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
|
import hmac
from hashlib import sha1
import unittest
from test import test_support
class TestVectorsTestCase(unittest.TestCase):
def test_md5_vectors(self):
# Test the HMAC module against test vectors from the RFC.
def md5test(key, data, digest):
h = hmac.HMAC(key, data)
self.assertEqual(h.hexdigest().upper(), digest.upper())
md5test(chr(0x0b) * 16,
"Hi There",
"9294727A3638BB1C13F48EF8158BFC9D")
md5test("Jefe",
"what do ya want for nothing?",
"750c783e6ab0b503eaa86e310a5db738")
md5test(chr(0xAA)*16,
chr(0xDD)*50,
"56be34521d144c88dbb8c733f0e8b3f6")
md5test("".join([chr(i) for i in range(1, 26)]),
chr(0xCD) * 50,
"697eaf0aca3a3aea3a75164746ffaa79")
md5test(chr(0x0C) * 16,
"Test With Truncation",
"56461ef2342edc00f9bab995690efd4c")
md5test(chr(0xAA) * 80,
"Test Using Larger Than Block-Size Key - Hash Key First",
"6b1ab7fe4bd7bf8f0b62e6ce61b9d0cd")
md5test(chr(0xAA) * 80,
("Test Using Larger Than Block-Size Key "
"and Larger Than One Block-Size Data"),
"6f630fad67cda0ee1fb1f562db3aa53e")
def test_sha_vectors(self):
def shatest(key, data, digest):
h = hmac.HMAC(key, data, digestmod=sha1)
self.assertEqual(h.hexdigest().upper(), digest.upper())
shatest(chr(0x0b) * 20,
"Hi There",
"b617318655057264e28bc0b6fb378c8ef146be00")
shatest("Jefe",
"what do ya want for nothing?",
"effcdf6ae5eb2fa2d27416d5f184df9c259a7c79")
shatest(chr(0xAA)*20,
chr(0xDD)*50,
"125d7342b9ac11cd91a39af48aa17b4f63f175d3")
shatest("".join([chr(i) for i in range(1, 26)]),
chr(0xCD) * 50,
"4c9007f4026250c6bc8414f9bf50c86c2d7235da")
shatest(chr(0x0C) * 20,
"Test With Truncation",
"4c1a03424b55e07fe7f27be1d58bb9324a9a5a04")
shatest(chr(0xAA) * 80,
"Test Using Larger Than Block-Size Key - Hash Key First",
"aa4ae5e15272d00e95705637ce8a3b55ed402112")
shatest(chr(0xAA) * 80,
("Test Using Larger Than Block-Size Key "
"and Larger Than One Block-Size Data"),
"e8e99d0f45237d786d6bbaa7965c7808bbff1a91")
class ConstructorTestCase(unittest.TestCase):
def test_normal(self):
# Standard constructor call.
failed = 0
try:
h = hmac.HMAC("key")
except:
self.fail("Standard constructor call raised exception.")
def test_withtext(self):
# Constructor call with text.
try:
h = hmac.HMAC("key", "hash this!")
except:
self.fail("Constructor call with text argument raised exception.")
def test_withmodule(self):
# Constructor call with text and digest module.
from hashlib import sha1
try:
h = hmac.HMAC("key", "", sha1)
except:
self.fail("Constructor call with hashlib.sha1 raised exception.")
class SanityTestCase(unittest.TestCase):
def test_default_is_md5(self):
# Testing if HMAC defaults to MD5 algorithm.
# NOTE: this whitebox test depends on the hmac class internals
import hashlib
h = hmac.HMAC("key")
self.failUnless(h.digest_cons == hashlib.md5)
def test_exercise_all_methods(self):
# Exercising all methods once.
# This must not raise any exceptions
try:
h = hmac.HMAC("my secret key")
h.update("compute the hash of this text!")
dig = h.digest()
dig = h.hexdigest()
h2 = h.copy()
except:
self.fail("Exception raised during normal usage of HMAC class.")
class CopyTestCase(unittest.TestCase):
def test_attributes(self):
# Testing if attributes are of same type.
h1 = hmac.HMAC("key")
h2 = h1.copy()
self.failUnless(h1.digest_cons == h2.digest_cons,
"digest constructors don't match.")
self.failUnless(type(h1.inner) == type(h2.inner),
"Types of inner don't match.")
self.failUnless(type(h1.outer) == type(h2.outer),
"Types of outer don't match.")
def test_realcopy(self):
# Testing if the copy method created a real copy.
h1 = hmac.HMAC("key")
h2 = h1.copy()
# Using id() in case somebody has overridden __cmp__.
self.failUnless(id(h1) != id(h2), "No real copy of the HMAC instance.")
self.failUnless(id(h1.inner) != id(h2.inner),
"No real copy of the attribute 'inner'.")
self.failUnless(id(h1.outer) != id(h2.outer),
"No real copy of the attribute 'outer'.")
def test_equality(self):
# Testing if the copy has the same digests.
h1 = hmac.HMAC("key")
h1.update("some random text")
h2 = h1.copy()
self.failUnless(h1.digest() == h2.digest(),
"Digest of copy doesn't match original digest.")
self.failUnless(h1.hexdigest() == h2.hexdigest(),
"Hexdigest of copy doesn't match original hexdigest.")
def test_main():
test_support.run_unittest(
TestVectorsTestCase,
ConstructorTestCase,
SanityTestCase,
CopyTestCase
)
if __name__ == "__main__":
test_main()
|
