)
+        mac = cipher.digest()
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96,
+                         assoc_len=DATA_LEN + 1)
+        cipher.update(self.data)
+        self.assertRaises(ValueError, cipher.verify, mac)
+
+    def test_shorter_and_longer_plaintext_than_declared(self):
+        DATA_LEN = len(self.data)
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96,
+                         msg_len=DATA_LEN + 1)
+        cipher.encrypt(self.data)
+        self.assertRaises(ValueError, cipher.digest)
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96,
+                         msg_len=DATA_LEN - 1)
+        self.assertRaises(ValueError, cipher.encrypt, self.data)
+
+    def test_shorter_ciphertext_than_declared(self):
+        DATA_LEN = len(self.data)
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        ct, mac = cipher.encrypt_and_digest(self.data)
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96,
+                         msg_len=DATA_LEN + 1)
+        cipher.decrypt(ct)
+        self.assertRaises(ValueError, cipher.verify, mac)
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96,
+                         msg_len=DATA_LEN - 1)
+        self.assertRaises(ValueError, cipher.decrypt, ct)
+
+    def test_message_chunks(self):
+        # Validate that both associated data and plaintext/ciphertext
+        # can be broken up in chunks of arbitrary length
+
+        auth_data = get_tag_random("authenticated data", 127)
+        plaintext = get_tag_random("plaintext", 127)
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        cipher.update(auth_data)
+        ciphertext, ref_mac = cipher.encrypt_and_digest(plaintext)
+
+        def break_up(data, chunk_length):
+            return [data[i:i+chunk_length] for i in range(0, len(data),
+                    chunk_length)]
+
+        # Encryption
+        for chunk_length in 1, 2, 3, 7, 10, 13, 16, 40, 80, 128:
+
+            cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96,
+                             msg_len=127, assoc_len=127)
+
+            for chunk in break_up(auth_data, chunk_length):
+                cipher.update(chunk)
+            pt2 = b""
+            for chunk in break_up(ciphertext, chunk_length):
+                pt2 += cipher.decrypt(chunk)
+            self.assertEqual(plaintext, pt2)
+            cipher.verify(ref_mac)
+
+        # Decryption
+        for chunk_length in 1, 2, 3, 7, 10, 13, 16, 40, 80, 128:
+
+            cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96,
+                             msg_len=127, assoc_len=127)
+
+            for chunk in break_up(auth_data, chunk_length):
+                cipher.update(chunk)
+            ct2 = b""
+            for chunk in break_up(plaintext, chunk_length):
+                ct2 += cipher.encrypt(chunk)
+            self.assertEqual(ciphertext, ct2)
+            self.assertEqual(cipher.digest(), ref_mac)
+
+    def test_bytearray(self):
+
+        # Encrypt
+        key_ba = bytearray(self.key_128)
+        nonce_ba = bytearray(self.nonce_96)
+        header_ba = bytearray(self.data)
+        data_ba = bytearray(self.data)
+
+        cipher1 = AES.new(self.key_128,
+                          AES.MODE_CCM,
+                          nonce=self.nonce_96)
+        cipher1.update(self.data)
+        ct = cipher1.encrypt(self.data)
+        tag = cipher1.digest()
+
+        cipher2 = AES.new(key_ba,
+                          AES.MODE_CCM,
+                          nonce=nonce_ba)
+        key_ba[:3] = b"\xFF\xFF\xFF"
+        nonce_ba[:3] = b"\xFF\xFF\xFF"
+        cipher2.update(header_ba)
+        header_ba[:3] = b"\xFF\xFF\xFF"
+        ct_test = cipher2.encrypt(data_ba)
+        data_ba[:3] = b"\xFF\xFF\xFF"
+        tag_test = cipher2.digest()
+
+        self.assertEqual(ct, ct_test)
+        self.assertEqual(tag, tag_test)
+        self.assertEqual(cipher1.nonce, cipher2.nonce)
+
+        # Decrypt
+        key_ba = bytearray(self.key_128)
+        nonce_ba = bytearray(self.nonce_96)
+        header_ba = bytearray(self.data)
+        del data_ba
+
+        cipher4 = AES.new(key_ba,
+                          AES.MODE_CCM,
+                          nonce=nonce_ba)
+        key_ba[:3] = b"\xFF\xFF\xFF"
+        nonce_ba[:3] = b"\xFF\xFF\xFF"
+        cipher4.update(header_ba)
+        header_ba[:3] = b"\xFF\xFF\xFF"
+        pt_test = cipher4.decrypt_and_verify(bytearray(ct_test), bytearray(tag_test))
+
+        self.assertEqual(self.data, pt_test)
+
+    def test_memoryview(self):
+
+        # Encrypt
+        key_mv = memoryview(bytearray(self.key_128))
+        nonce_mv = memoryview(bytearray(self.nonce_96))
+        header_mv = memoryview(bytearray(self.data))
+        data_mv = memoryview(bytearray(self.data))
+
+        cipher1 = AES.new(self.key_128,
+                          AES.MODE_CCM,
+                          nonce=self.nonce_96)
+        cipher1.update(self.data)
+        ct = cipher1.encrypt(self.data)
+        tag = cipher1.digest()
+
+        cipher2 = AES.new(key_mv,
+                          AES.MODE_CCM,
+                          nonce=nonce_mv)
+        key_mv[:3] = b"\xFF\xFF\xFF"
+        nonce_mv[:3] = b"\xFF\xFF\xFF"
+        cipher2.update(header_mv)
+        header_mv[:3] = b"\xFF\xFF\xFF"
+        ct_test = cipher2.encrypt(data_mv)
+        data_mv[:3] = b"\xFF\xFF\xFF"
+        tag_test = cipher2.digest()
+
+        self.assertEqual(ct, ct_test)
+        self.assertEqual(tag, tag_test)
+        self.assertEqual(cipher1.nonce, cipher2.nonce)
+
+        # Decrypt
+        key_mv = memoryview(bytearray(self.key_128))
+        nonce_mv = memoryview(bytearray(self.nonce_96))
+        header_mv = memoryview(bytearray(self.data))
+        del data_mv
+
+        cipher4 = AES.new(key_mv,
+                          AES.MODE_CCM,
+                          nonce=nonce_mv)
+        key_mv[:3] = b"\xFF\xFF\xFF"
+        nonce_mv[:3] = b"\xFF\xFF\xFF"
+        cipher4.update(header_mv)
+        header_mv[:3] = b"\xFF\xFF\xFF"
+        pt_test = cipher4.decrypt_and_verify(memoryview(ct_test), memoryview(tag_test))
+
+        self.assertEqual(self.data, pt_test)
+
+    def test_output_param(self):
+
+        pt = b'5' * 128
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        ct = cipher.encrypt(pt)
+        tag = cipher.digest()
+
+        output = bytearray(128)
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        res = cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+        self.assertEqual(res, None)
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        res = cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+        self.assertEqual(res, None)
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        res, tag_out = cipher.encrypt_and_digest(pt, output=output)
+        self.assertEqual(ct, output)
+        self.assertEqual(res, None)
+        self.assertEqual(tag, tag_out)
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        res = cipher.decrypt_and_verify(ct, tag, output=output)
+        self.assertEqual(pt, output)
+        self.assertEqual(res, None)
+
+    def test_output_param_memoryview(self):
+
+        pt = b'5' * 128
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        ct = cipher.encrypt(pt)
+
+        output = memoryview(bytearray(128))
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+
+    def test_output_param_neg(self):
+
+        pt = b'5' * 16
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        ct = cipher.encrypt(pt)
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.encrypt, pt, output=b'0'*16)
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.decrypt, ct, output=b'0'*16)
+
+        shorter_output = bytearray(15)
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        self.assertRaises(ValueError, cipher.encrypt, pt, output=shorter_output)
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        self.assertRaises(ValueError, cipher.decrypt, ct, output=shorter_output)
+
+
+class CcmFSMTests(unittest.TestCase):
+
+    key_128 = get_tag_random("key_128", 16)
+    nonce_96 = get_tag_random("nonce_128", 12)
+    data = get_tag_random("data", 16)
+
+    def test_valid_init_encrypt_decrypt_digest_verify(self):
+        # No authenticated data, fixed plaintext
+        for assoc_len in (None, 0):
+            for msg_len in (None, len(self.data)):
+                # Verify path INIT->ENCRYPT->DIGEST
+                cipher = AES.new(self.key_128, AES.MODE_CCM,
+                                 nonce=self.nonce_96,
+                                 assoc_len=assoc_len,
+                                 msg_len=msg_len)
+                ct = cipher.encrypt(self.data)
+                mac = cipher.digest()
+
+                # Verify path INIT->DECRYPT->VERIFY
+                cipher = AES.new(self.key_128, AES.MODE_CCM,
+                                 nonce=self.nonce_96,
+                                 assoc_len=assoc_len,
+                                 msg_len=msg_len)
+                cipher.decrypt(ct)
+                cipher.verify(mac)
+
+    def test_valid_init_update_digest_verify(self):
+        # No plaintext, fixed authenticated data
+        for assoc_len in (None, len(self.data)):
+            for msg_len in (None, 0):
+                # Verify path INIT->UPDATE->DIGEST
+                cipher = AES.new(self.key_128, AES.MODE_CCM,
+                                 nonce=self.nonce_96,
+                                 assoc_len=assoc_len,
+                                 msg_len=msg_len)
+                cipher.update(self.data)
+                mac = cipher.digest()
+
+                # Verify path INIT->UPDATE->VERIFY
+                cipher = AES.new(self.key_128, AES.MODE_CCM,
+                                 nonce=self.nonce_96,
+                                 assoc_len=assoc_len,
+                                 msg_len=msg_len)
+                cipher.update(self.data)
+                cipher.verify(mac)
+
+    def test_valid_full_path(self):
+        # Fixed authenticated data, fixed plaintext
+        for assoc_len in (None, len(self.data)):
+            for msg_len in (None, len(self.data)):
+                # Verify path INIT->UPDATE->ENCRYPT->DIGEST
+                cipher = AES.new(self.key_128, AES.MODE_CCM,
+                                 nonce=self.nonce_96,
+                                 assoc_len=assoc_len,
+                                 msg_len=msg_len)
+                cipher.update(self.data)
+                ct = cipher.encrypt(self.data)
+                mac = cipher.digest()
+
+                # Verify path INIT->UPDATE->DECRYPT->VERIFY
+                cipher = AES.new(self.key_128, AES.MODE_CCM,
+                                 nonce=self.nonce_96,
+                                 assoc_len=assoc_len,
+                                 msg_len=msg_len)
+                cipher.update(self.data)
+                cipher.decrypt(ct)
+                cipher.verify(mac)
+
+    def test_valid_init_digest(self):
+        # Verify path INIT->DIGEST
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        cipher.digest()
+
+    def test_valid_init_verify(self):
+        # Verify path INIT->VERIFY
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        mac = cipher.digest()
+
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        cipher.verify(mac)
+
+    def test_valid_multiple_encrypt_or_decrypt(self):
+        # Only possible if msg_len is declared in advance
+        for method_name in "encrypt", "decrypt":
+            for auth_data in (None, b"333", self.data,
+                              self.data + b"3"):
+                if auth_data is None:
+                    assoc_len = None
+                else:
+                    assoc_len = len(auth_data)
+                cipher = AES.new(self.key_128, AES.MODE_CCM,
+                                 nonce=self.nonce_96,
+                                 msg_len=64,
+                                 assoc_len=assoc_len)
+                if auth_data is not None:
+                    cipher.update(auth_data)
+                method = getattr(cipher, method_name)
+                method(self.data)
+                method(self.data)
+                method(self.data)
+                method(self.data)
+
+    def test_valid_multiple_digest_or_verify(self):
+        # Multiple calls to digest
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        cipher.update(self.data)
+        first_mac = cipher.digest()
+        for x in range(4):
+            self.assertEqual(first_mac, cipher.digest())
+
+        # Multiple calls to verify
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        cipher.update(self.data)
+        for x in range(5):
+            cipher.verify(first_mac)
+
+    def test_valid_encrypt_and_digest_decrypt_and_verify(self):
+        # encrypt_and_digest
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        cipher.update(self.data)
+        ct, mac = cipher.encrypt_and_digest(self.data)
+
+        # decrypt_and_verify
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        cipher.update(self.data)
+        pt = cipher.decrypt_and_verify(ct, mac)
+        self.assertEqual(self.data, pt)
+
+    def test_invalid_multiple_encrypt_decrypt_without_msg_len(self):
+        # Once per method, with or without assoc. data
+        for method_name in "encrypt", "decrypt":
+            for assoc_data_present in (True, False):
+                cipher = AES.new(self.key_128, AES.MODE_CCM,
+                                 nonce=self.nonce_96)
+                if assoc_data_present:
+                    cipher.update(self.data)
+                method = getattr(cipher, method_name)
+                method(self.data)
+                self.assertRaises(TypeError, method, self.data)
+
+    def test_invalid_mixing_encrypt_decrypt(self):
+        # Once per method, with or without assoc. data
+        for method1_name, method2_name in (("encrypt", "decrypt"),
+                                           ("decrypt", "encrypt")):
+            for assoc_data_present in (True, False):
+                cipher = AES.new(self.key_128, AES.MODE_CCM,
+                                 nonce=self.nonce_96,
+                                 msg_len=32)
+                if assoc_data_present:
+                    cipher.update(self.data)
+                getattr(cipher, method1_name)(self.data)
+                self.assertRaises(TypeError, getattr(cipher, method2_name),
+                                  self.data)
+
+    def test_invalid_encrypt_or_update_after_digest(self):
+        for method_name in "encrypt", "update":
+            cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+            cipher.encrypt(self.data)
+            cipher.digest()
+            self.assertRaises(TypeError, getattr(cipher, method_name),
+                              self.data)
+
+            cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+            cipher.encrypt_and_digest(self.data)
+
+    def test_invalid_decrypt_or_update_after_verify(self):
+        cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+        ct = cipher.encrypt(self.data)
+        mac = cipher.digest()
+
+        for method_name in "decrypt", "update":
+            cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+            cipher.decrypt(ct)
+            cipher.verify(mac)
+            self.assertRaises(TypeError, getattr(cipher, method_name),
+                              self.data)
+
+            cipher = AES.new(self.key_128, AES.MODE_CCM, nonce=self.nonce_96)
+            cipher.decrypt_and_verify(ct, mac)
+            self.assertRaises(TypeError, getattr(cipher, method_name),
+                              self.data)
+
+
+class TestVectors(unittest.TestCase):
+    """Class exercising the CCM test vectors found in Appendix C
+    of NIST SP 800-38C and in RFC 3610"""
+
+    # List of test vectors, each made up of:
+    # - authenticated data
+    # - plaintext
+    # - ciphertext
+    # - MAC
+    # - AES key
+    # - nonce
+    test_vectors_hex = [
+        # NIST SP 800 38C
+        ( '0001020304050607',
+          '20212223',
+          '7162015b',
+          '4dac255d',
+          '404142434445464748494a4b4c4d4e4f',
+          '10111213141516'),
+        ( '000102030405060708090a0b0c0d0e0f',
+          '202122232425262728292a2b2c2d2e2f',
+          'd2a1f0e051ea5f62081a7792073d593d',
+          '1fc64fbfaccd',
+          '404142434445464748494a4b4c4d4e4f',
+          '1011121314151617'),
+        ( '000102030405060708090a0b0c0d0e0f10111213',
+          '202122232425262728292a2b2c2d2e2f3031323334353637',
+          'e3b201a9f5b71a7a9b1ceaeccd97e70b6176aad9a4428aa5',
+          '484392fbc1b09951',
+          '404142434445464748494a4b4c4d4e4f',
+          '101112131415161718191a1b'),
+        ( (''.join(["%02X" % (x*16+y) for x in range(0,16) for y in range(0,16)]))*256,
+          '202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f',
+          '69915dad1e84c6376a68c2967e4dab615ae0fd1faec44cc484828529463ccf72',
+          'b4ac6bec93e8598e7f0dadbcea5b',
+          '404142434445464748494a4b4c4d4e4f',
+          '101112131415161718191a1b1c'),
+        # RFC3610
+        ( '0001020304050607',
+          '08090a0b0c0d0e0f101112131415161718191a1b1c1d1e',
+          '588c979a61c663d2f066d0c2c0f989806d5f6b61dac384',
+          '17e8d12cfdf926e0',
+          'c0c1c2c3c4c5c6c7c8c9cacbcccdcecf',
+          '00000003020100a0a1a2a3a4a5'),
+        (
+          '0001020304050607',
+          '08090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f',
+          '72c91a36e135f8cf291ca894085c87e3cc15c439c9e43a3b',
+          'a091d56e10400916',
+          'c0c1c2c3c4c5c6c7c8c9cacbcccdcecf',
+          '00000004030201a0a1a2a3a4a5'),
+        ( '0001020304050607',
+          '08090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20',
+          '51b1e5f44a197d1da46b0f8e2d282ae871e838bb64da859657',
+          '4adaa76fbd9fb0c5',
+          'c0c1c2c3c4c5c6c7c8c9cacbcccdcecf',
+          '00000005040302A0A1A2A3A4A5'),
+        ( '000102030405060708090a0b',
+          '0c0d0e0f101112131415161718191a1b1c1d1e',
+          'a28c6865939a9a79faaa5c4c2a9d4a91cdac8c',
+          '96c861b9c9e61ef1',
+          'c0c1c2c3c4c5c6c7c8c9cacbcccdcecf',
+          '00000006050403a0a1a2a3a4a5'),
+        ( '000102030405060708090a0b',
+          '0c0d0e0f101112131415161718191a1b1c1d1e1f',
+          'dcf1fb7b5d9e23fb9d4e131253658ad86ebdca3e',
+          '51e83f077d9c2d93',
+          'c0c1c2c3c4c5c6c7c8c9cacbcccdcecf',
+          '00000007060504a0a1a2a3a4a5'),
+        ( '000102030405060708090a0b',
+          '0c0d0e0f101112131415161718191a1b1c1d1e1f20',
+          '6fc1b011f006568b5171a42d953d469b2570a4bd87',
+          '405a0443ac91cb94',
+          'c0c1c2c3c4c5c6c7c8c9cacbcccdcecf',
+          '00000008070605a0a1a2a3a4a5'),
+        ( '0001020304050607',
+          '08090a0b0c0d0e0f101112131415161718191a1b1c1d1e',
+          '0135d1b2c95f41d5d1d4fec185d166b8094e999dfed96c',
+          '048c56602c97acbb7490',
+          'c0c1c2c3c4c5c6c7c8c9cacbcccdcecf',
+          '00000009080706a0a1a2a3a4a5'),
+        ( '0001020304050607',
+          '08090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f',
+          '7b75399ac0831dd2f0bbd75879a2fd8f6cae6b6cd9b7db24',
+          'c17b4433f434963f34b4',
+          'c0c1c2c3c4c5c6c7c8c9cacbcccdcecf',
+          '0000000a090807a0a1a2a3a4a5'),
+        ( '0001020304050607',
+          '08090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20',
+          '82531a60cc24945a4b8279181ab5c84df21ce7f9b73f42e197',
+          'ea9c07e56b5eb17e5f4e',
+          'c0c1c2c3c4c5c6c7c8c9cacbcccdcecf',
+          '0000000b0a0908a0a1a2a3a4a5'),
+        ( '000102030405060708090a0b',
+          '0c0d0e0f101112131415161718191a1b1c1d1e',
+          '07342594157785152b074098330abb141b947b',
+          '566aa9406b4d999988dd',
+          'c0c1c2c3c4c5c6c7c8c9cacbcccdcecf',
+          '0000000c0b0a09a0a1a2a3a4a5'),
+        ( '000102030405060708090a0b',
+          '0c0d0e0f101112131415161718191a1b1c1d1e1f',
+          '676bb20380b0e301e8ab79590a396da78b834934',
+          'f53aa2e9107a8b6c022c',
+          'c0c1c2c3c4c5c6c7c8c9cacbcccdcecf',
+          '0000000d0c0b0aa0a1a2a3a4a5'),
+        ( '000102030405060708090a0b',
+          '0c0d0e0f101112131415161718191a1b1c1d1e1f20',
+          'c0ffa0d6f05bdb67f24d43a4338d2aa4bed7b20e43',
+          'cd1aa31662e7ad65d6db',
+          'c0c1c2c3c4c5c6c7c8c9cacbcccdcecf',
+          '0000000e0d0c0ba0a1a2a3a4a5'),
+        ( '0be1a88bace018b1',
+          '08e8cf97d820ea258460e96ad9cf5289054d895ceac47c',
+          '4cb97f86a2a4689a877947ab8091ef5386a6ffbdd080f8',
+          'e78cf7cb0cddd7b3',
+          'd7828d13b2b0bdc325a76236df93cc6b',
+          '00412b4ea9cdbe3c9696766cfa'),
+        ( '63018f76dc8a1bcb',
+          '9020ea6f91bdd85afa0039ba4baff9bfb79c7028949cd0ec',
+          '4ccb1e7ca981befaa0726c55d378061298c85c92814abc33',
+          'c52ee81d7d77c08a',
+          'd7828d13b2b0bdc325a76236df93cc6b',
+          '0033568ef7b2633c9696766cfa'),
+        ( 'aa6cfa36cae86b40',
+          'b916e0eacc1c00d7dcec68ec0b3bbb1a02de8a2d1aa346132e',
+          'b1d23a2220ddc0ac900d9aa03c61fcf4a559a4417767089708',
+          'a776796edb723506',
+          'd7828d13b2b0bdc325a76236df93cc6b',
+          '00103fe41336713c9696766cfa'),
+        ( 'd0d0735c531e1becf049c244',
+          '12daac5630efa5396f770ce1a66b21f7b2101c',
+          '14d253c3967b70609b7cbb7c49916028324526',
+          '9a6f49975bcadeaf',
+          'd7828d13b2b0bdc325a76236df93cc6b',
+          '00764c63b8058e3c9696766cfa'),
+        ( '77b60f011c03e1525899bcae',
+          'e88b6a46c78d63e52eb8c546efb5de6f75e9cc0d',
+          '5545ff1a085ee2efbf52b2e04bee1e2336c73e3f',
+          '762c0c7744fe7e3c',
+          'd7828d13b2b0bdc325a76236df93cc6b',
+          '00f8b678094e3b3c9696766cfa'),
+        ( 'cd9044d2b71fdb8120ea60c0',
+          '6435acbafb11a82e2f071d7ca4a5ebd93a803ba87f',
+          '009769ecabdf48625594c59251e6035722675e04c8',
+          '47099e5ae0704551',
+          'd7828d13b2b0bdc325a76236df93cc6b',
+          '00d560912d3f703c9696766cfa'),
+        ( 'd85bc7e69f944fb8',
+          '8a19b950bcf71a018e5e6701c91787659809d67dbedd18',
+          'bc218daa947427b6db386a99ac1aef23ade0b52939cb6a',
+          '637cf9bec2408897c6ba',
+          'd7828d13b2b0bdc325a76236df93cc6b',
+          '0042fff8f1951c3c9696766cfa'),
+        ( '74a0ebc9069f5b37',
+          '1761433c37c5a35fc1f39f406302eb907c6163be38c98437',
+          '5810e6fd25874022e80361a478e3e9cf484ab04f447efff6',
+          'f0a477cc2fc9bf548944',
+          'd7828d13b2b0bdc325a76236df93cc6b',
+          '00920f40e56cdc3c9696766cfa'),
+        ( '44a3aa3aae6475ca',
+          'a434a8e58500c6e41530538862d686ea9e81301b5ae4226bfa',
+          'f2beed7bc5098e83feb5b31608f8e29c38819a89c8e776f154',
+          '4d4151a4ed3a8b87b9ce',
+          'd7828d13b2b0bdc325a76236df93cc6b',
+          '0027ca0c7120bc3c9696766cfa'),
+        ( 'ec46bb63b02520c33c49fd70',
+          'b96b49e21d621741632875db7f6c9243d2d7c2',
+          '31d750a09da3ed7fddd49a2032aabf17ec8ebf',
+          '7d22c8088c666be5c197',
+          'd7828d13b2b0bdc325a76236df93cc6b',
+          '005b8ccbcd9af83c9696766cfa'),
+        ( '47a65ac78b3d594227e85e71',
+          'e2fcfbb880442c731bf95167c8ffd7895e337076',
+          'e882f1dbd38ce3eda7c23f04dd65071eb41342ac',
+          'df7e00dccec7ae52987d',
+          'd7828d13b2b0bdc325a76236df93cc6b',
+          '003ebe94044b9a3c9696766cfa'),
+        ( '6e37a6ef546d955d34ab6059',
+          'abf21c0b02feb88f856df4a37381bce3cc128517d4',
+          'f32905b88a641b04b9c9ffb58cc390900f3da12ab1',
+          '6dce9e82efa16da62059',
+          'd7828d13b2b0bdc325a76236df93cc6b',
+          '008d493b30ae8b3c9696766cfa'),
+    ]
+
+    test_vectors = [[unhexlify(x) for x in tv] for tv in test_vectors_hex]
+
+    def runTest(self):
+        for assoc_data, pt, ct, mac, key, nonce in self.test_vectors:
+            # Encrypt
+            cipher = AES.new(key, AES.MODE_CCM, nonce, mac_len=len(mac))
+            cipher.update(assoc_data)
+            ct2, mac2 = cipher.encrypt_and_digest(pt)
+            self.assertEqual(ct, ct2)
+            self.assertEqual(mac, mac2)
+
+            # Decrypt
+            cipher = AES.new(key, AES.MODE_CCM, nonce, mac_len=len(mac))
+            cipher.update(assoc_data)
+            pt2 = cipher.decrypt_and_verify(ct, mac)
+            self.assertEqual(pt, pt2)
+
+
+class TestVectorsWycheproof(unittest.TestCase):
+
+    def __init__(self, wycheproof_warnings, **extra_params):
+        unittest.TestCase.__init__(self)
+        self._wycheproof_warnings = wycheproof_warnings
+        self._extra_params = extra_params
+        self._id = "None"
+
+    def setUp(self):
+
+        def filter_tag(group):
+            return group['tagSize'] // 8
+
+        self.tv = load_test_vectors_wycheproof(("Cipher", "wycheproof"),
+                                               "aes_ccm_test.json",
+                                               "Wycheproof AES CCM",
+                                               group_tag={'tag_size': filter_tag})
+
+    def shortDescription(self):
+        return self._id
+
+    def warn(self, tv):
+        if tv.warning and self._wycheproof_warnings:
+            import warnings
+            warnings.warn("Wycheproof warning: %s (%s)" % (self._id, tv.comment))
+
+    def test_encrypt(self, tv):
+        self._id = "Wycheproof Encrypt CCM Test #" + str(tv.id)
+
+        try:
+            cipher = AES.new(tv.key, AES.MODE_CCM, tv.iv, mac_len=tv.tag_size,
+                                **self._extra_params)
+        except ValueError as e:
+            if len(tv.iv) not in range(7, 13 + 1, 2) and "Length of parameter 'nonce'" in str(e):
+                assert not tv.valid
+                return
+            if tv.tag_size not in range(4, 16 + 1, 2) and "Parameter 'mac_len'" in str(e):
+                assert not tv.valid
+                return
+            raise e
+
+        cipher.update(tv.aad)
+        ct, tag = cipher.encrypt_and_digest(tv.msg)
+        if tv.valid:
+            self.assertEqual(ct, tv.ct)
+            self.assertEqual(tag, tv.tag)
+            self.warn(tv)
+
+    def test_decrypt(self, tv):
+        self._id = "Wycheproof Decrypt CCM Test #" + str(tv.id)
+
+        try:
+            cipher = AES.new(tv.key, AES.MODE_CCM, tv.iv, mac_len=tv.tag_size,
+                                **self._extra_params)
+        except ValueError as e:
+            if len(tv.iv) not in range(7, 13 + 1, 2) and "Length of parameter 'nonce'" in str(e):
+                assert not tv.valid
+                return
+            if tv.tag_size not in range(4, 16 + 1, 2) and "Parameter 'mac_len'" in str(e):
+                assert not tv.valid
+                return
+            raise e
+
+        cipher.update(tv.aad)
+        try:
+            pt = cipher.decrypt_and_verify(tv.ct, tv.tag)
+        except ValueError:
+            assert not tv.valid
+        else:
+            assert tv.valid
+            self.assertEqual(pt, tv.msg)
+            self.warn(tv)
+
+    def test_corrupt_decrypt(self, tv):
+        self._id = "Wycheproof Corrupt Decrypt CCM Test #" + str(tv.id)
+        if len(tv.iv) not in range(7, 13 + 1, 2) or len(tv.ct) == 0:
+            return
+        cipher = AES.new(tv.key, AES.MODE_CCM, tv.iv, mac_len=tv.tag_size,
+                            **self._extra_params)
+        cipher.update(tv.aad)
+        ct_corrupt = strxor(tv.ct, b"\x00" * (len(tv.ct) - 1) + b"\x01")
+        self.assertRaises(ValueError, cipher.decrypt_and_verify, ct_corrupt, tv.tag)
+
+    def runTest(self):
+
+        for tv in self.tv:
+            self.test_encrypt(tv)
+            self.test_decrypt(tv)
+            self.test_corrupt_decrypt(tv)
+
+
+def get_tests(config={}):
+    wycheproof_warnings = config.get('wycheproof_warnings')
+
+    tests = []
+    tests += list_test_cases(CcmTests)
+    tests += list_test_cases(CcmFSMTests)
+    tests += [TestVectors()]
+    tests += [TestVectorsWycheproof(wycheproof_warnings)]
+
+    return tests
+
+
+if __name__ == '__main__':
+    def suite():
+        unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_CFB.py

@@ -0,0 +1,411 @@
+# ===================================================================
+#
+# Copyright (c) 2014, Legrandin <helderijs@gmail.com>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+# ===================================================================
+
+import unittest
+from binascii import unhexlify
+
+from Crypto.SelfTest.loader import load_test_vectors
+from Crypto.SelfTest.st_common import list_test_cases
+from Crypto.Util.py3compat import tobytes, is_string
+from Crypto.Cipher import AES, DES3, DES
+from Crypto.Hash import SHAKE128
+
+from Crypto.SelfTest.Cipher.test_CBC import BlockChainingTests
+
+
+def get_tag_random(tag, length):
+    return SHAKE128.new(data=tobytes(tag)).read(length)
+
+
+class CfbTests(BlockChainingTests):
+
+    aes_mode = AES.MODE_CFB
+    des3_mode = DES3.MODE_CFB
+
+    # Redefine test_unaligned_data_128/64
+
+    def test_unaligned_data_128(self):
+        plaintexts = [ b"7777777" ] * 100
+
+        cipher = AES.new(self.key_128, AES.MODE_CFB, self.iv_128, segment_size=8)
+        ciphertexts = [ cipher.encrypt(x) for x in plaintexts ]
+        cipher = AES.new(self.key_128, AES.MODE_CFB, self.iv_128, segment_size=8)
+        self.assertEqual(b"".join(ciphertexts), cipher.encrypt(b"".join(plaintexts)))
+
+        cipher = AES.new(self.key_128, AES.MODE_CFB, self.iv_128, segment_size=128)
+        ciphertexts = [ cipher.encrypt(x) for x in plaintexts ]
+        cipher = AES.new(self.key_128, AES.MODE_CFB, self.iv_128, segment_size=128)
+        self.assertEqual(b"".join(ciphertexts), cipher.encrypt(b"".join(plaintexts)))
+
+    def test_unaligned_data_64(self):
+        plaintexts = [ b"7777777" ] * 100
+        cipher = DES3.new(self.key_192, DES3.MODE_CFB, self.iv_64, segment_size=8)
+        ciphertexts = [ cipher.encrypt(x) for x in plaintexts ]
+        cipher = DES3.new(self.key_192, DES3.MODE_CFB, self.iv_64, segment_size=8)
+        self.assertEqual(b"".join(ciphertexts), cipher.encrypt(b"".join(plaintexts)))
+
+        cipher = DES3.new(self.key_192, DES3.MODE_CFB, self.iv_64, segment_size=64)
+        ciphertexts = [ cipher.encrypt(x) for x in plaintexts ]
+        cipher = DES3.new(self.key_192, DES3.MODE_CFB, self.iv_64, segment_size=64)
+        self.assertEqual(b"".join(ciphertexts), cipher.encrypt(b"".join(plaintexts)))
+
+    # Extra
+
+    def test_segment_size_128(self):
+        for bits in range(8, 129, 8):
+            cipher = AES.new(self.key_128, AES.MODE_CFB, self.iv_128,
+                             segment_size=bits)
+
+        for bits in 0, 7, 9, 127, 129:
+            self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_CFB,
+                              self.iv_128,
+                              segment_size=bits)
+
+    def test_segment_size_64(self):
+        for bits in range(8, 65, 8):
+            cipher = DES3.new(self.key_192, DES3.MODE_CFB, self.iv_64,
+                              segment_size=bits)
+
+        for bits in 0, 7, 9, 63, 65:
+            self.assertRaises(ValueError, DES3.new, self.key_192, AES.MODE_CFB,
+                              self.iv_64,
+                              segment_size=bits)
+
+
+class NistCfbVectors(unittest.TestCase):
+
+    def _do_kat_aes_test(self, file_name, segment_size):
+
+        test_vectors = load_test_vectors(("Cipher", "AES"),
+                            file_name,
+                            "AES CFB%d KAT" % segment_size,
+                            { "count" : lambda x: int(x) } )
+        if test_vectors is None:
+            return
+
+        direction = None
+        for tv in test_vectors:
+
+            # The test vector file contains some directive lines
+            if is_string(tv):
+                direction = tv
+                continue
+
+            self.description = tv.desc
+            cipher = AES.new(tv.key, AES.MODE_CFB, tv.iv,
+                             segment_size=segment_size)
+            if direction == "[ENCRYPT]":
+                self.assertEqual(cipher.encrypt(tv.plaintext), tv.ciphertext)
+            elif direction == "[DECRYPT]":
+                self.assertEqual(cipher.decrypt(tv.ciphertext), tv.plaintext)
+            else:
+                assert False
+
+    # See Section 6.4.5 in AESAVS
+    def _do_mct_aes_test(self, file_name, segment_size):
+
+        test_vectors = load_test_vectors(("Cipher", "AES"),
+                            file_name,
+                            "AES CFB%d Montecarlo" % segment_size,
+                            { "count" : lambda x: int(x) } )
+        if test_vectors is None:
+            return
+
+        assert(segment_size in (8, 128))
+
+        direction = None
+        for tv in test_vectors:
+
+            # The test vector file contains some directive lines
+            if is_string(tv):
+                direction = tv
+                continue
+
+            self.description = tv.desc
+            cipher = AES.new(tv.key, AES.MODE_CFB, tv.iv,
+                             segment_size=segment_size)
+
+            def get_input(input_text, output_seq, j):
+                # CFB128
+                if segment_size == 128:
+                    if j >= 2:
+                        return output_seq[-2]
+                    return [input_text, tv.iv][j]
+                # CFB8
+                if j == 0:
+                    return input_text
+                elif j <= 16:
+                    return tv.iv[j - 1:j]
+                return output_seq[j - 17]
+
+            if direction == '[ENCRYPT]':
+                cts = []
+                for j in range(1000):
+                    plaintext = get_input(tv.plaintext, cts, j)
+                    cts.append(cipher.encrypt(plaintext))
+                self.assertEqual(cts[-1], tv.ciphertext)
+            elif direction == '[DECRYPT]':
+                pts = []
+                for j in range(1000):
+                    ciphertext = get_input(tv.ciphertext, pts, j)
+                    pts.append(cipher.decrypt(ciphertext))
+                self.assertEqual(pts[-1], tv.plaintext)
+            else:
+                assert False
+
+    def _do_tdes_test(self, file_name, segment_size):
+
+        test_vectors = load_test_vectors(("Cipher", "TDES"),
+                            file_name,
+                            "TDES CFB%d KAT" % segment_size,
+                            { "count" : lambda x: int(x) } )
+        if test_vectors is None:
+            return
+
+        direction = None
+        for tv in test_vectors:
+
+            # The test vector file contains some directive lines
+            if is_string(tv):
+                direction = tv
+                continue
+
+            self.description = tv.desc
+            if hasattr(tv, "keys"):
+                cipher = DES.new(tv.keys, DES.MODE_CFB, tv.iv,
+                                 segment_size=segment_size)
+            else:
+                if tv.key1 != tv.key3:
+                    key = tv.key1 + tv.key2 + tv.key3  # Option 3
+                else:
+                    key = tv.key1 + tv.key2            # Option 2
+                cipher = DES3.new(key, DES3.MODE_CFB, tv.iv,
+                                  segment_size=segment_size)
+            if direction == "[ENCRYPT]":
+                self.assertEqual(cipher.encrypt(tv.plaintext), tv.ciphertext)
+            elif direction == "[DECRYPT]":
+                self.assertEqual(cipher.decrypt(tv.ciphertext), tv.plaintext)
+            else:
+                assert False
+
+
+# Create one test method per file
+nist_aes_kat_mmt_files = (
+    # KAT
+    "CFB?GFSbox128.rsp",
+    "CFB?GFSbox192.rsp",
+    "CFB?GFSbox256.rsp",
+    "CFB?KeySbox128.rsp",
+    "CFB?KeySbox192.rsp",
+    "CFB?KeySbox256.rsp",
+    "CFB?VarKey128.rsp",
+    "CFB?VarKey192.rsp",
+    "CFB?VarKey256.rsp",
+    "CFB?VarTxt128.rsp",
+    "CFB?VarTxt192.rsp",
+    "CFB?VarTxt256.rsp",
+    # MMT
+    "CFB?MMT128.rsp",
+    "CFB?MMT192.rsp",
+    "CFB?MMT256.rsp",
+    )
+nist_aes_mct_files = (
+    "CFB?MCT128.rsp",
+    "CFB?MCT192.rsp",
+    "CFB?MCT256.rsp",
+    )
+
+for file_gen_name in nist_aes_kat_mmt_files:
+    for bits in "8", "128":
+        file_name = file_gen_name.replace("?", bits)
+        def new_func(self, file_name=file_name, bits=bits):
+            self._do_kat_aes_test(file_name, int(bits))
+        setattr(NistCfbVectors, "test_AES_" + file_name, new_func)
+
+for file_gen_name in nist_aes_mct_files:
+    for bits in "8", "128":
+        file_name = file_gen_name.replace("?", bits)
+        def new_func(self, file_name=file_name, bits=bits):
+            self._do_mct_aes_test(file_name, int(bits))
+        setattr(NistCfbVectors, "test_AES_" + file_name, new_func)
+del file_name, new_func
+
+nist_tdes_files = (
+    "TCFB?MMT2.rsp",    # 2TDES
+    "TCFB?MMT3.rsp",    # 3TDES
+    "TCFB?invperm.rsp", # Single DES
+    "TCFB?permop.rsp",
+    "TCFB?subtab.rsp",
+    "TCFB?varkey.rsp",
+    "TCFB?vartext.rsp",
+    )
+
+for file_gen_name in nist_tdes_files:
+    for bits in "8", "64":
+        file_name = file_gen_name.replace("?", bits)
+        def new_func(self, file_name=file_name, bits=bits):
+            self._do_tdes_test(file_name, int(bits))
+    setattr(NistCfbVectors, "test_TDES_" + file_name, new_func)
+
+# END OF NIST CBC TEST VECTORS
+
+
+class SP800TestVectors(unittest.TestCase):
+    """Class exercising the CFB test vectors found in Section F.3
+    of NIST SP 800-3A"""
+
+    def test_aes_128_cfb8(self):
+        plaintext =     '6bc1bee22e409f96e93d7e117393172aae2d'
+        ciphertext =    '3b79424c9c0dd436bace9e0ed4586a4f32b9'
+        key =           '2b7e151628aed2a6abf7158809cf4f3c'
+        iv =            '000102030405060708090a0b0c0d0e0f'
+
+        key = unhexlify(key)
+        iv = unhexlify(iv)
+        plaintext = unhexlify(plaintext)
+        ciphertext = unhexlify(ciphertext)
+
+        cipher = AES.new(key, AES.MODE_CFB, iv, segment_size=8)
+        self.assertEqual(cipher.encrypt(plaintext), ciphertext)
+        cipher = AES.new(key, AES.MODE_CFB, iv, segment_size=8)
+        self.assertEqual(cipher.decrypt(ciphertext), plaintext)
+
+    def test_aes_192_cfb8(self):
+        plaintext =     '6bc1bee22e409f96e93d7e117393172aae2d'
+        ciphertext =    'cda2521ef0a905ca44cd057cbf0d47a0678a'
+        key =           '8e73b0f7da0e6452c810f32b809079e562f8ead2522c6b7b'
+        iv =            '000102030405060708090a0b0c0d0e0f'
+
+        key = unhexlify(key)
+        iv = unhexlify(iv)
+        plaintext = unhexlify(plaintext)
+        ciphertext = unhexlify(ciphertext)
+
+        cipher = AES.new(key, AES.MODE_CFB, iv, segment_size=8)
+        self.assertEqual(cipher.encrypt(plaintext), ciphertext)
+        cipher = AES.new(key, AES.MODE_CFB, iv, segment_size=8)
+        self.assertEqual(cipher.decrypt(ciphertext), plaintext)
+
+    def test_aes_256_cfb8(self):
+        plaintext =     '6bc1bee22e409f96e93d7e117393172aae2d'
+        ciphertext =    'dc1f1a8520a64db55fcc8ac554844e889700'
+        key =           '603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4'
+        iv =            '000102030405060708090a0b0c0d0e0f'
+
+        key = unhexlify(key)
+        iv = unhexlify(iv)
+        plaintext = unhexlify(plaintext)
+        ciphertext = unhexlify(ciphertext)
+
+        cipher = AES.new(key, AES.MODE_CFB, iv, segment_size=8)
+        self.assertEqual(cipher.encrypt(plaintext), ciphertext)
+        cipher = AES.new(key, AES.MODE_CFB, iv, segment_size=8)
+        self.assertEqual(cipher.decrypt(ciphertext), plaintext)
+
+    def test_aes_128_cfb128(self):
+        plaintext =     '6bc1bee22e409f96e93d7e117393172a' +\
+                        'ae2d8a571e03ac9c9eb76fac45af8e51' +\
+                        '30c81c46a35ce411e5fbc1191a0a52ef' +\
+                        'f69f2445df4f9b17ad2b417be66c3710'
+        ciphertext =    '3b3fd92eb72dad20333449f8e83cfb4a' +\
+                        'c8a64537a0b3a93fcde3cdad9f1ce58b' +\
+                        '26751f67a3cbb140b1808cf187a4f4df' +\
+                        'c04b05357c5d1c0eeac4c66f9ff7f2e6'
+        key =           '2b7e151628aed2a6abf7158809cf4f3c'
+        iv =            '000102030405060708090a0b0c0d0e0f'
+
+        key = unhexlify(key)
+        iv = unhexlify(iv)
+        plaintext = unhexlify(plaintext)
+        ciphertext = unhexlify(ciphertext)
+
+        cipher = AES.new(key, AES.MODE_CFB, iv, segment_size=128)
+        self.assertEqual(cipher.encrypt(plaintext), ciphertext)
+        cipher = AES.new(key, AES.MODE_CFB, iv, segment_size=128)
+        self.assertEqual(cipher.decrypt(ciphertext), plaintext)
+
+    def test_aes_192_cfb128(self):
+        plaintext =     '6bc1bee22e409f96e93d7e117393172a' +\
+                        'ae2d8a571e03ac9c9eb76fac45af8e51' +\
+                        '30c81c46a35ce411e5fbc1191a0a52ef' +\
+                        'f69f2445df4f9b17ad2b417be66c3710'
+        ciphertext =    'cdc80d6fddf18cab34c25909c99a4174' +\
+                        '67ce7f7f81173621961a2b70171d3d7a' +\
+                        '2e1e8a1dd59b88b1c8e60fed1efac4c9' +\
+                        'c05f9f9ca9834fa042ae8fba584b09ff'
+        key =           '8e73b0f7da0e6452c810f32b809079e562f8ead2522c6b7b'
+        iv =            '000102030405060708090a0b0c0d0e0f'
+
+        key = unhexlify(key)
+        iv = unhexlify(iv)
+        plaintext = unhexlify(plaintext)
+        ciphertext = unhexlify(ciphertext)
+
+        cipher = AES.new(key, AES.MODE_CFB, iv, segment_size=128)
+        self.assertEqual(cipher.encrypt(plaintext), ciphertext)
+        cipher = AES.new(key, AES.MODE_CFB, iv, segment_size=128)
+        self.assertEqual(cipher.decrypt(ciphertext), plaintext)
+
+    def test_aes_256_cfb128(self):
+        plaintext =     '6bc1bee22e409f96e93d7e117393172a' +\
+                        'ae2d8a571e03ac9c9eb76fac45af8e51' +\
+                        '30c81c46a35ce411e5fbc1191a0a52ef' +\
+                        'f69f2445df4f9b17ad2b417be66c3710'
+
+        ciphertext =    'dc7e84bfda79164b7ecd8486985d3860' +\
+                        '39ffed143b28b1c832113c6331e5407b' +\
+                        'df10132415e54b92a13ed0a8267ae2f9' +\
+                        '75a385741ab9cef82031623d55b1e471'
+        key =           '603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4'
+        iv =            '000102030405060708090a0b0c0d0e0f'
+
+        key = unhexlify(key)
+        iv = unhexlify(iv)
+        plaintext = unhexlify(plaintext)
+        ciphertext = unhexlify(ciphertext)
+
+        cipher = AES.new(key, AES.MODE_CFB, iv, segment_size=128)
+        self.assertEqual(cipher.encrypt(plaintext), ciphertext)
+        cipher = AES.new(key, AES.MODE_CFB, iv, segment_size=128)
+        self.assertEqual(cipher.decrypt(ciphertext), plaintext)
+
+
+def get_tests(config={}):
+    tests = []
+    tests += list_test_cases(CfbTests)
+    if config.get('slow_tests'):
+        tests += list_test_cases(NistCfbVectors)
+    tests += list_test_cases(SP800TestVectors)
+    return tests
+
+
+if __name__ == '__main__':
+    suite = lambda: unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_CTR.py

@@ -0,0 +1,472 @@
+# ===================================================================
+#
+# Copyright (c) 2015, Legrandin <helderijs@gmail.com>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+# ===================================================================
+
+import unittest
+from binascii import hexlify, unhexlify
+
+from Crypto.SelfTest.st_common import list_test_cases
+from Crypto.Util.py3compat import tobytes, bchr
+from Crypto.Cipher import AES, DES3
+from Crypto.Hash import SHAKE128, SHA256
+from Crypto.Util import Counter
+
+def get_tag_random(tag, length):
+    return SHAKE128.new(data=tobytes(tag)).read(length)
+
+class CtrTests(unittest.TestCase):
+
+    key_128 = get_tag_random("key_128", 16)
+    key_192 = get_tag_random("key_192", 24)
+    nonce_32 = get_tag_random("nonce_32", 4)
+    nonce_64 = get_tag_random("nonce_64", 8)
+    ctr_64 = Counter.new(32, prefix=nonce_32)
+    ctr_128 = Counter.new(64, prefix=nonce_64)
+
+    def test_loopback_128(self):
+        cipher = AES.new(self.key_128, AES.MODE_CTR, counter=self.ctr_128)
+        pt = get_tag_random("plaintext", 16 * 100)
+        ct = cipher.encrypt(pt)
+
+        cipher = AES.new(self.key_128, AES.MODE_CTR, counter=self.ctr_128)
+        pt2 = cipher.decrypt(ct)
+        self.assertEqual(pt, pt2)
+
+    def test_loopback_64(self):
+        cipher = DES3.new(self.key_192, DES3.MODE_CTR, counter=self.ctr_64)
+        pt = get_tag_random("plaintext", 8 * 100)
+        ct = cipher.encrypt(pt)
+
+        cipher = DES3.new(self.key_192, DES3.MODE_CTR, counter=self.ctr_64)
+        pt2 = cipher.decrypt(ct)
+        self.assertEqual(pt, pt2)
+
+    def test_invalid_counter_parameter(self):
+        # Counter object is required for ciphers with short block size
+        self.assertRaises(TypeError, DES3.new, self.key_192, AES.MODE_CTR)
+        # Positional arguments are not allowed (Counter must be passed as
+        # keyword)
+        self.assertRaises(TypeError, AES.new, self.key_128, AES.MODE_CTR, self.ctr_128)
+
+    def test_nonce_attribute(self):
+        # Nonce attribute is the prefix passed to Counter (DES3)
+        cipher = DES3.new(self.key_192, DES3.MODE_CTR, counter=self.ctr_64)
+        self.assertEqual(cipher.nonce, self.nonce_32)
+
+        # Nonce attribute is the prefix passed to Counter (AES)
+        cipher = AES.new(self.key_128, AES.MODE_CTR, counter=self.ctr_128)
+        self.assertEqual(cipher.nonce, self.nonce_64)
+
+        # Nonce attribute is not defined if suffix is used in Counter
+        counter = Counter.new(64, prefix=self.nonce_32, suffix=self.nonce_32)
+        cipher = AES.new(self.key_128, AES.MODE_CTR, counter=counter)
+        self.assertFalse(hasattr(cipher, "nonce"))
+
+    def test_nonce_parameter(self):
+        # Nonce parameter becomes nonce attribute
+        cipher1 = AES.new(self.key_128, AES.MODE_CTR, nonce=self.nonce_64)
+        self.assertEqual(cipher1.nonce, self.nonce_64)
+
+        counter = Counter.new(64, prefix=self.nonce_64, initial_value=0)
+        cipher2 = AES.new(self.key_128, AES.MODE_CTR, counter=counter)
+        self.assertEqual(cipher1.nonce, cipher2.nonce)
+
+        pt = get_tag_random("plaintext", 65536)
+        self.assertEqual(cipher1.encrypt(pt), cipher2.encrypt(pt))
+
+        # Nonce is implicitly created (for AES) when no parameters are passed
+        nonce1 = AES.new(self.key_128, AES.MODE_CTR).nonce
+        nonce2 = AES.new(self.key_128, AES.MODE_CTR).nonce
+        self.assertNotEqual(nonce1, nonce2)
+        self.assertEqual(len(nonce1), 8)
+
+        # Nonce can be zero-length
+        cipher = AES.new(self.key_128, AES.MODE_CTR, nonce=b"")
+        self.assertEqual(b"", cipher.nonce)
+        cipher.encrypt(b'0'*300)
+
+        # Nonce and Counter are mutually exclusive
+        self.assertRaises(TypeError, AES.new, self.key_128, AES.MODE_CTR,
+                          counter=self.ctr_128, nonce=self.nonce_64)
+
+    def test_initial_value_parameter(self):
+        # Test with nonce parameter
+        cipher1 = AES.new(self.key_128, AES.MODE_CTR,
+                          nonce=self.nonce_64, initial_value=0xFFFF)
+        counter = Counter.new(64, prefix=self.nonce_64, initial_value=0xFFFF)
+        cipher2 = AES.new(self.key_128, AES.MODE_CTR, counter=counter)
+        pt = get_tag_random("plaintext", 65536)
+        self.assertEqual(cipher1.encrypt(pt), cipher2.encrypt(pt))
+
+        # Test without nonce parameter
+        cipher1 = AES.new(self.key_128, AES.MODE_CTR,
+                          initial_value=0xFFFF)
+        counter = Counter.new(64, prefix=cipher1.nonce, initial_value=0xFFFF)
+        cipher2 = AES.new(self.key_128, AES.MODE_CTR, counter=counter)
+        pt = get_tag_random("plaintext", 65536)
+        self.assertEqual(cipher1.encrypt(pt), cipher2.encrypt(pt))
+
+        # Initial_value and Counter are mutually exclusive
+        self.assertRaises(TypeError, AES.new, self.key_128, AES.MODE_CTR,
+                          counter=self.ctr_128, initial_value=0)
+
+    def test_initial_value_bytes_parameter(self):
+        # Same result as when passing an integer
+        cipher1 = AES.new(self.key_128, AES.MODE_CTR,
+                          nonce=self.nonce_64,
+                          initial_value=b"\x00"*6+b"\xFF\xFF")
+        cipher2 = AES.new(self.key_128, AES.MODE_CTR,
+                          nonce=self.nonce_64, initial_value=0xFFFF)
+        pt = get_tag_random("plaintext", 65536)
+        self.assertEqual(cipher1.encrypt(pt), cipher2.encrypt(pt))
+
+        # Fail if the iv is too large
+        self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_CTR,
+                          initial_value=b"5"*17)
+        self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_CTR,
+                          nonce=self.nonce_64, initial_value=b"5"*9)
+
+        # Fail if the iv is too short
+        self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_CTR,
+                          initial_value=b"5"*15)
+        self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_CTR,
+                          nonce=self.nonce_64, initial_value=b"5"*7)
+
+    def test_iv_with_matching_length(self):
+        self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_CTR,
+                          counter=Counter.new(120))
+        self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_CTR,
+                          counter=Counter.new(136))
+
+    def test_block_size_128(self):
+        cipher = AES.new(self.key_128, AES.MODE_CTR, counter=self.ctr_128)
+        self.assertEqual(cipher.block_size, AES.block_size)
+
+    def test_block_size_64(self):
+        cipher = DES3.new(self.key_192, DES3.MODE_CTR, counter=self.ctr_64)
+        self.assertEqual(cipher.block_size, DES3.block_size)
+
+    def test_unaligned_data_128(self):
+        plaintexts = [ b"7777777" ] * 100
+
+        cipher = AES.new(self.key_128, AES.MODE_CTR, counter=self.ctr_128)
+        ciphertexts = [ cipher.encrypt(x) for x in plaintexts ]
+        cipher = AES.new(self.key_128, AES.MODE_CTR, counter=self.ctr_128)
+        self.assertEqual(b"".join(ciphertexts), cipher.encrypt(b"".join(plaintexts)))
+
+        cipher = AES.new(self.key_128, AES.MODE_CTR, counter=self.ctr_128)
+        ciphertexts = [ cipher.encrypt(x) for x in plaintexts ]
+        cipher = AES.new(self.key_128, AES.MODE_CTR, counter=self.ctr_128)
+        self.assertEqual(b"".join(ciphertexts), cipher.encrypt(b"".join(plaintexts)))
+
+    def test_unaligned_data_64(self):
+        plaintexts = [ b"7777777" ] * 100
+        cipher = DES3.new(self.key_192, AES.MODE_CTR, counter=self.ctr_64)
+        ciphertexts = [ cipher.encrypt(x) for x in plaintexts ]
+        cipher = DES3.new(self.key_192, AES.MODE_CTR, counter=self.ctr_64)
+        self.assertEqual(b"".join(ciphertexts), cipher.encrypt(b"".join(plaintexts)))
+
+        cipher = DES3.new(self.key_192, AES.MODE_CTR, counter=self.ctr_64)
+        ciphertexts = [ cipher.encrypt(x) for x in plaintexts ]
+        cipher = DES3.new(self.key_192, AES.MODE_CTR, counter=self.ctr_64)
+        self.assertEqual(b"".join(ciphertexts), cipher.encrypt(b"".join(plaintexts)))
+
+    def test_unknown_parameters(self):
+        self.assertRaises(TypeError, AES.new, self.key_128, AES.MODE_CTR,
+                          7, counter=self.ctr_128)
+        self.assertRaises(TypeError, AES.new, self.key_128, AES.MODE_CTR,
+                          counter=self.ctr_128, unknown=7)
+        # But some are only known by the base cipher (e.g. use_aesni consumed by the AES module)
+        AES.new(self.key_128, AES.MODE_CTR, counter=self.ctr_128, use_aesni=False)
+
+    def test_null_encryption_decryption(self):
+        for func in "encrypt", "decrypt":
+            cipher = AES.new(self.key_128, AES.MODE_CTR, counter=self.ctr_128)
+            result = getattr(cipher, func)(b"")
+            self.assertEqual(result, b"")
+
+    def test_either_encrypt_or_decrypt(self):
+        cipher = AES.new(self.key_128, AES.MODE_CTR, counter=self.ctr_128)
+        cipher.encrypt(b"")
+        self.assertRaises(TypeError, cipher.decrypt, b"")
+
+        cipher = AES.new(self.key_128, AES.MODE_CTR, counter=self.ctr_128)
+        cipher.decrypt(b"")
+        self.assertRaises(TypeError, cipher.encrypt, b"")
+
+    def test_wrap_around(self):
+        # Counter is only 8 bits, so we can only encrypt/decrypt 256 blocks (=4096 bytes)
+        counter = Counter.new(8, prefix=bchr(9) * 15)
+        max_bytes = 4096
+
+        cipher = AES.new(self.key_128, AES.MODE_CTR, counter=counter)
+        cipher.encrypt(b'9' * max_bytes)
+        self.assertRaises(OverflowError, cipher.encrypt, b'9')
+
+        cipher = AES.new(self.key_128, AES.MODE_CTR, counter=counter)
+        self.assertRaises(OverflowError, cipher.encrypt, b'9' * (max_bytes + 1))
+
+        cipher = AES.new(self.key_128, AES.MODE_CTR, counter=counter)
+        cipher.decrypt(b'9' * max_bytes)
+        self.assertRaises(OverflowError, cipher.decrypt, b'9')
+
+        cipher = AES.new(self.key_128, AES.MODE_CTR, counter=counter)
+        self.assertRaises(OverflowError, cipher.decrypt, b'9' * (max_bytes + 1))
+
+    def test_bytearray(self):
+        data = b"1" * 16
+        iv = b"\x00" * 6 + b"\xFF\xFF"
+
+        # Encrypt
+        cipher1 = AES.new(self.key_128, AES.MODE_CTR,
+                          nonce=self.nonce_64,
+                          initial_value=iv)
+        ref1 = cipher1.encrypt(data)
+
+        cipher2 = AES.new(self.key_128, AES.MODE_CTR,
+                          nonce=bytearray(self.nonce_64),
+                          initial_value=bytearray(iv))
+        ref2 = cipher2.encrypt(bytearray(data))
+
+        self.assertEqual(ref1, ref2)
+        self.assertEqual(cipher1.nonce, cipher2.nonce)
+
+        # Decrypt
+        cipher3 = AES.new(self.key_128, AES.MODE_CTR,
+                          nonce=self.nonce_64,
+                          initial_value=iv)
+        ref3 = cipher3.decrypt(data)
+
+        cipher4 = AES.new(self.key_128, AES.MODE_CTR,
+                          nonce=bytearray(self.nonce_64),
+                          initial_value=bytearray(iv))
+        ref4 = cipher4.decrypt(bytearray(data))
+
+        self.assertEqual(ref3, ref4)
+
+    def test_very_long_data(self):
+        cipher = AES.new(b'A' * 32, AES.MODE_CTR, nonce=b'')
+        ct = cipher.encrypt(b'B' * 1000000)
+        digest = SHA256.new(ct).hexdigest()
+        self.assertEqual(digest, "96204fc470476561a3a8f3b6fe6d24be85c87510b638142d1d0fb90989f8a6a6")
+
+    def test_output_param(self):
+
+        pt = b'5' * 128
+        cipher = AES.new(b'4'*16, AES.MODE_CTR, nonce=self.nonce_64)
+        ct = cipher.encrypt(pt)
+
+        output = bytearray(128)
+        cipher = AES.new(b'4'*16, AES.MODE_CTR, nonce=self.nonce_64)
+        res = cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+        self.assertEqual(res, None)
+
+        cipher = AES.new(b'4'*16, AES.MODE_CTR, nonce=self.nonce_64)
+        res = cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+        self.assertEqual(res, None)
+
+    def test_output_param_memoryview(self):
+
+        pt = b'5' * 128
+        cipher = AES.new(b'4'*16, AES.MODE_CTR, nonce=self.nonce_64)
+        ct = cipher.encrypt(pt)
+
+        output = memoryview(bytearray(128))
+        cipher = AES.new(b'4'*16, AES.MODE_CTR, nonce=self.nonce_64)
+        cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+
+        cipher = AES.new(b'4'*16, AES.MODE_CTR, nonce=self.nonce_64)
+        cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+
+    def test_output_param_neg(self):
+        LEN_PT = 128
+
+        pt = b'5' * LEN_PT
+        cipher = AES.new(b'4'*16, AES.MODE_CTR, nonce=self.nonce_64)
+        ct = cipher.encrypt(pt)
+
+        cipher = AES.new(b'4'*16, AES.MODE_CTR, nonce=self.nonce_64)
+        self.assertRaises(TypeError, cipher.encrypt, pt, output=b'0' * LEN_PT)
+
+        cipher = AES.new(b'4'*16, AES.MODE_CTR, nonce=self.nonce_64)
+        self.assertRaises(TypeError, cipher.decrypt, ct, output=b'0' * LEN_PT)
+
+        shorter_output = bytearray(LEN_PT - 1)
+        cipher = AES.new(b'4'*16, AES.MODE_CTR, nonce=self.nonce_64)
+        self.assertRaises(ValueError, cipher.encrypt, pt, output=shorter_output)
+        cipher = AES.new(b'4'*16, AES.MODE_CTR, nonce=self.nonce_64)
+        self.assertRaises(ValueError, cipher.decrypt, ct, output=shorter_output)
+
+
+class SP800TestVectors(unittest.TestCase):
+    """Class exercising the CTR test vectors found in Section F.5
+    of NIST SP 800-38A"""
+
+    def test_aes_128(self):
+        plaintext =     '6bc1bee22e409f96e93d7e117393172a' +\
+                        'ae2d8a571e03ac9c9eb76fac45af8e51' +\
+                        '30c81c46a35ce411e5fbc1191a0a52ef' +\
+                        'f69f2445df4f9b17ad2b417be66c3710'
+        ciphertext =    '874d6191b620e3261bef6864990db6ce' +\
+                        '9806f66b7970fdff8617187bb9fffdff' +\
+                        '5ae4df3edbd5d35e5b4f09020db03eab' +\
+                        '1e031dda2fbe03d1792170a0f3009cee'
+        key =           '2b7e151628aed2a6abf7158809cf4f3c'
+        counter =       Counter.new(nbits=16,
+                                    prefix=unhexlify('f0f1f2f3f4f5f6f7f8f9fafbfcfd'),
+                                    initial_value=0xfeff)
+
+        key = unhexlify(key)
+        plaintext = unhexlify(plaintext)
+        ciphertext = unhexlify(ciphertext)
+
+        cipher = AES.new(key, AES.MODE_CTR, counter=counter)
+        self.assertEqual(cipher.encrypt(plaintext), ciphertext)
+        cipher = AES.new(key, AES.MODE_CTR, counter=counter)
+        self.assertEqual(cipher.decrypt(ciphertext), plaintext)
+
+    def test_aes_192(self):
+        plaintext =     '6bc1bee22e409f96e93d7e117393172a' +\
+                        'ae2d8a571e03ac9c9eb76fac45af8e51' +\
+                        '30c81c46a35ce411e5fbc1191a0a52ef' +\
+                        'f69f2445df4f9b17ad2b417be66c3710'
+        ciphertext =    '1abc932417521ca24f2b0459fe7e6e0b' +\
+                        '090339ec0aa6faefd5ccc2c6f4ce8e94' +\
+                        '1e36b26bd1ebc670d1bd1d665620abf7' +\
+                        '4f78a7f6d29809585a97daec58c6b050'
+        key =           '8e73b0f7da0e6452c810f32b809079e562f8ead2522c6b7b'
+        counter =       Counter.new(nbits=16,
+                                    prefix=unhexlify('f0f1f2f3f4f5f6f7f8f9fafbfcfd'),
+                                    initial_value=0xfeff)
+
+        key = unhexlify(key)
+        plaintext = unhexlify(plaintext)
+        ciphertext = unhexlify(ciphertext)
+
+        cipher = AES.new(key, AES.MODE_CTR, counter=counter)
+        self.assertEqual(cipher.encrypt(plaintext), ciphertext)
+        cipher = AES.new(key, AES.MODE_CTR, counter=counter)
+        self.assertEqual(cipher.decrypt(ciphertext), plaintext)
+
+    def test_aes_256(self):
+        plaintext =     '6bc1bee22e409f96e93d7e117393172a' +\
+                        'ae2d8a571e03ac9c9eb76fac45af8e51' +\
+                        '30c81c46a35ce411e5fbc1191a0a52ef' +\
+                        'f69f2445df4f9b17ad2b417be66c3710'
+        ciphertext =    '601ec313775789a5b7a7f504bbf3d228' +\
+                        'f443e3ca4d62b59aca84e990cacaf5c5' +\
+                        '2b0930daa23de94ce87017ba2d84988d' +\
+                        'dfc9c58db67aada613c2dd08457941a6'
+        key =           '603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4'
+        counter =       Counter.new(nbits=16,
+                                    prefix=unhexlify('f0f1f2f3f4f5f6f7f8f9fafbfcfd'),
+                                    initial_value=0xfeff)
+        key = unhexlify(key)
+        plaintext = unhexlify(plaintext)
+        ciphertext = unhexlify(ciphertext)
+
+        cipher = AES.new(key, AES.MODE_CTR, counter=counter)
+        self.assertEqual(cipher.encrypt(plaintext), ciphertext)
+        cipher = AES.new(key, AES.MODE_CTR, counter=counter)
+        self.assertEqual(cipher.decrypt(ciphertext), plaintext)
+
+
+class RFC3686TestVectors(unittest.TestCase):
+
+    # Each item is a test vector with:
+    # - plaintext
+    # - ciphertext
+    # - key (AES 128, 192 or 256 bits)
+    # - counter prefix (4 byte nonce + 8 byte nonce)
+    data = (
+            ('53696e676c6520626c6f636b206d7367',
+             'e4095d4fb7a7b3792d6175a3261311b8',
+             'ae6852f8121067cc4bf7a5765577f39e',
+             '000000300000000000000000'),
+            ('000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f',
+             '5104a106168a72d9790d41ee8edad388eb2e1efc46da57c8fce630df9141be28',
+             '7e24067817fae0d743d6ce1f32539163',
+             '006cb6dbc0543b59da48d90b'),
+            ('000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20212223',
+             'c1cf48a89f2ffdd9cf4652e9efdb72d74540a42bde6d7836d59a5ceaaef3105325b2072f',
+             '7691be035e5020a8ac6e618529f9a0dc',
+             '00e0017b27777f3f4a1786f0'),
+            ('53696e676c6520626c6f636b206d7367',
+             '4b55384fe259c9c84e7935a003cbe928',
+             '16af5b145fc9f579c175f93e3bfb0eed863d06ccfdb78515',
+             '0000004836733c147d6d93cb'),
+            ('000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f',
+             '453243fc609b23327edfaafa7131cd9f8490701c5ad4a79cfc1fe0ff42f4fb00',
+             '7c5cb2401b3dc33c19e7340819e0f69c678c3db8e6f6a91a',
+             '0096b03b020c6eadc2cb500d'),
+            ('000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20212223',
+             '96893fc55e5c722f540b7dd1ddf7e758d288bc95c69165884536c811662f2188abee0935',
+             '02bf391ee8ecb159b959617b0965279bf59b60a786d3e0fe',
+             '0007bdfd5cbd60278dcc0912'),
+            ('53696e676c6520626c6f636b206d7367',
+             '145ad01dbf824ec7560863dc71e3e0c0',
+             '776beff2851db06f4c8a0542c8696f6c6a81af1eec96b4d37fc1d689e6c1c104',
+             '00000060db5672c97aa8f0b2'),
+            ('000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f',
+             'f05e231b3894612c49ee000b804eb2a9b8306b508f839d6a5530831d9344af1c',
+             'f6d66d6bd52d59bb0796365879eff886c66dd51a5b6a99744b50590c87a23884',
+             '00faac24c1585ef15a43d875'),
+            ('000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f20212223',
+             'eb6c52821d0bbbf7ce7594462aca4faab407df866569fd07f48cc0b583d6071f1ec0e6b8',
+             'ff7a617ce69148e4f1726e2f43581de2aa62d9f805532edff1eed687fb54153d',
+             '001cc5b751a51d70a1c11148')
+        )
+
+    bindata = []
+    for tv in data:
+        bindata.append([unhexlify(x) for x in tv])
+
+    def runTest(self):
+        for pt, ct, key, prefix in self.bindata:
+            counter = Counter.new(32, prefix=prefix)
+            cipher = AES.new(key, AES.MODE_CTR, counter=counter)
+            result = cipher.encrypt(pt)
+            self.assertEqual(hexlify(ct), hexlify(result))
+
+
+def get_tests(config={}):
+    tests = []
+    tests += list_test_cases(CtrTests)
+    tests += list_test_cases(SP800TestVectors)
+    tests += [ RFC3686TestVectors() ]
+    return tests
+
+
+if __name__ == '__main__':
+    suite = lambda: unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_ChaCha20.py

@@ -0,0 +1,529 @@
+# ===================================================================
+#
+# Copyright (c) 2014, Legrandin <helderijs@gmail.com>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+# ===================================================================
+
+import os
+import re
+import unittest
+from binascii import hexlify, unhexlify
+
+from Crypto.Util.py3compat import b, tobytes, bchr
+from Crypto.Util.strxor import strxor_c
+from Crypto.SelfTest.st_common import list_test_cases
+
+from Crypto.Cipher import ChaCha20
+
+
+class ChaCha20Test(unittest.TestCase):
+
+    def test_new_positive(self):
+        cipher = ChaCha20.new(key=b("0")*32, nonce=b"0"*8)
+        self.assertEqual(cipher.nonce, b"0" * 8)
+        cipher = ChaCha20.new(key=b("0")*32, nonce=b"0"*12)
+        self.assertEqual(cipher.nonce, b"0" * 12)
+
+    def test_new_negative(self):
+        new = ChaCha20.new
+        self.assertRaises(TypeError, new)
+        self.assertRaises(TypeError, new, nonce=b("0"))
+        self.assertRaises(ValueError, new, nonce=b("0")*8, key=b("0"))
+        self.assertRaises(ValueError, new, nonce=b("0"), key=b("0")*32)
+
+    def test_default_nonce(self):
+        cipher1 = ChaCha20.new(key=bchr(1) * 32)
+        cipher2 = ChaCha20.new(key=bchr(1) * 32)
+        self.assertEqual(len(cipher1.nonce), 8)
+        self.assertNotEqual(cipher1.nonce, cipher2.nonce)
+
+    def test_nonce(self):
+        key = b'A' * 32
+
+        nonce1 = b'P' * 8
+        cipher1 = ChaCha20.new(key=key, nonce=nonce1)
+        self.assertEqual(nonce1, cipher1.nonce)
+
+        nonce2 = b'Q' * 12
+        cipher2 = ChaCha20.new(key=key, nonce=nonce2)
+        self.assertEqual(nonce2, cipher2.nonce)
+
+    def test_eiter_encrypt_or_decrypt(self):
+        """Verify that a cipher cannot be used for both decrypting and encrypting"""
+
+        c1 = ChaCha20.new(key=b("5") * 32, nonce=b("6") * 8)
+        c1.encrypt(b("8"))
+        self.assertRaises(TypeError, c1.decrypt, b("9"))
+
+        c2 = ChaCha20.new(key=b("5") * 32, nonce=b("6") * 8)
+        c2.decrypt(b("8"))
+        self.assertRaises(TypeError, c2.encrypt, b("9"))
+
+    def test_round_trip(self):
+        pt = b("A") * 1024
+        c1 = ChaCha20.new(key=b("5") * 32, nonce=b("6") * 8)
+        c2 = ChaCha20.new(key=b("5") * 32, nonce=b("6") * 8)
+        ct = c1.encrypt(pt)
+        self.assertEqual(c2.decrypt(ct), pt)
+
+        self.assertEqual(c1.encrypt(b("")), b(""))
+        self.assertEqual(c2.decrypt(b("")), b(""))
+
+    def test_streaming(self):
+        """Verify that an arbitrary number of bytes can be encrypted/decrypted"""
+        from Crypto.Hash import SHA1
+
+        segments = (1, 3, 5, 7, 11, 17, 23)
+        total = sum(segments)
+
+        pt = b("")
+        while len(pt) < total:
+            pt += SHA1.new(pt).digest()
+
+        cipher1 = ChaCha20.new(key=b("7") * 32, nonce=b("t") * 8)
+        ct = cipher1.encrypt(pt)
+
+        cipher2 = ChaCha20.new(key=b("7") * 32, nonce=b("t") * 8)
+        cipher3 = ChaCha20.new(key=b("7") * 32, nonce=b("t") * 8)
+        idx = 0
+        for segment in segments:
+            self.assertEqual(cipher2.decrypt(ct[idx:idx+segment]), pt[idx:idx+segment])
+            self.assertEqual(cipher3.encrypt(pt[idx:idx+segment]), ct[idx:idx+segment])
+            idx += segment
+
+    def test_seek(self):
+        cipher1 = ChaCha20.new(key=b("9") * 32, nonce=b("e") * 8)
+
+        offset = 64 * 900 + 7
+        pt = b("1") * 64
+
+        cipher1.encrypt(b("0") * offset)
+        ct1 = cipher1.encrypt(pt)
+
+        cipher2 = ChaCha20.new(key=b("9") * 32, nonce=b("e") * 8)
+        cipher2.seek(offset)
+        ct2 = cipher2.encrypt(pt)
+
+        self.assertEqual(ct1, ct2)
+
+    def test_seek_tv(self):
+        # Test Vector #4, A.1 from
+        # http://tools.ietf.org/html/draft-nir-cfrg-chacha20-poly1305-04
+        key = bchr(0) + bchr(255) + bchr(0) * 30
+        nonce = bchr(0) * 8
+        cipher = ChaCha20.new(key=key, nonce=nonce)
+        cipher.seek(64 * 2)
+        expected_key_stream = unhexlify(b(
+            "72d54dfbf12ec44b362692df94137f32"
+            "8fea8da73990265ec1bbbea1ae9af0ca"
+            "13b25aa26cb4a648cb9b9d1be65b2c09"
+            "24a66c54d545ec1b7374f4872e99f096"
+            ))
+        ct = cipher.encrypt(bchr(0) * len(expected_key_stream))
+        self.assertEqual(expected_key_stream, ct)
+
+    def test_rfc7539(self):
+        # from https://tools.ietf.org/html/rfc7539 Annex A.1
+        # Each item is: key, nonce, block #, plaintext, ciphertext
+        tvs = [
+                # Test Vector #1
+                (
+                    "00"*32,
+                    "00"*12,
+                    0,
+                    "00"*16*4,
+                    "76b8e0ada0f13d90405d6ae55386bd28"
+                    "bdd219b8a08ded1aa836efcc8b770dc7"
+                    "da41597c5157488d7724e03fb8d84a37"
+                    "6a43b8f41518a11cc387b669b2ee6586"
+                ),
+                # Test Vector #2
+                (
+                    "00"*31 + "01",
+                    "00"*11 + "02",
+                    1,
+                    "416e79207375626d697373696f6e2074"
+                    "6f20746865204945544620696e74656e"
+                    "6465642062792074686520436f6e7472"
+                    "696275746f7220666f72207075626c69"
+                    "636174696f6e20617320616c6c206f72"
+                    "2070617274206f6620616e2049455446"
+                    "20496e7465726e65742d447261667420"
+                    "6f722052464320616e6420616e792073"
+                    "746174656d656e74206d616465207769"
+                    "7468696e2074686520636f6e74657874"
+                    "206f6620616e20494554462061637469"
+                    "7669747920697320636f6e7369646572"
+                    "656420616e20224945544620436f6e74"
+                    "7269627574696f6e222e205375636820"
+                    "73746174656d656e747320696e636c75"
+                    "6465206f72616c2073746174656d656e"
+                    "747320696e2049455446207365737369"
+                    "6f6e732c2061732077656c6c20617320"
+                    "7772697474656e20616e6420656c6563"
+                    "74726f6e696320636f6d6d756e696361"
+                    "74696f6e73206d61646520617420616e"
+                    "792074696d65206f7220706c6163652c"
+                    "20776869636820617265206164647265"
+                    "7373656420746f",
+                    "a3fbf07df3fa2fde4f376ca23e827370"
+                    "41605d9f4f4f57bd8cff2c1d4b7955ec"
+                    "2a97948bd3722915c8f3d337f7d37005"
+                    "0e9e96d647b7c39f56e031ca5eb6250d"
+                    "4042e02785ececfa4b4bb5e8ead0440e"
+                    "20b6e8db09d881a7c6132f420e527950"
+                    "42bdfa7773d8a9051447b3291ce1411c"
+                    "680465552aa6c405b7764d5e87bea85a"
+                    "d00f8449ed8f72d0d662ab052691ca66"
+                    "424bc86d2df80ea41f43abf937d3259d"
+                    "c4b2d0dfb48a6c9139ddd7f76966e928"
+                    "e635553ba76c5c879d7b35d49eb2e62b"
+                    "0871cdac638939e25e8a1e0ef9d5280f"
+                    "a8ca328b351c3c765989cbcf3daa8b6c"
+                    "cc3aaf9f3979c92b3720fc88dc95ed84"
+                    "a1be059c6499b9fda236e7e818b04b0b"
+                    "c39c1e876b193bfe5569753f88128cc0"
+                    "8aaa9b63d1a16f80ef2554d7189c411f"
+                    "5869ca52c5b83fa36ff216b9c1d30062"
+                    "bebcfd2dc5bce0911934fda79a86f6e6"
+                    "98ced759c3ff9b6477338f3da4f9cd85"
+                    "14ea9982ccafb341b2384dd902f3d1ab"
+                    "7ac61dd29c6f21ba5b862f3730e37cfd"
+                    "c4fd806c22f221"
+                ),
+                # Test Vector #3
+                (
+                    "1c9240a5eb55d38af333888604f6b5f0"
+                    "473917c1402b80099dca5cbc207075c0",
+                    "00"*11 + "02",
+                    42,
+                    "2754776173206272696c6c69672c2061"
+                    "6e642074686520736c6974687920746f"
+                    "7665730a446964206779726520616e64"
+                    "2067696d626c6520696e207468652077"
+                    "6162653a0a416c6c206d696d73792077"
+                    "6572652074686520626f726f676f7665"
+                    "732c0a416e6420746865206d6f6d6520"
+                    "7261746873206f757467726162652e",
+                    "62e6347f95ed87a45ffae7426f27a1df"
+                    "5fb69110044c0d73118effa95b01e5cf"
+                    "166d3df2d721caf9b21e5fb14c616871"
+                    "fd84c54f9d65b283196c7fe4f60553eb"
+                    "f39c6402c42234e32a356b3e764312a6"
+                    "1a5532055716ead6962568f87d3f3f77"
+                    "04c6a8d1bcd1bf4d50d6154b6da731b1"
+                    "87b58dfd728afa36757a797ac188d1"
+                )
+        ]
+
+        for tv in tvs:
+            key = unhexlify(tv[0])
+            nonce = unhexlify(tv[1])
+            offset = tv[2] * 64
+            pt = unhexlify(tv[3])
+            ct_expect = unhexlify(tv[4])
+
+            cipher = ChaCha20.new(key=key, nonce=nonce)
+            if offset != 0:
+                cipher.seek(offset)
+            ct = cipher.encrypt(pt)
+            assert(ct == ct_expect)
+
+
+class XChaCha20Test(unittest.TestCase):
+
+    # From https://tools.ietf.org/html/draft-arciszewski-xchacha-03
+
+    def test_hchacha20(self):
+        # Section 2.2.1
+
+        from Crypto.Cipher.ChaCha20 import _HChaCha20
+
+        key = b"00:01:02:03:04:05:06:07:08:09:0a:0b:0c:0d:0e:0f:10:11:12:13:14:15:16:17:18:19:1a:1b:1c:1d:1e:1f"
+        key = unhexlify(key.replace(b":", b""))
+
+        nonce = b"00:00:00:09:00:00:00:4a:00:00:00:00:31:41:59:27"
+        nonce = unhexlify(nonce.replace(b":", b""))
+
+        subkey = _HChaCha20(key, nonce)
+
+        expected = b"82413b42 27b27bfe d30e4250 8a877d73 a0f9e4d5 8a74a853 c12ec413 26d3ecdc"
+        expected = unhexlify(expected.replace(b" ", b""))
+
+        self.assertEqual(subkey, expected)
+
+    def test_nonce(self):
+        key = b'A' * 32
+        nonce = b'P' * 24
+        cipher = ChaCha20.new(key=key, nonce=nonce)
+        self.assertEqual(nonce, cipher.nonce)
+
+    def test_encrypt(self):
+        # Section A.3.2
+
+        pt = b"""
+                5468652064686f6c65202870726f6e6f756e6365642022646f6c652229206973
+                20616c736f206b6e6f776e2061732074686520417369617469632077696c6420
+                646f672c2072656420646f672c20616e642077686973746c696e6720646f672e
+                2049742069732061626f7574207468652073697a65206f662061204765726d61
+                6e20736865706865726420627574206c6f6f6b73206d6f7265206c696b652061
+                206c6f6e672d6c656767656420666f782e205468697320686967686c7920656c
+                757369766520616e6420736b696c6c6564206a756d70657220697320636c6173
+                736966696564207769746820776f6c7665732c20636f796f7465732c206a6163
+                6b616c732c20616e6420666f78657320696e20746865207461786f6e6f6d6963
+                2066616d696c792043616e696461652e"""
+        pt = unhexlify(pt.replace(b"\n", b"").replace(b" ", b""))
+
+        key = unhexlify(b"808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f")
+        iv = unhexlify(b"404142434445464748494a4b4c4d4e4f5051525354555658")
+
+        ct = b"""
+                7d0a2e6b7f7c65a236542630294e063b7ab9b555a5d5149aa21e4ae1e4fbce87
+                ecc8e08a8b5e350abe622b2ffa617b202cfad72032a3037e76ffdcdc4376ee05
+                3a190d7e46ca1de04144850381b9cb29f051915386b8a710b8ac4d027b8b050f
+                7cba5854e028d564e453b8a968824173fc16488b8970cac828f11ae53cabd201
+                12f87107df24ee6183d2274fe4c8b1485534ef2c5fbc1ec24bfc3663efaa08bc
+                047d29d25043532db8391a8a3d776bf4372a6955827ccb0cdd4af403a7ce4c63
+                d595c75a43e045f0cce1f29c8b93bd65afc5974922f214a40b7c402cdb91ae73
+                c0b63615cdad0480680f16515a7ace9d39236464328a37743ffc28f4ddb324f4
+                d0f5bbdc270c65b1749a6efff1fbaa09536175ccd29fb9e6057b307320d31683
+                8a9c71f70b5b5907a66f7ea49aadc409"""
+        ct = unhexlify(ct.replace(b"\n", b"").replace(b" ", b""))
+
+        cipher = ChaCha20.new(key=key, nonce=iv)
+        cipher.seek(64) # Counter = 1
+        ct_test = cipher.encrypt(pt)
+        self.assertEqual(ct, ct_test)
+
+
+class ByteArrayTest(unittest.TestCase):
+    """Verify we can encrypt or decrypt bytearrays"""
+
+    def runTest(self):
+
+        data = b"0123"
+        key = b"9" * 32
+        nonce = b"t" * 8
+
+        # Encryption
+        data_ba = bytearray(data)
+        key_ba = bytearray(key)
+        nonce_ba = bytearray(nonce)
+
+        cipher1 = ChaCha20.new(key=key, nonce=nonce)
+        ct = cipher1.encrypt(data)
+
+        cipher2 = ChaCha20.new(key=key_ba, nonce=nonce_ba)
+        key_ba[:1] = b'\xFF'
+        nonce_ba[:1] = b'\xFF'
+        ct_test = cipher2.encrypt(data_ba)
+
+        self.assertEqual(ct, ct_test)
+        self.assertEqual(cipher1.nonce, cipher2.nonce)
+
+        # Decryption
+        key_ba = bytearray(key)
+        nonce_ba = bytearray(nonce)
+        ct_ba = bytearray(ct)
+
+        cipher3 = ChaCha20.new(key=key_ba, nonce=nonce_ba)
+        key_ba[:1] = b'\xFF'
+        nonce_ba[:1] = b'\xFF'
+        pt_test = cipher3.decrypt(ct_ba)
+
+        self.assertEqual(data, pt_test)
+
+
+class MemoryviewTest(unittest.TestCase):
+    """Verify we can encrypt or decrypt bytearrays"""
+
+    def runTest(self):
+
+        data = b"0123"
+        key = b"9" * 32
+        nonce = b"t" * 8
+
+        # Encryption
+        data_mv = memoryview(bytearray(data))
+        key_mv = memoryview(bytearray(key))
+        nonce_mv = memoryview(bytearray(nonce))
+
+        cipher1 = ChaCha20.new(key=key, nonce=nonce)
+        ct = cipher1.encrypt(data)
+
+        cipher2 = ChaCha20.new(key=key_mv, nonce=nonce_mv)
+        key_mv[:1] = b'\xFF'
+        nonce_mv[:1] = b'\xFF'
+        ct_test = cipher2.encrypt(data_mv)
+
+        self.assertEqual(ct, ct_test)
+        self.assertEqual(cipher1.nonce, cipher2.nonce)
+
+        # Decryption
+        key_mv = memoryview(bytearray(key))
+        nonce_mv = memoryview(bytearray(nonce))
+        ct_mv = memoryview(bytearray(ct))
+
+        cipher3 = ChaCha20.new(key=key_mv, nonce=nonce_mv)
+        key_mv[:1] = b'\xFF'
+        nonce_mv[:1] = b'\xFF'
+        pt_test = cipher3.decrypt(ct_mv)
+
+        self.assertEqual(data, pt_test)
+
+
+class ChaCha20_AGL_NIR(unittest.TestCase):
+
+    # From http://tools.ietf.org/html/draft-agl-tls-chacha20poly1305-04
+    # and http://tools.ietf.org/html/draft-nir-cfrg-chacha20-poly1305-04
+    tv = [
+          ( "00" * 32,
+            "00" * 8,
+            "76b8e0ada0f13d90405d6ae55386bd28bdd219b8a08ded1aa836efcc"
+            "8b770dc7da41597c5157488d7724e03fb8d84a376a43b8f41518a11c"
+            "c387b669b2ee6586"
+            "9f07e7be5551387a98ba977c732d080d"
+            "cb0f29a048e3656912c6533e32ee7aed"
+            "29b721769ce64e43d57133b074d839d5"
+            "31ed1f28510afb45ace10a1f4b794d6f"
+          ),
+          ( "00" * 31 + "01",
+            "00" * 8,
+            "4540f05a9f1fb296d7736e7b208e3c96eb4fe1834688d2604f450952"
+            "ed432d41bbe2a0b6ea7566d2a5d1e7e20d42af2c53d792b1c43fea81"
+            "7e9ad275ae546963"
+            "3aeb5224ecf849929b9d828db1ced4dd"
+            "832025e8018b8160b82284f3c949aa5a"
+            "8eca00bbb4a73bdad192b5c42f73f2fd"
+            "4e273644c8b36125a64addeb006c13a0"
+          ),
+          ( "00" * 32,
+            "00" * 7 + "01",
+            "de9cba7bf3d69ef5e786dc63973f653a0b49e015adbff7134fcb7df1"
+            "37821031e85a050278a7084527214f73efc7fa5b5277062eb7a0433e"
+            "445f41e3"
+          ),
+          ( "00" * 32,
+            "01" + "00" * 7,
+            "ef3fdfd6c61578fbf5cf35bd3dd33b8009631634d21e42ac33960bd1"
+            "38e50d32111e4caf237ee53ca8ad6426194a88545ddc497a0b466e7d"
+            "6bbdb0041b2f586b"
+          ),
+          ( "000102030405060708090a0b0c0d0e0f101112131415161718191a1b"
+            "1c1d1e1f",
+            "0001020304050607",
+            "f798a189f195e66982105ffb640bb7757f579da31602fc93ec01ac56"
+            "f85ac3c134a4547b733b46413042c9440049176905d3be59ea1c53f1"
+            "5916155c2be8241a38008b9a26bc35941e2444177c8ade6689de9526"
+            "4986d95889fb60e84629c9bd9a5acb1cc118be563eb9b3a4a472f82e"
+            "09a7e778492b562ef7130e88dfe031c79db9d4f7c7a899151b9a4750"
+            "32b63fc385245fe054e3dd5a97a5f576fe064025d3ce042c566ab2c5"
+            "07b138db853e3d6959660996546cc9c4a6eafdc777c040d70eaf46f7"
+            "6dad3979e5c5360c3317166a1c894c94a371876a94df7628fe4eaaf2"
+            "ccb27d5aaae0ad7ad0f9d4b6ad3b54098746d4524d38407a6deb3ab7"
+            "8fab78c9"
+          ),
+          ( "00" * 32,
+            "00" * 7 + "02",
+            "c2c64d378cd536374ae204b9ef933fcd"
+            "1a8b2288b3dfa49672ab765b54ee27c7"
+            "8a970e0e955c14f3a88e741b97c286f7"
+            "5f8fc299e8148362fa198a39531bed6d"
+          ),
+         ]
+
+    def runTest(self):
+        for (key, nonce, stream) in self.tv:
+            c = ChaCha20.new(key=unhexlify(b(key)), nonce=unhexlify(b(nonce)))
+            ct = unhexlify(b(stream))
+            pt = b("\x00") * len(ct)
+            self.assertEqual(c.encrypt(pt), ct)
+
+
+class TestOutput(unittest.TestCase):
+
+    def runTest(self):
+        # Encrypt/Decrypt data and test output parameter
+
+        key = b'4' * 32
+        nonce = b'5' * 8
+        cipher = ChaCha20.new(key=key, nonce=nonce)
+
+        pt = b'5' * 300
+        ct = cipher.encrypt(pt)
+
+        output = bytearray(len(pt))
+        cipher = ChaCha20.new(key=key, nonce=nonce)
+        res = cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+        self.assertEqual(res, None)
+
+        cipher = ChaCha20.new(key=key, nonce=nonce)
+        res = cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+        self.assertEqual(res, None)
+
+        output = memoryview(bytearray(len(pt)))
+        cipher = ChaCha20.new(key=key, nonce=nonce)
+        cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+
+        cipher = ChaCha20.new(key=key, nonce=nonce)
+        cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+
+        cipher = ChaCha20.new(key=key, nonce=nonce)
+        self.assertRaises(TypeError, cipher.encrypt, pt, output=b'0'*len(pt))
+
+        cipher = ChaCha20.new(key=key, nonce=nonce)
+        self.assertRaises(TypeError, cipher.decrypt, ct, output=b'0'*len(pt))
+
+        shorter_output = bytearray(len(pt) - 1)
+
+        cipher = ChaCha20.new(key=key, nonce=nonce)
+        self.assertRaises(ValueError, cipher.encrypt, pt, output=shorter_output)
+
+        cipher = ChaCha20.new(key=key, nonce=nonce)
+        self.assertRaises(ValueError, cipher.decrypt, ct, output=shorter_output)
+
+
+def get_tests(config={}):
+    tests = []
+    tests += list_test_cases(ChaCha20Test)
+    tests += list_test_cases(XChaCha20Test)
+    tests.append(ChaCha20_AGL_NIR())
+    tests.append(ByteArrayTest())
+    tests.append(MemoryviewTest())
+    tests.append(TestOutput())
+
+    return tests
+
+
+if __name__ == '__main__':
+    import unittest
+    suite = lambda: unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_ChaCha20_Poly1305.py

@@ -0,0 +1,776 @@
+# ===================================================================
+#
+# Copyright (c) 2018, Helder Eijs <helderijs@gmail.com>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+# ===================================================================
+
+import unittest
+from binascii import unhexlify
+
+from Crypto.SelfTest.st_common import list_test_cases
+from Crypto.SelfTest.loader import load_test_vectors_wycheproof
+from Crypto.Util.py3compat import tobytes
+from Crypto.Cipher import ChaCha20_Poly1305
+from Crypto.Hash import SHAKE128
+
+from Crypto.Util.strxor import strxor
+
+
+def get_tag_random(tag, length):
+    return SHAKE128.new(data=tobytes(tag)).read(length)
+
+
+class ChaCha20Poly1305Tests(unittest.TestCase):
+
+    key_256 = get_tag_random("key_256", 32)
+    nonce_96 = get_tag_random("nonce_96", 12)
+    data_128 = get_tag_random("data_128", 16)
+
+    def test_loopback(self):
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        pt = get_tag_random("plaintext", 16 * 100)
+        ct = cipher.encrypt(pt)
+
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        pt2 = cipher.decrypt(ct)
+        self.assertEqual(pt, pt2)
+
+    def test_nonce(self):
+        # Nonce can only be 8 or 12 bytes
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=b'H' * 8)
+        self.assertEqual(len(cipher.nonce), 8)
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=b'H' * 12)
+        self.assertEqual(len(cipher.nonce), 12)
+
+        # If not passed, the nonce is created randomly
+        cipher = ChaCha20_Poly1305.new(key=self.key_256)
+        nonce1 = cipher.nonce
+        cipher = ChaCha20_Poly1305.new(key=self.key_256)
+        nonce2 = cipher.nonce
+        self.assertEqual(len(nonce1), 12)
+        self.assertNotEqual(nonce1, nonce2)
+
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        ct = cipher.encrypt(self.data_128)
+
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        self.assertEqual(ct, cipher.encrypt(self.data_128))
+
+    def test_nonce_must_be_bytes(self):
+        self.assertRaises(TypeError,
+                          ChaCha20_Poly1305.new,
+                          key=self.key_256,
+                          nonce=u'test12345678')
+
+    def test_nonce_length(self):
+        # nonce can only be 8 or 12 bytes long
+        self.assertRaises(ValueError,
+                          ChaCha20_Poly1305.new,
+                          key=self.key_256,
+                          nonce=b'0' * 7)
+        self.assertRaises(ValueError,
+                          ChaCha20_Poly1305.new,
+                          key=self.key_256,
+                          nonce=b'')
+
+    def test_block_size(self):
+        # Not based on block ciphers
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        self.assertFalse(hasattr(cipher, 'block_size'))
+
+    def test_nonce_attribute(self):
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        self.assertEqual(cipher.nonce, self.nonce_96)
+
+        # By default, a 12 bytes long nonce is randomly generated
+        nonce1 = ChaCha20_Poly1305.new(key=self.key_256).nonce
+        nonce2 = ChaCha20_Poly1305.new(key=self.key_256).nonce
+        self.assertEqual(len(nonce1), 12)
+        self.assertNotEqual(nonce1, nonce2)
+
+    def test_unknown_parameters(self):
+        self.assertRaises(TypeError,
+                          ChaCha20_Poly1305.new,
+                          key=self.key_256,
+                          param=9)
+
+    def test_null_encryption_decryption(self):
+        for func in "encrypt", "decrypt":
+            cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                           nonce=self.nonce_96)
+            result = getattr(cipher, func)(b"")
+            self.assertEqual(result, b"")
+
+    def test_either_encrypt_or_decrypt(self):
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        cipher.encrypt(b"")
+        self.assertRaises(TypeError, cipher.decrypt, b"")
+
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        cipher.decrypt(b"")
+        self.assertRaises(TypeError, cipher.encrypt, b"")
+
+    def test_data_must_be_bytes(self):
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.encrypt, u'test1234567890-*')
+
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.decrypt, u'test1234567890-*')
+
+    def test_mac_len(self):
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        _, mac = cipher.encrypt_and_digest(self.data_128)
+        self.assertEqual(len(mac), 16)
+
+    def test_invalid_mac(self):
+        from Crypto.Util.strxor import strxor_c
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        ct, mac = cipher.encrypt_and_digest(self.data_128)
+
+        invalid_mac = strxor_c(mac, 0x01)
+
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        self.assertRaises(ValueError, cipher.decrypt_and_verify, ct,
+                          invalid_mac)
+
+    def test_hex_mac(self):
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        mac_hex = cipher.hexdigest()
+        self.assertEqual(cipher.digest(), unhexlify(mac_hex))
+
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        cipher.hexverify(mac_hex)
+
+    def test_message_chunks(self):
+        # Validate that both associated data and plaintext/ciphertext
+        # can be broken up in chunks of arbitrary length
+
+        auth_data = get_tag_random("authenticated data", 127)
+        plaintext = get_tag_random("plaintext", 127)
+
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        cipher.update(auth_data)
+        ciphertext, ref_mac = cipher.encrypt_and_digest(plaintext)
+
+        def break_up(data, chunk_length):
+            return [data[i:i+chunk_length] for i in range(0, len(data),
+                    chunk_length)]
+
+        # Encryption
+        for chunk_length in 1, 2, 3, 7, 10, 13, 16, 40, 80, 128:
+
+            cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                           nonce=self.nonce_96)
+
+            for chunk in break_up(auth_data, chunk_length):
+                cipher.update(chunk)
+            pt2 = b""
+            for chunk in break_up(ciphertext, chunk_length):
+                pt2 += cipher.decrypt(chunk)
+            self.assertEqual(plaintext, pt2)
+            cipher.verify(ref_mac)
+
+        # Decryption
+        for chunk_length in 1, 2, 3, 7, 10, 13, 16, 40, 80, 128:
+
+            cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                           nonce=self.nonce_96)
+
+            for chunk in break_up(auth_data, chunk_length):
+                cipher.update(chunk)
+            ct2 = b""
+            for chunk in break_up(plaintext, chunk_length):
+                ct2 += cipher.encrypt(chunk)
+            self.assertEqual(ciphertext, ct2)
+            self.assertEqual(cipher.digest(), ref_mac)
+
+    def test_bytearray(self):
+
+        # Encrypt
+        key_ba = bytearray(self.key_256)
+        nonce_ba = bytearray(self.nonce_96)
+        header_ba = bytearray(self.data_128)
+        data_ba = bytearray(self.data_128)
+
+        cipher1 = ChaCha20_Poly1305.new(key=self.key_256,
+                                        nonce=self.nonce_96)
+        cipher1.update(self.data_128)
+        ct = cipher1.encrypt(self.data_128)
+        tag = cipher1.digest()
+
+        cipher2 = ChaCha20_Poly1305.new(key=self.key_256,
+                                        nonce=self.nonce_96)
+        key_ba[:3] = b'\xFF\xFF\xFF'
+        nonce_ba[:3] = b'\xFF\xFF\xFF'
+        cipher2.update(header_ba)
+        header_ba[:3] = b'\xFF\xFF\xFF'
+        ct_test = cipher2.encrypt(data_ba)
+        data_ba[:3] = b'\x99\x99\x99'
+        tag_test = cipher2.digest()
+
+        self.assertEqual(ct, ct_test)
+        self.assertEqual(tag, tag_test)
+        self.assertEqual(cipher1.nonce, cipher2.nonce)
+
+        # Decrypt
+        key_ba = bytearray(self.key_256)
+        nonce_ba = bytearray(self.nonce_96)
+        header_ba = bytearray(self.data_128)
+        ct_ba = bytearray(ct)
+        tag_ba = bytearray(tag)
+        del data_ba
+
+        cipher3 = ChaCha20_Poly1305.new(key=self.key_256,
+                                        nonce=self.nonce_96)
+        key_ba[:3] = b'\xFF\xFF\xFF'
+        nonce_ba[:3] = b'\xFF\xFF\xFF'
+        cipher3.update(header_ba)
+        header_ba[:3] = b'\xFF\xFF\xFF'
+        pt_test = cipher3.decrypt(ct_ba)
+        ct_ba[:3] = b'\xFF\xFF\xFF'
+        cipher3.verify(tag_ba)
+
+        self.assertEqual(pt_test, self.data_128)
+
+    def test_memoryview(self):
+
+        # Encrypt
+        key_mv = memoryview(bytearray(self.key_256))
+        nonce_mv = memoryview(bytearray(self.nonce_96))
+        header_mv = memoryview(bytearray(self.data_128))
+        data_mv = memoryview(bytearray(self.data_128))
+
+        cipher1 = ChaCha20_Poly1305.new(key=self.key_256,
+                                        nonce=self.nonce_96)
+        cipher1.update(self.data_128)
+        ct = cipher1.encrypt(self.data_128)
+        tag = cipher1.digest()
+
+        cipher2 = ChaCha20_Poly1305.new(key=self.key_256,
+                                        nonce=self.nonce_96)
+        key_mv[:3] = b'\xFF\xFF\xFF'
+        nonce_mv[:3] = b'\xFF\xFF\xFF'
+        cipher2.update(header_mv)
+        header_mv[:3] = b'\xFF\xFF\xFF'
+        ct_test = cipher2.encrypt(data_mv)
+        data_mv[:3] = b'\x99\x99\x99'
+        tag_test = cipher2.digest()
+
+        self.assertEqual(ct, ct_test)
+        self.assertEqual(tag, tag_test)
+        self.assertEqual(cipher1.nonce, cipher2.nonce)
+
+        # Decrypt
+        key_mv = memoryview(bytearray(self.key_256))
+        nonce_mv = memoryview(bytearray(self.nonce_96))
+        header_mv = memoryview(bytearray(self.data_128))
+        ct_mv = memoryview(bytearray(ct))
+        tag_mv = memoryview(bytearray(tag))
+        del data_mv
+
+        cipher3 = ChaCha20_Poly1305.new(key=self.key_256,
+                                        nonce=self.nonce_96)
+        key_mv[:3] = b'\xFF\xFF\xFF'
+        nonce_mv[:3] = b'\xFF\xFF\xFF'
+        cipher3.update(header_mv)
+        header_mv[:3] = b'\xFF\xFF\xFF'
+        pt_test = cipher3.decrypt(ct_mv)
+        ct_mv[:3] = b'\x99\x99\x99'
+        cipher3.verify(tag_mv)
+
+        self.assertEqual(pt_test, self.data_128)
+
+
+class XChaCha20Poly1305Tests(unittest.TestCase):
+
+    def test_nonce(self):
+        # Nonce can only be 24 bytes
+        cipher = ChaCha20_Poly1305.new(key=b'Y' * 32,
+                                       nonce=b'H' * 24)
+        self.assertEqual(len(cipher.nonce), 24)
+        self.assertEqual(cipher.nonce, b'H' * 24)
+
+    def test_encrypt(self):
+        # From https://tools.ietf.org/html/draft-arciszewski-xchacha-03
+        # Section A.3.1
+
+        pt = b"""
+                4c616469657320616e642047656e746c656d656e206f662074686520636c6173
+                73206f66202739393a204966204920636f756c64206f6666657220796f75206f
+                6e6c79206f6e652074697020666f7220746865206675747572652c2073756e73
+                637265656e20776f756c642062652069742e"""
+        pt = unhexlify(pt.replace(b"\n", b"").replace(b" ", b""))
+
+        aad = unhexlify(b"50515253c0c1c2c3c4c5c6c7")
+        key = unhexlify(b"808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f")
+        iv = unhexlify(b"404142434445464748494a4b4c4d4e4f5051525354555657")
+
+        ct = b"""
+                bd6d179d3e83d43b9576579493c0e939572a1700252bfaccbed2902c21396cbb
+                731c7f1b0b4aa6440bf3a82f4eda7e39ae64c6708c54c216cb96b72e1213b452
+                2f8c9ba40db5d945b11b69b982c1bb9e3f3fac2bc369488f76b2383565d3fff9
+                21f9664c97637da9768812f615c68b13b52e"""
+        ct = unhexlify(ct.replace(b"\n", b"").replace(b" ", b""))
+
+        tag = unhexlify(b"c0875924c1c7987947deafd8780acf49")
+
+        cipher = ChaCha20_Poly1305.new(key=key, nonce=iv)
+        cipher.update(aad)
+        ct_test, tag_test = cipher.encrypt_and_digest(pt)
+
+        self.assertEqual(ct, ct_test)
+        self.assertEqual(tag, tag_test)
+
+        cipher = ChaCha20_Poly1305.new(key=key, nonce=iv)
+        cipher.update(aad)
+        cipher.decrypt_and_verify(ct, tag)
+
+
+class ChaCha20Poly1305FSMTests(unittest.TestCase):
+
+    key_256 = get_tag_random("key_256", 32)
+    nonce_96 = get_tag_random("nonce_96", 12)
+    data_128 = get_tag_random("data_128", 16)
+
+    def test_valid_init_encrypt_decrypt_digest_verify(self):
+        # No authenticated data, fixed plaintext
+        # Verify path INIT->ENCRYPT->DIGEST
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        ct = cipher.encrypt(self.data_128)
+        mac = cipher.digest()
+
+        # Verify path INIT->DECRYPT->VERIFY
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        cipher.decrypt(ct)
+        cipher.verify(mac)
+
+    def test_valid_init_update_digest_verify(self):
+        # No plaintext, fixed authenticated data
+        # Verify path INIT->UPDATE->DIGEST
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        cipher.update(self.data_128)
+        mac = cipher.digest()
+
+        # Verify path INIT->UPDATE->VERIFY
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        cipher.update(self.data_128)
+        cipher.verify(mac)
+
+    def test_valid_full_path(self):
+        # Fixed authenticated data, fixed plaintext
+        # Verify path INIT->UPDATE->ENCRYPT->DIGEST
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        cipher.update(self.data_128)
+        ct = cipher.encrypt(self.data_128)
+        mac = cipher.digest()
+
+        # Verify path INIT->UPDATE->DECRYPT->VERIFY
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        cipher.update(self.data_128)
+        cipher.decrypt(ct)
+        cipher.verify(mac)
+
+    def test_valid_init_digest(self):
+        # Verify path INIT->DIGEST
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        cipher.digest()
+
+    def test_valid_init_verify(self):
+        # Verify path INIT->VERIFY
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        mac = cipher.digest()
+
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        cipher.verify(mac)
+
+    def test_valid_multiple_encrypt_or_decrypt(self):
+        for method_name in "encrypt", "decrypt":
+            for auth_data in (None, b"333", self.data_128,
+                              self.data_128 + b"3"):
+                cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                               nonce=self.nonce_96)
+                if auth_data is not None:
+                    cipher.update(auth_data)
+                method = getattr(cipher, method_name)
+                method(self.data_128)
+                method(self.data_128)
+                method(self.data_128)
+                method(self.data_128)
+
+    def test_valid_multiple_digest_or_verify(self):
+        # Multiple calls to digest
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        cipher.update(self.data_128)
+        first_mac = cipher.digest()
+        for x in range(4):
+            self.assertEqual(first_mac, cipher.digest())
+
+        # Multiple calls to verify
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        cipher.update(self.data_128)
+        for x in range(5):
+            cipher.verify(first_mac)
+
+    def test_valid_encrypt_and_digest_decrypt_and_verify(self):
+        # encrypt_and_digest
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        cipher.update(self.data_128)
+        ct, mac = cipher.encrypt_and_digest(self.data_128)
+
+        # decrypt_and_verify
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        cipher.update(self.data_128)
+        pt = cipher.decrypt_and_verify(ct, mac)
+        self.assertEqual(self.data_128, pt)
+
+    def test_invalid_mixing_encrypt_decrypt(self):
+        # Once per method, with or without assoc. data
+        for method1_name, method2_name in (("encrypt", "decrypt"),
+                                           ("decrypt", "encrypt")):
+            for assoc_data_present in (True, False):
+                cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                               nonce=self.nonce_96)
+                if assoc_data_present:
+                    cipher.update(self.data_128)
+                getattr(cipher, method1_name)(self.data_128)
+                self.assertRaises(TypeError, getattr(cipher, method2_name),
+                                  self.data_128)
+
+    def test_invalid_encrypt_or_update_after_digest(self):
+        for method_name in "encrypt", "update":
+            cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                           nonce=self.nonce_96)
+            cipher.encrypt(self.data_128)
+            cipher.digest()
+            self.assertRaises(TypeError, getattr(cipher, method_name),
+                              self.data_128)
+
+            cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                           nonce=self.nonce_96)
+            cipher.encrypt_and_digest(self.data_128)
+
+    def test_invalid_decrypt_or_update_after_verify(self):
+        cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                       nonce=self.nonce_96)
+        ct = cipher.encrypt(self.data_128)
+        mac = cipher.digest()
+
+        for method_name in "decrypt", "update":
+            cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                           nonce=self.nonce_96)
+            cipher.decrypt(ct)
+            cipher.verify(mac)
+            self.assertRaises(TypeError, getattr(cipher, method_name),
+                              self.data_128)
+
+            cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                           nonce=self.nonce_96)
+            cipher.decrypt(ct)
+            cipher.verify(mac)
+            self.assertRaises(TypeError, getattr(cipher, method_name),
+                              self.data_128)
+
+            cipher = ChaCha20_Poly1305.new(key=self.key_256,
+                                           nonce=self.nonce_96)
+            cipher.decrypt_and_verify(ct, mac)
+            self.assertRaises(TypeError, getattr(cipher, method_name),
+                              self.data_128)
+
+
+def compact(x):
+    return unhexlify(x.replace(" ", "").replace(":", ""))
+
+
+class TestVectorsRFC(unittest.TestCase):
+    """Test cases from RFC7539"""
+
+    # AAD, PT, CT, MAC, KEY, NONCE
+    test_vectors_hex = [
+        ( '50 51 52 53 c0 c1 c2 c3 c4 c5 c6 c7',
+          '4c 61 64 69 65 73 20 61 6e 64 20 47 65 6e 74 6c'
+          '65 6d 65 6e 20 6f 66 20 74 68 65 20 63 6c 61 73'
+          '73 20 6f 66 20 27 39 39 3a 20 49 66 20 49 20 63'
+          '6f 75 6c 64 20 6f 66 66 65 72 20 79 6f 75 20 6f'
+          '6e 6c 79 20 6f 6e 65 20 74 69 70 20 66 6f 72 20'
+          '74 68 65 20 66 75 74 75 72 65 2c 20 73 75 6e 73'
+          '63 72 65 65 6e 20 77 6f 75 6c 64 20 62 65 20 69'
+          '74 2e',
+          'd3 1a 8d 34 64 8e 60 db 7b 86 af bc 53 ef 7e c2'
+          'a4 ad ed 51 29 6e 08 fe a9 e2 b5 a7 36 ee 62 d6'
+          '3d be a4 5e 8c a9 67 12 82 fa fb 69 da 92 72 8b'
+          '1a 71 de 0a 9e 06 0b 29 05 d6 a5 b6 7e cd 3b 36'
+          '92 dd bd 7f 2d 77 8b 8c 98 03 ae e3 28 09 1b 58'
+          'fa b3 24 e4 fa d6 75 94 55 85 80 8b 48 31 d7 bc'
+          '3f f4 de f0 8e 4b 7a 9d e5 76 d2 65 86 ce c6 4b'
+          '61 16',
+          '1a:e1:0b:59:4f:09:e2:6a:7e:90:2e:cb:d0:60:06:91',
+          '80 81 82 83 84 85 86 87 88 89 8a 8b 8c 8d 8e 8f'
+          '90 91 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f',
+          '07 00 00 00' + '40 41 42 43 44 45 46 47',
+        ),
+        ( 'f3 33 88 86 00 00 00 00 00 00 4e 91',
+          '49 6e 74 65 72 6e 65 74 2d 44 72 61 66 74 73 20'
+          '61 72 65 20 64 72 61 66 74 20 64 6f 63 75 6d 65'
+          '6e 74 73 20 76 61 6c 69 64 20 66 6f 72 20 61 20'
+          '6d 61 78 69 6d 75 6d 20 6f 66 20 73 69 78 20 6d'
+          '6f 6e 74 68 73 20 61 6e 64 20 6d 61 79 20 62 65'
+          '20 75 70 64 61 74 65 64 2c 20 72 65 70 6c 61 63'
+          '65 64 2c 20 6f 72 20 6f 62 73 6f 6c 65 74 65 64'
+          '20 62 79 20 6f 74 68 65 72 20 64 6f 63 75 6d 65'
+          '6e 74 73 20 61 74 20 61 6e 79 20 74 69 6d 65 2e'
+          '20 49 74 20 69 73 20 69 6e 61 70 70 72 6f 70 72'
+          '69 61 74 65 20 74 6f 20 75 73 65 20 49 6e 74 65'
+          '72 6e 65 74 2d 44 72 61 66 74 73 20 61 73 20 72'
+          '65 66 65 72 65 6e 63 65 20 6d 61 74 65 72 69 61'
+          '6c 20 6f 72 20 74 6f 20 63 69 74 65 20 74 68 65'
+          '6d 20 6f 74 68 65 72 20 74 68 61 6e 20 61 73 20'
+          '2f e2 80 9c 77 6f 72 6b 20 69 6e 20 70 72 6f 67'
+          '72 65 73 73 2e 2f e2 80 9d',
+          '64 a0 86 15 75 86 1a f4 60 f0 62 c7 9b e6 43 bd'
+          '5e 80 5c fd 34 5c f3 89 f1 08 67 0a c7 6c 8c b2'
+          '4c 6c fc 18 75 5d 43 ee a0 9e e9 4e 38 2d 26 b0'
+          'bd b7 b7 3c 32 1b 01 00 d4 f0 3b 7f 35 58 94 cf'
+          '33 2f 83 0e 71 0b 97 ce 98 c8 a8 4a bd 0b 94 81'
+          '14 ad 17 6e 00 8d 33 bd 60 f9 82 b1 ff 37 c8 55'
+          '97 97 a0 6e f4 f0 ef 61 c1 86 32 4e 2b 35 06 38'
+          '36 06 90 7b 6a 7c 02 b0 f9 f6 15 7b 53 c8 67 e4'
+          'b9 16 6c 76 7b 80 4d 46 a5 9b 52 16 cd e7 a4 e9'
+          '90 40 c5 a4 04 33 22 5e e2 82 a1 b0 a0 6c 52 3e'
+          'af 45 34 d7 f8 3f a1 15 5b 00 47 71 8c bc 54 6a'
+          '0d 07 2b 04 b3 56 4e ea 1b 42 22 73 f5 48 27 1a'
+          '0b b2 31 60 53 fa 76 99 19 55 eb d6 31 59 43 4e'
+          'ce bb 4e 46 6d ae 5a 10 73 a6 72 76 27 09 7a 10'
+          '49 e6 17 d9 1d 36 10 94 fa 68 f0 ff 77 98 71 30'
+          '30 5b ea ba 2e da 04 df 99 7b 71 4d 6c 6f 2c 29'
+          'a6 ad 5c b4 02 2b 02 70 9b',
+          'ee ad 9d 67 89 0c bb 22 39 23 36 fe a1 85 1f 38',
+          '1c 92 40 a5 eb 55 d3 8a f3 33 88 86 04 f6 b5 f0'
+          '47 39 17 c1 40 2b 80 09 9d ca 5c bc 20 70 75 c0',
+          '00 00 00 00 01 02 03 04 05 06 07 08',
+        )
+    ]
+
+    test_vectors = [[unhexlify(x.replace(" ", "").replace(":", "")) for x in tv] for tv in test_vectors_hex]
+
+    def runTest(self):
+        for assoc_data, pt, ct, mac, key, nonce in self.test_vectors:
+            # Encrypt
+            cipher = ChaCha20_Poly1305.new(key=key, nonce=nonce)
+            cipher.update(assoc_data)
+            ct2, mac2 = cipher.encrypt_and_digest(pt)
+            self.assertEqual(ct, ct2)
+            self.assertEqual(mac, mac2)
+
+            # Decrypt
+            cipher = ChaCha20_Poly1305.new(key=key, nonce=nonce)
+            cipher.update(assoc_data)
+            pt2 = cipher.decrypt_and_verify(ct, mac)
+            self.assertEqual(pt, pt2)
+
+
+class TestVectorsWycheproof(unittest.TestCase):
+
+    def __init__(self, wycheproof_warnings):
+        unittest.TestCase.__init__(self)
+        self._wycheproof_warnings = wycheproof_warnings
+        self._id = "None"
+
+    def load_tests(self, filename):
+
+        def filter_tag(group):
+            return group['tagSize'] // 8
+
+        def filter_algo(root):
+            return root['algorithm']
+
+        result = load_test_vectors_wycheproof(("Cipher", "wycheproof"),
+                                               filename,
+                                               "Wycheproof ChaCha20-Poly1305",
+                                               root_tag={'algo': filter_algo},
+                                               group_tag={'tag_size': filter_tag})
+        return result
+
+    def setUp(self):
+        self.tv = []
+        self.tv.extend(self.load_tests("chacha20_poly1305_test.json"))
+        self.tv.extend(self.load_tests("xchacha20_poly1305_test.json"))
+
+    def shortDescription(self):
+        return self._id
+
+    def warn(self, tv):
+        if tv.warning and self._wycheproof_warnings:
+            import warnings
+            warnings.warn("Wycheproof warning: %s (%s)" % (self._id, tv.comment))
+
+    def test_encrypt(self, tv):
+        self._id = "Wycheproof Encrypt %s Test #%s" % (tv.algo, tv.id)
+
+        try:
+            cipher = ChaCha20_Poly1305.new(key=tv.key, nonce=tv.iv)
+        except ValueError as e:
+            assert len(tv.iv) not in (8, 12) and "Nonce must be" in str(e)
+            return
+
+        cipher.update(tv.aad)
+        ct, tag = cipher.encrypt_and_digest(tv.msg)
+        if tv.valid:
+            self.assertEqual(ct, tv.ct)
+            self.assertEqual(tag, tv.tag)
+            self.warn(tv)
+
+    def test_decrypt(self, tv):
+        self._id = "Wycheproof Decrypt %s Test #%s" % (tv.algo, tv.id)
+
+        try:
+            cipher = ChaCha20_Poly1305.new(key=tv.key, nonce=tv.iv)
+        except ValueError as e:
+            assert len(tv.iv) not in (8, 12) and "Nonce must be" in str(e)
+            return
+
+        cipher.update(tv.aad)
+        try:
+            pt = cipher.decrypt_and_verify(tv.ct, tv.tag)
+        except ValueError:
+            assert not tv.valid
+        else:
+            assert tv.valid
+            self.assertEqual(pt, tv.msg)
+            self.warn(tv)
+
+    def test_corrupt_decrypt(self, tv):
+        self._id = "Wycheproof Corrupt Decrypt ChaCha20-Poly1305 Test #" + str(tv.id)
+        if len(tv.iv) == 0 or len(tv.ct) < 1:
+            return
+        cipher = ChaCha20_Poly1305.new(key=tv.key, nonce=tv.iv)
+        cipher.update(tv.aad)
+        ct_corrupt = strxor(tv.ct, b"\x00" * (len(tv.ct) - 1) + b"\x01")
+        self.assertRaises(ValueError, cipher.decrypt_and_verify, ct_corrupt, tv.tag)
+
+    def runTest(self):
+
+        for tv in self.tv:
+            self.test_encrypt(tv)
+            self.test_decrypt(tv)
+            self.test_corrupt_decrypt(tv)
+
+
+class TestOutput(unittest.TestCase):
+
+    def runTest(self):
+        # Encrypt/Decrypt data and test output parameter
+
+        key = b'4' * 32
+        nonce = b'5' * 12
+        cipher = ChaCha20_Poly1305.new(key=key, nonce=nonce)
+
+        pt = b'5' * 16
+        ct = cipher.encrypt(pt)
+
+        output = bytearray(16)
+        cipher = ChaCha20_Poly1305.new(key=key, nonce=nonce)
+        res = cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+        self.assertEqual(res, None)
+
+        cipher = ChaCha20_Poly1305.new(key=key, nonce=nonce)
+        res = cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+        self.assertEqual(res, None)
+
+        output = memoryview(bytearray(16))
+        cipher = ChaCha20_Poly1305.new(key=key, nonce=nonce)
+        cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+
+        cipher = ChaCha20_Poly1305.new(key=key, nonce=nonce)
+        cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+
+        cipher = ChaCha20_Poly1305.new(key=key, nonce=nonce)
+        self.assertRaises(TypeError, cipher.encrypt, pt, output=b'0'*16)
+
+        cipher = ChaCha20_Poly1305.new(key=key, nonce=nonce)
+        self.assertRaises(TypeError, cipher.decrypt, ct, output=b'0'*16)
+
+        shorter_output = bytearray(7)
+
+        cipher = ChaCha20_Poly1305.new(key=key, nonce=nonce)
+        self.assertRaises(ValueError, cipher.encrypt, pt, output=shorter_output)
+
+        cipher = ChaCha20_Poly1305.new(key=key, nonce=nonce)
+        self.assertRaises(ValueError, cipher.decrypt, ct, output=shorter_output)
+
+
+def get_tests(config={}):
+    wycheproof_warnings = config.get('wycheproof_warnings')
+
+    tests = []
+    tests += list_test_cases(ChaCha20Poly1305Tests)
+    tests += list_test_cases(XChaCha20Poly1305Tests)
+    tests += list_test_cases(ChaCha20Poly1305FSMTests)
+    tests += [TestVectorsRFC()]
+    tests += [TestVectorsWycheproof(wycheproof_warnings)]
+    tests += [TestOutput()]
+    return tests
+
+
+if __name__ == '__main__':
+    def suite():
+        unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_DES.py

@@ -0,0 +1,374 @@
+# -*- coding: utf-8 -*-
+#
+#  SelfTest/Cipher/DES.py: Self-test for the (Single) DES cipher
+#
+# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net>
+#
+# ===================================================================
+# The contents of this file are dedicated to the public domain.  To
+# the extent that dedication to the public domain is not available,
+# everyone is granted a worldwide, perpetual, royalty-free,
+# non-exclusive license to exercise all rights associated with the
+# contents of this file for any purpose whatsoever.
+# No rights are reserved.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+# ===================================================================
+
+"""Self-test suite for Crypto.Cipher.DES"""
+
+import unittest
+
+from Crypto.Cipher import DES
+
+# This is a list of (plaintext, ciphertext, key, description) tuples.
+SP800_17_B1_KEY = '01' * 8
+SP800_17_B2_PT = '00' * 8
+test_data = [
+    # Test vectors from Appendix A of NIST SP 800-17
+    # "Modes of Operation Validation System (MOVS): Requirements and Procedures"
+    # http://csrc.nist.gov/publications/nistpubs/800-17/800-17.pdf
+
+    # Appendix A - "Sample Round Outputs for the DES"
+    ('0000000000000000', '82dcbafbdeab6602', '10316e028c8f3b4a',
+        "NIST SP800-17 A"),
+
+    # Table B.1 - Variable Plaintext Known Answer Test
+    ('8000000000000000', '95f8a5e5dd31d900', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #0'),
+    ('4000000000000000', 'dd7f121ca5015619', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #1'),
+    ('2000000000000000', '2e8653104f3834ea', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #2'),
+    ('1000000000000000', '4bd388ff6cd81d4f', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #3'),
+    ('0800000000000000', '20b9e767b2fb1456', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #4'),
+    ('0400000000000000', '55579380d77138ef', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #5'),
+    ('0200000000000000', '6cc5defaaf04512f', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #6'),
+    ('0100000000000000', '0d9f279ba5d87260', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #7'),
+    ('0080000000000000', 'd9031b0271bd5a0a', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #8'),
+    ('0040000000000000', '424250b37c3dd951', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #9'),
+    ('0020000000000000', 'b8061b7ecd9a21e5', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #10'),
+    ('0010000000000000', 'f15d0f286b65bd28', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #11'),
+    ('0008000000000000', 'add0cc8d6e5deba1', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #12'),
+    ('0004000000000000', 'e6d5f82752ad63d1', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #13'),
+    ('0002000000000000', 'ecbfe3bd3f591a5e', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #14'),
+    ('0001000000000000', 'f356834379d165cd', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #15'),
+    ('0000800000000000', '2b9f982f20037fa9', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #16'),
+    ('0000400000000000', '889de068a16f0be6', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #17'),
+    ('0000200000000000', 'e19e275d846a1298', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #18'),
+    ('0000100000000000', '329a8ed523d71aec', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #19'),
+    ('0000080000000000', 'e7fce22557d23c97', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #20'),
+    ('0000040000000000', '12a9f5817ff2d65d', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #21'),
+    ('0000020000000000', 'a484c3ad38dc9c19', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #22'),
+    ('0000010000000000', 'fbe00a8a1ef8ad72', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #23'),
+    ('0000008000000000', '750d079407521363', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #24'),
+    ('0000004000000000', '64feed9c724c2faf', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #25'),
+    ('0000002000000000', 'f02b263b328e2b60', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #26'),
+    ('0000001000000000', '9d64555a9a10b852', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #27'),
+    ('0000000800000000', 'd106ff0bed5255d7', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #28'),
+    ('0000000400000000', 'e1652c6b138c64a5', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #29'),
+    ('0000000200000000', 'e428581186ec8f46', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #30'),
+    ('0000000100000000', 'aeb5f5ede22d1a36', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #31'),
+    ('0000000080000000', 'e943d7568aec0c5c', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #32'),
+    ('0000000040000000', 'df98c8276f54b04b', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #33'),
+    ('0000000020000000', 'b160e4680f6c696f', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #34'),
+    ('0000000010000000', 'fa0752b07d9c4ab8', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #35'),
+    ('0000000008000000', 'ca3a2b036dbc8502', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #36'),
+    ('0000000004000000', '5e0905517bb59bcf', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #37'),
+    ('0000000002000000', '814eeb3b91d90726', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #38'),
+    ('0000000001000000', '4d49db1532919c9f', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #39'),
+    ('0000000000800000', '25eb5fc3f8cf0621', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #40'),
+    ('0000000000400000', 'ab6a20c0620d1c6f', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #41'),
+    ('0000000000200000', '79e90dbc98f92cca', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #42'),
+    ('0000000000100000', '866ecedd8072bb0e', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #43'),
+    ('0000000000080000', '8b54536f2f3e64a8', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #44'),
+    ('0000000000040000', 'ea51d3975595b86b', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #45'),
+    ('0000000000020000', 'caffc6ac4542de31', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #46'),
+    ('0000000000010000', '8dd45a2ddf90796c', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #47'),
+    ('0000000000008000', '1029d55e880ec2d0', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #48'),
+    ('0000000000004000', '5d86cb23639dbea9', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #49'),
+    ('0000000000002000', '1d1ca853ae7c0c5f', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #50'),
+    ('0000000000001000', 'ce332329248f3228', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #51'),
+    ('0000000000000800', '8405d1abe24fb942', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #52'),
+    ('0000000000000400', 'e643d78090ca4207', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #53'),
+    ('0000000000000200', '48221b9937748a23', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #54'),
+    ('0000000000000100', 'dd7c0bbd61fafd54', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #55'),
+    ('0000000000000080', '2fbc291a570db5c4', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #56'),
+    ('0000000000000040', 'e07c30d7e4e26e12', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #57'),
+    ('0000000000000020', '0953e2258e8e90a1', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #58'),
+    ('0000000000000010', '5b711bc4ceebf2ee', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #59'),
+    ('0000000000000008', 'cc083f1e6d9e85f6', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #60'),
+    ('0000000000000004', 'd2fd8867d50d2dfe', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #61'),
+    ('0000000000000002', '06e7ea22ce92708f', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #62'),
+    ('0000000000000001', '166b40b44aba4bd6', SP800_17_B1_KEY,
+        'NIST SP800-17 B.1 #63'),
+
+    # Table B.2 - Variable Key Known Answer Test
+    (SP800_17_B2_PT, '95a8d72813daa94d', '8001010101010101',
+        'NIST SP800-17 B.2 #0'),
+    (SP800_17_B2_PT, '0eec1487dd8c26d5', '4001010101010101',
+        'NIST SP800-17 B.2 #1'),
+    (SP800_17_B2_PT, '7ad16ffb79c45926', '2001010101010101',
+        'NIST SP800-17 B.2 #2'),
+    (SP800_17_B2_PT, 'd3746294ca6a6cf3', '1001010101010101',
+        'NIST SP800-17 B.2 #3'),
+    (SP800_17_B2_PT, '809f5f873c1fd761', '0801010101010101',
+        'NIST SP800-17 B.2 #4'),
+    (SP800_17_B2_PT, 'c02faffec989d1fc', '0401010101010101',
+        'NIST SP800-17 B.2 #5'),
+    (SP800_17_B2_PT, '4615aa1d33e72f10', '0201010101010101',
+        'NIST SP800-17 B.2 #6'),
+    (SP800_17_B2_PT, '2055123350c00858', '0180010101010101',
+        'NIST SP800-17 B.2 #7'),
+    (SP800_17_B2_PT, 'df3b99d6577397c8', '0140010101010101',
+        'NIST SP800-17 B.2 #8'),
+    (SP800_17_B2_PT, '31fe17369b5288c9', '0120010101010101',
+        'NIST SP800-17 B.2 #9'),
+    (SP800_17_B2_PT, 'dfdd3cc64dae1642', '0110010101010101',
+        'NIST SP800-17 B.2 #10'),
+    (SP800_17_B2_PT, '178c83ce2b399d94', '0108010101010101',
+        'NIST SP800-17 B.2 #11'),
+    (SP800_17_B2_PT, '50f636324a9b7f80', '0104010101010101',
+        'NIST SP800-17 B.2 #12'),
+    (SP800_17_B2_PT, 'a8468ee3bc18f06d', '0102010101010101',
+        'NIST SP800-17 B.2 #13'),
+    (SP800_17_B2_PT, 'a2dc9e92fd3cde92', '0101800101010101',
+        'NIST SP800-17 B.2 #14'),
+    (SP800_17_B2_PT, 'cac09f797d031287', '0101400101010101',
+        'NIST SP800-17 B.2 #15'),
+    (SP800_17_B2_PT, '90ba680b22aeb525', '0101200101010101',
+        'NIST SP800-17 B.2 #16'),
+    (SP800_17_B2_PT, 'ce7a24f350e280b6', '0101100101010101',
+        'NIST SP800-17 B.2 #17'),
+    (SP800_17_B2_PT, '882bff0aa01a0b87', '0101080101010101',
+        'NIST SP800-17 B.2 #18'),
+    (SP800_17_B2_PT, '25610288924511c2', '0101040101010101',
+        'NIST SP800-17 B.2 #19'),
+    (SP800_17_B2_PT, 'c71516c29c75d170', '0101020101010101',
+        'NIST SP800-17 B.2 #20'),
+    (SP800_17_B2_PT, '5199c29a52c9f059', '0101018001010101',
+        'NIST SP800-17 B.2 #21'),
+    (SP800_17_B2_PT, 'c22f0a294a71f29f', '0101014001010101',
+        'NIST SP800-17 B.2 #22'),
+    (SP800_17_B2_PT, 'ee371483714c02ea', '0101012001010101',
+        'NIST SP800-17 B.2 #23'),
+    (SP800_17_B2_PT, 'a81fbd448f9e522f', '0101011001010101',
+        'NIST SP800-17 B.2 #24'),
+    (SP800_17_B2_PT, '4f644c92e192dfed', '0101010801010101',
+        'NIST SP800-17 B.2 #25'),
+    (SP800_17_B2_PT, '1afa9a66a6df92ae', '0101010401010101',
+        'NIST SP800-17 B.2 #26'),
+    (SP800_17_B2_PT, 'b3c1cc715cb879d8', '0101010201010101',
+        'NIST SP800-17 B.2 #27'),
+    (SP800_17_B2_PT, '19d032e64ab0bd8b', '0101010180010101',
+        'NIST SP800-17 B.2 #28'),
+    (SP800_17_B2_PT, '3cfaa7a7dc8720dc', '0101010140010101',
+        'NIST SP800-17 B.2 #29'),
+    (SP800_17_B2_PT, 'b7265f7f447ac6f3', '0101010120010101',
+        'NIST SP800-17 B.2 #30'),
+    (SP800_17_B2_PT, '9db73b3c0d163f54', '0101010110010101',
+        'NIST SP800-17 B.2 #31'),
+    (SP800_17_B2_PT, '8181b65babf4a975', '0101010108010101',
+        'NIST SP800-17 B.2 #32'),
+    (SP800_17_B2_PT, '93c9b64042eaa240', '0101010104010101',
+        'NIST SP800-17 B.2 #33'),
+    (SP800_17_B2_PT, '5570530829705592', '0101010102010101',
+        'NIST SP800-17 B.2 #34'),
+    (SP800_17_B2_PT, '8638809e878787a0', '0101010101800101',
+        'NIST SP800-17 B.2 #35'),
+    (SP800_17_B2_PT, '41b9a79af79ac208', '0101010101400101',
+        'NIST SP800-17 B.2 #36'),
+    (SP800_17_B2_PT, '7a9be42f2009a892', '0101010101200101',
+        'NIST SP800-17 B.2 #37'),
+    (SP800_17_B2_PT, '29038d56ba6d2745', '0101010101100101',
+        'NIST SP800-17 B.2 #38'),
+    (SP800_17_B2_PT, '5495c6abf1e5df51', '0101010101080101',
+        'NIST SP800-17 B.2 #39'),
+    (SP800_17_B2_PT, 'ae13dbd561488933', '0101010101040101',
+        'NIST SP800-17 B.2 #40'),
+    (SP800_17_B2_PT, '024d1ffa8904e389', '0101010101020101',
+        'NIST SP800-17 B.2 #41'),
+    (SP800_17_B2_PT, 'd1399712f99bf02e', '0101010101018001',
+        'NIST SP800-17 B.2 #42'),
+    (SP800_17_B2_PT, '14c1d7c1cffec79e', '0101010101014001',
+        'NIST SP800-17 B.2 #43'),
+    (SP800_17_B2_PT, '1de5279dae3bed6f', '0101010101012001',
+        'NIST SP800-17 B.2 #44'),
+    (SP800_17_B2_PT, 'e941a33f85501303', '0101010101011001',
+        'NIST SP800-17 B.2 #45'),
+    (SP800_17_B2_PT, 'da99dbbc9a03f379', '0101010101010801',
+        'NIST SP800-17 B.2 #46'),
+    (SP800_17_B2_PT, 'b7fc92f91d8e92e9', '0101010101010401',
+        'NIST SP800-17 B.2 #47'),
+    (SP800_17_B2_PT, 'ae8e5caa3ca04e85', '0101010101010201',
+        'NIST SP800-17 B.2 #48'),
+    (SP800_17_B2_PT, '9cc62df43b6eed74', '0101010101010180',
+        'NIST SP800-17 B.2 #49'),
+    (SP800_17_B2_PT, 'd863dbb5c59a91a0', '0101010101010140',
+        'NIST SP800-17 B.2 #50'),
+    (SP800_17_B2_PT, 'a1ab2190545b91d7', '0101010101010120',
+        'NIST SP800-17 B.2 #51'),
+    (SP800_17_B2_PT, '0875041e64c570f7', '0101010101010110',
+        'NIST SP800-17 B.2 #52'),
+    (SP800_17_B2_PT, '5a594528bebef1cc', '0101010101010108',
+        'NIST SP800-17 B.2 #53'),
+    (SP800_17_B2_PT, 'fcdb3291de21f0c0', '0101010101010104',
+        'NIST SP800-17 B.2 #54'),
+    (SP800_17_B2_PT, '869efd7f9f265a09', '0101010101010102',
+        'NIST SP800-17 B.2 #55'),
+]
+
+class RonRivestTest(unittest.TestCase):
+    """ Ronald L. Rivest's DES test, see
+        http://people.csail.mit.edu/rivest/Destest.txt
+    ABSTRACT
+    --------
+
+    We present a simple way to test the correctness of a DES implementation:
+    Use the recurrence relation:
+
+        X0      =       9474B8E8C73BCA7D (hexadecimal)
+
+        X(i+1)  =       IF  (i is even)  THEN  E(Xi,Xi)  ELSE  D(Xi,Xi)
+
+    to compute a sequence of 64-bit values:  X0, X1, X2, ..., X16.  Here
+    E(X,K)  denotes the DES encryption of  X  using key  K, and  D(X,K)  denotes
+    the DES decryption of  X  using key  K.  If you obtain
+
+        X16     =       1B1A2DDB4C642438
+
+    your implementation does not have any of the 36,568 possible single-fault
+    errors described herein.
+    """
+    def runTest(self):
+        from binascii import b2a_hex
+
+        X = []
+        X[0:] = [b'\x94\x74\xB8\xE8\xC7\x3B\xCA\x7D']
+
+        for i in range(16):
+            c = DES.new(X[i],DES.MODE_ECB)
+            if not (i&1): # (num&1) returns 1 for odd numbers
+                X[i+1:] = [c.encrypt(X[i])] # even
+            else:
+                X[i+1:] = [c.decrypt(X[i])] # odd
+
+        self.assertEqual(b2a_hex(X[16]),
+            b2a_hex(b'\x1B\x1A\x2D\xDB\x4C\x64\x24\x38'))
+
+
+class TestOutput(unittest.TestCase):
+
+    def runTest(self):
+        # Encrypt/Decrypt data and test output parameter
+
+        cipher = DES.new(b'4'*8, DES.MODE_ECB)
+
+        pt = b'5' * 8
+        ct = cipher.encrypt(pt)
+
+        output = bytearray(8)
+        res = cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+        self.assertEqual(res, None)
+        
+        res = cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+        self.assertEqual(res, None)
+
+        output = memoryview(bytearray(8))
+        cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+        
+        cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+
+        self.assertRaises(TypeError, cipher.encrypt, pt, output=b'0'*8)
+        self.assertRaises(TypeError, cipher.decrypt, ct, output=b'0'*8)
+
+        shorter_output = bytearray(7)
+        self.assertRaises(ValueError, cipher.encrypt, pt, output=shorter_output)
+        self.assertRaises(ValueError, cipher.decrypt, ct, output=shorter_output)
+
+
+def get_tests(config={}):
+    from .common import make_block_tests
+    tests = make_block_tests(DES, "DES", test_data)
+    tests += [RonRivestTest()]
+    tests += [TestOutput()]
+    return tests
+
+
+if __name__ == '__main__':
+    import unittest
+    suite = lambda: unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')
+
+# vim:set ts=4 sw=4 sts=4 expandtab:

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_DES3.py

@@ -0,0 +1,195 @@
+# -*- coding: utf-8 -*-
+#
+#  SelfTest/Cipher/DES3.py: Self-test for the Triple-DES cipher
+#
+# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net>
+#
+# ===================================================================
+# The contents of this file are dedicated to the public domain.  To
+# the extent that dedication to the public domain is not available,
+# everyone is granted a worldwide, perpetual, royalty-free,
+# non-exclusive license to exercise all rights associated with the
+# contents of this file for any purpose whatsoever.
+# No rights are reserved.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+# ===================================================================
+
+"""Self-test suite for Crypto.Cipher.DES3"""
+
+import unittest
+from binascii import hexlify, unhexlify
+
+from Crypto.Cipher import DES3
+
+from Crypto.Util.strxor import strxor_c
+from Crypto.Util.py3compat import bchr, tostr
+from Crypto.SelfTest.loader import load_test_vectors
+from Crypto.SelfTest.st_common import list_test_cases
+
+# This is a list of (plaintext, ciphertext, key, description) tuples.
+test_data = [
+    # Test vector from Appendix B of NIST SP 800-67
+    # "Recommendation for the Triple Data Encryption Algorithm (TDEA) Block
+    # Cipher"
+    # http://csrc.nist.gov/publications/nistpubs/800-67/SP800-67.pdf
+    ('54686520717566636b2062726f776e20666f78206a756d70',
+        'a826fd8ce53b855fcce21c8112256fe668d5c05dd9b6b900',
+        '0123456789abcdef23456789abcdef01456789abcdef0123',
+        'NIST SP800-67 B.1'),
+
+    # This test is designed to test the DES3 API, not the correctness of the
+    # output.
+    ('21e81b7ade88a259', '5c577d4d9b20c0f8',
+        '9b397ebf81b1181e282f4bb8adbadc6b', 'Two-key 3DES'),
+]
+
+# NIST CAVP test vectors
+
+nist_tdes_mmt_files = ("TECBMMT2.rsp", "TECBMMT3.rsp")
+
+for tdes_file in nist_tdes_mmt_files:
+
+    test_vectors = load_test_vectors(
+                        ("Cipher", "TDES"),
+                        tdes_file,
+                        "TDES ECB (%s)" % tdes_file,
+                        {"count": lambda x: int(x)}) or []
+
+    for index, tv in enumerate(test_vectors):
+
+        # The test vector file contains some directive lines
+        if isinstance(tv, str):
+            continue
+
+        key = tv.key1 + tv.key2 + tv.key3
+        test_data_item = (tostr(hexlify(tv.plaintext)),
+                          tostr(hexlify(tv.ciphertext)),
+                          tostr(hexlify(key)),
+                          "%s (%s)" % (tdes_file, index))
+        test_data.append(test_data_item)
+
+
+class CheckParity(unittest.TestCase):
+
+    def test_parity_option2(self):
+        before_2k = unhexlify("CABF326FA56734324FFCCABCDEFACABF")
+        after_2k = DES3.adjust_key_parity(before_2k)
+        self.assertEqual(after_2k,
+                         unhexlify("CBBF326EA46734324FFDCBBCDFFBCBBF"))
+
+    def test_parity_option3(self):
+        before_3k = unhexlify("AAAAAAAAAAAAAAAABBBBBBBBBBBBBBBBCCCCCCCCCCCCCCCC")
+        after_3k = DES3.adjust_key_parity(before_3k)
+        self.assertEqual(after_3k,
+                         unhexlify("ABABABABABABABABBABABABABABABABACDCDCDCDCDCDCDCD"))
+
+    def test_degradation(self):
+        sub_key1 = bchr(1) * 8
+        sub_key2 = bchr(255) * 8
+
+        # K1 == K2
+        self.assertRaises(ValueError, DES3.adjust_key_parity,
+                          sub_key1 * 2 + sub_key2)
+
+        # K2 == K3
+        self.assertRaises(ValueError, DES3.adjust_key_parity,
+                          sub_key1 + sub_key2 * 2)
+
+        # K1 == K2 == K3
+        self.assertRaises(ValueError, DES3.adjust_key_parity,
+                          sub_key1 * 3)
+
+        # K1 == K2 (with different parity)
+        self.assertRaises(ValueError, DES3.adjust_key_parity,
+                          sub_key1 + strxor_c(sub_key1, 1) + sub_key2)
+
+
+class DegenerateToDESTest(unittest.TestCase):
+
+    def runTest(self):
+        sub_key1 = bchr(1) * 8
+        sub_key2 = bchr(255) * 8
+
+        # K1 == K2
+        self.assertRaises(ValueError, DES3.new,
+                          sub_key1 * 2 + sub_key2,
+                          DES3.MODE_ECB)
+
+        # K2 == K3
+        self.assertRaises(ValueError, DES3.new,
+                          sub_key1 + sub_key2 * 2,
+                          DES3.MODE_ECB)
+
+        # K1 == K2 == K3
+        self.assertRaises(ValueError, DES3.new,
+                          sub_key1 * 3,
+                          DES3.MODE_ECB)
+
+        # K2 == K3 (parity is ignored)
+        self.assertRaises(ValueError, DES3.new,
+                          sub_key1 + sub_key2 + strxor_c(sub_key2, 0x1),
+                          DES3.MODE_ECB)
+
+
+class TestOutput(unittest.TestCase):
+
+    def runTest(self):
+        # Encrypt/Decrypt data and test output parameter
+
+        cipher = DES3.new(b'4'*8 + b'G'*8 + b'T'*8, DES3.MODE_ECB)
+
+        pt = b'5' * 16
+        ct = cipher.encrypt(pt)
+
+        output = bytearray(16)
+        res = cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+        self.assertEqual(res, None)
+
+        res = cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+        self.assertEqual(res, None)
+
+        output = memoryview(bytearray(16))
+        cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+
+        cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+
+        self.assertRaises(TypeError, cipher.encrypt, pt, output=b'0'*16)
+        self.assertRaises(TypeError, cipher.decrypt, ct, output=b'0'*16)
+
+        shorter_output = bytearray(7)
+        self.assertRaises(ValueError, cipher.encrypt, pt, output=shorter_output)
+        self.assertRaises(ValueError, cipher.decrypt, ct, output=shorter_output)
+
+
+def get_tests(config={}):
+    from .common import make_block_tests
+
+    tests = []
+    tests = make_block_tests(DES3, "DES3", test_data)
+    tests.append(DegenerateToDESTest())
+    tests += list_test_cases(CheckParity)
+    tests += [TestOutput()]
+    return tests
+
+
+if __name__ == '__main__':
+    import unittest
+
+    def suite():
+        unittest.TestSuite(get_tests())
+
+    unittest.main(defaultTest='suite')
+
+# vim:set ts=4 sw=4 sts=4 expandtab:

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_EAX.py

@@ -0,0 +1,773 @@
+# ===================================================================
+#
+# Copyright (c) 2015, Legrandin <helderijs@gmail.com>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+# ===================================================================
+
+import unittest
+from binascii import unhexlify
+
+from Crypto.SelfTest.st_common import list_test_cases
+from Crypto.SelfTest.loader import load_test_vectors_wycheproof
+from Crypto.Util.py3compat import tobytes, bchr
+from Crypto.Cipher import AES, DES3
+from Crypto.Hash import SHAKE128
+
+from Crypto.Util.strxor import strxor
+
+
+def get_tag_random(tag, length):
+    return SHAKE128.new(data=tobytes(tag)).read(length)
+
+
+class EaxTests(unittest.TestCase):
+
+    key_128 = get_tag_random("key_128", 16)
+    key_192 = get_tag_random("key_192", 16)
+    nonce_96 = get_tag_random("nonce_128", 12)
+    data_128 = get_tag_random("data_128", 16)
+
+    def test_loopback_128(self):
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        pt = get_tag_random("plaintext", 16 * 100)
+        ct = cipher.encrypt(pt)
+
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        pt2 = cipher.decrypt(ct)
+        self.assertEqual(pt, pt2)
+
+    def test_loopback_64(self):
+        cipher = DES3.new(self.key_192, DES3.MODE_EAX, nonce=self.nonce_96)
+        pt = get_tag_random("plaintext", 8 * 100)
+        ct = cipher.encrypt(pt)
+
+        cipher = DES3.new(self.key_192, DES3.MODE_EAX, nonce=self.nonce_96)
+        pt2 = cipher.decrypt(ct)
+        self.assertEqual(pt, pt2)
+
+    def test_nonce(self):
+        # If not passed, the nonce is created randomly
+        cipher = AES.new(self.key_128, AES.MODE_EAX)
+        nonce1 = cipher.nonce
+        cipher = AES.new(self.key_128, AES.MODE_EAX)
+        nonce2 = cipher.nonce
+        self.assertEqual(len(nonce1), 16)
+        self.assertNotEqual(nonce1, nonce2)
+
+        cipher = AES.new(self.key_128, AES.MODE_EAX, self.nonce_96)
+        ct = cipher.encrypt(self.data_128)
+
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        self.assertEqual(ct, cipher.encrypt(self.data_128))
+
+    def test_nonce_must_be_bytes(self):
+        self.assertRaises(TypeError, AES.new, self.key_128, AES.MODE_EAX,
+                          nonce=u'test12345678')
+
+    def test_nonce_length(self):
+        # nonce can be of any length (but not empty)
+        self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_EAX,
+                          nonce=b"")
+
+        for x in range(1, 128):
+            cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=bchr(1) * x)
+            cipher.encrypt(bchr(1))
+
+    def test_block_size_128(self):
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        self.assertEqual(cipher.block_size, AES.block_size)
+
+    def test_block_size_64(self):
+        cipher = DES3.new(self.key_192, AES.MODE_EAX, nonce=self.nonce_96)
+        self.assertEqual(cipher.block_size, DES3.block_size)
+
+    def test_nonce_attribute(self):
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        self.assertEqual(cipher.nonce, self.nonce_96)
+
+        # By default, a 16 bytes long nonce is randomly generated
+        nonce1 = AES.new(self.key_128, AES.MODE_EAX).nonce
+        nonce2 = AES.new(self.key_128, AES.MODE_EAX).nonce
+        self.assertEqual(len(nonce1), 16)
+        self.assertNotEqual(nonce1, nonce2)
+
+    def test_unknown_parameters(self):
+        self.assertRaises(TypeError, AES.new, self.key_128, AES.MODE_EAX,
+                          self.nonce_96, 7)
+        self.assertRaises(TypeError, AES.new, self.key_128, AES.MODE_EAX,
+                          nonce=self.nonce_96, unknown=7)
+
+        # But some are only known by the base cipher
+        # (e.g. use_aesni consumed by the AES module)
+        AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96,
+                use_aesni=False)
+
+    def test_null_encryption_decryption(self):
+        for func in "encrypt", "decrypt":
+            cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+            result = getattr(cipher, func)(b"")
+            self.assertEqual(result, b"")
+
+    def test_either_encrypt_or_decrypt(self):
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        cipher.encrypt(b"")
+        self.assertRaises(TypeError, cipher.decrypt, b"")
+
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        cipher.decrypt(b"")
+        self.assertRaises(TypeError, cipher.encrypt, b"")
+
+    def test_data_must_be_bytes(self):
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.encrypt, u'test1234567890-*')
+
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.decrypt, u'test1234567890-*')
+
+    def test_mac_len(self):
+        # Invalid MAC length
+        self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_EAX,
+                          nonce=self.nonce_96, mac_len=2-1)
+        self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_EAX,
+                          nonce=self.nonce_96, mac_len=16+1)
+
+        # Valid MAC length
+        for mac_len in range(2, 16 + 1):
+            cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96,
+                             mac_len=mac_len)
+            _, mac = cipher.encrypt_and_digest(self.data_128)
+            self.assertEqual(len(mac), mac_len)
+
+        # Default MAC length
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        _, mac = cipher.encrypt_and_digest(self.data_128)
+        self.assertEqual(len(mac), 16)
+
+    def test_invalid_mac(self):
+        from Crypto.Util.strxor import strxor_c
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        ct, mac = cipher.encrypt_and_digest(self.data_128)
+
+        invalid_mac = strxor_c(mac, 0x01)
+
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        self.assertRaises(ValueError, cipher.decrypt_and_verify, ct,
+                          invalid_mac)
+
+    def test_hex_mac(self):
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        mac_hex = cipher.hexdigest()
+        self.assertEqual(cipher.digest(), unhexlify(mac_hex))
+
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        cipher.hexverify(mac_hex)
+
+    def test_message_chunks(self):
+        # Validate that both associated data and plaintext/ciphertext
+        # can be broken up in chunks of arbitrary length
+
+        auth_data = get_tag_random("authenticated data", 127)
+        plaintext = get_tag_random("plaintext", 127)
+
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        cipher.update(auth_data)
+        ciphertext, ref_mac = cipher.encrypt_and_digest(plaintext)
+
+        def break_up(data, chunk_length):
+            return [data[i:i+chunk_length] for i in range(0, len(data),
+                    chunk_length)]
+
+        # Encryption
+        for chunk_length in 1, 2, 3, 7, 10, 13, 16, 40, 80, 128:
+
+            cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+
+            for chunk in break_up(auth_data, chunk_length):
+                cipher.update(chunk)
+            pt2 = b""
+            for chunk in break_up(ciphertext, chunk_length):
+                pt2 += cipher.decrypt(chunk)
+            self.assertEqual(plaintext, pt2)
+            cipher.verify(ref_mac)
+
+        # Decryption
+        for chunk_length in 1, 2, 3, 7, 10, 13, 16, 40, 80, 128:
+
+            cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+
+            for chunk in break_up(auth_data, chunk_length):
+                cipher.update(chunk)
+            ct2 = b""
+            for chunk in break_up(plaintext, chunk_length):
+                ct2 += cipher.encrypt(chunk)
+            self.assertEqual(ciphertext, ct2)
+            self.assertEqual(cipher.digest(), ref_mac)
+
+    def test_bytearray(self):
+
+        # Encrypt
+        key_ba = bytearray(self.key_128)
+        nonce_ba = bytearray(self.nonce_96)
+        header_ba = bytearray(self.data_128)
+        data_ba = bytearray(self.data_128)
+
+        cipher1 = AES.new(self.key_128,
+                          AES.MODE_EAX,
+                          nonce=self.nonce_96)
+        cipher1.update(self.data_128)
+        ct = cipher1.encrypt(self.data_128)
+        tag = cipher1.digest()
+
+        cipher2 = AES.new(key_ba,
+                          AES.MODE_EAX,
+                          nonce=nonce_ba)
+        key_ba[:3] = b'\xFF\xFF\xFF'
+        nonce_ba[:3] = b'\xFF\xFF\xFF'
+        cipher2.update(header_ba)
+        header_ba[:3] = b'\xFF\xFF\xFF'
+        ct_test = cipher2.encrypt(data_ba)
+        data_ba[:3] = b'\x99\x99\x99'
+        tag_test = cipher2.digest()
+
+        self.assertEqual(ct, ct_test)
+        self.assertEqual(tag, tag_test)
+        self.assertEqual(cipher1.nonce, cipher2.nonce)
+
+        # Decrypt
+        key_ba = bytearray(self.key_128)
+        nonce_ba = bytearray(self.nonce_96)
+        header_ba = bytearray(self.data_128)
+        ct_ba = bytearray(ct)
+        tag_ba = bytearray(tag)
+        del data_ba
+
+        cipher3 = AES.new(key_ba,
+                          AES.MODE_EAX,
+                          nonce=nonce_ba)
+        key_ba[:3] = b'\xFF\xFF\xFF'
+        nonce_ba[:3] = b'\xFF\xFF\xFF'
+        cipher3.update(header_ba)
+        header_ba[:3] = b'\xFF\xFF\xFF'
+        pt_test = cipher3.decrypt(ct_ba)
+        ct_ba[:3] = b'\xFF\xFF\xFF'
+        cipher3.verify(tag_ba)
+
+        self.assertEqual(pt_test, self.data_128)
+
+    def test_memoryview(self):
+
+        # Encrypt
+        key_mv = memoryview(bytearray(self.key_128))
+        nonce_mv = memoryview(bytearray(self.nonce_96))
+        header_mv = memoryview(bytearray(self.data_128))
+        data_mv = memoryview(bytearray(self.data_128))
+
+        cipher1 = AES.new(self.key_128,
+                          AES.MODE_EAX,
+                          nonce=self.nonce_96)
+        cipher1.update(self.data_128)
+        ct = cipher1.encrypt(self.data_128)
+        tag = cipher1.digest()
+
+        cipher2 = AES.new(key_mv,
+                          AES.MODE_EAX,
+                          nonce=nonce_mv)
+        key_mv[:3] = b'\xFF\xFF\xFF'
+        nonce_mv[:3] = b'\xFF\xFF\xFF'
+        cipher2.update(header_mv)
+        header_mv[:3] = b'\xFF\xFF\xFF'
+        ct_test = cipher2.encrypt(data_mv)
+        data_mv[:3] = b'\x99\x99\x99'
+        tag_test = cipher2.digest()
+
+        self.assertEqual(ct, ct_test)
+        self.assertEqual(tag, tag_test)
+        self.assertEqual(cipher1.nonce, cipher2.nonce)
+
+        # Decrypt
+        key_mv = memoryview(bytearray(self.key_128))
+        nonce_mv = memoryview(bytearray(self.nonce_96))
+        header_mv = memoryview(bytearray(self.data_128))
+        ct_mv = memoryview(bytearray(ct))
+        tag_mv = memoryview(bytearray(tag))
+        del data_mv
+
+        cipher3 = AES.new(key_mv,
+                          AES.MODE_EAX,
+                          nonce=nonce_mv)
+        key_mv[:3] = b'\xFF\xFF\xFF'
+        nonce_mv[:3] = b'\xFF\xFF\xFF'
+        cipher3.update(header_mv)
+        header_mv[:3] = b'\xFF\xFF\xFF'
+        pt_test = cipher3.decrypt(ct_mv)
+        ct_mv[:3] = b'\x99\x99\x99'
+        cipher3.verify(tag_mv)
+
+        self.assertEqual(pt_test, self.data_128)
+
+    def test_output_param(self):
+
+        pt = b'5' * 128
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        ct = cipher.encrypt(pt)
+        tag = cipher.digest()
+
+        output = bytearray(128)
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        res = cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+        self.assertEqual(res, None)
+
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        res = cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+        self.assertEqual(res, None)
+
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        res, tag_out = cipher.encrypt_and_digest(pt, output=output)
+        self.assertEqual(ct, output)
+        self.assertEqual(res, None)
+        self.assertEqual(tag, tag_out)
+
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        res = cipher.decrypt_and_verify(ct, tag, output=output)
+        self.assertEqual(pt, output)
+        self.assertEqual(res, None)
+
+    def test_output_param_memoryview(self):
+
+        pt = b'5' * 128
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        ct = cipher.encrypt(pt)
+
+        output = memoryview(bytearray(128))
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+
+    def test_output_param_neg(self):
+        LEN_PT = 16
+
+        pt = b'5' * LEN_PT
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        ct = cipher.encrypt(pt)
+
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.encrypt, pt, output=b'0' * LEN_PT)
+
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.decrypt, ct, output=b'0' * LEN_PT)
+
+        shorter_output = bytearray(LEN_PT - 1)
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        self.assertRaises(ValueError, cipher.encrypt, pt, output=shorter_output)
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        self.assertRaises(ValueError, cipher.decrypt, ct, output=shorter_output)
+
+
+class EaxFSMTests(unittest.TestCase):
+
+    key_128 = get_tag_random("key_128", 16)
+    nonce_96 = get_tag_random("nonce_128", 12)
+    data_128 = get_tag_random("data_128", 16)
+
+    def test_valid_init_encrypt_decrypt_digest_verify(self):
+        # No authenticated data, fixed plaintext
+        # Verify path INIT->ENCRYPT->DIGEST
+        cipher = AES.new(self.key_128, AES.MODE_EAX,
+                         nonce=self.nonce_96)
+        ct = cipher.encrypt(self.data_128)
+        mac = cipher.digest()
+
+        # Verify path INIT->DECRYPT->VERIFY
+        cipher = AES.new(self.key_128, AES.MODE_EAX,
+                         nonce=self.nonce_96)
+        cipher.decrypt(ct)
+        cipher.verify(mac)
+
+    def test_valid_init_update_digest_verify(self):
+        # No plaintext, fixed authenticated data
+        # Verify path INIT->UPDATE->DIGEST
+        cipher = AES.new(self.key_128, AES.MODE_EAX,
+                         nonce=self.nonce_96)
+        cipher.update(self.data_128)
+        mac = cipher.digest()
+
+        # Verify path INIT->UPDATE->VERIFY
+        cipher = AES.new(self.key_128, AES.MODE_EAX,
+                         nonce=self.nonce_96)
+        cipher.update(self.data_128)
+        cipher.verify(mac)
+
+    def test_valid_full_path(self):
+        # Fixed authenticated data, fixed plaintext
+        # Verify path INIT->UPDATE->ENCRYPT->DIGEST
+        cipher = AES.new(self.key_128, AES.MODE_EAX,
+                         nonce=self.nonce_96)
+        cipher.update(self.data_128)
+        ct = cipher.encrypt(self.data_128)
+        mac = cipher.digest()
+
+        # Verify path INIT->UPDATE->DECRYPT->VERIFY
+        cipher = AES.new(self.key_128, AES.MODE_EAX,
+                         nonce=self.nonce_96)
+        cipher.update(self.data_128)
+        cipher.decrypt(ct)
+        cipher.verify(mac)
+
+    def test_valid_init_digest(self):
+        # Verify path INIT->DIGEST
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        cipher.digest()
+
+    def test_valid_init_verify(self):
+        # Verify path INIT->VERIFY
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        mac = cipher.digest()
+
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        cipher.verify(mac)
+
+    def test_valid_multiple_encrypt_or_decrypt(self):
+        for method_name in "encrypt", "decrypt":
+            for auth_data in (None, b"333", self.data_128,
+                              self.data_128 + b"3"):
+                if auth_data is None:
+                    assoc_len = None
+                else:
+                    assoc_len = len(auth_data)
+                cipher = AES.new(self.key_128, AES.MODE_EAX,
+                                 nonce=self.nonce_96)
+                if auth_data is not None:
+                    cipher.update(auth_data)
+                method = getattr(cipher, method_name)
+                method(self.data_128)
+                method(self.data_128)
+                method(self.data_128)
+                method(self.data_128)
+
+    def test_valid_multiple_digest_or_verify(self):
+        # Multiple calls to digest
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        cipher.update(self.data_128)
+        first_mac = cipher.digest()
+        for x in range(4):
+            self.assertEqual(first_mac, cipher.digest())
+
+        # Multiple calls to verify
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        cipher.update(self.data_128)
+        for x in range(5):
+            cipher.verify(first_mac)
+
+    def test_valid_encrypt_and_digest_decrypt_and_verify(self):
+        # encrypt_and_digest
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        cipher.update(self.data_128)
+        ct, mac = cipher.encrypt_and_digest(self.data_128)
+
+        # decrypt_and_verify
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        cipher.update(self.data_128)
+        pt = cipher.decrypt_and_verify(ct, mac)
+        self.assertEqual(self.data_128, pt)
+
+    def test_invalid_mixing_encrypt_decrypt(self):
+        # Once per method, with or without assoc. data
+        for method1_name, method2_name in (("encrypt", "decrypt"),
+                                           ("decrypt", "encrypt")):
+            for assoc_data_present in (True, False):
+                cipher = AES.new(self.key_128, AES.MODE_EAX,
+                                 nonce=self.nonce_96)
+                if assoc_data_present:
+                    cipher.update(self.data_128)
+                getattr(cipher, method1_name)(self.data_128)
+                self.assertRaises(TypeError, getattr(cipher, method2_name),
+                                  self.data_128)
+
+    def test_invalid_encrypt_or_update_after_digest(self):
+        for method_name in "encrypt", "update":
+            cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+            cipher.encrypt(self.data_128)
+            cipher.digest()
+            self.assertRaises(TypeError, getattr(cipher, method_name),
+                              self.data_128)
+
+            cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+            cipher.encrypt_and_digest(self.data_128)
+
+    def test_invalid_decrypt_or_update_after_verify(self):
+        cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+        ct = cipher.encrypt(self.data_128)
+        mac = cipher.digest()
+
+        for method_name in "decrypt", "update":
+            cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+            cipher.decrypt(ct)
+            cipher.verify(mac)
+            self.assertRaises(TypeError, getattr(cipher, method_name),
+                              self.data_128)
+
+            cipher = AES.new(self.key_128, AES.MODE_EAX, nonce=self.nonce_96)
+            cipher.decrypt_and_verify(ct, mac)
+            self.assertRaises(TypeError, getattr(cipher, method_name),
+                              self.data_128)
+
+
+class TestVectorsPaper(unittest.TestCase):
+    """Class exercising the EAX test vectors found in
+       http://www.cs.ucdavis.edu/~rogaway/papers/eax.pdf"""
+
+    test_vectors_hex = [
+        ( '6bfb914fd07eae6b',
+          '',
+          '',
+          'e037830e8389f27b025a2d6527e79d01',
+          '233952dee4d5ed5f9b9c6d6ff80ff478',
+          '62EC67F9C3A4A407FCB2A8C49031A8B3'
+        ),
+        (
+          'fa3bfd4806eb53fa',
+          'f7fb',
+          '19dd',
+          '5c4c9331049d0bdab0277408f67967e5',
+          '91945d3f4dcbee0bf45ef52255f095a4',
+          'BECAF043B0A23D843194BA972C66DEBD'
+        ),
+        ( '234a3463c1264ac6',
+          '1a47cb4933',
+          'd851d5bae0',
+          '3a59f238a23e39199dc9266626c40f80',
+          '01f74ad64077f2e704c0f60ada3dd523',
+          '70C3DB4F0D26368400A10ED05D2BFF5E'
+        ),
+        (
+          '33cce2eabff5a79d',
+          '481c9e39b1',
+          '632a9d131a',
+          'd4c168a4225d8e1ff755939974a7bede',
+          'd07cf6cbb7f313bdde66b727afd3c5e8',
+          '8408DFFF3C1A2B1292DC199E46B7D617'
+        ),
+        (
+          'aeb96eaebe2970e9',
+          '40d0c07da5e4',
+          '071dfe16c675',
+          'cb0677e536f73afe6a14b74ee49844dd',
+          '35b6d0580005bbc12b0587124557d2c2',
+          'FDB6B06676EEDC5C61D74276E1F8E816'
+        ),
+        (
+          'd4482d1ca78dce0f',
+          '4de3b35c3fc039245bd1fb7d',
+          '835bb4f15d743e350e728414',
+          'abb8644fd6ccb86947c5e10590210a4f',
+          'bd8e6e11475e60b268784c38c62feb22',
+          '6EAC5C93072D8E8513F750935E46DA1B'
+        ),
+        (
+          '65d2017990d62528',
+          '8b0a79306c9ce7ed99dae4f87f8dd61636',
+          '02083e3979da014812f59f11d52630da30',
+          '137327d10649b0aa6e1c181db617d7f2',
+          '7c77d6e813bed5ac98baa417477a2e7d',
+          '1A8C98DCD73D38393B2BF1569DEEFC19'
+        ),
+        (
+          '54b9f04e6a09189a',
+          '1bda122bce8a8dbaf1877d962b8592dd2d56',
+          '2ec47b2c4954a489afc7ba4897edcdae8cc3',
+          '3b60450599bd02c96382902aef7f832a',
+          '5fff20cafab119ca2fc73549e20f5b0d',
+          'DDE59B97D722156D4D9AFF2BC7559826'
+        ),
+        (
+          '899a175897561d7e',
+          '6cf36720872b8513f6eab1a8a44438d5ef11',
+          '0de18fd0fdd91e7af19f1d8ee8733938b1e8',
+          'e7f6d2231618102fdb7fe55ff1991700',
+          'a4a4782bcffd3ec5e7ef6d8c34a56123',
+          'B781FCF2F75FA5A8DE97A9CA48E522EC'
+        ),
+        (
+          '126735fcc320d25a',
+          'ca40d7446e545ffaed3bd12a740a659ffbbb3ceab7',
+          'cb8920f87a6c75cff39627b56e3ed197c552d295a7',
+          'cfc46afc253b4652b1af3795b124ab6e',
+          '8395fcf1e95bebd697bd010bc766aac3',
+          '22E7ADD93CFC6393C57EC0B3C17D6B44'
+        ),
+    ]
+
+    test_vectors = [[unhexlify(x) for x in tv] for tv in test_vectors_hex]
+
+    def runTest(self):
+        for assoc_data, pt, ct, mac, key, nonce in self.test_vectors:
+            # Encrypt
+            cipher = AES.new(key, AES.MODE_EAX, nonce, mac_len=len(mac))
+            cipher.update(assoc_data)
+            ct2, mac2 = cipher.encrypt_and_digest(pt)
+            self.assertEqual(ct, ct2)
+            self.assertEqual(mac, mac2)
+
+            # Decrypt
+            cipher = AES.new(key, AES.MODE_EAX, nonce, mac_len=len(mac))
+            cipher.update(assoc_data)
+            pt2 = cipher.decrypt_and_verify(ct, mac)
+            self.assertEqual(pt, pt2)
+
+
+class TestVectorsWycheproof(unittest.TestCase):
+
+    def __init__(self, wycheproof_warnings):
+        unittest.TestCase.__init__(self)
+        self._wycheproof_warnings = wycheproof_warnings
+        self._id = "None"
+
+    def setUp(self):
+
+        def filter_tag(group):
+            return group['tagSize'] // 8
+
+        self.tv = load_test_vectors_wycheproof(("Cipher", "wycheproof"),
+                                               "aes_eax_test.json",
+                                               "Wycheproof EAX",
+                                               group_tag={'tag_size': filter_tag})
+
+    def shortDescription(self):
+        return self._id
+
+    def warn(self, tv):
+        if tv.warning and self._wycheproof_warnings:
+            import warnings
+            warnings.warn("Wycheproof warning: %s (%s)" % (self._id, tv.comment))
+
+    def test_encrypt(self, tv):
+        self._id = "Wycheproof Encrypt EAX Test #" + str(tv.id)
+
+        try:
+            cipher = AES.new(tv.key, AES.MODE_EAX, tv.iv, mac_len=tv.tag_size)
+        except ValueError as e:
+            assert len(tv.iv) == 0 and "Nonce cannot be empty" in str(e)
+            return
+
+        cipher.update(tv.aad)
+        ct, tag = cipher.encrypt_and_digest(tv.msg)
+        if tv.valid:
+            self.assertEqual(ct, tv.ct)
+            self.assertEqual(tag, tv.tag)
+            self.warn(tv)
+
+    def test_decrypt(self, tv):
+        self._id = "Wycheproof Decrypt EAX Test #" + str(tv.id)
+
+        try:
+            cipher = AES.new(tv.key, AES.MODE_EAX, tv.iv, mac_len=tv.tag_size)
+        except ValueError as e:
+            assert len(tv.iv) == 0 and "Nonce cannot be empty" in str(e)
+            return
+
+        cipher.update(tv.aad)
+        try:
+            pt = cipher.decrypt_and_verify(tv.ct, tv.tag)
+        except ValueError:
+            assert not tv.valid
+        else:
+            assert tv.valid
+            self.assertEqual(pt, tv.msg)
+            self.warn(tv)
+
+    def test_corrupt_decrypt(self, tv):
+        self._id = "Wycheproof Corrupt Decrypt EAX Test #" + str(tv.id)
+        if len(tv.iv) == 0 or len(tv.ct) < 1:
+            return
+        cipher = AES.new(tv.key, AES.MODE_EAX, tv.iv, mac_len=tv.tag_size)
+        cipher.update(tv.aad)
+        ct_corrupt = strxor(tv.ct, b"\x00" * (len(tv.ct) - 1) + b"\x01")
+        self.assertRaises(ValueError, cipher.decrypt_and_verify, ct_corrupt, tv.tag)
+
+    def runTest(self):
+
+        for tv in self.tv:
+            self.test_encrypt(tv)
+            self.test_decrypt(tv)
+            self.test_corrupt_decrypt(tv)
+
+
+class TestOtherCiphers(unittest.TestCase):
+
+    @classmethod
+    def create_test(cls, name, factory, key_size):
+
+        def test_template(self, factory=factory, key_size=key_size):
+            cipher = factory.new(get_tag_random("cipher", key_size),
+                                 factory.MODE_EAX,
+                                 nonce=b"nonce")
+            ct, mac = cipher.encrypt_and_digest(b"plaintext")
+
+            cipher = factory.new(get_tag_random("cipher", key_size),
+                                 factory.MODE_EAX,
+                                 nonce=b"nonce")
+            pt2 = cipher.decrypt_and_verify(ct, mac)
+
+            self.assertEqual(b"plaintext", pt2)
+
+        setattr(cls, "test_" + name, test_template)
+
+
+from Crypto.Cipher import DES, DES3, ARC2, CAST, Blowfish
+
+TestOtherCiphers.create_test("DES_" + str(DES.key_size), DES, DES.key_size)
+for ks in DES3.key_size:
+    TestOtherCiphers.create_test("DES3_" + str(ks), DES3, ks)
+for ks in ARC2.key_size:
+    TestOtherCiphers.create_test("ARC2_" + str(ks), ARC2, ks)
+for ks in CAST.key_size:
+    TestOtherCiphers.create_test("CAST_" + str(ks), CAST, ks)
+for ks in Blowfish.key_size:
+    TestOtherCiphers.create_test("Blowfish_" + str(ks), Blowfish, ks)
+
+
+def get_tests(config={}):
+    wycheproof_warnings = config.get('wycheproof_warnings')
+
+    tests = []
+    tests += list_test_cases(EaxTests)
+    tests += list_test_cases(EaxFSMTests)
+    tests += [ TestVectorsPaper() ]
+    tests += [ TestVectorsWycheproof(wycheproof_warnings) ]
+    tests += list_test_cases(TestOtherCiphers)
+    return tests
+
+
+if __name__ == '__main__':
+    suite = lambda: unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_GCM.py

@@ -0,0 +1,951 @@
+# ===================================================================
+#
+# Copyright (c) 2015, Legrandin <helderijs@gmail.com>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+# ===================================================================
+
+from __future__ import print_function
+
+import unittest
+from binascii import unhexlify
+
+from Crypto.SelfTest.st_common import list_test_cases
+from Crypto.SelfTest.loader import load_test_vectors, load_test_vectors_wycheproof
+
+from Crypto.Util.py3compat import tobytes, bchr
+from Crypto.Cipher import AES
+from Crypto.Hash import SHAKE128, SHA256
+
+from Crypto.Util.strxor import strxor
+
+
+def get_tag_random(tag, length):
+    return SHAKE128.new(data=tobytes(tag)).read(length)
+
+
+class GcmTests(unittest.TestCase):
+
+    key_128 = get_tag_random("key_128", 16)
+    nonce_96 = get_tag_random("nonce_128", 12)
+    data = get_tag_random("data", 128)
+
+    def test_loopback_128(self):
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        pt = get_tag_random("plaintext", 16 * 100)
+        ct = cipher.encrypt(pt)
+
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        pt2 = cipher.decrypt(ct)
+        self.assertEqual(pt, pt2)
+
+    def test_nonce(self):
+        # Nonce is optional (a random one will be created)
+        AES.new(self.key_128, AES.MODE_GCM)
+
+        cipher = AES.new(self.key_128, AES.MODE_GCM, self.nonce_96)
+        ct = cipher.encrypt(self.data)
+
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        self.assertEqual(ct, cipher.encrypt(self.data))
+
+    def test_nonce_must_be_bytes(self):
+        self.assertRaises(TypeError, AES.new, self.key_128, AES.MODE_GCM,
+                          nonce=u'test12345678')
+
+    def test_nonce_length(self):
+        # nonce can be of any length (but not empty)
+        self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_GCM,
+                          nonce=b"")
+
+        for x in range(1, 128):
+            cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=bchr(1) * x)
+            cipher.encrypt(bchr(1))
+
+    def test_block_size_128(self):
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        self.assertEqual(cipher.block_size, AES.block_size)
+
+    def test_nonce_attribute(self):
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        self.assertEqual(cipher.nonce, self.nonce_96)
+
+        # By default, a 15 bytes long nonce is randomly generated
+        nonce1 = AES.new(self.key_128, AES.MODE_GCM).nonce
+        nonce2 = AES.new(self.key_128, AES.MODE_GCM).nonce
+        self.assertEqual(len(nonce1), 16)
+        self.assertNotEqual(nonce1, nonce2)
+
+    def test_unknown_parameters(self):
+        self.assertRaises(TypeError, AES.new, self.key_128, AES.MODE_GCM,
+                          self.nonce_96, 7)
+        self.assertRaises(TypeError, AES.new, self.key_128, AES.MODE_GCM,
+                          nonce=self.nonce_96, unknown=7)
+
+        # But some are only known by the base cipher
+        # (e.g. use_aesni consumed by the AES module)
+        AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96,
+                use_aesni=False)
+
+    def test_null_encryption_decryption(self):
+        for func in "encrypt", "decrypt":
+            cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+            result = getattr(cipher, func)(b"")
+            self.assertEqual(result, b"")
+
+    def test_either_encrypt_or_decrypt(self):
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        cipher.encrypt(b"")
+        self.assertRaises(TypeError, cipher.decrypt, b"")
+
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        cipher.decrypt(b"")
+        self.assertRaises(TypeError, cipher.encrypt, b"")
+
+    def test_data_must_be_bytes(self):
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.encrypt, u'test1234567890-*')
+
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.decrypt, u'test1234567890-*')
+
+    def test_mac_len(self):
+        # Invalid MAC length
+        self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_GCM,
+                          nonce=self.nonce_96, mac_len=3)
+        self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_GCM,
+                          nonce=self.nonce_96, mac_len=16+1)
+
+        # Valid MAC length
+        for mac_len in range(5, 16 + 1):
+            cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96,
+                             mac_len=mac_len)
+            _, mac = cipher.encrypt_and_digest(self.data)
+            self.assertEqual(len(mac), mac_len)
+
+        # Default MAC length
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        _, mac = cipher.encrypt_and_digest(self.data)
+        self.assertEqual(len(mac), 16)
+
+    def test_invalid_mac(self):
+        from Crypto.Util.strxor import strxor_c
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        ct, mac = cipher.encrypt_and_digest(self.data)
+
+        invalid_mac = strxor_c(mac, 0x01)
+
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        self.assertRaises(ValueError, cipher.decrypt_and_verify, ct,
+                          invalid_mac)
+
+    def test_hex_mac(self):
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        mac_hex = cipher.hexdigest()
+        self.assertEqual(cipher.digest(), unhexlify(mac_hex))
+
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        cipher.hexverify(mac_hex)
+
+    def test_message_chunks(self):
+        # Validate that both associated data and plaintext/ciphertext
+        # can be broken up in chunks of arbitrary length
+
+        auth_data = get_tag_random("authenticated data", 127)
+        plaintext = get_tag_random("plaintext", 127)
+
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        cipher.update(auth_data)
+        ciphertext, ref_mac = cipher.encrypt_and_digest(plaintext)
+
+        def break_up(data, chunk_length):
+            return [data[i:i+chunk_length] for i in range(0, len(data),
+                    chunk_length)]
+
+        # Encryption
+        for chunk_length in 1, 2, 3, 7, 10, 13, 16, 40, 80, 128:
+
+            cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+
+            for chunk in break_up(auth_data, chunk_length):
+                cipher.update(chunk)
+            pt2 = b""
+            for chunk in break_up(ciphertext, chunk_length):
+                pt2 += cipher.decrypt(chunk)
+            self.assertEqual(plaintext, pt2)
+            cipher.verify(ref_mac)
+
+        # Decryption
+        for chunk_length in 1, 2, 3, 7, 10, 13, 16, 40, 80, 128:
+
+            cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+
+            for chunk in break_up(auth_data, chunk_length):
+                cipher.update(chunk)
+            ct2 = b""
+            for chunk in break_up(plaintext, chunk_length):
+                ct2 += cipher.encrypt(chunk)
+            self.assertEqual(ciphertext, ct2)
+            self.assertEqual(cipher.digest(), ref_mac)
+
+    def test_bytearray(self):
+
+        # Encrypt
+        key_ba = bytearray(self.key_128)
+        nonce_ba = bytearray(self.nonce_96)
+        header_ba = bytearray(self.data)
+        data_ba = bytearray(self.data)
+
+        cipher1 = AES.new(self.key_128,
+                          AES.MODE_GCM,
+                          nonce=self.nonce_96)
+        cipher1.update(self.data)
+        ct = cipher1.encrypt(self.data)
+        tag = cipher1.digest()
+
+        cipher2 = AES.new(key_ba,
+                          AES.MODE_GCM,
+                          nonce=nonce_ba)
+        key_ba[:3] = b"\xFF\xFF\xFF"
+        nonce_ba[:3] = b"\xFF\xFF\xFF"
+        cipher2.update(header_ba)
+        header_ba[:3] = b"\xFF\xFF\xFF"
+        ct_test = cipher2.encrypt(data_ba)
+        data_ba[:3] = b"\xFF\xFF\xFF"
+        tag_test = cipher2.digest()
+
+        self.assertEqual(ct, ct_test)
+        self.assertEqual(tag, tag_test)
+        self.assertEqual(cipher1.nonce, cipher2.nonce)
+
+        # Decrypt
+        key_ba = bytearray(self.key_128)
+        nonce_ba = bytearray(self.nonce_96)
+        header_ba = bytearray(self.data)
+        del data_ba
+
+        cipher4 = AES.new(key_ba,
+                          AES.MODE_GCM,
+                          nonce=nonce_ba)
+        key_ba[:3] = b"\xFF\xFF\xFF"
+        nonce_ba[:3] = b"\xFF\xFF\xFF"
+        cipher4.update(header_ba)
+        header_ba[:3] = b"\xFF\xFF\xFF"
+        pt_test = cipher4.decrypt_and_verify(bytearray(ct_test), bytearray(tag_test))
+
+        self.assertEqual(self.data, pt_test)
+
+    def test_memoryview(self):
+
+        # Encrypt
+        key_mv = memoryview(bytearray(self.key_128))
+        nonce_mv = memoryview(bytearray(self.nonce_96))
+        header_mv = memoryview(bytearray(self.data))
+        data_mv = memoryview(bytearray(self.data))
+
+        cipher1 = AES.new(self.key_128,
+                          AES.MODE_GCM,
+                          nonce=self.nonce_96)
+        cipher1.update(self.data)
+        ct = cipher1.encrypt(self.data)
+        tag = cipher1.digest()
+
+        cipher2 = AES.new(key_mv,
+                          AES.MODE_GCM,
+                          nonce=nonce_mv)
+        key_mv[:3] = b"\xFF\xFF\xFF"
+        nonce_mv[:3] = b"\xFF\xFF\xFF"
+        cipher2.update(header_mv)
+        header_mv[:3] = b"\xFF\xFF\xFF"
+        ct_test = cipher2.encrypt(data_mv)
+        data_mv[:3] = b"\xFF\xFF\xFF"
+        tag_test = cipher2.digest()
+
+        self.assertEqual(ct, ct_test)
+        self.assertEqual(tag, tag_test)
+        self.assertEqual(cipher1.nonce, cipher2.nonce)
+
+        # Decrypt
+        key_mv = memoryview(bytearray(self.key_128))
+        nonce_mv = memoryview(bytearray(self.nonce_96))
+        header_mv = memoryview(bytearray(self.data))
+        del data_mv
+
+        cipher4 = AES.new(key_mv,
+                          AES.MODE_GCM,
+                          nonce=nonce_mv)
+        key_mv[:3] = b"\xFF\xFF\xFF"
+        nonce_mv[:3] = b"\xFF\xFF\xFF"
+        cipher4.update(header_mv)
+        header_mv[:3] = b"\xFF\xFF\xFF"
+        pt_test = cipher4.decrypt_and_verify(memoryview(ct_test), memoryview(tag_test))
+
+        self.assertEqual(self.data, pt_test)
+
+    def test_output_param(self):
+
+        pt = b'5' * 128
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        ct = cipher.encrypt(pt)
+        tag = cipher.digest()
+
+        output = bytearray(128)
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        res = cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+        self.assertEqual(res, None)
+
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        res = cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+        self.assertEqual(res, None)
+
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        res, tag_out = cipher.encrypt_and_digest(pt, output=output)
+        self.assertEqual(ct, output)
+        self.assertEqual(res, None)
+        self.assertEqual(tag, tag_out)
+
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        res = cipher.decrypt_and_verify(ct, tag, output=output)
+        self.assertEqual(pt, output)
+        self.assertEqual(res, None)
+
+    def test_output_param_memoryview(self):
+
+        pt = b'5' * 128
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        ct = cipher.encrypt(pt)
+
+        output = memoryview(bytearray(128))
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+
+    def test_output_param_neg(self):
+        LEN_PT = 128
+
+        pt = b'5' * LEN_PT
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        ct = cipher.encrypt(pt)
+
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.encrypt, pt, output=b'0' * LEN_PT)
+
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.decrypt, ct, output=b'0' * LEN_PT)
+
+        shorter_output = bytearray(LEN_PT - 1)
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        self.assertRaises(ValueError, cipher.encrypt, pt, output=shorter_output)
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        self.assertRaises(ValueError, cipher.decrypt, ct, output=shorter_output)
+
+
+class GcmFSMTests(unittest.TestCase):
+
+    key_128 = get_tag_random("key_128", 16)
+    nonce_96 = get_tag_random("nonce_128", 12)
+    data = get_tag_random("data", 128)
+
+    def test_valid_init_encrypt_decrypt_digest_verify(self):
+        # No authenticated data, fixed plaintext
+        # Verify path INIT->ENCRYPT->DIGEST
+        cipher = AES.new(self.key_128, AES.MODE_GCM,
+                         nonce=self.nonce_96)
+        ct = cipher.encrypt(self.data)
+        mac = cipher.digest()
+
+        # Verify path INIT->DECRYPT->VERIFY
+        cipher = AES.new(self.key_128, AES.MODE_GCM,
+                         nonce=self.nonce_96)
+        cipher.decrypt(ct)
+        cipher.verify(mac)
+
+    def test_valid_init_update_digest_verify(self):
+        # No plaintext, fixed authenticated data
+        # Verify path INIT->UPDATE->DIGEST
+        cipher = AES.new(self.key_128, AES.MODE_GCM,
+                         nonce=self.nonce_96)
+        cipher.update(self.data)
+        mac = cipher.digest()
+
+        # Verify path INIT->UPDATE->VERIFY
+        cipher = AES.new(self.key_128, AES.MODE_GCM,
+                         nonce=self.nonce_96)
+        cipher.update(self.data)
+        cipher.verify(mac)
+
+    def test_valid_full_path(self):
+        # Fixed authenticated data, fixed plaintext
+        # Verify path INIT->UPDATE->ENCRYPT->DIGEST
+        cipher = AES.new(self.key_128, AES.MODE_GCM,
+                         nonce=self.nonce_96)
+        cipher.update(self.data)
+        ct = cipher.encrypt(self.data)
+        mac = cipher.digest()
+
+        # Verify path INIT->UPDATE->DECRYPT->VERIFY
+        cipher = AES.new(self.key_128, AES.MODE_GCM,
+                         nonce=self.nonce_96)
+        cipher.update(self.data)
+        cipher.decrypt(ct)
+        cipher.verify(mac)
+
+    def test_valid_init_digest(self):
+        # Verify path INIT->DIGEST
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        cipher.digest()
+
+    def test_valid_init_verify(self):
+        # Verify path INIT->VERIFY
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        mac = cipher.digest()
+
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        cipher.verify(mac)
+
+    def test_valid_multiple_encrypt_or_decrypt(self):
+        for method_name in "encrypt", "decrypt":
+            for auth_data in (None, b"333", self.data,
+                              self.data + b"3"):
+                if auth_data is None:
+                    assoc_len = None
+                else:
+                    assoc_len = len(auth_data)
+                cipher = AES.new(self.key_128, AES.MODE_GCM,
+                                 nonce=self.nonce_96)
+                if auth_data is not None:
+                    cipher.update(auth_data)
+                method = getattr(cipher, method_name)
+                method(self.data)
+                method(self.data)
+                method(self.data)
+                method(self.data)
+
+    def test_valid_multiple_digest_or_verify(self):
+        # Multiple calls to digest
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        cipher.update(self.data)
+        first_mac = cipher.digest()
+        for x in range(4):
+            self.assertEqual(first_mac, cipher.digest())
+
+        # Multiple calls to verify
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        cipher.update(self.data)
+        for x in range(5):
+            cipher.verify(first_mac)
+
+    def test_valid_encrypt_and_digest_decrypt_and_verify(self):
+        # encrypt_and_digest
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        cipher.update(self.data)
+        ct, mac = cipher.encrypt_and_digest(self.data)
+
+        # decrypt_and_verify
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        cipher.update(self.data)
+        pt = cipher.decrypt_and_verify(ct, mac)
+        self.assertEqual(self.data, pt)
+
+    def test_invalid_mixing_encrypt_decrypt(self):
+        # Once per method, with or without assoc. data
+        for method1_name, method2_name in (("encrypt", "decrypt"),
+                                           ("decrypt", "encrypt")):
+            for assoc_data_present in (True, False):
+                cipher = AES.new(self.key_128, AES.MODE_GCM,
+                                 nonce=self.nonce_96)
+                if assoc_data_present:
+                    cipher.update(self.data)
+                getattr(cipher, method1_name)(self.data)
+                self.assertRaises(TypeError, getattr(cipher, method2_name),
+                                  self.data)
+
+    def test_invalid_encrypt_or_update_after_digest(self):
+        for method_name in "encrypt", "update":
+            cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+            cipher.encrypt(self.data)
+            cipher.digest()
+            self.assertRaises(TypeError, getattr(cipher, method_name),
+                              self.data)
+
+            cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+            cipher.encrypt_and_digest(self.data)
+
+    def test_invalid_decrypt_or_update_after_verify(self):
+        cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+        ct = cipher.encrypt(self.data)
+        mac = cipher.digest()
+
+        for method_name in "decrypt", "update":
+            cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+            cipher.decrypt(ct)
+            cipher.verify(mac)
+            self.assertRaises(TypeError, getattr(cipher, method_name),
+                              self.data)
+
+            cipher = AES.new(self.key_128, AES.MODE_GCM, nonce=self.nonce_96)
+            cipher.decrypt_and_verify(ct, mac)
+            self.assertRaises(TypeError, getattr(cipher, method_name),
+                              self.data)
+
+
+class TestVectors(unittest.TestCase):
+    """Class exercising the GCM test vectors found in
+       http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/gcm/gcm-revised-spec.pdf"""
+
+    # List of test vectors, each made up of:
+    # - authenticated data
+    # - plaintext
+    # - ciphertext
+    # - MAC
+    # - AES key
+    # - nonce
+    test_vectors_hex = [
+        (
+            '',
+            '',
+            '',
+            '58e2fccefa7e3061367f1d57a4e7455a',
+            '00000000000000000000000000000000',
+            '000000000000000000000000'
+        ),
+        (
+            '',
+            '00000000000000000000000000000000',
+            '0388dace60b6a392f328c2b971b2fe78',
+            'ab6e47d42cec13bdf53a67b21257bddf',
+            '00000000000000000000000000000000',
+            '000000000000000000000000'
+        ),
+        (
+            '',
+            'd9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a72' +
+            '1c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b391aafd255',
+            '42831ec2217774244b7221b784d0d49ce3aa212f2c02a4e035c17e2329aca12e' +
+            '21d514b25466931c7d8f6a5aac84aa051ba30b396a0aac973d58e091473f5985',
+            '4d5c2af327cd64a62cf35abd2ba6fab4',
+            'feffe9928665731c6d6a8f9467308308',
+            'cafebabefacedbaddecaf888'
+        ),
+        (
+            'feedfacedeadbeeffeedfacedeadbeefabaddad2',
+            'd9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a72' +
+            '1c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39',
+            '42831ec2217774244b7221b784d0d49ce3aa212f2c02a4e035c17e2329aca12e' +
+            '21d514b25466931c7d8f6a5aac84aa051ba30b396a0aac973d58e091',
+            '5bc94fbc3221a5db94fae95ae7121a47',
+            'feffe9928665731c6d6a8f9467308308',
+            'cafebabefacedbaddecaf888'
+        ),
+        (
+            'feedfacedeadbeeffeedfacedeadbeefabaddad2',
+            'd9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a72' +
+            '1c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39',
+            '61353b4c2806934a777ff51fa22a4755699b2a714fcdc6f83766e5f97b6c7423' +
+            '73806900e49f24b22b097544d4896b424989b5e1ebac0f07c23f4598',
+            '3612d2e79e3b0785561be14aaca2fccb',
+            'feffe9928665731c6d6a8f9467308308',
+            'cafebabefacedbad'
+        ),
+        (
+            'feedfacedeadbeeffeedfacedeadbeefabaddad2',
+            'd9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a72' +
+            '1c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39',
+            '8ce24998625615b603a033aca13fb894be9112a5c3a211a8ba262a3cca7e2ca7' +
+            '01e4a9a4fba43c90ccdcb281d48c7c6fd62875d2aca417034c34aee5',
+            '619cc5aefffe0bfa462af43c1699d050',
+            'feffe9928665731c6d6a8f9467308308',
+            '9313225df88406e555909c5aff5269aa' +
+            '6a7a9538534f7da1e4c303d2a318a728c3c0c95156809539fcf0e2429a6b5254' +
+            '16aedbf5a0de6a57a637b39b'
+        ),
+        (
+            '',
+            '',
+            '',
+            'cd33b28ac773f74ba00ed1f312572435',
+            '000000000000000000000000000000000000000000000000',
+            '000000000000000000000000'
+        ),
+        (
+            '',
+            '00000000000000000000000000000000',
+            '98e7247c07f0fe411c267e4384b0f600',
+            '2ff58d80033927ab8ef4d4587514f0fb',
+            '000000000000000000000000000000000000000000000000',
+            '000000000000000000000000'
+        ),
+        (
+            '',
+            'd9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a72' +
+            '1c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b391aafd255',
+            '3980ca0b3c00e841eb06fac4872a2757859e1ceaa6efd984628593b40ca1e19c' +
+            '7d773d00c144c525ac619d18c84a3f4718e2448b2fe324d9ccda2710acade256',
+            '9924a7c8587336bfb118024db8674a14',
+            'feffe9928665731c6d6a8f9467308308feffe9928665731c',
+            'cafebabefacedbaddecaf888'
+        ),
+        (
+            'feedfacedeadbeeffeedfacedeadbeefabaddad2',
+            'd9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a72' +
+            '1c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39',
+            '3980ca0b3c00e841eb06fac4872a2757859e1ceaa6efd984628593b40ca1e19c' +
+            '7d773d00c144c525ac619d18c84a3f4718e2448b2fe324d9ccda2710',
+            '2519498e80f1478f37ba55bd6d27618c',
+            'feffe9928665731c6d6a8f9467308308feffe9928665731c',
+            'cafebabefacedbaddecaf888'
+        ),
+        (
+            'feedfacedeadbeeffeedfacedeadbeefabaddad2',
+            'd9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a72' +
+            '1c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39',
+            '0f10f599ae14a154ed24b36e25324db8c566632ef2bbb34f8347280fc4507057' +
+            'fddc29df9a471f75c66541d4d4dad1c9e93a19a58e8b473fa0f062f7',
+            '65dcc57fcf623a24094fcca40d3533f8',
+            'feffe9928665731c6d6a8f9467308308feffe9928665731c',
+            'cafebabefacedbad'
+        ),
+        (
+            'feedfacedeadbeeffeedfacedeadbeefabaddad2',
+            'd9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a72' +
+            '1c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39',
+            'd27e88681ce3243c4830165a8fdcf9ff1de9a1d8e6b447ef6ef7b79828666e45' +
+            '81e79012af34ddd9e2f037589b292db3e67c036745fa22e7e9b7373b',
+            'dcf566ff291c25bbb8568fc3d376a6d9',
+            'feffe9928665731c6d6a8f9467308308feffe9928665731c',
+            '9313225df88406e555909c5aff5269aa' +
+            '6a7a9538534f7da1e4c303d2a318a728c3c0c95156809539fcf0e2429a6b5254' +
+            '16aedbf5a0de6a57a637b39b'
+        ),
+        (
+            '',
+            '',
+            '',
+            '530f8afbc74536b9a963b4f1c4cb738b',
+            '0000000000000000000000000000000000000000000000000000000000000000',
+            '000000000000000000000000'
+        ),
+        (
+            '',
+            '00000000000000000000000000000000',
+            'cea7403d4d606b6e074ec5d3baf39d18',
+            'd0d1c8a799996bf0265b98b5d48ab919',
+            '0000000000000000000000000000000000000000000000000000000000000000',
+            '000000000000000000000000'
+        ),
+        (   '',
+            'd9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a72' +
+            '1c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b391aafd255',
+            '522dc1f099567d07f47f37a32a84427d643a8cdcbfe5c0c97598a2bd2555d1aa' +
+            '8cb08e48590dbb3da7b08b1056828838c5f61e6393ba7a0abcc9f662898015ad',
+            'b094dac5d93471bdec1a502270e3cc6c',
+            'feffe9928665731c6d6a8f9467308308feffe9928665731c6d6a8f9467308308',
+            'cafebabefacedbaddecaf888'
+        ),
+        (
+            'feedfacedeadbeeffeedfacedeadbeefabaddad2',
+            'd9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a72' +
+            '1c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39',
+            '522dc1f099567d07f47f37a32a84427d643a8cdcbfe5c0c97598a2bd2555d1aa' +
+            '8cb08e48590dbb3da7b08b1056828838c5f61e6393ba7a0abcc9f662',
+            '76fc6ece0f4e1768cddf8853bb2d551b',
+            'feffe9928665731c6d6a8f9467308308feffe9928665731c6d6a8f9467308308',
+            'cafebabefacedbaddecaf888'
+        ),
+        (
+            'feedfacedeadbeeffeedfacedeadbeefabaddad2',
+            'd9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a72' +
+            '1c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39',
+            'c3762df1ca787d32ae47c13bf19844cbaf1ae14d0b976afac52ff7d79bba9de0' +
+            'feb582d33934a4f0954cc2363bc73f7862ac430e64abe499f47c9b1f',
+            '3a337dbf46a792c45e454913fe2ea8f2',
+            'feffe9928665731c6d6a8f9467308308feffe9928665731c6d6a8f9467308308',
+            'cafebabefacedbad'
+        ),
+        (
+            'feedfacedeadbeeffeedfacedeadbeefabaddad2',
+            'd9313225f88406e5a55909c5aff5269a86a7a9531534f7da2e4c303d8a318a72' +
+            '1c3c0c95956809532fcf0e2449a6b525b16aedf5aa0de657ba637b39',
+            '5a8def2f0c9e53f1f75d7853659e2a20eeb2b22aafde6419a058ab4f6f746bf4' +
+            '0fc0c3b780f244452da3ebf1c5d82cdea2418997200ef82e44ae7e3f',
+            'a44a8266ee1c8eb0c8b5d4cf5ae9f19a',
+            'feffe9928665731c6d6a8f9467308308feffe9928665731c6d6a8f9467308308',
+            '9313225df88406e555909c5aff5269aa' +
+            '6a7a9538534f7da1e4c303d2a318a728c3c0c95156809539fcf0e2429a6b5254' +
+            '16aedbf5a0de6a57a637b39b'
+        )
+    ]
+
+    test_vectors = [[unhexlify(x) for x in tv] for tv in test_vectors_hex]
+
+    def runTest(self):
+        for assoc_data, pt, ct, mac, key, nonce in self.test_vectors:
+
+            # Encrypt
+            cipher = AES.new(key, AES.MODE_GCM, nonce, mac_len=len(mac))
+            cipher.update(assoc_data)
+            ct2, mac2 = cipher.encrypt_and_digest(pt)
+            self.assertEqual(ct, ct2)
+            self.assertEqual(mac, mac2)
+
+            # Decrypt
+            cipher = AES.new(key, AES.MODE_GCM, nonce, mac_len=len(mac))
+            cipher.update(assoc_data)
+            pt2 = cipher.decrypt_and_verify(ct, mac)
+            self.assertEqual(pt, pt2)
+
+
+class TestVectorsGueronKrasnov(unittest.TestCase):
+    """Class exercising the GCM test vectors found in
+       'The fragility of AES-GCM authentication algorithm', Gueron, Krasnov
+       https://eprint.iacr.org/2013/157.pdf"""
+
+    def test_1(self):
+        key = unhexlify("3da6c536d6295579c0959a7043efb503")
+        iv  = unhexlify("2b926197d34e091ef722db94")
+        aad = unhexlify("00000000000000000000000000000000" +
+                        "000102030405060708090a0b0c0d0e0f" +
+                        "101112131415161718191a1b1c1d1e1f" +
+                        "202122232425262728292a2b2c2d2e2f" +
+                        "303132333435363738393a3b3c3d3e3f")
+        digest = unhexlify("69dd586555ce3fcc89663801a71d957b")
+
+        cipher = AES.new(key, AES.MODE_GCM, iv).update(aad)
+        self.assertEqual(digest, cipher.digest())
+
+    def test_2(self):
+        key = unhexlify("843ffcf5d2b72694d19ed01d01249412")
+        iv  = unhexlify("dbcca32ebf9b804617c3aa9e")
+        aad = unhexlify("00000000000000000000000000000000" +
+                        "101112131415161718191a1b1c1d1e1f")
+        pt  = unhexlify("000102030405060708090a0b0c0d0e0f" +
+                        "101112131415161718191a1b1c1d1e1f" +
+                        "202122232425262728292a2b2c2d2e2f" +
+                        "303132333435363738393a3b3c3d3e3f" +
+                        "404142434445464748494a4b4c4d4e4f")
+        ct  = unhexlify("6268c6fa2a80b2d137467f092f657ac0" +
+                        "4d89be2beaa623d61b5a868c8f03ff95" +
+                        "d3dcee23ad2f1ab3a6c80eaf4b140eb0" +
+                        "5de3457f0fbc111a6b43d0763aa422a3" +
+                        "013cf1dc37fe417d1fbfc449b75d4cc5")
+        digest = unhexlify("3b629ccfbc1119b7319e1dce2cd6fd6d")
+
+        cipher = AES.new(key, AES.MODE_GCM, iv).update(aad)
+        ct2, digest2 = cipher.encrypt_and_digest(pt)
+
+        self.assertEqual(ct, ct2)
+        self.assertEqual(digest, digest2)
+
+
+class NISTTestVectorsGCM(unittest.TestCase):
+
+    def __init__(self, a):
+        self.use_clmul = True
+        unittest.TestCase.__init__(self, a)
+
+
+class NISTTestVectorsGCM_no_clmul(unittest.TestCase):
+
+    def __init__(self, a):
+        self.use_clmul = False
+        unittest.TestCase.__init__(self, a)
+
+
+test_vectors_nist = load_test_vectors(
+                        ("Cipher", "AES"),
+                        "gcmDecrypt128.rsp",
+                        "GCM decrypt",
+                        {"count": lambda x: int(x)}) or []
+
+test_vectors_nist += load_test_vectors(
+                        ("Cipher", "AES"),
+                        "gcmEncryptExtIV128.rsp",
+                        "GCM encrypt",
+                        {"count": lambda x: int(x)}) or []
+
+for idx, tv in enumerate(test_vectors_nist):
+
+    # The test vector file contains some directive lines
+    if isinstance(tv, str):
+        continue
+
+    def single_test(self, tv=tv):
+
+        self.description = tv.desc
+        cipher = AES.new(tv.key, AES.MODE_GCM, nonce=tv.iv,
+                             mac_len=len(tv.tag), use_clmul=self.use_clmul)
+        cipher.update(tv.aad)
+        if "FAIL" in tv.others:
+            self.assertRaises(ValueError, cipher.decrypt_and_verify,
+                                  tv.ct, tv.tag)
+        else:
+            pt = cipher.decrypt_and_verify(tv.ct, tv.tag)
+            self.assertEqual(pt, tv.pt)
+
+    setattr(NISTTestVectorsGCM, "test_%d" % idx, single_test)
+    setattr(NISTTestVectorsGCM_no_clmul, "test_%d" % idx, single_test)
+
+
+class TestVectorsWycheproof(unittest.TestCase):
+
+    def __init__(self, wycheproof_warnings, **extra_params):
+        unittest.TestCase.__init__(self)
+        self._wycheproof_warnings = wycheproof_warnings
+        self._extra_params = extra_params
+        self._id = "None"
+
+    def setUp(self):
+
+        def filter_tag(group):
+            return group['tagSize'] // 8
+
+        self.tv = load_test_vectors_wycheproof(("Cipher", "wycheproof"),
+                                               "aes_gcm_test.json",
+                                               "Wycheproof GCM",
+                                               group_tag={'tag_size': filter_tag})
+
+    def shortDescription(self):
+        return self._id
+
+    def warn(self, tv):
+        if tv.warning and self._wycheproof_warnings:
+            import warnings
+            warnings.warn("Wycheproof warning: %s (%s)" % (self._id, tv.comment))
+
+    def test_encrypt(self, tv):
+        self._id = "Wycheproof Encrypt GCM Test #" + str(tv.id)
+
+        try:
+            cipher = AES.new(tv.key, AES.MODE_GCM, tv.iv, mac_len=tv.tag_size,
+                        **self._extra_params)
+        except ValueError as e:
+            if len(tv.iv) == 0 and "Nonce cannot be empty" in str(e):
+                return
+            raise e
+
+        cipher.update(tv.aad)
+        ct, tag = cipher.encrypt_and_digest(tv.msg)
+        if tv.valid:
+            self.assertEqual(ct, tv.ct)
+            self.assertEqual(tag, tv.tag)
+            self.warn(tv)
+
+    def test_decrypt(self, tv):
+        self._id = "Wycheproof Decrypt GCM Test #" + str(tv.id)
+
+        try:
+            cipher = AES.new(tv.key, AES.MODE_GCM, tv.iv, mac_len=tv.tag_size,
+                        **self._extra_params)
+        except ValueError as e:
+            if len(tv.iv) == 0 and "Nonce cannot be empty" in str(e):
+                return
+            raise e
+
+        cipher.update(tv.aad)
+        try:
+            pt = cipher.decrypt_and_verify(tv.ct, tv.tag)
+        except ValueError:
+            assert not tv.valid
+        else:
+            assert tv.valid
+            self.assertEqual(pt, tv.msg)
+            self.warn(tv)
+
+    def test_corrupt_decrypt(self, tv):
+        self._id = "Wycheproof Corrupt Decrypt GCM Test #" + str(tv.id)
+        if len(tv.iv) == 0 or len(tv.ct) < 1:
+            return
+        cipher = AES.new(tv.key, AES.MODE_GCM, tv.iv, mac_len=tv.tag_size,
+                    **self._extra_params)
+        cipher.update(tv.aad)
+        ct_corrupt = strxor(tv.ct, b"\x00" * (len(tv.ct) - 1) + b"\x01")
+        self.assertRaises(ValueError, cipher.decrypt_and_verify, ct_corrupt, tv.tag)
+
+    def runTest(self):
+
+        for tv in self.tv:
+            self.test_encrypt(tv)
+            self.test_decrypt(tv)
+            self.test_corrupt_decrypt(tv)
+
+
+class TestVariableLength(unittest.TestCase):
+
+    def __init__(self, **extra_params):
+        unittest.TestCase.__init__(self)
+        self._extra_params = extra_params
+
+    def runTest(self):
+        key = b'0' * 16
+        h = SHA256.new()
+
+        for length in range(160):
+            nonce = '{0:04d}'.format(length).encode('utf-8')
+            data = bchr(length) * length
+            cipher = AES.new(key, AES.MODE_GCM, nonce=nonce, **self._extra_params)
+            ct, tag = cipher.encrypt_and_digest(data)
+            h.update(ct)
+            h.update(tag)
+
+        self.assertEqual(h.hexdigest(), "7b7eb1ffbe67a2e53a912067c0ec8e62ebc7ce4d83490ea7426941349811bdf4")
+
+
+def get_tests(config={}):
+    from Crypto.Util import _cpu_features
+
+    wycheproof_warnings = config.get('wycheproof_warnings')
+
+    tests = []
+    tests += list_test_cases(GcmTests)
+    tests += list_test_cases(GcmFSMTests)
+    tests += [TestVectors()]
+    tests += [TestVectorsWycheproof(wycheproof_warnings)]
+    tests += list_test_cases(TestVectorsGueronKrasnov)
+    tests += [TestVariableLength()]
+    if config.get('slow_tests'):
+        tests += list_test_cases(NISTTestVectorsGCM)
+
+    if _cpu_features.have_clmul():
+        tests += [TestVectorsWycheproof(wycheproof_warnings, use_clmul=False)]
+        tests += [TestVariableLength(use_clmul=False)]
+        if config.get('slow_tests'):
+            tests += list_test_cases(NISTTestVectorsGCM_no_clmul)
+    else:
+        print("Skipping test of PCLMULDQD in AES GCM")
+
+    return tests
+
+
+if __name__ == '__main__':
+    def suite():
+        unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_OCB.py

@@ -0,0 +1,845 @@
+# ===================================================================
+#
+# Copyright (c) 2014, Legrandin <helderijs@gmail.com>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+# ===================================================================
+
+import unittest
+from binascii import unhexlify
+
+from Crypto.Util.py3compat import b, tobytes, bchr
+from Crypto.Util.number import long_to_bytes
+from Crypto.SelfTest.loader import load_test_vectors
+from Crypto.SelfTest.st_common import list_test_cases
+
+from Crypto.Cipher import AES
+from Crypto.Hash import SHAKE128
+
+
+def get_tag_random(tag, length):
+    return SHAKE128.new(data=tobytes(tag)).read(length)
+
+
+class OcbTests(unittest.TestCase):
+
+    key_128 = get_tag_random("key_128", 16)
+    nonce_96 = get_tag_random("nonce_128", 12)
+    data = get_tag_random("data", 128)
+
+    def test_loopback_128(self):
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        pt = get_tag_random("plaintext", 16 * 100)
+        ct, mac = cipher.encrypt_and_digest(pt)
+
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        pt2 = cipher.decrypt_and_verify(ct, mac)
+        self.assertEqual(pt, pt2)
+
+    def test_nonce(self):
+        # Nonce is optional
+        AES.new(self.key_128, AES.MODE_OCB)
+
+        cipher = AES.new(self.key_128, AES.MODE_OCB, self.nonce_96)
+        ct = cipher.encrypt(self.data)
+
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        self.assertEqual(ct, cipher.encrypt(self.data))
+
+    def test_nonce_must_be_bytes(self):
+        self.assertRaises(TypeError, AES.new, self.key_128, AES.MODE_OCB,
+                          nonce=u'test12345678')
+
+    def test_nonce_length(self):
+        # nonce cannot be empty
+        self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_OCB,
+                          nonce=b(""))
+
+        # nonce can be up to 15 bytes long
+        for length in range(1, 16):
+            AES.new(self.key_128, AES.MODE_OCB, nonce=self.data[:length])
+
+        self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_OCB,
+                          nonce=self.data)
+
+    def test_block_size_128(self):
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        self.assertEqual(cipher.block_size, AES.block_size)
+
+        # By default, a 15 bytes long nonce is randomly generated
+        nonce1 = AES.new(self.key_128, AES.MODE_OCB).nonce
+        nonce2 = AES.new(self.key_128, AES.MODE_OCB).nonce
+        self.assertEqual(len(nonce1), 15)
+        self.assertNotEqual(nonce1, nonce2)
+
+    def test_nonce_attribute(self):
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        self.assertEqual(cipher.nonce, self.nonce_96)
+
+        # By default, a 15 bytes long nonce is randomly generated
+        nonce1 = AES.new(self.key_128, AES.MODE_OCB).nonce
+        nonce2 = AES.new(self.key_128, AES.MODE_OCB).nonce
+        self.assertEqual(len(nonce1), 15)
+        self.assertNotEqual(nonce1, nonce2)
+
+    def test_unknown_parameters(self):
+        self.assertRaises(TypeError, AES.new, self.key_128, AES.MODE_OCB,
+                          self.nonce_96, 7)
+        self.assertRaises(TypeError, AES.new, self.key_128, AES.MODE_OCB,
+                          nonce=self.nonce_96, unknown=7)
+
+        # But some are only known by the base cipher
+        # (e.g. use_aesni consumed by the AES module)
+        AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96,
+                use_aesni=False)
+
+    def test_null_encryption_decryption(self):
+        for func in "encrypt", "decrypt":
+            cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+            result = getattr(cipher, func)(b(""))
+            self.assertEqual(result, b(""))
+
+    def test_either_encrypt_or_decrypt(self):
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        cipher.encrypt(b("xyz"))
+        self.assertRaises(TypeError, cipher.decrypt, b("xyz"))
+
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        cipher.decrypt(b("xyz"))
+        self.assertRaises(TypeError, cipher.encrypt, b("xyz"))
+
+    def test_data_must_be_bytes(self):
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.encrypt, u'test1234567890-*')
+
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.decrypt, u'test1234567890-*')
+
+    def test_mac_len(self):
+        # Invalid MAC length
+        self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_OCB,
+                          nonce=self.nonce_96, mac_len=7)
+        self.assertRaises(ValueError, AES.new, self.key_128, AES.MODE_OCB,
+                          nonce=self.nonce_96, mac_len=16+1)
+
+        # Valid MAC length
+        for mac_len in range(8, 16 + 1):
+            cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96,
+                             mac_len=mac_len)
+            _, mac = cipher.encrypt_and_digest(self.data)
+            self.assertEqual(len(mac), mac_len)
+
+        # Default MAC length
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        _, mac = cipher.encrypt_and_digest(self.data)
+        self.assertEqual(len(mac), 16)
+
+    def test_invalid_mac(self):
+        from Crypto.Util.strxor import strxor_c
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        ct, mac = cipher.encrypt_and_digest(self.data)
+
+        invalid_mac = strxor_c(mac, 0x01)
+
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        self.assertRaises(ValueError, cipher.decrypt_and_verify, ct,
+                          invalid_mac)
+
+    def test_hex_mac(self):
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        mac_hex = cipher.hexdigest()
+        self.assertEqual(cipher.digest(), unhexlify(mac_hex))
+
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        cipher.hexverify(mac_hex)
+
+    def test_message_chunks(self):
+        # Validate that both associated data and plaintext/ciphertext
+        # can be broken up in chunks of arbitrary length
+
+        auth_data = get_tag_random("authenticated data", 127)
+        plaintext = get_tag_random("plaintext", 127)
+
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        cipher.update(auth_data)
+        ciphertext, ref_mac = cipher.encrypt_and_digest(plaintext)
+
+        def break_up(data, chunk_length):
+            return [data[i:i+chunk_length] for i in range(0, len(data),
+                    chunk_length)]
+
+        # Encryption
+        for chunk_length in 1, 2, 3, 7, 10, 13, 16, 40, 80, 128:
+
+            cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+
+            for chunk in break_up(auth_data, chunk_length):
+                cipher.update(chunk)
+            pt2 = b("")
+            for chunk in break_up(ciphertext, chunk_length):
+                pt2 += cipher.decrypt(chunk)
+            pt2 += cipher.decrypt()
+            self.assertEqual(plaintext, pt2)
+            cipher.verify(ref_mac)
+
+        # Decryption
+        for chunk_length in 1, 2, 3, 7, 10, 13, 16, 40, 80, 128:
+
+            cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+
+            for chunk in break_up(auth_data, chunk_length):
+                cipher.update(chunk)
+            ct2 = b("")
+            for chunk in break_up(plaintext, chunk_length):
+                ct2 += cipher.encrypt(chunk)
+            ct2 += cipher.encrypt()
+            self.assertEqual(ciphertext, ct2)
+            self.assertEqual(cipher.digest(), ref_mac)
+
+    def test_bytearray(self):
+
+        # Encrypt
+        key_ba = bytearray(self.key_128)
+        nonce_ba = bytearray(self.nonce_96)
+        header_ba = bytearray(self.data)
+        data_ba = bytearray(self.data)
+
+        cipher1 = AES.new(self.key_128,
+                          AES.MODE_OCB,
+                          nonce=self.nonce_96)
+        cipher1.update(self.data)
+        ct = cipher1.encrypt(self.data) + cipher1.encrypt()
+        tag = cipher1.digest()
+
+        cipher2 = AES.new(key_ba,
+                          AES.MODE_OCB,
+                          nonce=nonce_ba)
+        key_ba[:3] = b"\xFF\xFF\xFF"
+        nonce_ba[:3] = b"\xFF\xFF\xFF"
+        cipher2.update(header_ba)
+        header_ba[:3] = b"\xFF\xFF\xFF"
+        ct_test = cipher2.encrypt(data_ba) + cipher2.encrypt()
+        data_ba[:3] = b"\xFF\xFF\xFF"
+        tag_test = cipher2.digest()
+
+        self.assertEqual(ct, ct_test)
+        self.assertEqual(tag, tag_test)
+        self.assertEqual(cipher1.nonce, cipher2.nonce)
+
+        # Decrypt
+        key_ba = bytearray(self.key_128)
+        nonce_ba = bytearray(self.nonce_96)
+        header_ba = bytearray(self.data)
+        del data_ba
+
+        cipher4 = AES.new(key_ba,
+                          AES.MODE_OCB,
+                          nonce=nonce_ba)
+        key_ba[:3] = b"\xFF\xFF\xFF"
+        nonce_ba[:3] = b"\xFF\xFF\xFF"
+        cipher4.update(header_ba)
+        header_ba[:3] = b"\xFF\xFF\xFF"
+        pt_test = cipher4.decrypt_and_verify(bytearray(ct_test), bytearray(tag_test))
+
+        self.assertEqual(self.data, pt_test)
+
+    def test_memoryview(self):
+
+        # Encrypt
+        key_mv = memoryview(bytearray(self.key_128))
+        nonce_mv = memoryview(bytearray(self.nonce_96))
+        header_mv = memoryview(bytearray(self.data))
+        data_mv = memoryview(bytearray(self.data))
+
+        cipher1 = AES.new(self.key_128,
+                          AES.MODE_OCB,
+                          nonce=self.nonce_96)
+        cipher1.update(self.data)
+        ct = cipher1.encrypt(self.data) + cipher1.encrypt()
+        tag = cipher1.digest()
+
+        cipher2 = AES.new(key_mv,
+                          AES.MODE_OCB,
+                          nonce=nonce_mv)
+        key_mv[:3] = b"\xFF\xFF\xFF"
+        nonce_mv[:3] = b"\xFF\xFF\xFF"
+        cipher2.update(header_mv)
+        header_mv[:3] = b"\xFF\xFF\xFF"
+        ct_test = cipher2.encrypt(data_mv) + cipher2.encrypt()
+        data_mv[:3] = b"\xFF\xFF\xFF"
+        tag_test = cipher2.digest()
+
+        self.assertEqual(ct, ct_test)
+        self.assertEqual(tag, tag_test)
+        self.assertEqual(cipher1.nonce, cipher2.nonce)
+
+        # Decrypt
+        key_mv = memoryview(bytearray(self.key_128))
+        nonce_mv = memoryview(bytearray(self.nonce_96))
+        header_mv = memoryview(bytearray(self.data))
+        del data_mv
+
+        cipher4 = AES.new(key_mv,
+                          AES.MODE_OCB,
+                          nonce=nonce_mv)
+        key_mv[:3] = b"\xFF\xFF\xFF"
+        nonce_mv[:3] = b"\xFF\xFF\xFF"
+        cipher4.update(header_mv)
+        header_mv[:3] = b"\xFF\xFF\xFF"
+        pt_test = cipher4.decrypt_and_verify(memoryview(ct_test), memoryview(tag_test))
+
+        self.assertEqual(self.data, pt_test)
+
+
+class OcbFSMTests(unittest.TestCase):
+
+    key_128 = get_tag_random("key_128", 16)
+    nonce_96 = get_tag_random("nonce_128", 12)
+    data = get_tag_random("data", 128)
+
+    def test_valid_init_encrypt_decrypt_digest_verify(self):
+        # No authenticated data, fixed plaintext
+        # Verify path INIT->ENCRYPT->ENCRYPT(NONE)->DIGEST
+        cipher = AES.new(self.key_128, AES.MODE_OCB,
+                         nonce=self.nonce_96)
+        ct = cipher.encrypt(self.data)
+        ct += cipher.encrypt()
+        mac = cipher.digest()
+
+        # Verify path INIT->DECRYPT->DECRYPT(NONCE)->VERIFY
+        cipher = AES.new(self.key_128, AES.MODE_OCB,
+                         nonce=self.nonce_96)
+        cipher.decrypt(ct)
+        cipher.decrypt()
+        cipher.verify(mac)
+
+    def test_invalid_init_encrypt_decrypt_digest_verify(self):
+        # No authenticated data, fixed plaintext
+        # Verify path INIT->ENCRYPT->DIGEST
+        cipher = AES.new(self.key_128, AES.MODE_OCB,
+                         nonce=self.nonce_96)
+        ct = cipher.encrypt(self.data)
+        self.assertRaises(TypeError, cipher.digest)
+
+        # Verify path INIT->DECRYPT->VERIFY
+        cipher = AES.new(self.key_128, AES.MODE_OCB,
+                         nonce=self.nonce_96)
+        cipher.decrypt(ct)
+        self.assertRaises(TypeError, cipher.verify)
+
+    def test_valid_init_update_digest_verify(self):
+        # No plaintext, fixed authenticated data
+        # Verify path INIT->UPDATE->DIGEST
+        cipher = AES.new(self.key_128, AES.MODE_OCB,
+                         nonce=self.nonce_96)
+        cipher.update(self.data)
+        mac = cipher.digest()
+
+        # Verify path INIT->UPDATE->VERIFY
+        cipher = AES.new(self.key_128, AES.MODE_OCB,
+                         nonce=self.nonce_96)
+        cipher.update(self.data)
+        cipher.verify(mac)
+
+    def test_valid_full_path(self):
+        # Fixed authenticated data, fixed plaintext
+        # Verify path INIT->UPDATE->ENCRYPT->ENCRYPT(NONE)->DIGEST
+        cipher = AES.new(self.key_128, AES.MODE_OCB,
+                         nonce=self.nonce_96)
+        cipher.update(self.data)
+        ct = cipher.encrypt(self.data)
+        ct += cipher.encrypt()
+        mac = cipher.digest()
+
+        # Verify path INIT->UPDATE->DECRYPT->DECRYPT(NONE)->VERIFY
+        cipher = AES.new(self.key_128, AES.MODE_OCB,
+                         nonce=self.nonce_96)
+        cipher.update(self.data)
+        cipher.decrypt(ct)
+        cipher.decrypt()
+        cipher.verify(mac)
+
+        # Verify path INIT->UPDATE->ENCRYPT->ENCRYPT_AND_DIGEST
+        cipher = AES.new(self.key_128, AES.MODE_OCB,
+                         nonce=self.nonce_96)
+        cipher.update(self.data)
+        ct1 = cipher.encrypt(self.data[:2])
+        ct2, mac = cipher.encrypt_and_digest(self.data[2:])
+
+        # Verify path INIT->UPDATE->DECRYPT->DECRYPT_AND_VERIFY
+        cipher = AES.new(self.key_128, AES.MODE_OCB,
+                         nonce=self.nonce_96)
+        cipher.update(self.data)
+        cipher.decrypt(ct1)
+        cipher.decrypt_and_verify(ct2, mac)
+
+    def test_invalid_encrypt_after_final(self):
+        cipher = AES.new(self.key_128, AES.MODE_OCB,
+                         nonce=self.nonce_96)
+        cipher.update(self.data)
+        cipher.encrypt(self.data)
+        cipher.encrypt()
+        self.assertRaises(TypeError, cipher.encrypt, self.data)
+
+    def test_invalid_decrypt_after_final(self):
+        cipher = AES.new(self.key_128, AES.MODE_OCB,
+                         nonce=self.nonce_96)
+        cipher.update(self.data)
+        cipher.decrypt(self.data)
+        cipher.decrypt()
+        self.assertRaises(TypeError, cipher.decrypt, self.data)
+
+    def test_valid_init_digest(self):
+        # Verify path INIT->DIGEST
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        cipher.digest()
+
+    def test_valid_init_verify(self):
+        # Verify path INIT->VERIFY
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        mac = cipher.digest()
+
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        cipher.verify(mac)
+
+    def test_valid_multiple_encrypt_or_decrypt(self):
+        for method_name in "encrypt", "decrypt":
+            for auth_data in (None, b("333"), self.data,
+                              self.data + b("3")):
+                cipher = AES.new(self.key_128, AES.MODE_OCB,
+                                 nonce=self.nonce_96)
+                if auth_data is not None:
+                    cipher.update(auth_data)
+                method = getattr(cipher, method_name)
+                method(self.data)
+                method(self.data)
+                method(self.data)
+                method(self.data)
+                method()
+
+    def test_valid_multiple_digest_or_verify(self):
+        # Multiple calls to digest
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        cipher.update(self.data)
+        first_mac = cipher.digest()
+        for x in range(4):
+            self.assertEqual(first_mac, cipher.digest())
+
+        # Multiple calls to verify
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        cipher.update(self.data)
+        for x in range(5):
+            cipher.verify(first_mac)
+
+    def test_valid_encrypt_and_digest_decrypt_and_verify(self):
+        # encrypt_and_digest
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        cipher.update(self.data)
+        ct, mac = cipher.encrypt_and_digest(self.data)
+
+        # decrypt_and_verify
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        cipher.update(self.data)
+        pt = cipher.decrypt_and_verify(ct, mac)
+        self.assertEqual(self.data, pt)
+
+    def test_invalid_mixing_encrypt_decrypt(self):
+        # Once per method, with or without assoc. data
+        for method1_name, method2_name in (("encrypt", "decrypt"),
+                                           ("decrypt", "encrypt")):
+            for assoc_data_present in (True, False):
+                cipher = AES.new(self.key_128, AES.MODE_OCB,
+                                 nonce=self.nonce_96)
+                if assoc_data_present:
+                    cipher.update(self.data)
+                getattr(cipher, method1_name)(self.data)
+                self.assertRaises(TypeError, getattr(cipher, method2_name),
+                                  self.data)
+
+    def test_invalid_encrypt_or_update_after_digest(self):
+        for method_name in "encrypt", "update":
+            cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+            cipher.encrypt(self.data)
+            cipher.encrypt()
+            cipher.digest()
+            self.assertRaises(TypeError, getattr(cipher, method_name),
+                              self.data)
+
+            cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+            cipher.encrypt_and_digest(self.data)
+
+    def test_invalid_decrypt_or_update_after_verify(self):
+        cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+        ct = cipher.encrypt(self.data)
+        ct += cipher.encrypt()
+        mac = cipher.digest()
+
+        for method_name in "decrypt", "update":
+            cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+            cipher.decrypt(ct)
+            cipher.decrypt()
+            cipher.verify(mac)
+            self.assertRaises(TypeError, getattr(cipher, method_name),
+                              self.data)
+
+            cipher = AES.new(self.key_128, AES.MODE_OCB, nonce=self.nonce_96)
+            cipher.decrypt_and_verify(ct, mac)
+            self.assertRaises(TypeError, getattr(cipher, method_name),
+                              self.data)
+
+
+def algo_rfc7253(keylen, taglen, noncelen):
+    """Implement the algorithm at page 18 of RFC 7253"""
+
+    key = bchr(0) * (keylen // 8 - 1) + bchr(taglen)
+    C = b""
+
+    for i in range(128):
+        S = bchr(0) * i
+
+        N = long_to_bytes(3 * i + 1, noncelen // 8)
+        cipher = AES.new(key, AES.MODE_OCB, nonce=N, mac_len=taglen // 8)
+        cipher.update(S)
+        C += cipher.encrypt(S) + cipher.encrypt() + cipher.digest()
+
+        N = long_to_bytes(3 * i + 2, noncelen // 8)
+        cipher = AES.new(key, AES.MODE_OCB, nonce=N, mac_len=taglen // 8)
+        C += cipher.encrypt(S) + cipher.encrypt() + cipher.digest()
+
+        N = long_to_bytes(3 * i + 3, noncelen // 8)
+        cipher = AES.new(key, AES.MODE_OCB, nonce=N, mac_len=taglen // 8)
+        cipher.update(S)
+        C += cipher.encrypt() + cipher.digest()
+
+    N = long_to_bytes(385, noncelen // 8)
+    cipher = AES.new(key, AES.MODE_OCB, nonce=N, mac_len=taglen // 8)
+    cipher.update(C)
+    return cipher.encrypt() + cipher.digest()
+
+
+class OcbRfc7253Test(unittest.TestCase):
+
+    # Tuple with
+    # - nonce
+    # - authenticated data
+    # - plaintext
+    # - ciphertext and 16 byte MAC tag
+    tv1_key = "000102030405060708090A0B0C0D0E0F"
+    tv1 = (
+            (
+                "BBAA99887766554433221100",
+                "",
+                "",
+                "785407BFFFC8AD9EDCC5520AC9111EE6"
+            ),
+            (
+                "BBAA99887766554433221101",
+                "0001020304050607",
+                "0001020304050607",
+                "6820B3657B6F615A5725BDA0D3B4EB3A257C9AF1F8F03009"
+            ),
+            (
+                "BBAA99887766554433221102",
+                "0001020304050607",
+                "",
+                "81017F8203F081277152FADE694A0A00"
+            ),
+            (
+                "BBAA99887766554433221103",
+                "",
+                "0001020304050607",
+                "45DD69F8F5AAE72414054CD1F35D82760B2CD00D2F99BFA9"
+            ),
+            (
+                "BBAA99887766554433221104",
+                "000102030405060708090A0B0C0D0E0F",
+                "000102030405060708090A0B0C0D0E0F",
+                "571D535B60B277188BE5147170A9A22C3AD7A4FF3835B8C5"
+                "701C1CCEC8FC3358"
+            ),
+            (
+                "BBAA99887766554433221105",
+                "000102030405060708090A0B0C0D0E0F",
+                "",
+                "8CF761B6902EF764462AD86498CA6B97"
+            ),
+            (
+                "BBAA99887766554433221106",
+                "",
+                "000102030405060708090A0B0C0D0E0F",
+                "5CE88EC2E0692706A915C00AEB8B2396F40E1C743F52436B"
+                "DF06D8FA1ECA343D"
+            ),
+            (
+                "BBAA99887766554433221107",
+                "000102030405060708090A0B0C0D0E0F1011121314151617",
+                "000102030405060708090A0B0C0D0E0F1011121314151617",
+                "1CA2207308C87C010756104D8840CE1952F09673A448A122"
+                "C92C62241051F57356D7F3C90BB0E07F"
+            ),
+            (
+                "BBAA99887766554433221108",
+                "000102030405060708090A0B0C0D0E0F1011121314151617",
+                "",
+                "6DC225A071FC1B9F7C69F93B0F1E10DE"
+            ),
+            (
+                "BBAA99887766554433221109",
+                "",
+                "000102030405060708090A0B0C0D0E0F1011121314151617",
+                "221BD0DE7FA6FE993ECCD769460A0AF2D6CDED0C395B1C3C"
+                "E725F32494B9F914D85C0B1EB38357FF"
+            ),
+            (
+                "BBAA9988776655443322110A",
+                "000102030405060708090A0B0C0D0E0F1011121314151617"
+                "18191A1B1C1D1E1F",
+                "000102030405060708090A0B0C0D0E0F1011121314151617"
+                "18191A1B1C1D1E1F",
+                "BD6F6C496201C69296C11EFD138A467ABD3C707924B964DE"
+                "AFFC40319AF5A48540FBBA186C5553C68AD9F592A79A4240"
+            ),
+            (
+                "BBAA9988776655443322110B",
+                "000102030405060708090A0B0C0D0E0F1011121314151617"
+                "18191A1B1C1D1E1F",
+                "",
+                "FE80690BEE8A485D11F32965BC9D2A32"
+            ),
+            (
+                "BBAA9988776655443322110C",
+                "",
+                "000102030405060708090A0B0C0D0E0F1011121314151617"
+                "18191A1B1C1D1E1F",
+                "2942BFC773BDA23CABC6ACFD9BFD5835BD300F0973792EF4"
+                "6040C53F1432BCDFB5E1DDE3BC18A5F840B52E653444D5DF"
+            ),
+            (
+                "BBAA9988776655443322110D",
+                "000102030405060708090A0B0C0D0E0F1011121314151617"
+                "18191A1B1C1D1E1F2021222324252627",
+                "000102030405060708090A0B0C0D0E0F1011121314151617"
+                "18191A1B1C1D1E1F2021222324252627",
+                "D5CA91748410C1751FF8A2F618255B68A0A12E093FF45460"
+                "6E59F9C1D0DDC54B65E8628E568BAD7AED07BA06A4A69483"
+                "A7035490C5769E60"
+            ),
+            (
+                "BBAA9988776655443322110E",
+                "000102030405060708090A0B0C0D0E0F1011121314151617"
+                "18191A1B1C1D1E1F2021222324252627",
+                "",
+                "C5CD9D1850C141E358649994EE701B68"
+            ),
+            (
+                "BBAA9988776655443322110F",
+                "",
+                "000102030405060708090A0B0C0D0E0F1011121314151617"
+                "18191A1B1C1D1E1F2021222324252627",
+                "4412923493C57D5DE0D700F753CCE0D1D2D95060122E9F15"
+                "A5DDBFC5787E50B5CC55EE507BCB084E479AD363AC366B95"
+                "A98CA5F3000B1479"
+            )
+        )
+
+    # Tuple with
+    # - key
+    # - nonce
+    # - authenticated data
+    # - plaintext
+    # - ciphertext and 12 byte MAC tag
+    tv2 = (
+        "0F0E0D0C0B0A09080706050403020100",
+        "BBAA9988776655443322110D",
+        "000102030405060708090A0B0C0D0E0F1011121314151617"
+        "18191A1B1C1D1E1F2021222324252627",
+        "000102030405060708090A0B0C0D0E0F1011121314151617"
+        "18191A1B1C1D1E1F2021222324252627",
+        "1792A4E31E0755FB03E31B22116E6C2DDF9EFD6E33D536F1"
+        "A0124B0A55BAE884ED93481529C76B6AD0C515F4D1CDD4FD"
+        "AC4F02AA"
+        )
+
+    # Tuple with
+    # - key length
+    # - MAC tag length
+    # - Expected output
+    tv3 = (
+        (128, 128, "67E944D23256C5E0B6C61FA22FDF1EA2"),
+        (192, 128, "F673F2C3E7174AAE7BAE986CA9F29E17"),
+        (256, 128, "D90EB8E9C977C88B79DD793D7FFA161C"),
+        (128, 96,  "77A3D8E73589158D25D01209"),
+        (192, 96,  "05D56EAD2752C86BE6932C5E"),
+        (256, 96,  "5458359AC23B0CBA9E6330DD"),
+        (128, 64,  "192C9B7BD90BA06A"),
+        (192, 64,  "0066BC6E0EF34E24"),
+        (256, 64,  "7D4EA5D445501CBE"),
+    )
+
+    def test1(self):
+        key = unhexlify(b(self.tv1_key))
+        for tv in self.tv1:
+            nonce, aad, pt, ct = [unhexlify(b(x)) for x in tv]
+            ct, mac_tag = ct[:-16], ct[-16:]
+
+            cipher = AES.new(key, AES.MODE_OCB, nonce=nonce)
+            cipher.update(aad)
+            ct2 = cipher.encrypt(pt) + cipher.encrypt()
+            self.assertEqual(ct, ct2)
+            self.assertEqual(mac_tag, cipher.digest())
+
+            cipher = AES.new(key, AES.MODE_OCB, nonce=nonce)
+            cipher.update(aad)
+            pt2 = cipher.decrypt(ct) + cipher.decrypt()
+            self.assertEqual(pt, pt2)
+            cipher.verify(mac_tag)
+
+    def test2(self):
+
+        key, nonce, aad, pt, ct = [unhexlify(b(x)) for x in self.tv2]
+        ct, mac_tag = ct[:-12], ct[-12:]
+
+        cipher = AES.new(key, AES.MODE_OCB, nonce=nonce, mac_len=12)
+        cipher.update(aad)
+        ct2 = cipher.encrypt(pt) + cipher.encrypt()
+        self.assertEqual(ct, ct2)
+        self.assertEqual(mac_tag, cipher.digest())
+
+        cipher = AES.new(key, AES.MODE_OCB, nonce=nonce, mac_len=12)
+        cipher.update(aad)
+        pt2 = cipher.decrypt(ct) + cipher.decrypt()
+        self.assertEqual(pt, pt2)
+        cipher.verify(mac_tag)
+
+    def test3(self):
+        for keylen, taglen, result in self.tv3:
+            result2 = algo_rfc7253(keylen, taglen, 96)
+            self.assertEqual(unhexlify(b(result)), result2)
+
+
+class OcbDkgTest(unittest.TestCase):
+    """Test vectors from https://gitlab.com/dkg/ocb-test-vectors"""
+
+    def test_1_2(self):
+        tvs = []
+        for fi in (1, 2):
+            for nb in (104, 112, 120):
+                tv_file = load_test_vectors(("Cipher", "AES"),
+                                            "test-vector-%d-nonce%d.txt" % (fi, nb),
+                                            "DKG tests, %d, %d bits" % (fi, nb),
+                                            {})
+                if tv_file is None:
+                    break
+                key = tv_file[0].k
+                for tv in tv_file[1:]:
+                    tv.k = key
+                    tvs.append(tv)
+
+        for tv in tvs:
+            k, n, a, p, c = tv.k, tv.n, tv.a, tv.p, tv.c
+            mac_len = len(c) - len(p)
+            cipher = AES.new(k, AES.MODE_OCB, nonce=n, mac_len=mac_len)
+            cipher.update(a)
+            c_out, tag_out = cipher.encrypt_and_digest(p)
+            self.assertEqual(c, c_out + tag_out)
+
+    def test_3(self):
+
+        def check(keylen, taglen, noncelen, exp):
+            result = algo_rfc7253(keylen, taglen, noncelen)
+            self.assertEqual(result, unhexlify(exp))
+
+        # test-vector-3-nonce104.txt
+        check(128, 128, 104, "C47F5F0341E15326D4D1C46F47F05062")
+        check(192, 128, 104, "95B9167A38EB80495DFC561A8486E109")
+        check(256, 128, 104, "AFE1CDDB97028FD92F8FB3C8CFBA7D83")
+        check(128, 96, 104, "F471B4983BA80946DF217A54")
+        check(192, 96, 104, "5AE828BC51C24D85FA5CC7B2")
+        check(256, 96, 104, "8C8335982E2B734616CAD14C")
+        check(128, 64, 104, "B553F74B85FD1E5B")
+        check(192, 64, 104, "3B49D20E513531F9")
+        check(256, 64, 104, "ED6DA5B1216BF8BB")
+
+        # test-vector-3-nonce112.txt
+        check(128, 128, 112, "CA8AFCA031BAC3F480A583BD6C50A547")
+        check(192, 128, 112, "D170C1DF356308079DA9A3F619147148")
+        check(256, 128, 112, "57F94381F2F9231EFB04AECD323757C3")
+        check(128, 96, 112, "3A618B2531ED39F260C750DC")
+        check(192, 96, 112, "9071EB89FEDBADDA88FD286E")
+        check(256, 96, 112, "FDF0EFB97F21A39AC4BAB5AC")
+        check(128, 64, 112, "FAB2FF3A8DD82A13")
+        check(192, 64, 112, "AC01D912BD0737D3")
+        check(256, 64, 112, "9D1FD0B500EA4ECF")
+
+        # test-vector-3-nonce120.txt
+        check(128, 128, 120, "9E043A7140A25FB91F43BCC9DD7E0F46")
+        check(192, 128, 120, "680000E53908323A7F396B955B8EC641")
+        check(256, 128, 120, "8304B97FAACDA56E676602E1878A7E6F")
+        check(128, 96, 120, "81F978AC9867E825D339847D")
+        check(192, 96, 120, "EFCF2D60B24926ADA48CF5B1")
+        check(256, 96, 120, "84961DC56E917B165E58C174")
+        check(128, 64, 120, "227AEE6C9D905A61")
+        check(192, 64, 120, "541DE691B9E1A2F9")
+        check(256, 64, 120, "B0E761381C7129FC")
+
+    def test_2_bugfix(self):
+        nonce = unhexlify("EEDDCCBBAA9988776655443322110D")
+        key = unhexlify("0F0E0D0C0B0A09080706050403020100")
+        A = unhexlify("000102030405060708090A0B0C0D0E0F1011121314151617"
+                      "18191A1B1C1D1E1F2021222324252627")
+        P = unhexlify("000102030405060708090A0B0C0D0E0F1011121314151617"
+                      "18191A1B1C1D1E1F2021222324252627")
+        C = unhexlify("07E903BFC49552411ABC865F5ECE60F6FAD1F5A9F14D3070"
+                      "FA2F1308A563207FFE14C1EEA44B22059C7484319D8A2C53"
+                      "C236A7B3")
+        mac_len = len(C) - len(P)
+
+        # Prior to version 3.17, a nonce of maximum length (15 bytes)
+        # was actually used as a 14 byte nonce. The last byte was erroneously
+        # ignored.
+        buggy_result = unhexlify("BA015C4E5AE54D76C890AE81BD40DC57"
+                                 "03EDC30E8AC2A58BC5D8FA4D61C5BAE6"
+                                 "C39BEAC435B2FD56A2A5085C1B135D77"
+                                 "0C8264B7")
+        cipher = AES.new(key, AES.MODE_OCB, nonce=nonce[:-1], mac_len=mac_len)
+        cipher.update(A)
+        C_out2, tag_out2 = cipher.encrypt_and_digest(P)
+        self.assertEqual(buggy_result, C_out2 + tag_out2)
+
+
+def get_tests(config={}):
+    tests = []
+    tests += list_test_cases(OcbTests)
+    tests += list_test_cases(OcbFSMTests)
+    tests += list_test_cases(OcbRfc7253Test)
+    tests += list_test_cases(OcbDkgTest)
+    return tests
+
+
+if __name__ == '__main__':
+    def suite():
+        return unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_OFB.py

@@ -0,0 +1,238 @@
+# ===================================================================
+#
+# Copyright (c) 2015, Legrandin <helderijs@gmail.com>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+# ===================================================================
+
+import unittest
+from binascii import unhexlify
+
+from Crypto.SelfTest.st_common import list_test_cases
+from Crypto.Util.py3compat import tobytes
+from Crypto.Cipher import AES, DES3, DES
+from Crypto.Hash import SHAKE128
+from Crypto.SelfTest.loader import load_test_vectors_wycheproof
+
+def get_tag_random(tag, length):
+    return SHAKE128.new(data=tobytes(tag)).read(length)
+
+from Crypto.SelfTest.Cipher.test_CBC import BlockChainingTests
+
+class OfbTests(BlockChainingTests):
+
+    aes_mode = AES.MODE_OFB
+    des3_mode = DES3.MODE_OFB
+
+    # Redefine test_unaligned_data_128/64
+
+    def test_unaligned_data_128(self):
+        plaintexts = [ b"7777777" ] * 100
+
+        cipher = AES.new(self.key_128, AES.MODE_CFB, self.iv_128, segment_size=8)
+        ciphertexts = [ cipher.encrypt(x) for x in plaintexts ]
+        cipher = AES.new(self.key_128, AES.MODE_CFB, self.iv_128, segment_size=8)
+        self.assertEqual(b"".join(ciphertexts), cipher.encrypt(b"".join(plaintexts)))
+
+        cipher = AES.new(self.key_128, AES.MODE_CFB, self.iv_128, segment_size=128)
+        ciphertexts = [ cipher.encrypt(x) for x in plaintexts ]
+        cipher = AES.new(self.key_128, AES.MODE_CFB, self.iv_128, segment_size=128)
+        self.assertEqual(b"".join(ciphertexts), cipher.encrypt(b"".join(plaintexts)))
+
+    def test_unaligned_data_64(self):
+        plaintexts = [ b"7777777" ] * 100
+        cipher = DES3.new(self.key_192, DES3.MODE_CFB, self.iv_64, segment_size=8)
+        ciphertexts = [ cipher.encrypt(x) for x in plaintexts ]
+        cipher = DES3.new(self.key_192, DES3.MODE_CFB, self.iv_64, segment_size=8)
+        self.assertEqual(b"".join(ciphertexts), cipher.encrypt(b"".join(plaintexts)))
+
+        cipher = DES3.new(self.key_192, DES3.MODE_CFB, self.iv_64, segment_size=64)
+        ciphertexts = [ cipher.encrypt(x) for x in plaintexts ]
+        cipher = DES3.new(self.key_192, DES3.MODE_CFB, self.iv_64, segment_size=64)
+        self.assertEqual(b"".join(ciphertexts), cipher.encrypt(b"".join(plaintexts)))
+
+
+from Crypto.SelfTest.Cipher.test_CBC import NistBlockChainingVectors
+
+class NistOfbVectors(NistBlockChainingVectors):
+    aes_mode = AES.MODE_OFB
+    des_mode = DES.MODE_OFB
+    des3_mode = DES3.MODE_OFB
+
+
+# Create one test method per file
+nist_aes_kat_mmt_files = (
+    # KAT
+    "OFBGFSbox128.rsp",
+    "OFBGFSbox192.rsp",
+    "OFBGFSbox256.rsp",
+    "OFBKeySbox128.rsp",
+    "OFBKeySbox192.rsp",
+    "OFBKeySbox256.rsp",
+    "OFBVarKey128.rsp",
+    "OFBVarKey192.rsp",
+    "OFBVarKey256.rsp",
+    "OFBVarTxt128.rsp",
+    "OFBVarTxt192.rsp",
+    "OFBVarTxt256.rsp",
+    # MMT
+    "OFBMMT128.rsp",
+    "OFBMMT192.rsp",
+    "OFBMMT256.rsp",
+    )
+nist_aes_mct_files = (
+    "OFBMCT128.rsp",
+    "OFBMCT192.rsp",
+    "OFBMCT256.rsp",
+    )
+
+for file_name in nist_aes_kat_mmt_files:
+    def new_func(self, file_name=file_name):
+        self._do_kat_aes_test(file_name)
+    setattr(NistOfbVectors, "test_AES_" + file_name, new_func)
+
+for file_name in nist_aes_mct_files:
+    def new_func(self, file_name=file_name):
+        self._do_mct_aes_test(file_name)
+    setattr(NistOfbVectors, "test_AES_" + file_name, new_func)
+del file_name, new_func
+
+nist_tdes_files = (
+    "TOFBMMT2.rsp",    # 2TDES
+    "TOFBMMT3.rsp",    # 3TDES
+    "TOFBinvperm.rsp", # Single DES
+    "TOFBpermop.rsp",
+    "TOFBsubtab.rsp",
+    "TOFBvarkey.rsp",
+    "TOFBvartext.rsp",
+    )
+
+for file_name in nist_tdes_files:
+    def new_func(self, file_name=file_name):
+        self._do_tdes_test(file_name)
+    setattr(NistOfbVectors, "test_TDES_" + file_name, new_func)
+
+# END OF NIST OFB TEST VECTORS
+
+
+class SP800TestVectors(unittest.TestCase):
+    """Class exercising the OFB test vectors found in Section F.4
+    of NIST SP 800-3A"""
+
+    def test_aes_128(self):
+        plaintext =     '6bc1bee22e409f96e93d7e117393172a' +\
+                        'ae2d8a571e03ac9c9eb76fac45af8e51' +\
+                        '30c81c46a35ce411e5fbc1191a0a52ef' +\
+                        'f69f2445df4f9b17ad2b417be66c3710'
+        ciphertext =    '3b3fd92eb72dad20333449f8e83cfb4a' +\
+                        '7789508d16918f03f53c52dac54ed825' +\
+                        '9740051e9c5fecf64344f7a82260edcc' +\
+                        '304c6528f659c77866a510d9c1d6ae5e'
+        key =           '2b7e151628aed2a6abf7158809cf4f3c'
+        iv =            '000102030405060708090a0b0c0d0e0f'
+
+        key = unhexlify(key)
+        iv = unhexlify(iv)
+        plaintext = unhexlify(plaintext)
+        ciphertext = unhexlify(ciphertext)
+
+        cipher = AES.new(key, AES.MODE_OFB, iv)
+        self.assertEqual(cipher.encrypt(plaintext), ciphertext)
+        cipher = AES.new(key, AES.MODE_OFB, iv)
+        self.assertEqual(cipher.decrypt(ciphertext), plaintext)
+
+        cipher = AES.new(key, AES.MODE_OFB, iv)
+        self.assertEqual(cipher.encrypt(plaintext[:-8]), ciphertext[:-8])
+        cipher = AES.new(key, AES.MODE_OFB, iv)
+        self.assertEqual(cipher.decrypt(ciphertext[:-8]), plaintext[:-8])
+
+    def test_aes_192(self):
+        plaintext =     '6bc1bee22e409f96e93d7e117393172a' +\
+                        'ae2d8a571e03ac9c9eb76fac45af8e51' +\
+                        '30c81c46a35ce411e5fbc1191a0a52ef' +\
+                        'f69f2445df4f9b17ad2b417be66c3710'
+        ciphertext =    'cdc80d6fddf18cab34c25909c99a4174' +\
+                        'fcc28b8d4c63837c09e81700c1100401' +\
+                        '8d9a9aeac0f6596f559c6d4daf59a5f2' +\
+                        '6d9f200857ca6c3e9cac524bd9acc92a'
+        key =           '8e73b0f7da0e6452c810f32b809079e562f8ead2522c6b7b'
+        iv =            '000102030405060708090a0b0c0d0e0f'
+
+        key = unhexlify(key)
+        iv = unhexlify(iv)
+        plaintext = unhexlify(plaintext)
+        ciphertext = unhexlify(ciphertext)
+
+        cipher = AES.new(key, AES.MODE_OFB, iv)
+        self.assertEqual(cipher.encrypt(plaintext), ciphertext)
+        cipher = AES.new(key, AES.MODE_OFB, iv)
+        self.assertEqual(cipher.decrypt(ciphertext), plaintext)
+
+        cipher = AES.new(key, AES.MODE_OFB, iv)
+        self.assertEqual(cipher.encrypt(plaintext[:-8]), ciphertext[:-8])
+        cipher = AES.new(key, AES.MODE_OFB, iv)
+        self.assertEqual(cipher.decrypt(ciphertext[:-8]), plaintext[:-8])
+
+    def test_aes_256(self):
+        plaintext =     '6bc1bee22e409f96e93d7e117393172a' +\
+                        'ae2d8a571e03ac9c9eb76fac45af8e51' +\
+                        '30c81c46a35ce411e5fbc1191a0a52ef' +\
+                        'f69f2445df4f9b17ad2b417be66c3710'
+        ciphertext =    'dc7e84bfda79164b7ecd8486985d3860' +\
+                        '4febdc6740d20b3ac88f6ad82a4fb08d' +\
+                        '71ab47a086e86eedf39d1c5bba97c408' +\
+                        '0126141d67f37be8538f5a8be740e484'
+        key =           '603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4'
+        iv =            '000102030405060708090a0b0c0d0e0f'
+
+        key = unhexlify(key)
+        iv = unhexlify(iv)
+        plaintext = unhexlify(plaintext)
+        ciphertext = unhexlify(ciphertext)
+
+        cipher = AES.new(key, AES.MODE_OFB, iv)
+        self.assertEqual(cipher.encrypt(plaintext), ciphertext)
+        cipher = AES.new(key, AES.MODE_OFB, iv)
+        self.assertEqual(cipher.decrypt(ciphertext), plaintext)
+
+        cipher = AES.new(key, AES.MODE_OFB, iv)
+        self.assertEqual(cipher.encrypt(plaintext[:-8]), ciphertext[:-8])
+        cipher = AES.new(key, AES.MODE_OFB, iv)
+        self.assertEqual(cipher.decrypt(ciphertext[:-8]), plaintext[:-8])
+
+
+def get_tests(config={}):
+    tests = []
+    tests += list_test_cases(OfbTests)
+    if config.get('slow_tests'):
+        tests += list_test_cases(NistOfbVectors)
+    tests += list_test_cases(SP800TestVectors)
+    return tests
+
+
+if __name__ == '__main__':
+    suite = lambda: unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_OpenPGP.py

@@ -0,0 +1,218 @@
+# ===================================================================
+#
+# Copyright (c) 2015, Legrandin <helderijs@gmail.com>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+# ===================================================================
+
+import unittest
+from binascii import unhexlify
+
+from Crypto.SelfTest.st_common import list_test_cases
+from Crypto.Util.py3compat import tobytes
+from Crypto.Cipher import AES, DES3, DES
+from Crypto.Hash import SHAKE128
+
+def get_tag_random(tag, length):
+    return SHAKE128.new(data=tobytes(tag)).read(length)
+
+
+from Crypto.SelfTest.Cipher.test_CBC import BlockChainingTests
+
+class OpenPGPTests(BlockChainingTests):
+
+    aes_mode = AES.MODE_OPENPGP
+    des3_mode = DES3.MODE_OPENPGP
+
+    # Redefine test_unaligned_data_128/64
+
+    key_128 = get_tag_random("key_128", 16)
+    key_192 = get_tag_random("key_192", 24)
+    iv_128 = get_tag_random("iv_128", 16)
+    iv_64 = get_tag_random("iv_64", 8)
+    data_128 = get_tag_random("data_128", 16)
+
+    def test_loopback_128(self):
+        cipher = AES.new(self.key_128, AES.MODE_OPENPGP, self.iv_128)
+        pt = get_tag_random("plaintext", 16 * 100)
+        ct = cipher.encrypt(pt)
+
+        eiv, ct = ct[:18], ct[18:]
+
+        cipher = AES.new(self.key_128, AES.MODE_OPENPGP, eiv)
+        pt2 = cipher.decrypt(ct)
+        self.assertEqual(pt, pt2)
+
+    def test_loopback_64(self):
+        cipher = DES3.new(self.key_192, DES3.MODE_OPENPGP, self.iv_64)
+        pt = get_tag_random("plaintext", 8 * 100)
+        ct = cipher.encrypt(pt)
+
+        eiv, ct = ct[:10], ct[10:]
+
+        cipher = DES3.new(self.key_192, DES3.MODE_OPENPGP, eiv)
+        pt2 = cipher.decrypt(ct)
+        self.assertEqual(pt, pt2)
+
+    def test_IV_iv_attributes(self):
+        cipher = AES.new(self.key_128, AES.MODE_OPENPGP, self.iv_128)
+        eiv = cipher.encrypt(b"")
+        self.assertEqual(cipher.iv, self.iv_128)
+
+        cipher = AES.new(self.key_128, AES.MODE_OPENPGP, eiv)
+        self.assertEqual(cipher.iv, self.iv_128)
+
+    def test_null_encryption_decryption(self):
+        cipher = AES.new(self.key_128, AES.MODE_OPENPGP, self.iv_128)
+        eiv = cipher.encrypt(b"")
+
+        cipher = AES.new(self.key_128, AES.MODE_OPENPGP, eiv)
+        self.assertEqual(cipher.decrypt(b""), b"")
+
+    def test_either_encrypt_or_decrypt(self):
+        cipher = AES.new(self.key_128, AES.MODE_OPENPGP, self.iv_128)
+        eiv = cipher.encrypt(b"")
+        self.assertRaises(TypeError, cipher.decrypt, b"")
+
+        cipher = AES.new(self.key_128, AES.MODE_OPENPGP, eiv)
+        cipher.decrypt(b"")
+        self.assertRaises(TypeError, cipher.encrypt, b"")
+
+    def test_unaligned_data_128(self):
+        plaintexts = [ b"7777777" ] * 100
+
+        cipher = AES.new(self.key_128, AES.MODE_OPENPGP, self.iv_128)
+        ciphertexts = [ cipher.encrypt(x) for x in plaintexts ]
+        cipher = AES.new(self.key_128, AES.MODE_OPENPGP, self.iv_128)
+        self.assertEqual(b"".join(ciphertexts), cipher.encrypt(b"".join(plaintexts)))
+
+    def test_unaligned_data_64(self):
+        plaintexts = [ b"7777777" ] * 100
+
+        cipher = DES3.new(self.key_192, DES3.MODE_OPENPGP, self.iv_64)
+        ciphertexts = [ cipher.encrypt(x) for x in plaintexts ]
+        cipher = DES3.new(self.key_192, DES3.MODE_OPENPGP, self.iv_64)
+        self.assertEqual(b"".join(ciphertexts), cipher.encrypt(b"".join(plaintexts)))
+
+    def test_output_param(self):
+        pass
+
+    def test_output_param_same_buffer(self):
+        pass
+
+    def test_output_param_memoryview(self):
+        pass
+
+    def test_output_param_neg(self):
+        pass
+
+
+class TestVectors(unittest.TestCase):
+
+    def test_aes(self):
+        # The following test vectors have been generated with gpg v1.4.0.
+        # The command line used was:
+        #
+        #    gpg -c -z 0 --cipher-algo AES --passphrase secret_passphrase \
+        #     --disable-mdc --s2k-mode 0 --output ct pt
+        #
+        # As result, the content of the file 'pt' is encrypted with a key derived
+        # from 'secret_passphrase' and written to file 'ct'.
+        # Test vectors must be extracted from 'ct', which is a collection of
+        # TLVs (see RFC4880 for all details):
+        # - the encrypted data (with the encrypted IV as prefix) is the payload
+        #   of the TLV with tag 9 (Symmetrical Encrypted Data Packet).
+        #   This is the ciphertext in the test vector.
+        # - inside the encrypted part, there is a further layer of TLVs. One must
+        #   look for tag 11 (Literal Data  Packet); in its payload, after a short
+        #   but time dependent header, there is the content of file 'pt'.
+        #   In the test vector, the plaintext is the complete set of TLVs that gets
+        #   encrypted. It is not just the content of 'pt'.
+        # - the key is the leftmost 16 bytes of the SHA1 digest of the password.
+        #   The test vector contains such shortened digest.
+        #
+        # Note that encryption uses a clear IV, and decryption an encrypted IV
+
+        plaintext = 'ac18620270744fb4f647426c61636b4361745768697465436174'
+        ciphertext = 'dc6b9e1f095de609765c59983db5956ae4f63aea7405389d2ebb'
+        key = '5baa61e4c9b93f3f0682250b6cf8331b'
+        iv = '3d7d3e62282add7eb203eeba5c800733'
+        encrypted_iv='fd934601ef49cb58b6d9aebca6056bdb96ef'
+
+        plaintext = unhexlify(plaintext)
+        ciphertext = unhexlify(ciphertext)
+        key = unhexlify(key)
+        iv = unhexlify(iv)
+        encrypted_iv = unhexlify(encrypted_iv)
+
+        cipher = AES.new(key, AES.MODE_OPENPGP, iv)
+        ct = cipher.encrypt(plaintext)
+        self.assertEqual(ct[:18], encrypted_iv)
+        self.assertEqual(ct[18:], ciphertext)
+
+        cipher = AES.new(key, AES.MODE_OPENPGP, encrypted_iv)
+        pt = cipher.decrypt(ciphertext)
+        self.assertEqual(pt, plaintext)
+
+    def test_des3(self):
+        # The following test vectors have been generated with gpg v1.4.0.
+        # The command line used was:
+        #    gpg -c -z 0 --cipher-algo 3DES --passphrase secret_passphrase \
+        #     --disable-mdc --s2k-mode 0 --output ct pt
+        # For an explanation, see test_AES.py .
+
+        plaintext = 'ac1762037074324fb53ba3596f73656d69746556616c6c6579'
+        ciphertext = '9979238528357b90e2e0be549cb0b2d5999b9a4a447e5c5c7d'
+        key = '7ade65b460f5ea9be35f9e14aa883a2048e3824aa616c0b2'
+        iv='cd47e2afb8b7e4b0'
+        encrypted_iv='6a7eef0b58050e8b904a'
+
+        plaintext = unhexlify(plaintext)
+        ciphertext = unhexlify(ciphertext)
+        key = unhexlify(key)
+        iv = unhexlify(iv)
+        encrypted_iv = unhexlify(encrypted_iv)
+
+        cipher = DES3.new(key, DES3.MODE_OPENPGP, iv)
+        ct = cipher.encrypt(plaintext)
+        self.assertEqual(ct[:10], encrypted_iv)
+        self.assertEqual(ct[10:], ciphertext)
+
+        cipher = DES3.new(key, DES3.MODE_OPENPGP, encrypted_iv)
+        pt = cipher.decrypt(ciphertext)
+        self.assertEqual(pt, plaintext)
+
+
+def get_tests(config={}):
+    tests = []
+    tests += list_test_cases(OpenPGPTests)
+    tests += list_test_cases(TestVectors)
+    return tests
+
+
+if __name__ == '__main__':
+    suite = lambda: unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_SIV.py

@@ -0,0 +1,552 @@
+# ===================================================================
+#
+# Copyright (c) 2015, Legrandin <helderijs@gmail.com>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+# ===================================================================
+
+import json
+import unittest
+from binascii import unhexlify
+
+from Crypto.SelfTest.st_common import list_test_cases
+from Crypto.SelfTest.loader import load_test_vectors_wycheproof
+
+from Crypto.Util.py3compat import tobytes, bchr
+from Crypto.Cipher import AES
+from Crypto.Hash import SHAKE128
+
+from Crypto.Util.strxor import strxor
+
+
+def get_tag_random(tag, length):
+    return SHAKE128.new(data=tobytes(tag)).read(length)
+
+
+class SivTests(unittest.TestCase):
+
+    key_256 = get_tag_random("key_256", 32)
+    key_384 = get_tag_random("key_384", 48)
+    key_512 = get_tag_random("key_512", 64)
+    nonce_96 = get_tag_random("nonce_128", 12)
+    data = get_tag_random("data", 128)
+
+    def test_loopback_128(self):
+        for key in self.key_256, self.key_384, self.key_512:
+            cipher = AES.new(key, AES.MODE_SIV, nonce=self.nonce_96)
+            pt = get_tag_random("plaintext", 16 * 100)
+            ct, mac = cipher.encrypt_and_digest(pt)
+
+            cipher = AES.new(key, AES.MODE_SIV, nonce=self.nonce_96)
+            pt2 = cipher.decrypt_and_verify(ct, mac)
+            self.assertEqual(pt, pt2)
+
+    def test_nonce(self):
+        # Deterministic encryption
+        AES.new(self.key_256, AES.MODE_SIV)
+
+        cipher = AES.new(self.key_256, AES.MODE_SIV, self.nonce_96)
+        ct1, tag1 = cipher.encrypt_and_digest(self.data)
+
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        ct2, tag2 = cipher.encrypt_and_digest(self.data)
+        self.assertEqual(ct1 + tag1, ct2 + tag2)
+
+    def test_nonce_must_be_bytes(self):
+        self.assertRaises(TypeError, AES.new, self.key_256, AES.MODE_SIV,
+                          nonce=u'test12345678')
+
+    def test_nonce_length(self):
+        # nonce can be of any length (but not empty)
+        self.assertRaises(ValueError, AES.new, self.key_256, AES.MODE_SIV,
+                          nonce=b"")
+
+        for x in range(1, 128):
+            cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=bchr(1) * x)
+            cipher.encrypt_and_digest(b'\x01')
+
+    def test_block_size_128(self):
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        self.assertEqual(cipher.block_size, AES.block_size)
+
+    def test_nonce_attribute(self):
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        self.assertEqual(cipher.nonce, self.nonce_96)
+
+        # By default, no nonce is randomly generated
+        self.assertFalse(hasattr(AES.new(self.key_256, AES.MODE_SIV), "nonce"))
+
+    def test_unknown_parameters(self):
+        self.assertRaises(TypeError, AES.new, self.key_256, AES.MODE_SIV,
+                          self.nonce_96, 7)
+        self.assertRaises(TypeError, AES.new, self.key_256, AES.MODE_SIV,
+                          nonce=self.nonce_96, unknown=7)
+
+        # But some are only known by the base cipher
+        # (e.g. use_aesni consumed by the AES module)
+        AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96,
+                use_aesni=False)
+
+    def test_encrypt_excludes_decrypt(self):
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        cipher.encrypt_and_digest(self.data)
+        self.assertRaises(TypeError, cipher.decrypt, self.data)
+
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        cipher.encrypt_and_digest(self.data)
+        self.assertRaises(TypeError, cipher.decrypt_and_verify,
+                          self.data, self.data)
+
+    def test_data_must_be_bytes(self):
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.encrypt, u'test1234567890-*')
+
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.decrypt_and_verify,
+                          u'test1234567890-*', b"xxxx")
+
+    def test_mac_len(self):
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        _, mac = cipher.encrypt_and_digest(self.data)
+        self.assertEqual(len(mac), 16)
+
+    def test_invalid_mac(self):
+        from Crypto.Util.strxor import strxor_c
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        ct, mac = cipher.encrypt_and_digest(self.data)
+
+        invalid_mac = strxor_c(mac, 0x01)
+
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        self.assertRaises(ValueError, cipher.decrypt_and_verify, ct,
+                          invalid_mac)
+
+    def test_hex_mac(self):
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        mac_hex = cipher.hexdigest()
+        self.assertEqual(cipher.digest(), unhexlify(mac_hex))
+
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        cipher.hexverify(mac_hex)
+
+    def test_bytearray(self):
+
+        # Encrypt
+        key = bytearray(self.key_256)
+        nonce = bytearray(self.nonce_96)
+        data = bytearray(self.data)
+        header = bytearray(self.data)
+
+        cipher1 = AES.new(self.key_256,
+                          AES.MODE_SIV,
+                          nonce=self.nonce_96)
+        cipher1.update(self.data)
+        ct, tag = cipher1.encrypt_and_digest(self.data)
+
+        cipher2 = AES.new(key,
+                          AES.MODE_SIV,
+                          nonce=nonce)
+        key[:3] = b'\xFF\xFF\xFF'
+        nonce[:3] = b'\xFF\xFF\xFF'
+        cipher2.update(header)
+        header[:3] = b'\xFF\xFF\xFF'
+        ct_test, tag_test = cipher2.encrypt_and_digest(data)
+
+        self.assertEqual(ct, ct_test)
+        self.assertEqual(tag, tag_test)
+        self.assertEqual(cipher1.nonce, cipher2.nonce)
+
+        # Decrypt
+        key = bytearray(self.key_256)
+        nonce = bytearray(self.nonce_96)
+        header = bytearray(self.data)
+        ct_ba = bytearray(ct)
+        tag_ba = bytearray(tag)
+
+        cipher3 = AES.new(key,
+                          AES.MODE_SIV,
+                          nonce=nonce)
+        key[:3] = b'\xFF\xFF\xFF'
+        nonce[:3] = b'\xFF\xFF\xFF'
+        cipher3.update(header)
+        header[:3] = b'\xFF\xFF\xFF'
+        pt_test = cipher3.decrypt_and_verify(ct_ba, tag_ba)
+
+        self.assertEqual(self.data, pt_test)
+
+    def test_memoryview(self):
+
+        # Encrypt
+        key = memoryview(bytearray(self.key_256))
+        nonce = memoryview(bytearray(self.nonce_96))
+        data = memoryview(bytearray(self.data))
+        header = memoryview(bytearray(self.data))
+
+        cipher1 = AES.new(self.key_256,
+                          AES.MODE_SIV,
+                          nonce=self.nonce_96)
+        cipher1.update(self.data)
+        ct, tag = cipher1.encrypt_and_digest(self.data)
+
+        cipher2 = AES.new(key,
+                          AES.MODE_SIV,
+                          nonce=nonce)
+        key[:3] = b'\xFF\xFF\xFF'
+        nonce[:3] = b'\xFF\xFF\xFF'
+        cipher2.update(header)
+        header[:3] = b'\xFF\xFF\xFF'
+        ct_test, tag_test= cipher2.encrypt_and_digest(data)
+
+        self.assertEqual(ct, ct_test)
+        self.assertEqual(tag, tag_test)
+        self.assertEqual(cipher1.nonce, cipher2.nonce)
+
+        # Decrypt
+        key = memoryview(bytearray(self.key_256))
+        nonce = memoryview(bytearray(self.nonce_96))
+        header = memoryview(bytearray(self.data))
+        ct_ba = memoryview(bytearray(ct))
+        tag_ba = memoryview(bytearray(tag))
+
+        cipher3 = AES.new(key,
+                          AES.MODE_SIV,
+                          nonce=nonce)
+        key[:3] = b'\xFF\xFF\xFF'
+        nonce[:3] = b'\xFF\xFF\xFF'
+        cipher3.update(header)
+        header[:3] = b'\xFF\xFF\xFF'
+        pt_test = cipher3.decrypt_and_verify(ct_ba, tag_ba)
+
+        self.assertEqual(self.data, pt_test)
+
+    def test_output_param(self):
+
+        pt = b'5' * 128
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        ct, tag = cipher.encrypt_and_digest(pt)
+
+        output = bytearray(128)
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        res, tag_out = cipher.encrypt_and_digest(pt, output=output)
+        self.assertEqual(ct, output)
+        self.assertEqual(res, None)
+        self.assertEqual(tag, tag_out)
+
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        res = cipher.decrypt_and_verify(ct, tag, output=output)
+        self.assertEqual(pt, output)
+        self.assertEqual(res, None)
+
+    def test_output_param_memoryview(self):
+
+        pt = b'5' * 128
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        ct, tag = cipher.encrypt_and_digest(pt)
+
+        output = memoryview(bytearray(128))
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        cipher.encrypt_and_digest(pt, output=output)
+        self.assertEqual(ct, output)
+
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        cipher.decrypt_and_verify(ct, tag, output=output)
+        self.assertEqual(pt, output)
+
+    def test_output_param_neg(self):
+        LEN_PT = 128
+
+        pt = b'5' * LEN_PT
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        ct, tag = cipher.encrypt_and_digest(pt)
+
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.encrypt_and_digest, pt, output=b'0' * LEN_PT)
+
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.decrypt_and_verify, ct, tag, output=b'0' * LEN_PT)
+
+        shorter_output = bytearray(LEN_PT - 1)
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        self.assertRaises(ValueError, cipher.encrypt_and_digest, pt, output=shorter_output)
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        self.assertRaises(ValueError, cipher.decrypt_and_verify, ct, tag, output=shorter_output)
+
+
+class SivFSMTests(unittest.TestCase):
+
+    key_256 = get_tag_random("key_256", 32)
+    nonce_96 = get_tag_random("nonce_96", 12)
+    data = get_tag_random("data", 128)
+
+    def test_invalid_init_encrypt(self):
+        # Path INIT->ENCRYPT fails
+        cipher = AES.new(self.key_256, AES.MODE_SIV,
+                         nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.encrypt, b"xxx")
+
+    def test_invalid_init_decrypt(self):
+        # Path INIT->DECRYPT fails
+        cipher = AES.new(self.key_256, AES.MODE_SIV,
+                         nonce=self.nonce_96)
+        self.assertRaises(TypeError, cipher.decrypt, b"xxx")
+
+    def test_valid_init_update_digest_verify(self):
+        # No plaintext, fixed authenticated data
+        # Verify path INIT->UPDATE->DIGEST
+        cipher = AES.new(self.key_256, AES.MODE_SIV,
+                         nonce=self.nonce_96)
+        cipher.update(self.data)
+        mac = cipher.digest()
+
+        # Verify path INIT->UPDATE->VERIFY
+        cipher = AES.new(self.key_256, AES.MODE_SIV,
+                         nonce=self.nonce_96)
+        cipher.update(self.data)
+        cipher.verify(mac)
+
+    def test_valid_init_digest(self):
+        # Verify path INIT->DIGEST
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        cipher.digest()
+
+    def test_valid_init_verify(self):
+        # Verify path INIT->VERIFY
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        mac = cipher.digest()
+
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        cipher.verify(mac)
+
+    def test_valid_multiple_digest_or_verify(self):
+        # Multiple calls to digest
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        cipher.update(self.data)
+        first_mac = cipher.digest()
+        for x in range(4):
+            self.assertEqual(first_mac, cipher.digest())
+
+        # Multiple calls to verify
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        cipher.update(self.data)
+        for x in range(5):
+            cipher.verify(first_mac)
+
+    def test_valid_encrypt_and_digest_decrypt_and_verify(self):
+        # encrypt_and_digest
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        cipher.update(self.data)
+        ct, mac = cipher.encrypt_and_digest(self.data)
+
+        # decrypt_and_verify
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        cipher.update(self.data)
+        pt = cipher.decrypt_and_verify(ct, mac)
+        self.assertEqual(self.data, pt)
+
+    def test_invalid_multiple_encrypt_and_digest(self):
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        ct, tag = cipher.encrypt_and_digest(self.data)
+        self.assertRaises(TypeError, cipher.encrypt_and_digest, b'')
+
+    def test_invalid_multiple_decrypt_and_verify(self):
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        ct, tag = cipher.encrypt_and_digest(self.data)
+
+        cipher = AES.new(self.key_256, AES.MODE_SIV, nonce=self.nonce_96)
+        cipher.decrypt_and_verify(ct, tag)
+        self.assertRaises(TypeError, cipher.decrypt_and_verify, ct, tag)
+
+
+def transform(tv):
+    new_tv = [[unhexlify(x) for x in tv[0].split("-")]]
+    new_tv += [ unhexlify(x) for x in tv[1:5]]
+    if tv[5]:
+        nonce = unhexlify(tv[5])
+    else:
+        nonce = None
+    new_tv += [ nonce ]
+    return new_tv
+
+
+class TestVectors(unittest.TestCase):
+    """Class exercising the SIV test vectors found in RFC5297"""
+
+    # This is a list of tuples with 5 items:
+    #
+    #  1. Header + '|' + plaintext
+    #  2. Header + '|' + ciphertext + '|' + MAC
+    #  3. AES-128 key
+    #  4. Description
+    #  5. Dictionary of parameters to be passed to AES.new().
+    #     It must include the nonce.
+    #
+    #  A "Header" is a dash ('-') separated sequece of components.
+    #
+    test_vectors_hex = [
+      (
+        '101112131415161718191a1b1c1d1e1f2021222324252627',
+        '112233445566778899aabbccddee',
+        '40c02b9690c4dc04daef7f6afe5c',
+        '85632d07c6e8f37f950acd320a2ecc93',
+        'fffefdfcfbfaf9f8f7f6f5f4f3f2f1f0f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff',
+        None
+      ),
+      (
+        '00112233445566778899aabbccddeeffdeaddadadeaddadaffeeddccbbaa9988' +
+        '7766554433221100-102030405060708090a0',
+        '7468697320697320736f6d6520706c61696e7465787420746f20656e63727970' +
+        '74207573696e67205349562d414553',
+        'cb900f2fddbe404326601965c889bf17dba77ceb094fa663b7a3f748ba8af829' +
+        'ea64ad544a272e9c485b62a3fd5c0d',
+        '7bdb6e3b432667eb06f4d14bff2fbd0f',
+        '7f7e7d7c7b7a79787776757473727170404142434445464748494a4b4c4d4e4f',
+        '09f911029d74e35bd84156c5635688c0'
+      ),
+    ]
+
+    test_vectors = [ transform(tv) for tv in test_vectors_hex ]
+
+    def runTest(self):
+        for assoc_data, pt, ct, mac, key, nonce in self.test_vectors:
+
+            # Encrypt
+            cipher = AES.new(key, AES.MODE_SIV, nonce=nonce)
+            for x in assoc_data:
+                cipher.update(x)
+            ct2, mac2 = cipher.encrypt_and_digest(pt)
+            self.assertEqual(ct, ct2)
+            self.assertEqual(mac, mac2)
+
+            # Decrypt
+            cipher = AES.new(key, AES.MODE_SIV, nonce=nonce)
+            for x in assoc_data:
+                cipher.update(x)
+            pt2 = cipher.decrypt_and_verify(ct, mac)
+            self.assertEqual(pt, pt2)
+
+
+class TestVectorsWycheproof(unittest.TestCase):
+
+    def __init__(self):
+        unittest.TestCase.__init__(self)
+        self._id = "None"
+
+    def setUp(self):
+        self.tv = load_test_vectors_wycheproof(("Cipher", "wycheproof"),
+                                               "aes_siv_cmac_test.json",
+                                               "Wycheproof AES SIV")
+
+    def shortDescription(self):
+        return self._id
+
+    def test_encrypt(self, tv):
+        self._id = "Wycheproof Encrypt AES-SIV Test #" + str(tv.id)
+
+        cipher = AES.new(tv.key, AES.MODE_SIV)
+        cipher.update(tv.aad)
+        ct, tag = cipher.encrypt_and_digest(tv.msg)
+        if tv.valid:
+            self.assertEqual(tag + ct, tv.ct)
+
+    def test_decrypt(self, tv):
+        self._id = "Wycheproof Decrypt AES_SIV Test #" + str(tv.id)
+
+        cipher = AES.new(tv.key, AES.MODE_SIV)
+        cipher.update(tv.aad)
+        try:
+            pt = cipher.decrypt_and_verify(tv.ct[16:], tv.ct[:16])
+        except ValueError:
+            assert not tv.valid
+        else:
+            assert tv.valid
+            self.assertEqual(pt, tv.msg)
+
+    def runTest(self):
+
+        for tv in self.tv:
+            self.test_encrypt(tv)
+            self.test_decrypt(tv)
+
+
+class TestVectorsWycheproof2(unittest.TestCase):
+
+    def __init__(self):
+        unittest.TestCase.__init__(self)
+        self._id = "None"
+
+    def setUp(self):
+        self.tv = load_test_vectors_wycheproof(("Cipher", "wycheproof"),
+                                               "aead_aes_siv_cmac_test.json",
+                                               "Wycheproof AEAD SIV")
+
+    def shortDescription(self):
+        return self._id
+
+    def test_encrypt(self, tv):
+        self._id = "Wycheproof Encrypt AEAD-AES-SIV Test #" + str(tv.id)
+
+        cipher = AES.new(tv.key, AES.MODE_SIV, nonce=tv.iv)
+        cipher.update(tv.aad)
+        ct, tag = cipher.encrypt_and_digest(tv.msg)
+        if tv.valid:
+            self.assertEqual(ct, tv.ct)
+            self.assertEqual(tag, tv.tag)
+
+    def test_decrypt(self, tv):
+        self._id = "Wycheproof Decrypt AEAD-AES-SIV Test #" + str(tv.id)
+
+        cipher = AES.new(tv.key, AES.MODE_SIV, nonce=tv.iv)
+        cipher.update(tv.aad)
+        try:
+            pt = cipher.decrypt_and_verify(tv.ct, tv.tag)
+        except ValueError:
+            assert not tv.valid
+        else:
+            assert tv.valid
+            self.assertEqual(pt, tv.msg)
+
+    def runTest(self):
+
+        for tv in self.tv:
+            self.test_encrypt(tv)
+            self.test_decrypt(tv)
+
+
+def get_tests(config={}):
+    wycheproof_warnings = config.get('wycheproof_warnings')
+
+    tests = []
+    tests += list_test_cases(SivTests)
+    tests += list_test_cases(SivFSMTests)
+    tests += [ TestVectors() ]
+    tests += [ TestVectorsWycheproof() ]
+    tests += [ TestVectorsWycheproof2() ]
+    return tests
+
+
+if __name__ == '__main__':
+    suite = lambda: unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_Salsa20.py

@@ -0,0 +1,367 @@
+# -*- coding: utf-8 -*-
+#
+#  SelfTest/Cipher/Salsa20.py: Self-test for the Salsa20 stream cipher
+#
+# Written in 2013 by Fabrizio Tarizzo <fabrizio@fabriziotarizzo.org>
+#
+# ===================================================================
+# The contents of this file are dedicated to the public domain.  To
+# the extent that dedication to the public domain is not available,
+# everyone is granted a worldwide, perpetual, royalty-free,
+# non-exclusive license to exercise all rights associated with the
+# contents of this file for any purpose whatsoever.
+# No rights are reserved.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+# ===================================================================
+
+"""Self-test suite for Crypto.Cipher.Salsa20"""
+
+import unittest
+
+from Crypto.Util.py3compat import bchr
+
+from Crypto.SelfTest.st_common import list_test_cases
+
+from Crypto.Cipher import Salsa20
+
+from .common import make_stream_tests
+
+# This is a list of (plaintext, ciphertext, key[, description[, params]])
+# tuples.
+test_data = [
+    # Test vectors are taken from
+    # http://www.ecrypt.eu.org/stream/svn/viewcvs.cgi/ecrypt/trunk/submissions/salsa20/full/verified.test-vectors
+    ( '00' * 512,
+      '4dfa5e481da23ea09a31022050859936da52fcee218005164f267cb65f5cfd7f'
+    + '2b4f97e0ff16924a52df269515110a07f9e460bc65ef95da58f740b7d1dbb0aa'
+    + 'd64cec189c7eb8c6bbf3d7376c80a481d43e628701f6a27afb9fe23919f24114'
+    + '8db44f70d7063efcc3dd55a0893a613c3c6fe1c127bd6f59910589293bb6ef9e'
+    + 'e24819066dee1a64f49b0bbad5988635272b169af861f85df881939f29ada6fd'
+    + '0241410e8d332ae4798d929434a2630de451ec4e0169694cbaa7ebb121ea6a2b'
+    + 'da9c1581f429e0a00f7d67e23b730676783b262e8eb43a25f55fb90b3e753aef'
+    + '8c6713ec66c51881111593ccb3e8cb8f8de124080501eeeb389c4bcb6977cf95'
+    + '7d5789631eb4554400e1e025935dfa7b3e9039d61bdc58a8697d36815bf1985c'
+    + 'efdf7ae112e5bb81e37ecf0616ce7147fc08a93a367e08631f23c03b00a8da2f'
+    + 'aa5024e5c8d30aca43fc2d5082067b21b234bc741d68fb292c6012c3764ccee3'
+    + '1e364a5403e00cfee338a21a01e7d3cefd5a770ca0ab48c435ea6116435f7ad8'
+    + '30b217b49f978a68e207ed9f462af7fb195b2115fe8f24f152e4ddc32202d6f2'
+    + 'b52fafbcfbc202d8a259a611e901d3f62d065eb13f09bbc45cd45119b843efaa'
+    + 'b375703739daced4dd4059fd71c3c47fc2f9939670fad4a46066adcc6a564578'
+    + '3308b90ffb72be04a6b147cbe38cc0c3b9267c296a92a7c69873f9f263be9703',
+      '80000000000000000000000000000000',
+      '128 bits key, set 1, vector 0',
+      dict (iv='00'*8)),
+
+    ( '00' * 512,
+      'e3be8fdd8beca2e3ea8ef9475b29a6e7003951e1097a5c38d23b7a5fad9f6844'
+    + 'b22c97559e2723c7cbbd3fe4fc8d9a0744652a83e72a9c461876af4d7ef1a117'
+    + '8da2b74eef1b6283e7e20166abcae538e9716e4669e2816b6b20c5c356802001'
+    + 'cc1403a9a117d12a2669f456366d6ebb0f1246f1265150f793cdb4b253e348ae'
+    + '203d89bc025e802a7e0e00621d70aa36b7e07cb1e7d5b38d5e222b8b0e4b8407'
+    + '0142b1e29504767d76824850320b5368129fdd74e861b498e3be8d16f2d7d169'
+    + '57be81f47b17d9ae7c4ff15429a73e10acf250ed3a90a93c711308a74c6216a9'
+    + 'ed84cd126da7f28e8abf8bb63517e1ca98e712f4fb2e1a6aed9fdc73291faa17'
+    + '958211c4ba2ebd5838c635edb81f513a91a294e194f1c039aeec657dce40aa7e'
+    + '7c0af57cacefa40c9f14b71a4b3456a63e162ec7d8d10b8ffb1810d71001b618'
+    + '2f9f73da53b85405c11f7b2d890fa8ae0c7f2e926d8a98c7ec4e91b65120e988'
+    + '349631a700c6facec3471cb0413656e75e309456584084d7e12c5b43a41c43ed'
+    + '9a048abd9b880da65f6a665a20fe7b77cd292fe62cae644b7f7df69f32bdb331'
+    + '903e6505ce44fdc293920c6a9ec7057e23df7dad298f82ddf4efb7fdc7bfc622'
+    + '696afcfd0cddcc83c7e77f11a649d79acdc3354e9635ff137e929933a0bd6f53'
+    + '77efa105a3a4266b7c0d089d08f1e855cc32b15b93784a36e56a76cc64bc8477',
+      '8000000000000000000000000000000000000000000000000000000000000000',
+      '256 bits key, set 1, vector 0',
+      dict (iv='00'*8)),
+
+    ( '00' * 512,
+      '169060ccb42bea7bee4d8012a02f3635eb7bca12859fa159cd559094b3507db8'
+    + '01735d1a1300102a9c9415546829cbd2021ba217b39b81d89c55b13d0c603359'
+    + '3f84159a3c84f4b4f4a0edcd9d38ff261a737909e0b66d68b5cac496f3a5be99'
+    + 'cb12c321ab711afaab36cc0947955e1a9bb952ed54425e7711279fbc81bb83f5'
+    + '6e55cea44e6daddb05858a153ea6213b3350c12aa1a83ef2726f09485fa71790'
+    + 'f9b9f922c7dda1113b1f9d56658ed3402803f511bc1f122601d5e7f0ff036e23'
+    + '23ef24bb24195b9fd574823cd8a40c29d86bd35c191e2038779ff696c712b6d8'
+    + '2e7014dbe1ac5d527af076c088c4a8d44317958189f6ef54933a7e0816b5b916'
+    + 'd8f12ed8afe9422b85e5cc9b8adec9d6cfabe8dbc1082bccc02f5a7266aa074c'
+    + 'a284e583a35837798cc0e69d4ce937653b8cdd65ce414b89138615ccb165ad19'
+    + '3c6b9c3d05eef4be921a10ea811fe61d11c6867600188e065daff90b509ec56b'
+    + 'd41e7e8968c478c78d590c2d2ee24ea009c8f49bc3d81672cfc47895a9e21c9a'
+    + '471ebf8e294bee5d2de436ac8d052bf31111b345f1da23c3a4d13b9fc5f0900a'
+    + 'a298f98f538973b8fad40d4d159777de2cfe2a3dead1645ddb49794827dba040'
+    + 'f70a0ff4ecd155e0f033604693a51e2363880e2ecf98699e7174af7c2c6b0fc6'
+    + '59ae329599a3949272a37b9b2183a0910922a3f325ae124dcbdd735364055ceb',
+      '09090909090909090909090909090909',
+      '128 bits key, set 2, vector 9',
+      dict (iv='00'*8)),
+
+    ( '00' * 512,
+      '7041e747ceb22ed7812985465f50333124f971da1c5d6efe5ca201b886f31046'
+    + 'e757e5c3ec914f60ed1f6bce2819b6810953f12b8ba1199bf82d746a8b8a88f1'
+    + '142002978ec4c35b95dc2c82990f9e847a0ab45f2ca72625f5190c820f29f3aa'
+    + 'f5f0b5572b06b70a144f2a240c3b3098d4831fa1ce1459f8d1df226a6a79b0ab'
+    + '41e91799ef31b5ff3d756c19126b19025858ee70fbd69f2be955cb011c005e31'
+    + '32b271b378f39b0cb594e95c99ce6ff17735a541891845bbf0450afcb4a850b9'
+    + '4ee90afb713ae7e01295c74381180a3816d7020d5a396c0d97aaa783eaabb6ec'
+    + '44d5111157f2212d1b1b8fca7893e8b520cd482418c272ab119b569a2b9598eb'
+    + '355624d12e79adab81153b58cd22eaf1b2a32395dedc4a1c66f4d274070b9800'
+    + 'ea95766f0245a8295f8aadb36ddbbdfa936417c8dbc6235d19494036964d3e70'
+    + 'b125b0f800c3d53881d9d11e7970f827c2f9556935cd29e927b0aceb8cae5fd4'
+    + '0fd88a8854010a33db94c96c98735858f1c5df6844f864feaca8f41539313e7f'
+    + '3c0610214912cd5e6362197646207e2d64cd5b26c9dfe0822629dcbeb16662e8'
+    + '9ff5bf5cf2e499138a5e27bd5027329d0e68ddf53103e9e409523662e27f61f6'
+    + '5cf38c1232023e6a6ef66c315bcb2a4328642faabb7ca1e889e039e7c444b34b'
+    + 'b3443f596ac730f3df3dfcdb343c307c80f76e43e8898c5e8f43dc3bb280add0',
+      '0909090909090909090909090909090909090909090909090909090909090909',
+      '256 bits key, set 2, vector 9',
+      dict (iv='00'*8)),
+
+    ( '00' * 1024,
+      '71daee5142d0728b41b6597933ebf467e43279e30978677078941602629cbf68'
+    + 'b73d6bd2c95f118d2b3e6ec955dabb6dc61c4143bc9a9b32b99dbe6866166dc0'
+    + '8631b7d6553050303d7252c264d3a90d26c853634813e09ad7545a6ce7e84a5d'
+    + 'fc75ec43431207d5319970b0faadb0e1510625bb54372c8515e28e2accf0a993'
+    + '0ad15f431874923d2a59e20d9f2a5367dba6051564f150287debb1db536ff9b0'
+    + '9ad981f25e5010d85d76ee0c305f755b25e6f09341e0812f95c94f42eead346e'
+    + '81f39c58c5faa2c88953dc0cac90469db2063cb5cdb22c9eae22afbf0506fca4'
+    + '1dc710b846fbdfe3c46883dd118f3a5e8b11b6afd9e71680d8666557301a2daa'
+    + 'fb9496c559784d35a035360885f9b17bd7191977deea932b981ebdb29057ae3c'
+    + '92cfeff5e6c5d0cb62f209ce342d4e35c69646ccd14e53350e488bb310a32f8b'
+    + '0248e70acc5b473df537ced3f81a014d4083932bedd62ed0e447b6766cd2604b'
+    + '706e9b346c4468beb46a34ecf1610ebd38331d52bf33346afec15eefb2a7699e'
+    + '8759db5a1f636a48a039688e39de34d995df9f27ed9edc8dd795e39e53d9d925'
+    + 'b278010565ff665269042f05096d94da3433d957ec13d2fd82a0066283d0d1ee'
+    + 'b81bf0ef133b7fd90248b8ffb499b2414cd4fa003093ff0864575a43749bf596'
+    + '02f26c717fa96b1d057697db08ebc3fa664a016a67dcef8807577cc3a09385d3'
+    + 'f4dc79b34364bb3b166ce65fe1dd28e3950fe6fa81063f7b16ce1c0e6daac1f8'
+    + '188455b77752045e863c9b256ad92bc6e2d08314c5bba191c274f42dfbb3d652'
+    + 'bb771956555e880f84cd8b827a4c5a52f3a099fa0259bd4aac3efd541f191170'
+    + '4412d6e85fbcc628b335875b9fef24807f6e1bc66c3186159e1e7f5a13913e02'
+    + 'd241ce2efdbcaa275039fb14eac5923d17ffbc7f1abd3b45e92127575bfbabf9'
+    + '3a257ebef0aa1437b326e41b585af572f7239c33b32981a1577a4f629b027e1e'
+    + 'b49d58cc497e944d79cef44357c2bf25442ab779651e991147bf79d6fd3a8868'
+    + '0cd3b1748e07fd10d78aceef6db8a5e563570d40127f754146c34a440f2a991a'
+    + '23fa39d365141f255041f2135c5cba4373452c114da1801bacca38610e3a6524'
+    + '2b822d32de4ab5a7d3cf9b61b37493c863bd12e2cae10530cddcda2cb7a5436b'
+    + 'ef8988d4d24e8cdc31b2d2a3586340bc5141f8f6632d0dd543bfed81eb471ba1'
+    + 'f3dc2225a15ffddcc03eb48f44e27e2aa390598adf83f15c6608a5f18d4dfcf0'
+    + 'f547d467a4d70b281c83a595d7660d0b62de78b9cca023cca89d7b1f83484638'
+    + '0e228c25f049184a612ef5bb3d37454e6cfa5b10dceda619d898a699b3c8981a'
+    + '173407844bb89b4287bf57dd6600c79e352c681d74b03fa7ea0d7bf6ad69f8a6'
+    + '8ecb001963bd2dd8a2baa0083ec09751cd9742402ad716be16d5c052304cfca1',
+      '0F62B5085BAE0154A7FA4DA0F34699EC',
+      '128 bits key, Set 6, vector#  3',
+      dict (iv='288FF65DC42B92F9')),
+
+    ( '00' * 1024,
+      '5e5e71f90199340304abb22a37b6625bf883fb89ce3b21f54a10b81066ef87da'
+    + '30b77699aa7379da595c77dd59542da208e5954f89e40eb7aa80a84a6176663f'
+    + 'd910cde567cf1ff60f7040548d8f376bfd1f44c4774aac37410ede7d5c3463fc'
+    + '4508a603201d8495ad257894e5eb1914b53e8da5e4bf2bc83ac87ce55cc67df7'
+    + '093d9853d2a83a9c8be969175df7c807a17156df768445dd0874a9271c6537f5'
+    + 'ce0466473582375f067fa4fcdaf65dbc0139cd75e8c21a482f28c0fb8c3d9f94'
+    + '22606cc8e88fe28fe73ec3cb10ff0e8cc5f2a49e540f007265c65b7130bfdb98'
+    + '795b1df9522da46e48b30e55d9f0d787955ece720205b29c85f3ad9be33b4459'
+    + '7d21b54d06c9a60b04b8e640c64e566e51566730e86cf128ab14174f91bd8981'
+    + 'a6fb00fe587bbd6c38b5a1dfdb04ea7e61536fd229f957aa9b070ca931358e85'
+    + '11b92c53c523cb54828fb1513c5636fa9a0645b4a3c922c0db94986d92f314ff'
+    + '7852c03b231e4dceea5dd8cced621869cff818daf3c270ff3c8be2e5c74be767'
+    + 'a4e1fdf3327a934fe31e46df5a74ae2021cee021d958c4f615263d99a5ddae7f'
+    + 'eab45e6eccbafefe4761c57750847b7e75ee2e2f14333c0779ce4678f47b1e1b'
+    + '760a03a5f17d6e91d4b42313b3f1077ee270e432fe04917ed1fc8babebf7c941'
+    + '42b80dfb44a28a2a3e59093027606f6860bfb8c2e5897078cfccda7314c70035'
+    + 'f137de6f05daa035891d5f6f76e1df0fce1112a2ff0ac2bd3534b5d1bf4c7165'
+    + 'fb40a1b6eacb7f295711c4907ae457514a7010f3a342b4427593d61ba993bc59'
+    + '8bd09c56b9ee53aac5dd861fa4b4bb53888952a4aa9d8ca8671582de716270e1'
+    + '97375b3ee49e51fa2bf4ef32015dd9a764d966aa2ae541592d0aa650849e99ca'
+    + '5c6c39beebf516457cc32fe4c105bff314a12f1ec94bdf4d626f5d9b1cbbde42'
+    + 'e5733f0885765ba29e2e82c829d312f5fc7e180679ac84826c08d0a644b326d0'
+    + '44da0fdcc75fa53cfe4ced0437fa4df5a7ecbca8b4cb7c4a9ecf9a60d00a56eb'
+    + '81da52adc21f508dbb60a9503a3cc94a896616d86020d5b0e5c637329b6d396a'
+    + '41a21ba2c4a9493cf33fa2d4f10f77d5b12fdad7e478ccfe79b74851fc96a7ca'
+    + '6320c5efd561a222c0ab0fb44bbda0e42149611d2262bb7d1719150fa798718a'
+    + '0eec63ee297cad459869c8b0f06c4e2b56cbac03cd2605b2a924efedf85ec8f1'
+    + '9b0b6c90e7cbd933223ffeb1b3a3f9677657905829294c4c70acdb8b0891b47d'
+    + '0875d0cd6c0f4efe2917fc44b581ef0d1e4280197065d07da34ab33283364552'
+    + 'efad0bd9257b059acdd0a6f246812feb69e7e76065f27dbc2eee94da9cc41835'
+    + 'bf826e36e5cebe5d4d6a37a6a666246290ce51a0c082718ab0ec855668db1add'
+    + 'a658e5f257e0db39384d02e6145c4c00eaa079098f6d820d872de711b6ed08cf',
+      '0F62B5085BAE0154A7FA4DA0F34699EC3F92E5388BDE3184D72A7DD02376C91C',
+      '256 bits key, Set 6, vector#  3',
+      dict (iv='288FF65DC42B92F9')),
+
+]
+
+
+class KeyLength(unittest.TestCase):
+
+    def runTest(self):
+
+        nonce = bchr(0) * 8
+        for key_length in (15, 30, 33):
+            key = bchr(1) * key_length
+            self.assertRaises(ValueError, Salsa20.new, key, nonce)
+
+
+class NonceTests(unittest.TestCase):
+
+    def test_invalid_nonce_length(self):
+        key = bchr(1) * 16
+        self.assertRaises(ValueError, Salsa20.new, key, bchr(0) * 7)
+        self.assertRaises(ValueError, Salsa20.new, key, bchr(0) * 9)
+
+    def test_default_nonce(self):
+
+        cipher1 = Salsa20.new(bchr(1) * 16)
+        cipher2 = Salsa20.new(bchr(1) * 16)
+        self.assertEqual(len(cipher1.nonce), 8)
+        self.assertNotEqual(cipher1.nonce, cipher2.nonce)
+
+
+class ByteArrayTest(unittest.TestCase):
+    """Verify we can encrypt or decrypt bytearrays"""
+
+    def runTest(self):
+
+        data = b"0123"
+        key = b"9" * 32
+        nonce = b"t" * 8
+
+        # Encryption
+        data_ba = bytearray(data)
+        key_ba = bytearray(key)
+        nonce_ba = bytearray(nonce)
+
+        cipher1 = Salsa20.new(key=key, nonce=nonce)
+        ct = cipher1.encrypt(data)
+
+        cipher2 = Salsa20.new(key=key_ba, nonce=nonce_ba)
+        key_ba[:1] = b'\xFF'
+        nonce_ba[:1] = b'\xFF'
+        ct_test = cipher2.encrypt(data_ba)
+
+        self.assertEqual(ct, ct_test)
+        self.assertEqual(cipher1.nonce, cipher2.nonce)
+
+        # Decryption
+        key_ba = bytearray(key)
+        nonce_ba = bytearray(nonce)
+        ct_ba = bytearray(ct)
+
+        cipher3 = Salsa20.new(key=key_ba, nonce=nonce_ba)
+        key_ba[:1] = b'\xFF'
+        nonce_ba[:1] = b'\xFF'
+        pt_test = cipher3.decrypt(ct_ba)
+
+        self.assertEqual(data, pt_test)
+
+
+class MemoryviewTest(unittest.TestCase):
+    """Verify we can encrypt or decrypt bytearrays"""
+
+    def runTest(self):
+
+        data = b"0123"
+        key = b"9" * 32
+        nonce = b"t" * 8
+
+        # Encryption
+        data_mv = memoryview(bytearray(data))
+        key_mv = memoryview(bytearray(key))
+        nonce_mv = memoryview(bytearray(nonce))
+
+        cipher1 = Salsa20.new(key=key, nonce=nonce)
+        ct = cipher1.encrypt(data)
+
+        cipher2 = Salsa20.new(key=key_mv, nonce=nonce_mv)
+        key_mv[:1] = b'\xFF'
+        nonce_mv[:1] = b'\xFF'
+        ct_test = cipher2.encrypt(data_mv)
+
+        self.assertEqual(ct, ct_test)
+        self.assertEqual(cipher1.nonce, cipher2.nonce)
+
+        # Decryption
+        key_mv = memoryview(bytearray(key))
+        nonce_mv = memoryview(bytearray(nonce))
+        ct_mv = memoryview(bytearray(ct))
+
+        cipher3 = Salsa20.new(key=key_mv, nonce=nonce_mv)
+        key_mv[:1] = b'\xFF'
+        nonce_mv[:1] = b'\xFF'
+        pt_test = cipher3.decrypt(ct_mv)
+
+        self.assertEqual(data, pt_test)
+
+
+class TestOutput(unittest.TestCase):
+
+    def runTest(self):
+        # Encrypt/Decrypt data and test output parameter
+
+        key = b'4' * 32
+        nonce = b'5' * 8
+        cipher = Salsa20.new(key=key, nonce=nonce)
+
+        pt = b'5' * 300
+        ct = cipher.encrypt(pt)
+
+        output = bytearray(len(pt))
+        cipher = Salsa20.new(key=key, nonce=nonce)
+        res = cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+        self.assertEqual(res, None)
+
+        cipher = Salsa20.new(key=key, nonce=nonce)
+        res = cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+        self.assertEqual(res, None)
+
+        output = memoryview(bytearray(len(pt)))
+        cipher = Salsa20.new(key=key, nonce=nonce)
+        cipher.encrypt(pt, output=output)
+        self.assertEqual(ct, output)
+
+        cipher = Salsa20.new(key=key, nonce=nonce)
+        cipher.decrypt(ct, output=output)
+        self.assertEqual(pt, output)
+
+        cipher = Salsa20.new(key=key, nonce=nonce)
+        self.assertRaises(TypeError, cipher.encrypt, pt, output=b'0'*len(pt))
+
+        cipher = Salsa20.new(key=key, nonce=nonce)
+        self.assertRaises(TypeError, cipher.decrypt, ct, output=b'0'*len(ct))
+
+        shorter_output = bytearray(len(pt) - 1)
+
+        cipher = Salsa20.new(key=key, nonce=nonce)
+        self.assertRaises(ValueError, cipher.encrypt, pt, output=shorter_output)
+
+        cipher = Salsa20.new(key=key, nonce=nonce)
+        self.assertRaises(ValueError, cipher.decrypt, ct, output=shorter_output)
+
+
+def get_tests(config={}):
+    tests = make_stream_tests(Salsa20, "Salsa20", test_data)
+    tests.append(KeyLength())
+    tests += list_test_cases(NonceTests)
+    tests.append(ByteArrayTest())
+    tests.append(MemoryviewTest())
+    tests.append(TestOutput())
+
+    return tests
+
+
+if __name__ == '__main__':
+    import unittest
+    suite = lambda: unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')
+
+# vim:set ts=4 sw=4 sts=4 expandtab:

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_pkcs1_15.py

@@ -0,0 +1,283 @@
+# -*- coding: utf-8 -*-
+#
+#  SelfTest/Cipher/test_pkcs1_15.py: Self-test for PKCS#1 v1.5 encryption
+#
+# ===================================================================
+# The contents of this file are dedicated to the public domain.  To
+# the extent that dedication to the public domain is not available,
+# everyone is granted a worldwide, perpetual, royalty-free,
+# non-exclusive license to exercise all rights associated with the
+# contents of this file for any purpose whatsoever.
+# No rights are reserved.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+# ===================================================================
+
+from __future__ import print_function
+
+import unittest
+
+from Crypto.PublicKey import RSA
+from Crypto.SelfTest.st_common import list_test_cases, a2b_hex
+from Crypto import Random
+from Crypto.Cipher import PKCS1_v1_5 as PKCS
+from Crypto.Util.py3compat import b
+from Crypto.Util.number import bytes_to_long, long_to_bytes
+from Crypto.SelfTest.loader import load_test_vectors_wycheproof
+
+
+def rws(t):
+    """Remove white spaces, tabs, and new lines from a string"""
+    for c in ['\n', '\t', ' ']:
+        t = t.replace(c, '')
+    return t
+
+
+def t2b(t):
+    """Convert a text string with bytes in hex form to a byte string"""
+    clean = b(rws(t))
+    if len(clean) % 2 == 1:
+        raise ValueError("Even number of characters expected")
+    return a2b_hex(clean)
+
+
+class PKCS1_15_Tests(unittest.TestCase):
+
+        def setUp(self):
+                self.rng = Random.new().read
+                self.key1024 = RSA.generate(1024, self.rng)
+
+        # List of tuples with test data for PKCS#1 v1.5.
+        # Each tuple is made up by:
+        #       Item #0: dictionary with RSA key component, or key to import
+        #       Item #1: plaintext
+        #       Item #2: ciphertext
+        #       Item #3: random data
+
+        _testData = (
+
+                #
+                # Generated with openssl 0.9.8o
+                #
+                (
+                # Private key
+                '''-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----''',
+                # Plaintext
+                '''THIS IS PLAINTEXT\x0A''',
+                # Ciphertext
+                '''3f dc fd 3c cd 5c 9b 12  af 65 32 e3 f7 d0 da 36
+                8f 8f d9 e3 13 1c 7f c8  b3 f9 c1 08 e4 eb 79 9c
+                91 89 1f 96 3b 94 77 61  99 a4 b1 ee 5d e6 17 c9
+                5d 0a b5 63 52 0a eb 00  45 38 2a fb b0 71 3d 11
+                f7 a1 9e a7 69 b3 af 61  c0 bb 04 5b 5d 4b 27 44
+                1f 5b 97 89 ba 6a 08 95  ee 4f a2 eb 56 64 e5 0f
+                da 7c f9 9a 61 61 06 62  ed a0 bc 5f aa 6c 31 78
+                70 28 1a bb 98 3c e3 6a  60 3c d1 0b 0f 5a f4 75''',
+                # Random data
+                '''eb d7 7d 86 a4 35 23 a3 54 7e 02 0b 42 1d
+                61 6c af 67 b8 4e 17 56 80 66 36 04 64 34 26 8a
+                47 dd 44 b3 1a b2 17 60 f4 91 2e e2 b5 95 64 cc
+                f9 da c8 70 94 54 86 4c ef 5b 08 7d 18 c4 ab 8d
+                04 06 33 8f ca 15 5f 52 60 8a a1 0c f5 08 b5 4c
+                bb 99 b8 94 25 04 9c e6 01 75 e6 f9 63 7a 65 61
+                13 8a a7 47 77 81 ae 0d b8 2c 4d 50 a5'''
+                ),
+        )
+
+        def testEncrypt1(self):
+                for test in self._testData:
+                        # Build the key
+                        key = RSA.importKey(test[0])
+                        # RNG that takes its random numbers from a pool given
+                        # at initialization
+                        class randGen:
+                            def __init__(self, data):
+                                self.data = data
+                                self.idx = 0
+                            def __call__(self, N):
+                                r = self.data[self.idx:self.idx+N]
+                                self.idx += N
+                                return r
+                        # The real test
+                        cipher = PKCS.new(key, randfunc=randGen(t2b(test[3])))
+                        ct = cipher.encrypt(b(test[1]))
+                        self.assertEqual(ct, t2b(test[2]))
+
+        def testEncrypt2(self):
+                # Verify that encryption fail if plaintext is too long
+                pt = '\x00'*(128-11+1)
+                cipher = PKCS.new(self.key1024)
+                self.assertRaises(ValueError, cipher.encrypt, pt)
+
+        def testVerify1(self):
+            for test in self._testData:
+                key = RSA.importKey(test[0])
+                expected_pt = b(test[1])
+                ct = t2b(test[2])
+                cipher = PKCS.new(key)
+
+                # The real test
+                pt = cipher.decrypt(ct, None)
+                self.assertEqual(pt, expected_pt)
+
+                pt = cipher.decrypt(ct, b'\xFF' * len(expected_pt))
+                self.assertEqual(pt, expected_pt)
+
+        def testVerify2(self):
+            # Verify that decryption fails if ciphertext is not as long as
+            # RSA modulus
+            cipher = PKCS.new(self.key1024)
+            self.assertRaises(ValueError, cipher.decrypt, '\x00'*127, "---")
+            self.assertRaises(ValueError, cipher.decrypt, '\x00'*129, "---")
+
+            # Verify that decryption fails if there are less then 8 non-zero padding
+            # bytes
+            pt = b('\x00\x02' + '\xFF'*7 + '\x00' + '\x45'*118)
+            pt_int = bytes_to_long(pt)
+            ct_int = self.key1024._encrypt(pt_int)
+            ct = long_to_bytes(ct_int, 128)
+            self.assertEqual(b"---", cipher.decrypt(ct, b"---"))
+
+        def testEncryptVerify1(self):
+            # Encrypt/Verify messages of length [0..RSAlen-11]
+            # and therefore padding [8..117]
+            for pt_len in range(0, 128 - 11 + 1):
+                pt = self.rng(pt_len)
+                cipher = PKCS.new(self.key1024)
+                ct = cipher.encrypt(pt)
+                pt2 = cipher.decrypt(ct, b'\xAA' * pt_len)
+                self.assertEqual(pt, pt2)
+
+        def test_encrypt_verify_exp_pt_len(self):
+
+            cipher = PKCS.new(self.key1024)
+            pt = b'5' * 16
+            ct = cipher.encrypt(pt)
+            sentinel = b'\xAA' * 16
+
+            pt_A = cipher.decrypt(ct, sentinel, 16)
+            self.assertEqual(pt, pt_A)
+
+            pt_B = cipher.decrypt(ct, sentinel, 15)
+            self.assertEqual(sentinel, pt_B)
+
+            pt_C = cipher.decrypt(ct, sentinel, 17)
+            self.assertEqual(sentinel, pt_C)
+
+        def testByteArray(self):
+            pt = b"XER"
+            cipher = PKCS.new(self.key1024)
+            ct = cipher.encrypt(bytearray(pt))
+            pt2 = cipher.decrypt(bytearray(ct), '\xFF' * len(pt))
+            self.assertEqual(pt, pt2)
+
+        def testMemoryview(self):
+            pt = b"XER"
+            cipher = PKCS.new(self.key1024)
+            ct = cipher.encrypt(memoryview(bytearray(pt)))
+            pt2 = cipher.decrypt(memoryview(bytearray(ct)), b'\xFF' * len(pt))
+            self.assertEqual(pt, pt2)
+
+        def test_return_type(self):
+            pt = b"XYZ"
+            cipher = PKCS.new(self.key1024)
+            ct = cipher.encrypt(pt)
+            self.assertTrue(isinstance(ct, bytes))
+            pt2 = cipher.decrypt(ct, b'\xAA' * 3)
+            self.assertTrue(isinstance(pt2, bytes))
+
+
+class TestVectorsWycheproof(unittest.TestCase):
+
+    def __init__(self, wycheproof_warnings, skip_slow_tests):
+        unittest.TestCase.__init__(self)
+        self._wycheproof_warnings = wycheproof_warnings
+        self._skip_slow_tests = skip_slow_tests
+        self._id = "None"
+
+    def load_tests(self, filename):
+
+        def filter_rsa(group):
+            return RSA.import_key(group['privateKeyPem'])
+
+        result = load_test_vectors_wycheproof(("Cipher", "wycheproof"),
+                                              filename,
+                                              "Wycheproof PKCS#1v1.5 (%s)" % filename,
+                                              group_tag={'rsa_key': filter_rsa}
+                                              )
+        return result
+
+    def setUp(self):
+        self.tv = []
+        self.tv.extend(self.load_tests("rsa_pkcs1_2048_test.json"))
+        if not self._skip_slow_tests:
+            self.tv.extend(self.load_tests("rsa_pkcs1_3072_test.json"))
+            self.tv.extend(self.load_tests("rsa_pkcs1_4096_test.json"))
+
+    def shortDescription(self):
+        return self._id
+
+    def warn(self, tv):
+        if tv.warning and self._wycheproof_warnings:
+            import warnings
+            warnings.warn("Wycheproof warning: %s (%s)" % (self._id, tv.comment))
+
+    def test_decrypt(self, tv):
+        self._id = "Wycheproof Decrypt PKCS#1v1.5 Test #%s" % tv.id
+        sentinel = b'\xAA' * max(3, len(tv.msg))
+        cipher = PKCS.new(tv.rsa_key)
+        try:
+            pt = cipher.decrypt(tv.ct, sentinel=sentinel)
+        except ValueError:
+            assert not tv.valid
+        else:
+            if pt == sentinel:
+                assert not tv.valid
+            else:
+                assert tv.valid
+                self.assertEqual(pt, tv.msg)
+                self.warn(tv)
+
+    def runTest(self):
+
+        for tv in self.tv:
+            self.test_decrypt(tv)
+
+
+def get_tests(config={}):
+    skip_slow_tests = not config.get('slow_tests')
+    wycheproof_warnings = config.get('wycheproof_warnings')
+
+    tests = []
+    tests += list_test_cases(PKCS1_15_Tests)
+    tests += [TestVectorsWycheproof(wycheproof_warnings, skip_slow_tests)]
+    return tests
+
+
+if __name__ == '__main__':
+    def suite():
+        return unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')
+
+# vim:set ts=4 sw=4 sts=4 expandtab:

backend/venv/Lib/site-packages/Crypto/SelfTest/Cipher/test_pkcs1_oaep.py

@@ -0,0 +1,506 @@
+# -*- coding: utf-8 -*-
+#
+#  SelfTest/Cipher/test_pkcs1_oaep.py: Self-test for PKCS#1 OAEP encryption
+#
+# ===================================================================
+# The contents of this file are dedicated to the public domain.  To
+# the extent that dedication to the public domain is not available,
+# everyone is granted a worldwide, perpetual, royalty-free,
+# non-exclusive license to exercise all rights associated with the
+# contents of this file for any purpose whatsoever.
+# No rights are reserved.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+# ===================================================================
+
+import unittest
+
+from Crypto.SelfTest.st_common import list_test_cases, a2b_hex
+from Crypto.SelfTest.loader import load_test_vectors_wycheproof
+
+from Crypto.PublicKey import RSA
+from Crypto.Cipher import PKCS1_OAEP as PKCS
+from Crypto.Hash import MD2, MD5, SHA1, SHA256, RIPEMD160, SHA224, SHA384, SHA512
+from Crypto import Random
+from Crypto.Signature.pss import MGF1
+
+from Crypto.Util.py3compat import b, bchr
+
+
+def rws(t):
+    """Remove white spaces, tabs, and new lines from a string"""
+    for c in ['\n', '\t', ' ']:
+        t = t.replace(c, '')
+    return t
+
+
+def t2b(t):
+    """Convert a text string with bytes in hex form to a byte string"""
+    clean = rws(t)
+    if len(clean) % 2 == 1:
+        raise ValueError("Even number of characters expected")
+    return a2b_hex(clean)
+
+
+class PKCS1_OAEP_Tests(unittest.TestCase):
+
+        def setUp(self):
+                self.rng = Random.new().read
+                self.key1024 = RSA.generate(1024, self.rng)
+
+        # List of tuples with test data for PKCS#1 OAEP
+        # Each tuple is made up by:
+        #       Item #0: dictionary with RSA key component
+        #       Item #1: plaintext
+        #       Item #2: ciphertext
+        #       Item #3: random data (=seed)
+        #       Item #4: hash object
+
+        _testData = (
+
+                #
+                # From in oaep-int.txt to be found in
+                # ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-1/pkcs-1v2-1-vec.zip
+                #
+                (
+                # Private key
+                {
+                'n':'''bb f8 2f 09 06 82 ce 9c 23 38 ac 2b 9d a8 71 f7
+                36 8d 07 ee d4 10 43 a4 40 d6 b6 f0 74 54 f5 1f
+                b8 df ba af 03 5c 02 ab 61 ea 48 ce eb 6f cd 48
+                76 ed 52 0d 60 e1 ec 46 19 71 9d 8a 5b 8b 80 7f
+                af b8 e0 a3 df c7 37 72 3e e6 b4 b7 d9 3a 25 84
+                ee 6a 64 9d 06 09 53 74 88 34 b2 45 45 98 39 4e
+                e0 aa b1 2d 7b 61 a5 1f 52 7a 9a 41 f6 c1 68 7f
+                e2 53 72 98 ca 2a 8f 59 46 f8 e5 fd 09 1d bd cb''',
+                # Public key
+                'e':'11',
+                # In the test vector, only p and q were given...
+                # d is computed offline as e^{-1} mod (p-1)(q-1)
+                'd':'''a5dafc5341faf289c4b988db30c1cdf83f31251e0
+                668b42784813801579641b29410b3c7998d6bc465745e5c3
+                92669d6870da2c082a939e37fdcb82ec93edac97ff3ad595
+                0accfbc111c76f1a9529444e56aaf68c56c092cd38dc3bef
+                5d20a939926ed4f74a13eddfbe1a1cecc4894af9428c2b7b
+                8883fe4463a4bc85b1cb3c1'''
+                }
+                ,
+                # Plaintext
+                '''d4 36 e9 95 69 fd 32 a7 c8 a0 5b bc 90 d3 2c 49''',
+                # Ciphertext
+                '''12 53 e0 4d c0 a5 39 7b b4 4a 7a b8 7e 9b f2 a0
+                39 a3 3d 1e 99 6f c8 2a 94 cc d3 00 74 c9 5d f7
+                63 72 20 17 06 9e 52 68 da 5d 1c 0b 4f 87 2c f6
+                53 c1 1d f8 23 14 a6 79 68 df ea e2 8d ef 04 bb
+                6d 84 b1 c3 1d 65 4a 19 70 e5 78 3b d6 eb 96 a0
+                24 c2 ca 2f 4a 90 fe 9f 2e f5 c9 c1 40 e5 bb 48
+                da 95 36 ad 87 00 c8 4f c9 13 0a de a7 4e 55 8d
+                51 a7 4d df 85 d8 b5 0d e9 68 38 d6 06 3e 09 55''',
+                # Random
+                '''aa fd 12 f6 59 ca e6 34 89 b4 79 e5 07 6d de c2
+                f0 6c b5 8f''',
+                # Hash
+                SHA1,
+               ),
+
+                #
+                # From in oaep-vect.txt to be found in Example 1.1
+                # ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-1/pkcs-1v2-1-vec.zip
+                #
+                (
+                # Private key
+                {
+                'n':'''a8 b3 b2 84 af 8e b5 0b 38 70 34 a8 60 f1 46 c4
+                91 9f 31 87 63 cd 6c 55 98 c8 ae 48 11 a1 e0 ab
+                c4 c7 e0 b0 82 d6 93 a5 e7 fc ed 67 5c f4 66 85
+                12 77 2c 0c bc 64 a7 42 c6 c6 30 f5 33 c8 cc 72
+                f6 2a e8 33 c4 0b f2 58 42 e9 84 bb 78 bd bf 97
+                c0 10 7d 55 bd b6 62 f5 c4 e0 fa b9 84 5c b5 14
+                8e f7 39 2d d3 aa ff 93 ae 1e 6b 66 7b b3 d4 24
+                76 16 d4 f5 ba 10 d4 cf d2 26 de 88 d3 9f 16 fb''',
+                'e':'''01 00 01''',
+                'd':'''53 33 9c fd b7 9f c8 46 6a 65 5c 73 16 ac a8 5c
+                55 fd 8f 6d d8 98 fd af 11 95 17 ef 4f 52 e8 fd
+                8e 25 8d f9 3f ee 18 0f a0 e4 ab 29 69 3c d8 3b
+                15 2a 55 3d 4a c4 d1 81 2b 8b 9f a5 af 0e 7f 55
+                fe 73 04 df 41 57 09 26 f3 31 1f 15 c4 d6 5a 73
+                2c 48 31 16 ee 3d 3d 2d 0a f3 54 9a d9 bf 7c bf
+                b7 8a d8 84 f8 4d 5b eb 04 72 4d c7 36 9b 31 de
+                f3 7d 0c f5 39 e9 cf cd d3 de 65 37 29 ea d5 d1 '''
+                }
+                ,
+                # Plaintext
+                '''66 28 19 4e 12 07 3d b0 3b a9 4c da 9e f9 53 23
+                97 d5 0d ba 79 b9 87 00 4a fe fe 34''',
+                # Ciphertext
+                '''35 4f e6 7b 4a 12 6d 5d 35 fe 36 c7 77 79 1a 3f
+                7b a1 3d ef 48 4e 2d 39 08 af f7 22 fa d4 68 fb
+                21 69 6d e9 5d 0b e9 11 c2 d3 17 4f 8a fc c2 01
+                03 5f 7b 6d 8e 69 40 2d e5 45 16 18 c2 1a 53 5f
+                a9 d7 bf c5 b8 dd 9f c2 43 f8 cf 92 7d b3 13 22
+                d6 e8 81 ea a9 1a 99 61 70 e6 57 a0 5a 26 64 26
+                d9 8c 88 00 3f 84 77 c1 22 70 94 a0 d9 fa 1e 8c
+                40 24 30 9c e1 ec cc b5 21 00 35 d4 7a c7 2e 8a''',
+                # Random
+                '''18 b7 76 ea 21 06 9d 69 77 6a 33 e9 6b ad 48 e1
+                dd a0 a5 ef''',
+                SHA1
+                ),
+
+                #
+                # From in oaep-vect.txt to be found in Example 2.1
+                # ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-1/pkcs-1v2-1-vec.zip
+                #
+                (
+                # Private key
+                {
+                'n':'''01 94 7c 7f ce 90 42 5f 47 27 9e 70 85 1f 25 d5
+                e6 23 16 fe 8a 1d f1 93 71 e3 e6 28 e2 60 54 3e
+                49 01 ef 60 81 f6 8c 0b 81 41 19 0d 2a e8 da ba
+                7d 12 50 ec 6d b6 36 e9 44 ec 37 22 87 7c 7c 1d
+                0a 67 f1 4b 16 94 c5 f0 37 94 51 a4 3e 49 a3 2d
+                de 83 67 0b 73 da 91 a1 c9 9b c2 3b 43 6a 60 05
+                5c 61 0f 0b af 99 c1 a0 79 56 5b 95 a3 f1 52 66
+                32 d1 d4 da 60 f2 0e da 25 e6 53 c4 f0 02 76 6f
+                45''',
+                'e':'''01 00 01''',
+                'd':'''08 23 f2 0f ad b5 da 89 08 8a 9d 00 89 3e 21 fa
+                4a 1b 11 fb c9 3c 64 a3 be 0b aa ea 97 fb 3b 93
+                c3 ff 71 37 04 c1 9c 96 3c 1d 10 7a ae 99 05 47
+                39 f7 9e 02 e1 86 de 86 f8 7a 6d de fe a6 d8 cc
+                d1 d3 c8 1a 47 bf a7 25 5b e2 06 01 a4 a4 b2 f0
+                8a 16 7b 5e 27 9d 71 5b 1b 45 5b dd 7e ab 24 59
+                41 d9 76 8b 9a ce fb 3c cd a5 95 2d a3 ce e7 25
+                25 b4 50 16 63 a8 ee 15 c9 e9 92 d9 24 62 fe 39'''
+                },
+                # Plaintext
+                '''8f f0 0c aa 60 5c 70 28 30 63 4d 9a 6c 3d 42 c6
+                52 b5 8c f1 d9 2f ec 57 0b ee e7''',
+                # Ciphertext
+                '''01 81 af 89 22 b9 fc b4 d7 9d 92 eb e1 98 15 99
+                2f c0 c1 43 9d 8b cd 49 13 98 a0 f4 ad 3a 32 9a
+                5b d9 38 55 60 db 53 26 83 c8 b7 da 04 e4 b1 2a
+                ed 6a ac df 47 1c 34 c9 cd a8 91 ad dc c2 df 34
+                56 65 3a a6 38 2e 9a e5 9b 54 45 52 57 eb 09 9d
+                56 2b be 10 45 3f 2b 6d 13 c5 9c 02 e1 0f 1f 8a
+                bb 5d a0 d0 57 09 32 da cf 2d 09 01 db 72 9d 0f
+                ef cc 05 4e 70 96 8e a5 40 c8 1b 04 bc ae fe 72
+                0e''',
+                # Random
+                '''8c 40 7b 5e c2 89 9e 50 99 c5 3e 8c e7 93 bf 94
+                e7 1b 17 82''',
+                SHA1
+                ),
+
+                #
+                # From in oaep-vect.txt to be found in Example 10.1
+                # ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-1/pkcs-1v2-1-vec.zip
+                #
+                (
+                # Private key
+                {
+                'n':'''ae 45 ed 56 01 ce c6 b8 cc 05 f8 03 93 5c 67 4d
+                db e0 d7 5c 4c 09 fd 79 51 fc 6b 0c ae c3 13 a8
+                df 39 97 0c 51 8b ff ba 5e d6 8f 3f 0d 7f 22 a4
+                02 9d 41 3f 1a e0 7e 4e be 9e 41 77 ce 23 e7 f5
+                40 4b 56 9e 4e e1 bd cf 3c 1f b0 3e f1 13 80 2d
+                4f 85 5e b9 b5 13 4b 5a 7c 80 85 ad ca e6 fa 2f
+                a1 41 7e c3 76 3b e1 71 b0 c6 2b 76 0e de 23 c1
+                2a d9 2b 98 08 84 c6 41 f5 a8 fa c2 6b da d4 a0
+                33 81 a2 2f e1 b7 54 88 50 94 c8 25 06 d4 01 9a
+                53 5a 28 6a fe b2 71 bb 9b a5 92 de 18 dc f6 00
+                c2 ae ea e5 6e 02 f7 cf 79 fc 14 cf 3b dc 7c d8
+                4f eb bb f9 50 ca 90 30 4b 22 19 a7 aa 06 3a ef
+                a2 c3 c1 98 0e 56 0c d6 4a fe 77 95 85 b6 10 76
+                57 b9 57 85 7e fd e6 01 09 88 ab 7d e4 17 fc 88
+                d8 f3 84 c4 e6 e7 2c 3f 94 3e 0c 31 c0 c4 a5 cc
+                36 f8 79 d8 a3 ac 9d 7d 59 86 0e aa da 6b 83 bb''',
+                'e':'''01 00 01''',
+                'd':'''05 6b 04 21 6f e5 f3 54 ac 77 25 0a 4b 6b 0c 85
+                25 a8 5c 59 b0 bd 80 c5 64 50 a2 2d 5f 43 8e 59
+                6a 33 3a a8 75 e2 91 dd 43 f4 8c b8 8b 9d 5f c0
+                d4 99 f9 fc d1 c3 97 f9 af c0 70 cd 9e 39 8c 8d
+                19 e6 1d b7 c7 41 0a 6b 26 75 df bf 5d 34 5b 80
+                4d 20 1a dd 50 2d 5c e2 df cb 09 1c e9 99 7b be
+                be 57 30 6f 38 3e 4d 58 81 03 f0 36 f7 e8 5d 19
+                34 d1 52 a3 23 e4 a8 db 45 1d 6f 4a 5b 1b 0f 10
+                2c c1 50 e0 2f ee e2 b8 8d ea 4a d4 c1 ba cc b2
+                4d 84 07 2d 14 e1 d2 4a 67 71 f7 40 8e e3 05 64
+                fb 86 d4 39 3a 34 bc f0 b7 88 50 1d 19 33 03 f1
+                3a 22 84 b0 01 f0 f6 49 ea f7 93 28 d4 ac 5c 43
+                0a b4 41 49 20 a9 46 0e d1 b7 bc 40 ec 65 3e 87
+                6d 09 ab c5 09 ae 45 b5 25 19 01 16 a0 c2 61 01
+                84 82 98 50 9c 1c 3b f3 a4 83 e7 27 40 54 e1 5e
+                97 07 50 36 e9 89 f6 09 32 80 7b 52 57 75 1e 79'''
+                },
+                # Plaintext
+                '''8b ba 6b f8 2a 6c 0f 86 d5 f1 75 6e 97 95 68 70
+                b0 89 53 b0 6b 4e b2 05 bc 16 94 ee''',
+                # Ciphertext
+                '''53 ea 5d c0 8c d2 60 fb 3b 85 85 67 28 7f a9 15
+                52 c3 0b 2f eb fb a2 13 f0 ae 87 70 2d 06 8d 19
+                ba b0 7f e5 74 52 3d fb 42 13 9d 68 c3 c5 af ee
+                e0 bf e4 cb 79 69 cb f3 82 b8 04 d6 e6 13 96 14
+                4e 2d 0e 60 74 1f 89 93 c3 01 4b 58 b9 b1 95 7a
+                8b ab cd 23 af 85 4f 4c 35 6f b1 66 2a a7 2b fc
+                c7 e5 86 55 9d c4 28 0d 16 0c 12 67 85 a7 23 eb
+                ee be ff 71 f1 15 94 44 0a ae f8 7d 10 79 3a 87
+                74 a2 39 d4 a0 4c 87 fe 14 67 b9 da f8 52 08 ec
+                6c 72 55 79 4a 96 cc 29 14 2f 9a 8b d4 18 e3 c1
+                fd 67 34 4b 0c d0 82 9d f3 b2 be c6 02 53 19 62
+                93 c6 b3 4d 3f 75 d3 2f 21 3d d4 5c 62 73 d5 05
+                ad f4 cc ed 10 57 cb 75 8f c2 6a ee fa 44 12 55
+                ed 4e 64 c1 99 ee 07 5e 7f 16 64 61 82 fd b4 64
+                73 9b 68 ab 5d af f0 e6 3e 95 52 01 68 24 f0 54
+                bf 4d 3c 8c 90 a9 7b b6 b6 55 32 84 eb 42 9f cc''',
+                # Random
+                '''47 e1 ab 71 19 fe e5 6c 95 ee 5e aa d8 6f 40 d0
+                aa 63 bd 33''',
+                SHA1
+               ),
+        )
+
+        def testEncrypt1(self):
+            # Verify encryption using all test vectors
+            for test in self._testData:
+                # Build the key
+                comps = [int(rws(test[0][x]), 16) for x in ('n', 'e')]
+                key = RSA.construct(comps)
+
+                # RNG that takes its random numbers from a pool given
+                # at initialization
+                class randGen:
+
+                    def __init__(self, data):
+                        self.data = data
+                        self.idx = 0
+
+                    def __call__(self, N):
+                        r = self.data[self.idx:N]
+                        self.idx += N
+                        return r
+
+                # The real test
+                cipher = PKCS.new(key, test[4], randfunc=randGen(t2b(test[3])))
+                ct = cipher.encrypt(t2b(test[1]))
+                self.assertEqual(ct, t2b(test[2]))
+
+        def testEncrypt2(self):
+            # Verify that encryption fails if plaintext is too long
+            pt = '\x00'*(128-2*20-2+1)
+            cipher = PKCS.new(self.key1024)
+            self.assertRaises(ValueError, cipher.encrypt, pt)
+
+        def testDecrypt1(self):
+            # Verify decryption using all test vectors
+            for test in self._testData:
+                # Build the key
+                comps = [int(rws(test[0][x]),16) for x in ('n', 'e', 'd')]
+                key = RSA.construct(comps)
+                # The real test
+                cipher = PKCS.new(key, test[4])
+                pt = cipher.decrypt(t2b(test[2]))
+                self.assertEqual(pt, t2b(test[1]))
+
+        def testDecrypt2(self):
+            # Simplest possible negative tests
+            for ct_size in (127, 128, 129):
+                cipher = PKCS.new(self.key1024)
+                self.assertRaises(ValueError, cipher.decrypt, bchr(0x00)*ct_size)
+
+        def testEncryptDecrypt1(self):
+            # Encrypt/Decrypt messages of length [0..128-2*20-2]
+            for pt_len in range(0, 128-2*20-2):
+                pt = self.rng(pt_len)
+                cipher = PKCS.new(self.key1024)
+                ct = cipher.encrypt(pt)
+                pt2 = cipher.decrypt(ct)
+                self.assertEqual(pt, pt2)
+
+        def testEncryptDecrypt2(self):
+            # Helper function to monitor what's requested from RNG
+            global asked
+
+            def localRng(N):
+                global asked
+                asked += N
+                return self.rng(N)
+
+            # Verify that OAEP is friendly to all hashes
+            for hashmod in (MD2, MD5, SHA1, SHA256, RIPEMD160):
+                # Verify that encrypt() asks for as many random bytes
+                # as the hash output size
+                asked = 0
+                pt = self.rng(40)
+                cipher = PKCS.new(self.key1024, hashmod, randfunc=localRng)
+                ct = cipher.encrypt(pt)
+                self.assertEqual(cipher.decrypt(ct), pt)
+                self.assertEqual(asked, hashmod.digest_size)
+
+        def testEncryptDecrypt3(self):
+            # Verify that OAEP supports labels
+            pt = self.rng(35)
+            xlabel = self.rng(22)
+            cipher = PKCS.new(self.key1024, label=xlabel)
+            ct = cipher.encrypt(pt)
+            self.assertEqual(cipher.decrypt(ct), pt)
+
+        def testEncryptDecrypt4(self):
+            # Verify that encrypt() uses the custom MGF
+            global mgfcalls
+            # Helper function to monitor what's requested from MGF
+
+            def newMGF(seed, maskLen):
+                global mgfcalls
+                mgfcalls += 1
+                return b'\x00' * maskLen
+
+            mgfcalls = 0
+            pt = self.rng(32)
+            cipher = PKCS.new(self.key1024, mgfunc=newMGF)
+            ct = cipher.encrypt(pt)
+            self.assertEqual(mgfcalls, 2)
+            self.assertEqual(cipher.decrypt(ct), pt)
+
+        def testByteArray(self):
+            pt = b("XER")
+            cipher = PKCS.new(self.key1024)
+            ct = cipher.encrypt(bytearray(pt))
+            pt2 = cipher.decrypt(bytearray(ct))
+            self.assertEqual(pt, pt2)
+
+        def testMemoryview(self):
+            pt = b("XER")
+            cipher = PKCS.new(self.key1024)
+            ct = cipher.encrypt(memoryview(bytearray(pt)))
+            pt2 = cipher.decrypt(memoryview(bytearray(ct)))
+            self.assertEqual(pt, pt2)
+
+
+class TestVectorsWycheproof(unittest.TestCase):
+
+    def __init__(self, wycheproof_warnings, skip_slow_tests):
+        unittest.TestCase.__init__(self)
+        self._wycheproof_warnings = wycheproof_warnings
+        self._skip_slow_tests = skip_slow_tests
+        self._id = "None"
+
+    def load_tests(self, filename):
+
+        def filter_rsa(group):
+            return RSA.import_key(group['privateKeyPem'])
+
+        def filter_sha(group):
+            if group['sha'] == "SHA-1":
+                return SHA1
+            elif group['sha'] == "SHA-224":
+                return SHA224
+            elif group['sha'] == "SHA-256":
+                return SHA256
+            elif group['sha'] == "SHA-384":
+                return SHA384
+            elif group['sha'] == "SHA-512":
+                return SHA512
+            else:
+                raise ValueError("Unknown sha " + group['sha'])
+
+        def filter_mgf(group):
+            if group['mgfSha'] == "SHA-1":
+                return lambda x, y: MGF1(x, y, SHA1)
+            elif group['mgfSha'] == "SHA-224":
+                return lambda x, y: MGF1(x, y, SHA224)
+            elif group['mgfSha'] == "SHA-256":
+                return lambda x, y: MGF1(x, y, SHA256)
+            elif group['mgfSha'] == "SHA-384":
+                return lambda x, y: MGF1(x, y, SHA384)
+            elif group['mgfSha'] == "SHA-512":
+                return lambda x, y: MGF1(x, y, SHA512)
+            else:
+                raise ValueError("Unknown mgf/sha " + group['mgfSha'])
+
+        def filter_algo(group):
+            return "%s with MGF1/%s" % (group['sha'], group['mgfSha'])
+
+        result = load_test_vectors_wycheproof(("Cipher", "wycheproof"),
+                                              filename,
+                                              "Wycheproof PKCS#1 OAEP (%s)" % filename,
+                                              group_tag={'rsa_key': filter_rsa,
+                                                         'hash_mod': filter_sha,
+                                                         'mgf': filter_mgf,
+                                                         'algo': filter_algo}
+                                              )
+        return result
+
+    def setUp(self):
+        self.tv = []
+        self.tv.extend(self.load_tests("rsa_oaep_2048_sha1_mgf1sha1_test.json"))
+        self.tv.extend(self.load_tests("rsa_oaep_2048_sha224_mgf1sha1_test.json"))
+        self.tv.extend(self.load_tests("rsa_oaep_2048_sha224_mgf1sha224_test.json"))
+        self.tv.extend(self.load_tests("rsa_oaep_2048_sha256_mgf1sha1_test.json"))
+        self.tv.extend(self.load_tests("rsa_oaep_2048_sha256_mgf1sha256_test.json"))
+        self.tv.extend(self.load_tests("rsa_oaep_2048_sha384_mgf1sha1_test.json"))
+        self.tv.extend(self.load_tests("rsa_oaep_2048_sha384_mgf1sha384_test.json"))
+        self.tv.extend(self.load_tests("rsa_oaep_2048_sha512_mgf1sha1_test.json"))
+        self.tv.extend(self.load_tests("rsa_oaep_2048_sha512_mgf1sha512_test.json"))
+        if not self._skip_slow_tests:
+            self.tv.extend(self.load_tests("rsa_oaep_3072_sha256_mgf1sha1_test.json"))
+            self.tv.extend(self.load_tests("rsa_oaep_3072_sha256_mgf1sha256_test.json"))
+            self.tv.extend(self.load_tests("rsa_oaep_3072_sha512_mgf1sha1_test.json"))
+            self.tv.extend(self.load_tests("rsa_oaep_3072_sha512_mgf1sha512_test.json"))
+            self.tv.extend(self.load_tests("rsa_oaep_4096_sha256_mgf1sha1_test.json"))
+            self.tv.extend(self.load_tests("rsa_oaep_4096_sha256_mgf1sha256_test.json"))
+            self.tv.extend(self.load_tests("rsa_oaep_4096_sha512_mgf1sha1_test.json"))
+            self.tv.extend(self.load_tests("rsa_oaep_4096_sha512_mgf1sha512_test.json"))
+            self.tv.extend(self.load_tests("rsa_oaep_4096_sha512_mgf1sha512_test.json"))
+            self.tv.extend(self.load_tests("rsa_oaep_misc_test.json"))
+
+    def shortDescription(self):
+        return self._id
+
+    def warn(self, tv):
+        if tv.warning and self._wycheproof_warnings:
+            import warnings
+            warnings.warn("Wycheproof warning: %s (%s)" % (self._id, tv.comment))
+
+    def test_decrypt(self, tv):
+        self._id = "Wycheproof Decrypt %s Test #%s" % (tv.algo, tv.id)
+
+        cipher = PKCS.new(tv.rsa_key, hashAlgo=tv.hash_mod, mgfunc=tv.mgf, label=tv.label)
+        try:
+            pt = cipher.decrypt(tv.ct)
+        except ValueError:
+            assert not tv.valid
+        else:
+            assert tv.valid
+            self.assertEqual(pt, tv.msg)
+            self.warn(tv)
+
+    def runTest(self):
+
+        for tv in self.tv:
+            self.test_decrypt(tv)
+
+
+def get_tests(config={}):
+    skip_slow_tests = not config.get('slow_tests')
+    wycheproof_warnings = config.get('wycheproof_warnings')
+
+    tests = []
+    tests += list_test_cases(PKCS1_OAEP_Tests)
+    tests += [TestVectorsWycheproof(wycheproof_warnings, skip_slow_tests)]
+    return tests
+
+
+if __name__ == '__main__':
+    def suite():
+        unittest.TestSuite(get_tests())
+    unittest.main(defaultTest='suite')
+
+# vim:set ts=4 sw=4 sts=4 expandtab: