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
|
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Test using the NIST Test Vectors
"""
import binascii
import os
import pytest
from cryptography.primitives.block import BlockCipher, ciphers, modes
from ..utils import load_nist_vectors_from_file
def parameterize_kat_encrypt(fname):
return pytest.mark.parametrize(("key", "iv", "plaintext", "ciphertext"),
load_nist_vectors_from_file(
os.path.join("AES/KAT/", fname),
"ENCRYPT",
["key", "iv", "plaintext", "ciphertext"],
),
)
def paramterize_mmt_encrypt(fname):
return pytest.mark.parametrize(("key", "iv", "plaintext", "ciphertext"),
load_nist_vectors_from_file(
os.path.join("AES/MMT/", fname),
"ENCRYPT",
["key", "iv", "plaintext", "ciphertext"],
)
)
class TestAES_CBC(object):
@parameterize_kat_encrypt("CBCGFSbox128.rsp")
def test_KAT_GFSbox_128_encrypt(self, key, iv, plaintext, ciphertext):
cipher = BlockCipher(
ciphers.AES(binascii.unhexlify(key)),
modes.CBC(binascii.unhexlify(iv)),
)
actual_ciphertext = cipher.encrypt(binascii.unhexlify(plaintext))
actual_ciphertext += cipher.finalize()
assert binascii.hexlify(actual_ciphertext) == ciphertext
@parameterize_kat_encrypt("CBCGFSbox192.rsp")
def test_KAT_GFSbox_192_encrypt(self, key, iv, plaintext, ciphertext):
cipher = BlockCipher(
ciphers.AES(binascii.unhexlify(key)),
modes.CBC(binascii.unhexlify(iv)),
)
actual_ciphertext = cipher.encrypt(binascii.unhexlify(plaintext))
actual_ciphertext += cipher.finalize()
assert binascii.hexlify(actual_ciphertext) == ciphertext
@parameterize_kat_encrypt("CBCGFSbox256.rsp")
def test_KAT_GFSbox_256_encrypt(self, key, iv, plaintext, ciphertext):
cipher = BlockCipher(
ciphers.AES(binascii.unhexlify(key)),
modes.CBC(binascii.unhexlify(iv)),
)
actual_ciphertext = cipher.encrypt(binascii.unhexlify(plaintext))
actual_ciphertext += cipher.finalize()
assert binascii.hexlify(actual_ciphertext) == ciphertext
@parameterize_kat_encrypt("CBCKeySbox128.rsp")
def test_KAT_KeySbox_128_encrypt(self, key, iv, plaintext, ciphertext):
cipher = BlockCipher(
ciphers.AES(binascii.unhexlify(key)),
modes.CBC(binascii.unhexlify(iv)),
)
actual_ciphertext = cipher.encrypt(binascii.unhexlify(plaintext))
actual_ciphertext += cipher.finalize()
assert binascii.hexlify(actual_ciphertext) == ciphertext
@parameterize_kat_encrypt("CBCKeySbox192.rsp")
def test_KAT_KeySbox_192_encrypt(self, key, iv, plaintext, ciphertext):
cipher = BlockCipher(
ciphers.AES(binascii.unhexlify(key)),
modes.CBC(binascii.unhexlify(iv)),
)
actual_ciphertext = cipher.encrypt(binascii.unhexlify(plaintext))
actual_ciphertext += cipher.finalize()
assert binascii.hexlify(actual_ciphertext) == ciphertext
@parameterize_kat_encrypt("CBCKeySbox256.rsp")
def test_KAT_KeySbox_256_encrypt(self, key, iv, plaintext, ciphertext):
cipher = BlockCipher(
ciphers.AES(binascii.unhexlify(key)),
modes.CBC(binascii.unhexlify(iv)),
)
actual_ciphertext = cipher.encrypt(binascii.unhexlify(plaintext))
actual_ciphertext += cipher.finalize()
assert binascii.hexlify(actual_ciphertext) == ciphertext
@parameterize_kat_encrypt("CBCVarKey128.rsp")
def test_KAT_VarKey_128_encrypt(self, key, iv, plaintext, ciphertext):
cipher = BlockCipher(
ciphers.AES(binascii.unhexlify(key)),
modes.CBC(binascii.unhexlify(iv)),
)
actual_ciphertext = cipher.encrypt(binascii.unhexlify(plaintext))
actual_ciphertext += cipher.finalize()
assert binascii.hexlify(actual_ciphertext) == ciphertext
@parameterize_kat_encrypt("CBCVarKey192.rsp")
def test_KAT_VarKey_192_encrypt(self, key, iv, plaintext, ciphertext):
cipher = BlockCipher(
ciphers.AES(binascii.unhexlify(key)),
modes.CBC(binascii.unhexlify(iv)),
)
actual_ciphertext = cipher.encrypt(binascii.unhexlify(plaintext))
actual_ciphertext += cipher.finalize()
assert binascii.hexlify(actual_ciphertext) == ciphertext
@parameterize_kat_encrypt("CBCVarKey256.rsp")
def test_KAT_VarKey_256_encrypt(self, key, iv, plaintext, ciphertext):
cipher = BlockCipher(
ciphers.AES(binascii.unhexlify(key)),
modes.CBC(binascii.unhexlify(iv)),
)
actual_ciphertext = cipher.encrypt(binascii.unhexlify(plaintext))
actual_ciphertext += cipher.finalize()
assert binascii.hexlify(actual_ciphertext) == ciphertext
@parameterize_kat_encrypt("CBCVarTxt128.rsp")
def test_KAT_VarTxt_128_encrypt(self, key, iv, plaintext, ciphertext):
cipher = BlockCipher(
ciphers.AES(binascii.unhexlify(key)),
modes.CBC(binascii.unhexlify(iv)),
)
actual_ciphertext = cipher.encrypt(binascii.unhexlify(plaintext))
actual_ciphertext += cipher.finalize()
assert binascii.hexlify(actual_ciphertext) == ciphertext
@parameterize_kat_encrypt("CBCVarTxt192.rsp")
def test_KAT_VarTxt_192_encrypt(self, key, iv, plaintext, ciphertext):
cipher = BlockCipher(
ciphers.AES(binascii.unhexlify(key)),
modes.CBC(binascii.unhexlify(iv)),
)
actual_ciphertext = cipher.encrypt(binascii.unhexlify(plaintext))
actual_ciphertext += cipher.finalize()
assert binascii.hexlify(actual_ciphertext) == ciphertext
@parameterize_kat_encrypt("CBCVarTxt256.rsp")
def test_KAT_VarTxt_256_encrypt(self, key, iv, plaintext, ciphertext):
cipher = BlockCipher(
ciphers.AES(binascii.unhexlify(key)),
modes.CBC(binascii.unhexlify(iv)),
)
actual_ciphertext = cipher.encrypt(binascii.unhexlify(plaintext))
actual_ciphertext += cipher.finalize()
assert binascii.hexlify(actual_ciphertext) == ciphertext
@paramterize_mmt_encrypt("CBCMMT128.rsp")
def test_MMT_128_encrypt(self, key, iv, plaintext, ciphertext):
cipher = BlockCipher(
ciphers.AES(binascii.unhexlify(key)),
modes.CBC(binascii.unhexlify(iv)),
)
actual_ciphertext = cipher.encrypt(binascii.unhexlify(plaintext))
actual_ciphertext += cipher.finalize()
assert binascii.hexlify(actual_ciphertext) == ciphertext
@paramterize_mmt_encrypt("CBCMMT192.rsp")
def test_MMT_192_encrypt(self, key, iv, plaintext, ciphertext):
cipher = BlockCipher(
ciphers.AES(binascii.unhexlify(key)),
modes.CBC(binascii.unhexlify(iv)),
)
actual_ciphertext = cipher.encrypt(binascii.unhexlify(plaintext))
actual_ciphertext += cipher.finalize()
assert binascii.hexlify(actual_ciphertext) == ciphertext
@paramterize_mmt_encrypt("CBCMMT256.rsp")
def test_MMT_256_encrypt(self, key, iv, plaintext, ciphertext):
cipher = BlockCipher(
ciphers.AES(binascii.unhexlify(key)),
modes.CBC(binascii.unhexlify(iv)),
)
actual_ciphertext = cipher.encrypt(binascii.unhexlify(plaintext))
actual_ciphertext += cipher.finalize()
assert binascii.hexlify(actual_ciphertext) == ciphertext
|
