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annotate Lib/test/test_hmac.py @ 79675:c0a2294de787 2.7

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Issue #16199: Backport 2to3 typo fix from 3.2.
author Chris Jerdonek <chris.jerdonek@gmail.com>
date Thu, 11 Oct 2012 16:15:46 -0700
parents b36cb4602e21
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
19863
676298c0c762 Test for new hmac module.
Guido van Rossum <guido@python.org>
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1 import hmac
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2 import hashlib
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3 import unittest
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4 import warnings
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5 from test import test_support
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6
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7 class TestVectorsTestCase(unittest.TestCase):
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8
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9 def test_md5_vectors(self):
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10 # Test the HMAC module against test vectors from the RFC.
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11
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12 def md5test(key, data, digest):
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13 h = hmac.HMAC(key, data)
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14 self.assertEqual(h.hexdigest().upper(), digest.upper())
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15
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16 md5test(chr(0x0b) * 16,
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17 "Hi There",
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18 "9294727A3638BB1C13F48EF8158BFC9D")
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19
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20 md5test("Jefe",
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21 "what do ya want for nothing?",
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22 "750c783e6ab0b503eaa86e310a5db738")
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23
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24 md5test(chr(0xAA)*16,
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25 chr(0xDD)*50,
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26 "56be34521d144c88dbb8c733f0e8b3f6")
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27
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28 md5test("".join([chr(i) for i in range(1, 26)]),
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29 chr(0xCD) * 50,
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30 "697eaf0aca3a3aea3a75164746ffaa79")
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31
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32 md5test(chr(0x0C) * 16,
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33 "Test With Truncation",
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34 "56461ef2342edc00f9bab995690efd4c")
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35
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36 md5test(chr(0xAA) * 80,
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37 "Test Using Larger Than Block-Size Key - Hash Key First",
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38 "6b1ab7fe4bd7bf8f0b62e6ce61b9d0cd")
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39
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40 md5test(chr(0xAA) * 80,
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41 ("Test Using Larger Than Block-Size Key "
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42 "and Larger Than One Block-Size Data"),
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43 "6f630fad67cda0ee1fb1f562db3aa53e")
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44
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45 def test_sha_vectors(self):
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46 def shatest(key, data, digest):
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47 h = hmac.HMAC(key, data, digestmod=hashlib.sha1)
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48 self.assertEqual(h.hexdigest().upper(), digest.upper())
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49
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50 shatest(chr(0x0b) * 20,
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51 "Hi There",
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52 "b617318655057264e28bc0b6fb378c8ef146be00")
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53
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54 shatest("Jefe",
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55 "what do ya want for nothing?",
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56 "effcdf6ae5eb2fa2d27416d5f184df9c259a7c79")
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57
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58 shatest(chr(0xAA)*20,
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59 chr(0xDD)*50,
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60 "125d7342b9ac11cd91a39af48aa17b4f63f175d3")
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61
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62 shatest("".join([chr(i) for i in range(1, 26)]),
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63 chr(0xCD) * 50,
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64 "4c9007f4026250c6bc8414f9bf50c86c2d7235da")
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65
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66 shatest(chr(0x0C) * 20,
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67 "Test With Truncation",
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68 "4c1a03424b55e07fe7f27be1d58bb9324a9a5a04")
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69
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70 shatest(chr(0xAA) * 80,
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71 "Test Using Larger Than Block-Size Key - Hash Key First",
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72 "aa4ae5e15272d00e95705637ce8a3b55ed402112")
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73
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74 shatest(chr(0xAA) * 80,
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75 ("Test Using Larger Than Block-Size Key "
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76 "and Larger Than One Block-Size Data"),
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77 "e8e99d0f45237d786d6bbaa7965c7808bbff1a91")
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78
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79 def _rfc4231_test_cases(self, hashfunc):
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80 def hmactest(key, data, hexdigests):
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81 h = hmac.HMAC(key, data, digestmod=hashfunc)
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82 self.assertEqual(h.hexdigest().lower(), hexdigests[hashfunc])
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83
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84 # 4.2. Test Case 1
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85 hmactest(key = '\x0b'*20,
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86 data = 'Hi There',
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87 hexdigests = {
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88 hashlib.sha224: '896fb1128abbdf196832107cd49df33f'
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89 '47b4b1169912ba4f53684b22',
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90 hashlib.sha256: 'b0344c61d8db38535ca8afceaf0bf12b'
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91 '881dc200c9833da726e9376c2e32cff7',
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92 hashlib.sha384: 'afd03944d84895626b0825f4ab46907f'
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93 '15f9dadbe4101ec682aa034c7cebc59c'
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94 'faea9ea9076ede7f4af152e8b2fa9cb6',
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95 hashlib.sha512: '87aa7cdea5ef619d4ff0b4241a1d6cb0'
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96 '2379f4e2ce4ec2787ad0b30545e17cde'
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97 'daa833b7d6b8a702038b274eaea3f4e4'
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98 'be9d914eeb61f1702e696c203a126854',
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99 })
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100
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101 # 4.3. Test Case 2
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102 hmactest(key = 'Jefe',
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103 data = 'what do ya want for nothing?',
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104 hexdigests = {
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105 hashlib.sha224: 'a30e01098bc6dbbf45690f3a7e9e6d0f'
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106 '8bbea2a39e6148008fd05e44',
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107 hashlib.sha256: '5bdcc146bf60754e6a042426089575c7'
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108 '5a003f089d2739839dec58b964ec3843',
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109 hashlib.sha384: 'af45d2e376484031617f78d2b58a6b1b'
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110 '9c7ef464f5a01b47e42ec3736322445e'
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111 '8e2240ca5e69e2c78b3239ecfab21649',
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112 hashlib.sha512: '164b7a7bfcf819e2e395fbe73b56e0a3'
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113 '87bd64222e831fd610270cd7ea250554'
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114 '9758bf75c05a994a6d034f65f8f0e6fd'
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115 'caeab1a34d4a6b4b636e070a38bce737',
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116 })
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117
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118 # 4.4. Test Case 3
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119 hmactest(key = '\xaa'*20,
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120 data = '\xdd'*50,
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121 hexdigests = {
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122 hashlib.sha224: '7fb3cb3588c6c1f6ffa9694d7d6ad264'
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123 '9365b0c1f65d69d1ec8333ea',
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124 hashlib.sha256: '773ea91e36800e46854db8ebd09181a7'
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125 '2959098b3ef8c122d9635514ced565fe',
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126 hashlib.sha384: '88062608d3e6ad8a0aa2ace014c8a86f'
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127 '0aa635d947ac9febe83ef4e55966144b'
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128 '2a5ab39dc13814b94e3ab6e101a34f27',
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129 hashlib.sha512: 'fa73b0089d56a284efb0f0756c890be9'
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130 'b1b5dbdd8ee81a3655f83e33b2279d39'
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131 'bf3e848279a722c806b485a47e67c807'
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132 'b946a337bee8942674278859e13292fb',
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133 })
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134
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135 # 4.5. Test Case 4
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136 hmactest(key = ''.join([chr(x) for x in xrange(0x01, 0x19+1)]),
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137 data = '\xcd'*50,
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138 hexdigests = {
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139 hashlib.sha224: '6c11506874013cac6a2abc1bb382627c'
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140 'ec6a90d86efc012de7afec5a',
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141 hashlib.sha256: '82558a389a443c0ea4cc819899f2083a'
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diff changeset
142 '85f0faa3e578f8077a2e3ff46729665b',
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143 hashlib.sha384: '3e8a69b7783c25851933ab6290af6ca7'
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diff changeset
144 '7a9981480850009cc5577c6e1f573b4e'
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diff changeset
145 '6801dd23c4a7d679ccf8a386c674cffb',
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146 hashlib.sha512: 'b0ba465637458c6990e5a8c5f61d4af7'
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diff changeset
147 'e576d97ff94b872de76f8050361ee3db'
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diff changeset
148 'a91ca5c11aa25eb4d679275cc5788063'
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diff changeset
149 'a5f19741120c4f2de2adebeb10a298dd',
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150 })
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151
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152 # 4.7. Test Case 6
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153 hmactest(key = '\xaa'*131,
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154 data = 'Test Using Larger Than Block-Siz'
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155 'e Key - Hash Key First',
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156 hexdigests = {
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157 hashlib.sha224: '95e9a0db962095adaebe9b2d6f0dbce2'
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158 'd499f112f2d2b7273fa6870e',
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159 hashlib.sha256: '60e431591ee0b67f0d8a26aacbf5b77f'
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160 '8e0bc6213728c5140546040f0ee37f54',
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161 hashlib.sha384: '4ece084485813e9088d2c63a041bc5b4'
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diff changeset
162 '4f9ef1012a2b588f3cd11f05033ac4c6'
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163 '0c2ef6ab4030fe8296248df163f44952',
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164 hashlib.sha512: '80b24263c7c1a3ebb71493c1dd7be8b4'
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165 '9b46d1f41b4aeec1121b013783f8f352'
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166 '6b56d037e05f2598bd0fd2215d6a1e52'
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diff changeset
167 '95e64f73f63f0aec8b915a985d786598',
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168 })
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169
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170 # 4.8. Test Case 7
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171 hmactest(key = '\xaa'*131,
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172 data = 'This is a test using a larger th'
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173 'an block-size key and a larger t'
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174 'han block-size data. The key nee'
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175 'ds to be hashed before being use'
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176 'd by the HMAC algorithm.',
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177 hexdigests = {
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178 hashlib.sha224: '3a854166ac5d9f023f54d517d0b39dbd'
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179 '946770db9c2b95c9f6f565d1',
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180 hashlib.sha256: '9b09ffa71b942fcb27635fbcd5b0e944'
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181 'bfdc63644f0713938a7f51535c3a35e2',
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182 hashlib.sha384: '6617178e941f020d351e2f254e8fd32c'
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183 '602420feb0b8fb9adccebb82461e99c5'
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184 'a678cc31e799176d3860e6110c46523e',
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185 hashlib.sha512: 'e37b6a775dc87dbaa4dfa9f96e5e3ffd'
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186 'debd71f8867289865df5a32d20cdc944'
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187 'b6022cac3c4982b10d5eeb55c3e4de15'
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188 '134676fb6de0446065c97440fa8c6a58',
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189 })
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190
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191 def test_sha224_rfc4231(self):
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192 self._rfc4231_test_cases(hashlib.sha224)
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193
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194 def test_sha256_rfc4231(self):
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195 self._rfc4231_test_cases(hashlib.sha256)
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196
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197 def test_sha384_rfc4231(self):
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198 self._rfc4231_test_cases(hashlib.sha384)
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199
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200 def test_sha512_rfc4231(self):
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201 self._rfc4231_test_cases(hashlib.sha512)
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202
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203 def test_legacy_block_size_warnings(self):
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204 class MockCrazyHash(object):
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205 """Ain't no block_size attribute here."""
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206 def __init__(self, *args):
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207 self._x = hashlib.sha1(*args)
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208 self.digest_size = self._x.digest_size
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209 def update(self, v):
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210 self._x.update(v)
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211 def digest(self):
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212 return self._x.digest()
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213
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214 with warnings.catch_warnings():
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215 warnings.simplefilter('error', RuntimeWarning)
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Florent Xicluna <florent.xicluna@gmail.com>
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216 with self.assertRaises(RuntimeWarning):
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217 hmac.HMAC('a', 'b', digestmod=MockCrazyHash)
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218 self.fail('Expected warning about missing block_size')
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219
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220 MockCrazyHash.block_size = 1
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221 with self.assertRaises(RuntimeWarning):
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222 hmac.HMAC('a', 'b', digestmod=MockCrazyHash)
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223 self.fail('Expected warning about small block_size')
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224
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225
29278
cfba76f77643 Add more tests from RFC 2202.
Jeremy Hylton <jeremy@alum.mit.edu>
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226
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227 class ConstructorTestCase(unittest.TestCase):
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228
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229 def test_normal(self):
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230 # Standard constructor call.
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231 failed = 0
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232 try:
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233 h = hmac.HMAC("key")
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diff changeset
234 except:
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235 self.fail("Standard constructor call raised exception.")
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236
d9a9d92624db [Patch #477336] Add an extensive PyUnit based testsuite for the hmac
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237 def test_withtext(self):
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238 # Constructor call with text.
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diff changeset
239 try:
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diff changeset
240 h = hmac.HMAC("key", "hash this!")
d9a9d92624db [Patch #477336] Add an extensive PyUnit based testsuite for the hmac
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diff changeset
241 except:
d9a9d92624db [Patch #477336] Add an extensive PyUnit based testsuite for the hmac
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diff changeset
242 self.fail("Constructor call with text argument raised exception.")
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diff changeset
243
d9a9d92624db [Patch #477336] Add an extensive PyUnit based testsuite for the hmac
Andrew M. Kuchling <amk@amk.ca>
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diff changeset
244 def test_withmodule(self):
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245 # Constructor call with text and digest module.
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diff changeset
246 try:
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diff changeset
247 h = hmac.HMAC("key", "", hashlib.sha1)
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diff changeset
248 except:
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9d02a4adf574 Merged revisions 55631-55794 via svnmerge from
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diff changeset
249 self.fail("Constructor call with hashlib.sha1 raised exception.")
20967
bb8716095a81 Whitespace normalization.
Tim Peters <tim.peters@gmail.com>
parents: 20848
diff changeset
250
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251 class SanityTestCase(unittest.TestCase):
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252
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253 def test_default_is_md5(self):
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254 # Testing if HMAC defaults to MD5 algorithm.
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255 # NOTE: this whitebox test depends on the hmac class internals
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256 h = hmac.HMAC("key")
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257 self.assertTrue(h.digest_cons == hashlib.md5)
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258
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259 def test_exercise_all_methods(self):
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260 # Exercising all methods once.
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261 # This must not raise any exceptions
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262 try:
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263 h = hmac.HMAC("my secret key")
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264 h.update("compute the hash of this text!")
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265 dig = h.digest()
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266 dig = h.hexdigest()
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267 h2 = h.copy()
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268 except:
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269 self.fail("Exception raised during normal usage of HMAC class.")
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270
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271 class CopyTestCase(unittest.TestCase):
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272
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273 def test_attributes(self):
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274 # Testing if attributes are of same type.
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275 h1 = hmac.HMAC("key")
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276 h2 = h1.copy()
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277 self.assertTrue(h1.digest_cons == h2.digest_cons,
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278 "digest constructors don't match.")
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279 self.assertTrue(type(h1.inner) == type(h2.inner),
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280 "Types of inner don't match.")
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281 self.assertTrue(type(h1.outer) == type(h2.outer),
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282 "Types of outer don't match.")
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283
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284 def test_realcopy(self):
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285 # Testing if the copy method created a real copy.
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286 h1 = hmac.HMAC("key")
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287 h2 = h1.copy()
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288 # Using id() in case somebody has overridden __cmp__.
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289 self.assertTrue(id(h1) != id(h2), "No real copy of the HMAC instance.")
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290 self.assertTrue(id(h1.inner) != id(h2.inner),
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291 "No real copy of the attribute 'inner'.")
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292 self.assertTrue(id(h1.outer) != id(h2.outer),
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293 "No real copy of the attribute 'outer'.")
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294
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295 def test_equality(self):
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296 # Testing if the copy has the same digests.
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297 h1 = hmac.HMAC("key")
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298 h1.update("some random text")
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299 h2 = h1.copy()
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300 self.assertTrue(h1.digest() == h2.digest(),
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301 "Digest of copy doesn't match original digest.")
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302 self.assertTrue(h1.hexdigest() == h2.hexdigest(),
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303 "Hexdigest of copy doesn't match original hexdigest.")
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304
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305 def test_main():
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306 test_support.run_unittest(
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307 TestVectorsTestCase,
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308 ConstructorTestCase,
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309 SanityTestCase,
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310 CopyTestCase
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311 )
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312
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313 if __name__ == "__main__":
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314 test_main()