Spaces:
Running
Running
File size: 8,477 Bytes
ba2f5d6 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 |
# ===================================================================
#
# Copyright (c) 2015, Legrandin <[email protected]>
# 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')
|