Mercurial > dropbear

annotate libtomcrypt/src/hashes/sha2/sha224.c @ 891:e78f5ce6e7bb

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cleanup before clearing keys
author Matt Johnston <matt@ucc.asn.au>
date Wed, 12 Feb 2014 22:15:02 +0800
parents 0cbe8f6dbf9e
children f849a5ca2efc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 *
382
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9 * Tom St Denis, [email protected], http://libtomcrypt.com
285
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10 */
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11 /**
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12 @param sha224.c
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13 SHA-224 new NIST standard based off of SHA-256 truncated to 224 bits (Tom St Denis)
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14 */
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15
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16 const struct ltc_hash_descriptor sha224_desc =
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17 {
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18 "sha224",
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19 10,
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20 28,
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21 64,
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22
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23 /* OID */
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24 { 2, 16, 840, 1, 101, 3, 4, 2, 4, },
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25 9,
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26
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27 &sha224_init,
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28 &sha256_process,
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29 &sha224_done,
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30 &sha224_test,
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31 NULL
285
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32 };
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33
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34 /* init the sha256 er... sha224 state ;-) */
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35 /**
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36 Initialize the hash state
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37 @param md The hash state you wish to initialize
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38 @return CRYPT_OK if successful
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39 */
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40 int sha224_init(hash_state * md)
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41 {
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42 LTC_ARGCHK(md != NULL);
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43
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44 md->sha256.curlen = 0;
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45 md->sha256.length = 0;
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46 md->sha256.state[0] = 0xc1059ed8UL;
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47 md->sha256.state[1] = 0x367cd507UL;
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48 md->sha256.state[2] = 0x3070dd17UL;
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49 md->sha256.state[3] = 0xf70e5939UL;
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50 md->sha256.state[4] = 0xffc00b31UL;
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51 md->sha256.state[5] = 0x68581511UL;
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52 md->sha256.state[6] = 0x64f98fa7UL;
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53 md->sha256.state[7] = 0xbefa4fa4UL;
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54 return CRYPT_OK;
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55 }
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56
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57 /**
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58 Terminate the hash to get the digest
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59 @param md The hash state
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60 @param out [out] The destination of the hash (28 bytes)
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61 @return CRYPT_OK if successful
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62 */
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63 int sha224_done(hash_state * md, unsigned char *out)
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64 {
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65 unsigned char buf[32];
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66 int err;
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67
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68 LTC_ARGCHK(md != NULL);
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69 LTC_ARGCHK(out != NULL);
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70
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71 err = sha256_done(md, buf);
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72 XMEMCPY(out, buf, 28);
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73 #ifdef LTC_CLEAN_STACK
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74 zeromem(buf, sizeof(buf));
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75 #endif
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76 return err;
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77 }
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78
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79 /**
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80 Self-test the hash
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81 @return CRYPT_OK if successful, CRYPT_NOP if self-tests have been disabled
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82 */
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83 int sha224_test(void)
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84 {
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85 #ifndef LTC_TEST
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86 return CRYPT_NOP;
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87 #else
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88 static const struct {
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89 char *msg;
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90 unsigned char hash[28];
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
91 } tests[] = {
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
92 { "abc",
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
93 { 0x23, 0x09, 0x7d, 0x22, 0x34, 0x05, 0xd8,
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
94 0x22, 0x86, 0x42, 0xa4, 0x77, 0xbd, 0xa2,
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
95 0x55, 0xb3, 0x2a, 0xad, 0xbc, 0xe4, 0xbd,
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
96 0xa0, 0xb3, 0xf7, 0xe3, 0x6c, 0x9d, 0xa7 }
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
97 },
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
98 { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
99 { 0x75, 0x38, 0x8b, 0x16, 0x51, 0x27, 0x76,
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
100 0xcc, 0x5d, 0xba, 0x5d, 0xa1, 0xfd, 0x89,
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
101 0x01, 0x50, 0xb0, 0xc6, 0x45, 0x5c, 0xb4,
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
102 0xf5, 0x8b, 0x19, 0x52, 0x52, 0x25, 0x25 }
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
103 },
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
104 };
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
105
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
106 int i;
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
107 unsigned char tmp[28];
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
108 hash_state md;
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
109
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
110 for (i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i++) {
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
111 sha224_init(&md);
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
112 sha224_process(&md, (unsigned char*)tests[i].msg, (unsigned long)strlen(tests[i].msg));
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
113 sha224_done(&md, tmp);
382
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents: 285
diff changeset
114 if (XMEMCMP(tmp, tests[i].hash, 28) != 0) {
285
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
115 return CRYPT_FAIL_TESTVECTOR;
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
116 }
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
117 }
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
118 return CRYPT_OK;
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
119 #endif
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
120 }
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
121
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
122
1b9e69c058d2 propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 20dccfc09627970a312d77fb41dc2970b62689c3)
Matt Johnston <matt@ucc.asn.au>
parents:
diff changeset
123 /* $Source: /cvs/libtom/libtomcrypt/src/hashes/sha2/sha224.c,v $ */
382
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents: 285
diff changeset
124 /* $Revision: 1.8 $ */
0cbe8f6dbf9e propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head 2af22fb4e878750b88f80f90d439b316d229796f)
Matt Johnston <matt@ucc.asn.au>
parents: 285
diff changeset
125 /* $Date: 2006/11/01 09:28:17 $ */