-
Notifications
You must be signed in to change notification settings - Fork 0
/
test.py
324 lines (280 loc) · 11 KB
/
test.py
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
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
# vim: filetype=python3 tabstop=2 expandtab
import unittest
import blowfish
import operator
from os import urandom
class CipherMixin(object):
"""
Test core functionality, i.e. encrypting & decrypting blocks.
"""
byte_order = None
test_vectors = ()
@classmethod
def setUpClass(cls):
"""
Setup the test vectors and cipher objects.
"""
cls.test_vectors = [
(
blowfish.Cipher(bytes.fromhex(key), cls.byte_order),
key, clear_text, cipher_text
)
for key, clear_text, cipher_text in cls.test_vectors
]
def test_encrypt_block(self):
"""
Test encryption of blocks.
"""
for cipher, key, clear_text, cipher_text in self.test_vectors:
with self.subTest(key = key, clear_text = clear_text):
self.assertEqual(
cipher.encrypt_block(bytes.fromhex(clear_text)),
bytes.fromhex(cipher_text)
)
def test_decrypt_block(self):
"""
Test decryption of blocks.
"""
for cipher, key, clear_text, cipher_text in self.test_vectors:
with self.subTest(key = key, cipher_text = cipher_text):
self.assertEqual(
cipher.decrypt_block(bytes.fromhex(cipher_text)),
bytes.fromhex(clear_text)
)
class CipherBigEndian(CipherMixin, unittest.TestCase):
"""
Test core functionality with big-endian byte order input data.
"""
byte_order = "big"
# Big-endian test vectors from <https://www.schneier.com/code/vectors.txt>
test_vectors = (
# key clear text cipher text
("0000000000000000", "0000000000000000", "4EF997456198DD78"),
("FFFFFFFFFFFFFFFF", "FFFFFFFFFFFFFFFF", "51866FD5B85ECB8A"),
("3000000000000000", "1000000000000001", "7D856F9A613063F2"),
("1111111111111111", "1111111111111111", "2466DD878B963C9D"),
("0123456789ABCDEF", "1111111111111111", "61F9C3802281B096"),
("1111111111111111", "0123456789ABCDEF", "7D0CC630AFDA1EC7"),
("0000000000000000", "0000000000000000", "4EF997456198DD78"),
("FEDCBA9876543210", "0123456789ABCDEF", "0ACEAB0FC6A0A28D"),
("7CA110454A1A6E57", "01A1D6D039776742", "59C68245EB05282B"),
("0131D9619DC1376E", "5CD54CA83DEF57DA", "B1B8CC0B250F09A0"),
("07A1133E4A0B2686", "0248D43806F67172", "1730E5778BEA1DA4"),
("3849674C2602319E", "51454B582DDF440A", "A25E7856CF2651EB"),
("04B915BA43FEB5B6", "42FD443059577FA2", "353882B109CE8F1A"),
("0113B970FD34F2CE", "059B5E0851CF143A", "48F4D0884C379918"),
("0170F175468FB5E6", "0756D8E0774761D2", "432193B78951FC98"),
("43297FAD38E373FE", "762514B829BF486A", "13F04154D69D1AE5"),
("07A7137045DA2A16", "3BDD119049372802", "2EEDDA93FFD39C79"),
("04689104C2FD3B2F", "26955F6835AF609A", "D887E0393C2DA6E3"),
("37D06BB516CB7546", "164D5E404F275232", "5F99D04F5B163969"),
("1F08260D1AC2465E", "6B056E18759F5CCA", "4A057A3B24D3977B"),
("584023641ABA6176", "004BD6EF09176062", "452031C1E4FADA8E"),
("025816164629B007", "480D39006EE762F2", "7555AE39F59B87BD"),
("49793EBC79B3258F", "437540C8698F3CFA", "53C55F9CB49FC019"),
("4FB05E1515AB73A7", "072D43A077075292", "7A8E7BFA937E89A3"),
("49E95D6D4CA229BF", "02FE55778117F12A", "CF9C5D7A4986ADB5"),
("018310DC409B26D6", "1D9D5C5018F728C2", "D1ABB290658BC778"),
("1C587F1C13924FEF", "305532286D6F295A", "55CB3774D13EF201"),
("0101010101010101", "0123456789ABCDEF", "FA34EC4847B268B2"),
("1F1F1F1F0E0E0E0E", "0123456789ABCDEF", "A790795108EA3CAE"),
("E0FEE0FEF1FEF1FE", "0123456789ABCDEF", "C39E072D9FAC631D"),
("0000000000000000", "FFFFFFFFFFFFFFFF", "014933E0CDAFF6E4"),
("FFFFFFFFFFFFFFFF", "0000000000000000", "F21E9A77B71C49BC"),
("0123456789ABCDEF", "0000000000000000", "245946885754369A"),
("FEDCBA9876543210", "FFFFFFFFFFFFFFFF", "6B5C5A9C5D9E0A5A"),
)
class CipherLittleEndian(CipherMixin, unittest.TestCase):
"""
Test core functionality with little-endian byte order input data.
"""
byte_order = "little"
# Little-endian test vectors derived from
# <https://www.schneier.com/code/vectors.txt>
# I've simply changed the clear text and cipher text to little-endian byte
# order hex.
test_vectors = (
# key clear text cipher text
("0000000000000000", "0000000000000000", "4597F94E78DD9861"),
("FFFFFFFFFFFFFFFF", "FFFFFFFFFFFFFFFF", "D56F86518ACB5EB8"),
("3000000000000000", "0000001001000000", "9A6F857DF2633061"),
("1111111111111111", "1111111111111111", "87DD66249D3C968B"),
("0123456789ABCDEF", "1111111111111111", "80C3F96196B08122"),
("1111111111111111", "67452301EFCDAB89", "30C60C7DC71EDAAF"),
("0000000000000000", "0000000000000000", "4597F94E78DD9861"),
("FEDCBA9876543210", "67452301EFCDAB89", "0FABCE0A8DA2A0C6"),
("7CA110454A1A6E57", "D0D6A10142677739", "4582C6592B2805EB"),
("0131D9619DC1376E", "A84CD55CDA57EF3D", "0BCCB8B1A0090F25"),
("07A1133E4A0B2686", "38D448027271F606", "77E53017A41DEA8B"),
("3849674C2602319E", "584B45510A44DF2D", "56785EA2EB5126CF"),
("04B915BA43FEB5B6", "3044FD42A27F5759", "B18238351A8FCE09"),
("0113B970FD34F2CE", "085E9B053A14CF51", "88D0F4481899374C"),
("0170F175468FB5E6", "E0D85607D2614777", "B793214398FC5189"),
("43297FAD38E373FE", "B81425766A48BF29", "5441F013E51A9DD6"),
("07A7137045DA2A16", "9011DD3B02283749", "93DAED2E799CD3FF"),
("04689104C2FD3B2F", "685F95269A60AF35", "39E087D8E3A62D3C"),
("37D06BB516CB7546", "405E4D163252274F", "4FD0995F6939165B"),
("1F08260D1AC2465E", "186E056BCA5C9F75", "3B7A054A7B97D324"),
("584023641ABA6176", "EFD64B0062601709", "C13120458EDAFAE4"),
("025816164629B007", "00390D48F262E76E", "39AE5575BD879BF5"),
("49793EBC79B3258F", "C8407543FA3C8F69", "9C5FC55319C09FB4"),
("4FB05E1515AB73A7", "A0432D0792520777", "FA7B8E7AA3897E93"),
("49E95D6D4CA229BF", "7755FE022AF11781", "7A5D9CCFB5AD8649"),
("018310DC409B26D6", "505C9D1DC228F718", "90B2ABD178C78B65"),
("1C587F1C13924FEF", "283255305A296F6D", "7437CB5501F23ED1"),
("0101010101010101", "67452301EFCDAB89", "48EC34FAB268B247"),
("1F1F1F1F0E0E0E0E", "67452301EFCDAB89", "517990A7AE3CEA08"),
("E0FEE0FEF1FEF1FE", "67452301EFCDAB89", "2D079EC31D63AC9F"),
("0000000000000000", "FFFFFFFFFFFFFFFF", "E0334901E4F6AFCD"),
("FFFFFFFFFFFFFFFF", "0000000000000000", "779A1EF2BC491CB7"),
("0123456789ABCDEF", "0000000000000000", "884659249A365457"),
("FEDCBA9876543210", "FFFFFFFFFFFFFFFF", "9C5A5C6B5A0A9E5D"),
)
class ModesOfOperationMixin(object):
"""
Test the modes of operation.
"""
byte_order = None
@classmethod
def setUpClass(cls):
"""
Setup the Cipher object and dummy test data.
"""
cls.cipher = blowfish.Cipher(
b"this ist ein key",
byte_order = cls.byte_order
)
cls.block_multiple_data = urandom(500 * 8)
def test_ecb_mode(self):
"""
Test ECB mode.
"""
cipher = self.cipher
block_multiple_data = self.block_multiple_data
encrypted_data = b"".join(cipher.encrypt_ecb(block_multiple_data))
decrypted_data = b"".join(cipher.decrypt_ecb(encrypted_data))
self.assertEqual(block_multiple_data, decrypted_data)
def test_ecb_cts_mode(self):
"""
Test ECB-CTS mode.
"""
cipher = self.cipher
block_multiple_data = self.block_multiple_data
for i in range(0, 8):
with self.subTest(extra_bytes = i):
data = block_multiple_data + urandom(i)
encrypted_data = b"".join(cipher.encrypt_ecb_cts(data))
decrypted_data = b"".join(cipher.decrypt_ecb_cts(encrypted_data))
self.assertEqual(data, decrypted_data)
def test_cbc_mode(self):
"""
Test CBC mode.
"""
cipher = self.cipher
block_multiple_data = self.block_multiple_data
init_vector = urandom(8)
encrypted_data = b"".join(
cipher.encrypt_cbc(block_multiple_data, init_vector)
)
decrypted_data = b"".join(
cipher.decrypt_cbc(encrypted_data, init_vector)
)
self.assertEqual(block_multiple_data, decrypted_data)
def test_cbc_cts_mode(self):
"""
Test CBC-CTS mode.
"""
cipher = self.cipher
block_multiple_data = self.block_multiple_data
init_vector = urandom(8)
for i in range(0, 8):
with self.subTest(extra_bytes = i):
data = block_multiple_data + urandom(i)
encrypted_data = b"".join(
cipher.encrypt_cbc_cts(data, init_vector)
)
decrypted_data = b"".join(
cipher.decrypt_cbc_cts(encrypted_data, init_vector)
)
self.assertEqual(data, decrypted_data)
def test_pcbc_mode(self):
"""
Test PCBC mode.
"""
cipher = self.cipher
block_multiple_data = self.block_multiple_data
init_vector = urandom(8)
encrypted_data = b"".join(
cipher.encrypt_pcbc(block_multiple_data, init_vector)
)
decrypted_data = b"".join(
cipher.decrypt_pcbc(encrypted_data, init_vector)
)
self.assertEqual(block_multiple_data, decrypted_data)
def test_cfb_mode(self):
"""
Test CFB mode.
"""
cipher = self.cipher
block_multiple_data = self.block_multiple_data
init_vector = urandom(8)
for i in range(0, 8):
with self.subTest(extra_bytes = i):
data = block_multiple_data + urandom(i)
encrypted_data = b"".join(
cipher.encrypt_cfb(data, init_vector)
)
decrypted_data = b"".join(
cipher.decrypt_cfb(encrypted_data, init_vector)
)
self.assertEqual(data, decrypted_data)
def test_ofb_mode(self):
"""
Test OFB mode.
"""
cipher = self.cipher
block_multiple_data = self.block_multiple_data
init_vector = urandom(8)
for i in range(0, 8):
with self.subTest(extra_bytes = i):
data = block_multiple_data + urandom(i)
encrypted_data = b"".join(
cipher.encrypt_ofb(data, init_vector)
)
decrypted_data = b"".join(
cipher.decrypt_ofb(encrypted_data, init_vector)
)
self.assertEqual(data, decrypted_data)
def test_ctr_mode(self):
"""
Test CTR mode.
"""
cipher = self.cipher
block_multiple_data = self.block_multiple_data
nonce = int.from_bytes(urandom(8), "big")
for i in range(0, 8):
with self.subTest(extra_bytes = i):
data = block_multiple_data + urandom(i)
encrypted_data = b"".join(
cipher.encrypt_ctr(
data,
blowfish.ctr_counter(nonce, operator.xor)
)
)
decrypted_data = b"".join(
cipher.decrypt_ctr(
encrypted_data,
blowfish.ctr_counter(nonce, operator.xor)
)
)
self.assertEqual(data, decrypted_data)
class ModesOfOperationBigEndian(ModesOfOperationMixin, unittest.TestCase):
"""
Test the modes of operation using big-endian byte order input.
"""
byte_order = "big"
class ModesOfOperationLittleEndian(ModesOfOperationMixin, unittest.TestCase):
"""
Test the modes of operation using little-endian byte order input.
"""
byte_order = "little"