Mercurial > dropbear
annotate libtomcrypt/src/hashes/sha2/sha384.c @ 1659:d32bcb5c557d
Add Ed25519 support (#91)
* Add support for Ed25519 as a public key type
Ed25519 is a elliptic curve signature scheme that offers
better security than ECDSA and DSA and good performance. It may be
used for both user and host keys.
OpenSSH key import and fuzzer are not supported yet.
Initially inspired by Peter Szabo.
* Add curve25519 and ed25519 fuzzers
* Add import and export of Ed25519 keys
author | Vladislav Grishenko <themiron@users.noreply.github.com> |
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date | Wed, 11 Mar 2020 21:09:45 +0500 |
parents | 6dba84798cd5 |
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rev | line source |
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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 /** |
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10 @param sha384.c |
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11 LTC_SHA384 hash included in sha512.c, Tom St Denis |
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12 */ |
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13 |
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14 #include "tomcrypt.h" |
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15 |
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16 #if defined(LTC_SHA384) && defined(LTC_SHA512) |
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17 |
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18 const struct ltc_hash_descriptor sha384_desc = |
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19 { |
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20 "sha384", |
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21 4, |
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22 48, |
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23 128, |
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24 |
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25 /* OID */ |
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26 { 2, 16, 840, 1, 101, 3, 4, 2, 2, }, |
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27 9, |
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28 |
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29 &sha384_init, |
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30 &sha512_process, |
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31 &sha384_done, |
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32 &sha384_test, |
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33 NULL |
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34 }; |
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35 |
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36 /** |
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37 Initialize the hash state |
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38 @param md The hash state you wish to initialize |
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39 @return CRYPT_OK if successful |
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40 */ |
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41 int sha384_init(hash_state * md) |
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42 { |
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43 LTC_ARGCHK(md != NULL); |
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44 |
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45 md->sha512.curlen = 0; |
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46 md->sha512.length = 0; |
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47 md->sha512.state[0] = CONST64(0xcbbb9d5dc1059ed8); |
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48 md->sha512.state[1] = CONST64(0x629a292a367cd507); |
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49 md->sha512.state[2] = CONST64(0x9159015a3070dd17); |
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50 md->sha512.state[3] = CONST64(0x152fecd8f70e5939); |
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51 md->sha512.state[4] = CONST64(0x67332667ffc00b31); |
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52 md->sha512.state[5] = CONST64(0x8eb44a8768581511); |
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53 md->sha512.state[6] = CONST64(0xdb0c2e0d64f98fa7); |
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54 md->sha512.state[7] = CONST64(0x47b5481dbefa4fa4); |
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55 return CRYPT_OK; |
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56 } |
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57 |
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58 /** |
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59 Terminate the hash to get the digest |
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60 @param md The hash state |
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61 @param out [out] The destination of the hash (48 bytes) |
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62 @return CRYPT_OK if successful |
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63 */ |
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64 int sha384_done(hash_state * md, unsigned char *out) |
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65 { |
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66 unsigned char buf[64]; |
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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 if (md->sha512.curlen >= sizeof(md->sha512.buf)) { |
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72 return CRYPT_INVALID_ARG; |
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73 } |
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74 |
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75 sha512_done(md, buf); |
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76 XMEMCPY(out, buf, 48); |
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77 #ifdef LTC_CLEAN_STACK |
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78 zeromem(buf, sizeof(buf)); |
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79 #endif |
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80 return CRYPT_OK; |
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81 } |
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82 |
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83 /** |
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84 Self-test the hash |
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85 @return CRYPT_OK if successful, CRYPT_NOP if self-tests have been disabled |
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86 */ |
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87 int sha384_test(void) |
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88 { |
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89 #ifndef LTC_TEST |
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90 return CRYPT_NOP; |
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91 #else |
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92 static const struct { |
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93 const char *msg; |
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94 unsigned char hash[48]; |
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95 } tests[] = { |
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96 { "abc", |
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97 { 0xcb, 0x00, 0x75, 0x3f, 0x45, 0xa3, 0x5e, 0x8b, |
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98 0xb5, 0xa0, 0x3d, 0x69, 0x9a, 0xc6, 0x50, 0x07, |
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99 0x27, 0x2c, 0x32, 0xab, 0x0e, 0xde, 0xd1, 0x63, |
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100 0x1a, 0x8b, 0x60, 0x5a, 0x43, 0xff, 0x5b, 0xed, |
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101 0x80, 0x86, 0x07, 0x2b, 0xa1, 0xe7, 0xcc, 0x23, |
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102 0x58, 0xba, 0xec, 0xa1, 0x34, 0xc8, 0x25, 0xa7 } |
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103 }, |
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104 { "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu", |
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105 { 0x09, 0x33, 0x0c, 0x33, 0xf7, 0x11, 0x47, 0xe8, |
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106 0x3d, 0x19, 0x2f, 0xc7, 0x82, 0xcd, 0x1b, 0x47, |
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107 0x53, 0x11, 0x1b, 0x17, 0x3b, 0x3b, 0x05, 0xd2, |
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108 0x2f, 0xa0, 0x80, 0x86, 0xe3, 0xb0, 0xf7, 0x12, |
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109 0xfc, 0xc7, 0xc7, 0x1a, 0x55, 0x7e, 0x2d, 0xb9, |
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110 0x66, 0xc3, 0xe9, 0xfa, 0x91, 0x74, 0x60, 0x39 } |
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111 }, |
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112 }; |
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113 |
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114 int i; |
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115 unsigned char tmp[48]; |
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116 hash_state md; |
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117 |
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118 for (i = 0; i < (int)(sizeof(tests) / sizeof(tests[0])); i++) { |
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119 sha384_init(&md); |
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120 sha384_process(&md, (unsigned char*)tests[i].msg, (unsigned long)strlen(tests[i].msg)); |
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121 sha384_done(&md, tmp); |
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122 if (compare_testvector(tmp, sizeof(tmp), tests[i].hash, sizeof(tests[i].hash), "SHA384", i)) { |
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123 return CRYPT_FAIL_TESTVECTOR; |
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124 } |
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125 } |
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126 return CRYPT_OK; |
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127 #endif |
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128 } |
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129 |
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130 #endif /* defined(LTC_SHA384) && defined(LTC_SHA512) */ |
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131 |
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132 /* ref: $Format:%D$ */ |
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133 /* git commit: $Format:%H$ */ |
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134 /* commit time: $Format:%ai$ */ |