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1 import hmac |
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2 import sha |
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3 import hashlib |
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4 import unittest |
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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=sha) |
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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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142 '85f0faa3e578f8077a2e3ff46729665b', |
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143 hashlib.sha384: '3e8a69b7783c25851933ab6290af6ca7' |
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144 '7a9981480850009cc5577c6e1f573b4e' |
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145 '6801dd23c4a7d679ccf8a386c674cffb', |
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146 hashlib.sha512: 'b0ba465637458c6990e5a8c5f61d4af7' |
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147 'e576d97ff94b872de76f8050361ee3db' |
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148 'a91ca5c11aa25eb4d679275cc5788063' |
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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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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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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 |
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204 class ConstructorTestCase(unittest.TestCase): |
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205 |
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206 def test_normal(self): |
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207 # Standard constructor call. |
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208 failed = 0 |
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209 try: |
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210 h = hmac.HMAC("key") |
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211 except: |
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212 self.fail("Standard constructor call raised exception.") |
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213 |
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214 def test_withtext(self): |
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215 # Constructor call with text. |
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216 try: |
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217 h = hmac.HMAC("key", "hash this!") |
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218 except: |
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219 self.fail("Constructor call with text argument raised exception.") |
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220 |
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221 def test_withmodule(self): |
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222 # Constructor call with text and digest module. |
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223 import sha |
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224 try: |
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225 h = hmac.HMAC("key", "", sha) |
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226 except: |
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227 self.fail("Constructor call with sha module raised exception.") |
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228 |
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229 class SanityTestCase(unittest.TestCase): |
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230 |
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231 def test_default_is_md5(self): |
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232 # Testing if HMAC defaults to MD5 algorithm. |
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233 # NOTE: this whitebox test depends on the hmac class internals |
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234 import hashlib |
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235 h = hmac.HMAC("key") |
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236 self.failUnless(h.digest_cons == hashlib.md5) |
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237 |
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238 def test_exercise_all_methods(self): |
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239 # Exercising all methods once. |
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240 # This must not raise any exceptions |
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241 try: |
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242 h = hmac.HMAC("my secret key") |
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243 h.update("compute the hash of this text!") |
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244 dig = h.digest() |
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245 dig = h.hexdigest() |
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246 h2 = h.copy() |
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247 except: |
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248 self.fail("Exception raised during normal usage of HMAC class.") |
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249 |
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250 class CopyTestCase(unittest.TestCase): |
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251 |
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252 def test_attributes(self): |
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253 # Testing if attributes are of same type. |
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254 h1 = hmac.HMAC("key") |
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255 h2 = h1.copy() |
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256 self.failUnless(h1.digest_cons == h2.digest_cons, |
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257 "digest constructors don't match.") |
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258 self.failUnless(type(h1.inner) == type(h2.inner), |
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259 "Types of inner don't match.") |
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260 self.failUnless(type(h1.outer) == type(h2.outer), |
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261 "Types of outer don't match.") |
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262 |
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263 def test_realcopy(self): |
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264 # Testing if the copy method created a real copy. |
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265 h1 = hmac.HMAC("key") |
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266 h2 = h1.copy() |
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267 # Using id() in case somebody has overridden __cmp__. |
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268 self.failUnless(id(h1) != id(h2), "No real copy of the HMAC instance.") |
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269 self.failUnless(id(h1.inner) != id(h2.inner), |
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270 "No real copy of the attribute 'inner'.") |
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271 self.failUnless(id(h1.outer) != id(h2.outer), |
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272 "No real copy of the attribute 'outer'.") |
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273 |
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274 def test_equality(self): |
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275 # Testing if the copy has the same digests. |
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276 h1 = hmac.HMAC("key") |
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277 h1.update("some random text") |
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278 h2 = h1.copy() |
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279 self.failUnless(h1.digest() == h2.digest(), |
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280 "Digest of copy doesn't match original digest.") |
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281 self.failUnless(h1.hexdigest() == h2.hexdigest(), |
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282 "Hexdigest of copy doesn't match original hexdigest.") |
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283 |
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284 def test_main(): |
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285 test_support.run_unittest( |
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286 TestVectorsTestCase, |
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287 ConstructorTestCase, |
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288 SanityTestCase, |
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289 CopyTestCase |
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290 ) |
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291 |
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292 if __name__ == "__main__": |
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293 test_main() |