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annotate sha384.c @ 50:c61e66431001 libtomcrypt

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Merge of the normal Dropbear makefile: - Don't include mpi.o, since it does Bad Things (tm) (wrt LTM) - Don't try to make clean in tests if it doesn't exist (infinite looping makefiles, mmmmm)
author Matt Johnston <matt@ucc.asn.au>
date Sat, 07 Aug 2004 16:33:31 +0000
parents b939f2d4431e
children 7ed585a2c53b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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20
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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 *
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9 * Tom St Denis, [email protected], http://libtomcrypt.org
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10 */
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11
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12 /* included in sha512.c */
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13
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14 const struct _hash_descriptor sha384_desc =
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15 {
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16 "sha384",
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17 4,
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18 48,
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19 128,
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20
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21 /* DER identifier */
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22 { 0x30, 0x41, 0x30, 0x0D, 0x06, 0x09, 0x60, 0x86,
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23 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x02, 0x05,
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24 0x00, 0x04, 0x30 },
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25 19,
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26
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27 &sha384_init,
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28 &sha512_process,
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29 &sha384_done,
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30 &sha384_test
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31 };
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32
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33 void sha384_init(hash_state * md)
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34 {
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35 _ARGCHK(md != NULL);
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36
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37 md->sha512.curlen = 0;
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38 md->sha512.length = 0;
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39 md->sha512.state[0] = CONST64(0xcbbb9d5dc1059ed8);
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40 md->sha512.state[1] = CONST64(0x629a292a367cd507);
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41 md->sha512.state[2] = CONST64(0x9159015a3070dd17);
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42 md->sha512.state[3] = CONST64(0x152fecd8f70e5939);
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43 md->sha512.state[4] = CONST64(0x67332667ffc00b31);
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44 md->sha512.state[5] = CONST64(0x8eb44a8768581511);
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45 md->sha512.state[6] = CONST64(0xdb0c2e0d64f98fa7);
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46 md->sha512.state[7] = CONST64(0x47b5481dbefa4fa4);
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47 }
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48
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49 int sha384_done(hash_state * md, unsigned char *hash)
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50 {
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51 unsigned char buf[64];
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52
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53 _ARGCHK(md != NULL);
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54 _ARGCHK(hash != NULL);
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55
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56 if (md->sha512.curlen >= sizeof(md->sha512.buf)) {
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57 return CRYPT_INVALID_ARG;
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58 }
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59
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60 sha512_done(md, buf);
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61 memcpy(hash, buf, 48);
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62 #ifdef CLEAN_STACK
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63 zeromem(buf, sizeof(buf));
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64 #endif
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65 return CRYPT_OK;
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66 }
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67
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68 int sha384_test(void)
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69 {
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70 #ifndef LTC_TEST
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71 return CRYPT_NOP;
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72 #else
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73 static const struct {
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74 char *msg;
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75 unsigned char hash[48];
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76 } tests[] = {
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77 { "abc",
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78 { 0xcb, 0x00, 0x75, 0x3f, 0x45, 0xa3, 0x5e, 0x8b,
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79 0xb5, 0xa0, 0x3d, 0x69, 0x9a, 0xc6, 0x50, 0x07,
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80 0x27, 0x2c, 0x32, 0xab, 0x0e, 0xde, 0xd1, 0x63,
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81 0x1a, 0x8b, 0x60, 0x5a, 0x43, 0xff, 0x5b, 0xed,
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82 0x80, 0x86, 0x07, 0x2b, 0xa1, 0xe7, 0xcc, 0x23,
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83 0x58, 0xba, 0xec, 0xa1, 0x34, 0xc8, 0x25, 0xa7 }
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84 },
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85 { "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
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86 { 0x09, 0x33, 0x0c, 0x33, 0xf7, 0x11, 0x47, 0xe8,
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87 0x3d, 0x19, 0x2f, 0xc7, 0x82, 0xcd, 0x1b, 0x47,
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88 0x53, 0x11, 0x1b, 0x17, 0x3b, 0x3b, 0x05, 0xd2,
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89 0x2f, 0xa0, 0x80, 0x86, 0xe3, 0xb0, 0xf7, 0x12,
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90 0xfc, 0xc7, 0xc7, 0x1a, 0x55, 0x7e, 0x2d, 0xb9,
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91 0x66, 0xc3, 0xe9, 0xfa, 0x91, 0x74, 0x60, 0x39 }
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92 },
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93 };
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94
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95 int i;
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96 unsigned char tmp[48];
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97 hash_state md;
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98
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99 for (i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i++) {
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100 sha384_init(&md);
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101 sha384_process(&md, (unsigned char*)tests[i].msg, (unsigned long)strlen(tests[i].msg));
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102 sha384_done(&md, tmp);
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103 if (memcmp(tmp, tests[i].hash, 48) != 0) {
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104 return CRYPT_FAIL_TESTVECTOR;
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105 }
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106 }
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107 return CRYPT_OK;
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108 #endif
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109 }
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110
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111
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112
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113
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114