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comparison sha224.c @ 20:b939f2d4431e libtomcrypt

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Include files accidentally zeroed when merging 0.96 release
author Matt Johnston <matt@ucc.asn.au>
date Tue, 15 Jun 2004 16:47:55 +0000
parents 09ab3354aa21
children 7ed585a2c53b
comparison
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18:712dd6dfb0eb 20:b939f2d4431e
1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
2 *
3 * LibTomCrypt is a library that provides various cryptographic
4 * algorithms in a highly modular and flexible manner.
5 *
6 * The library is free for all purposes without any express
7 * guarantee it works.
8 *
9 * Tom St Denis, [email protected], http://libtomcrypt.org
10 */
11
12 /* SHA-224 new NIST standard based off of SHA-256 truncated to 224 bits */
13 const struct _hash_descriptor sha224_desc =
14 {
15 "sha224",
16 10,
17 28,
18 64,
19
20 /* DER identifier (not supported) */
21 { 0x00 },
22 0,
23
24 &sha224_init,
25 &sha256_process,
26 &sha224_done,
27 &sha224_test
28 };
29
30 /* init the sha256 er... sha224 state ;-) */
31 void sha224_init(hash_state * md)
32 {
33 _ARGCHK(md != NULL);
34
35 md->sha256.curlen = 0;
36 md->sha256.length = 0;
37 md->sha256.state[0] = 0xc1059ed8UL;
38 md->sha256.state[1] = 0x367cd507UL;
39 md->sha256.state[2] = 0x3070dd17UL;
40 md->sha256.state[3] = 0xf70e5939UL;
41 md->sha256.state[4] = 0xffc00b31UL;
42 md->sha256.state[5] = 0x68581511UL;
43 md->sha256.state[6] = 0x64f98fa7UL;
44 md->sha256.state[7] = 0xbefa4fa4UL;
45 }
46
47 int sha224_done(hash_state * md, unsigned char *hash)
48 {
49 unsigned char buf[32];
50 int err;
51
52 err = sha256_done(md, buf);
53 memcpy(hash, buf, 28);
54 #ifdef CLEAN_STACK
55 zeromem(buf, sizeof(buf));
56 #endif
57 return err;
58 }
59
60 int sha224_test(void)
61 {
62 #ifndef LTC_TEST
63 return CRYPT_NOP;
64 #else
65 static const struct {
66 char *msg;
67 unsigned char hash[28];
68 } tests[] = {
69 { "abc",
70 { 0x23, 0x09, 0x7d, 0x22, 0x34, 0x05, 0xd8,
71 0x22, 0x86, 0x42, 0xa4, 0x77, 0xbd, 0xa2,
72 0x55, 0xb3, 0x2a, 0xad, 0xbc, 0xe4, 0xbd,
73 0xa0, 0xb3, 0xf7, 0xe3, 0x6c, 0x9d, 0xa7 }
74 },
75 { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
76 { 0x75, 0x38, 0x8b, 0x16, 0x51, 0x27, 0x76,
77 0xcc, 0x5d, 0xba, 0x5d, 0xa1, 0xfd, 0x89,
78 0x01, 0x50, 0xb0, 0xc6, 0x45, 0x5c, 0xb4,
79 0xf5, 0x8b, 0x19, 0x52, 0x52, 0x25, 0x25 }
80 },
81 };
82
83 int i;
84 unsigned char tmp[28];
85 hash_state md;
86
87 for (i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i++) {
88 sha224_init(&md);
89 sha224_process(&md, (unsigned char*)tests[i].msg, (unsigned long)strlen(tests[i].msg));
90 sha224_done(&md, tmp);
91 if (memcmp(tmp, tests[i].hash, 28) != 0) {
92 return CRYPT_FAIL_TESTVECTOR;
93 }
94 }
95 return CRYPT_OK;
96 #endif
97 }
98