summaryrefslogtreecommitdiff
path: root/Lib/test/test_hashlib.py
blob: 399e50b16232df79d6c263b9fb0f948df020af2c (plain)
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
# Test hashlib module
#
# $Id$
#
#  Copyright (C) 2005   Gregory P. Smith (greg@krypto.org)
#  Licensed to PSF under a Contributor Agreement.
#

import hashlib
import unittest
from test import test_support


def hexstr(s):
    assert isinstance(s, bytes), repr(s)
    h = "0123456789abcdef"
    r = ''
    for i in s:
        r += h[(i >> 4) & 0xF] + h[i & 0xF]
    return r


class HashLibTestCase(unittest.TestCase):
    supported_hash_names = ( 'md5', 'MD5', 'sha1', 'SHA1',
                             'sha224', 'SHA224', 'sha256', 'SHA256',
                             'sha384', 'SHA384', 'sha512', 'SHA512' )

    def test_unknown_hash(self):
        try:
            hashlib.new('spam spam spam spam spam')
        except ValueError:
            pass
        else:
            self.assert_(0 == "hashlib didn't reject bogus hash name")

    def test_hexdigest(self):
        for name in self.supported_hash_names:
            h = hashlib.new(name)
            assert isinstance(h.digest(), bytes), name
            self.assertEqual(hexstr(h.digest()), h.hexdigest())


    def test_large_update(self):
        aas = b'a' * 128
        bees = b'b' * 127
        cees = b'c' * 126

        for name in self.supported_hash_names:
            m1 = hashlib.new(name)
            m1.update(aas)
            m1.update(bees)
            m1.update(cees)

            m2 = hashlib.new(name)
            m2.update(aas + bees + cees)
            self.assertEqual(m1.digest(), m2.digest())


    def check(self, name, data, digest):
        # test the direct constructors
        computed = getattr(hashlib, name)(data).hexdigest()
        self.assertEqual(computed, digest)
        # test the general new() interface
        computed = hashlib.new(name, data).hexdigest()
        self.assertEqual(computed, digest)


    def test_case_md5_0(self):
        self.check('md5', b'', 'd41d8cd98f00b204e9800998ecf8427e')

    def test_case_md5_1(self):
        self.check('md5', b'abc', '900150983cd24fb0d6963f7d28e17f72')

    def test_case_md5_2(self):
        self.check('md5',
                   b'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789',
                   'd174ab98d277d9f5a5611c2c9f419d9f')


    # use the three examples from Federal Information Processing Standards
    # Publication 180-1, Secure Hash Standard,  1995 April 17
    # http://www.itl.nist.gov/div897/pubs/fip180-1.htm

    def test_case_sha1_0(self):
        self.check('sha1', b"",
                   "da39a3ee5e6b4b0d3255bfef95601890afd80709")

    def test_case_sha1_1(self):
        self.check('sha1', b"abc",
                   "a9993e364706816aba3e25717850c26c9cd0d89d")

    def test_case_sha1_2(self):
        self.check('sha1',
                   b"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
                   "84983e441c3bd26ebaae4aa1f95129e5e54670f1")

    def test_case_sha1_3(self):
        self.check('sha1', b"a" * 1000000,
                   "34aa973cd4c4daa4f61eeb2bdbad27316534016f")


    # use the examples from Federal Information Processing Standards
    # Publication 180-2, Secure Hash Standard,  2002 August 1
    # http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf

    def test_case_sha224_0(self):
        self.check('sha224', b"",
          "d14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f")

    def test_case_sha224_1(self):
        self.check('sha224', b"abc",
          "23097d223405d8228642a477bda255b32aadbce4bda0b3f7e36c9da7")

    def test_case_sha224_2(self):
        self.check('sha224',
          b"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
          "75388b16512776cc5dba5da1fd890150b0c6455cb4f58b1952522525")

    def test_case_sha224_3(self):
        self.check('sha224', b"a" * 1000000,
          "20794655980c91d8bbb4c1ea97618a4bf03f42581948b2ee4ee7ad67")


    def test_case_sha256_0(self):
        self.check('sha256', b"",
          "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855")

    def test_case_sha256_1(self):
        self.check('sha256', b"abc",
          "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad")

    def test_case_sha256_2(self):
        self.check('sha256',
          b"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
          "248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1")

    def test_case_sha256_3(self):
        self.check('sha256', b"a" * 1000000,
          "cdc76e5c9914fb9281a1c7e284d73e67f1809a48a497200e046d39ccc7112cd0")


    def test_case_sha384_0(self):
        self.check('sha384', b"",
          "38b060a751ac96384cd9327eb1b1e36a21fdb71114be07434c0cc7bf63f6e1da"+
          "274edebfe76f65fbd51ad2f14898b95b")

    def test_case_sha384_1(self):
        self.check('sha384', b"abc",
          "cb00753f45a35e8bb5a03d699ac65007272c32ab0eded1631a8b605a43ff5bed"+
          "8086072ba1e7cc2358baeca134c825a7")

    def test_case_sha384_2(self):
        self.check('sha384',
                   b"abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"+
                   b"hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
          "09330c33f71147e83d192fc782cd1b4753111b173b3b05d22fa08086e3b0f712"+
          "fcc7c71a557e2db966c3e9fa91746039")

    def test_case_sha384_3(self):
        self.check('sha384', b"a" * 1000000,
          "9d0e1809716474cb086e834e310a4a1ced149e9c00f248527972cec5704c2a5b"+
          "07b8b3dc38ecc4ebae97ddd87f3d8985")


    def test_case_sha512_0(self):
        self.check('sha512', b"",
          "cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce"+
          "47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e")

    def test_case_sha512_1(self):
        self.check('sha512', b"abc",
          "ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a"+
          "2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f")

    def test_case_sha512_2(self):
        self.check('sha512',
                   b"abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"+
                   b"hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
          "8e959b75dae313da8cf4f72814fc143f8f7779c6eb9f7fa17299aeadb6889018"+
          "501d289e4900f7e4331b99dec4b5433ac7d329eeb6dd26545e96e55b874be909")

    def test_case_sha512_3(self):
        self.check('sha512', b"a" * 1000000,
          "e718483d0ce769644e2e42c7bc15b4638e1f98b13b2044285632a803afa973eb"+
          "de0ff244877ea60a4cb0432ce577c31beb009c5c2c49aa2e4eadb217ad8cc09b")


def test_main():
    test_support.run_unittest(HashLibTestCase)


if __name__ == "__main__":
    test_main()