Mercurial > dropbear
annotate libtomcrypt/tests/ecc_test.c @ 1865:d940f8007a45
Fix testing with dropbearmulti
author | Matt Johnston <matt@ucc.asn.au> |
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date | Sun, 30 Jan 2022 13:46:52 +0800 |
parents | 6dba84798cd5 |
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rev | line source |
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1471
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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 #include <tomcrypt_test.h> |
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10 |
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11 #if defined(LTC_MECC) && defined(LTC_TEST_MPI) |
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12 |
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13 static unsigned int sizes[] = { |
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14 #ifdef LTC_ECC112 |
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15 14, |
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16 #endif |
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17 #ifdef LTC_ECC128 |
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18 16, |
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19 #endif |
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20 #ifdef LTC_ECC160 |
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21 20, |
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22 #endif |
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23 #ifdef LTC_ECC192 |
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24 24, |
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25 #endif |
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26 #ifdef LTC_ECC224 |
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27 28, |
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28 #endif |
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29 #ifdef LTC_ECC256 |
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30 32, |
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31 #endif |
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32 #ifdef LTC_ECC384 |
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33 48, |
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34 #endif |
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35 #ifdef LTC_ECC521 |
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36 65 |
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37 #endif |
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38 }; |
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39 |
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40 #ifdef LTC_ECC_SHAMIR |
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41 int ecc_test_shamir(void) |
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42 { |
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43 void *modulus, *mp, *kA, *kB, *rA, *rB; |
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44 ecc_point *G, *A, *B, *C1, *C2; |
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45 int x, y, z; |
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46 unsigned char buf[ECC_BUF_SIZE]; |
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47 |
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48 DO(mp_init_multi(&kA, &kB, &rA, &rB, &modulus, NULL)); |
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49 LTC_ARGCHK((G = ltc_ecc_new_point()) != NULL); |
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50 LTC_ARGCHK((A = ltc_ecc_new_point()) != NULL); |
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51 LTC_ARGCHK((B = ltc_ecc_new_point()) != NULL); |
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52 LTC_ARGCHK((C1 = ltc_ecc_new_point()) != NULL); |
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53 LTC_ARGCHK((C2 = ltc_ecc_new_point()) != NULL); |
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54 |
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55 for (x = 0; x < (int)(sizeof(sizes)/sizeof(sizes[0])); x++) { |
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56 /* get the base point */ |
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57 for (z = 0; ltc_ecc_sets[z].name; z++) { |
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58 if (sizes[z] < (unsigned int)ltc_ecc_sets[z].size) break; |
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59 } |
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60 LTC_ARGCHK(ltc_ecc_sets[z].name != NULL); |
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61 |
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62 /* load it */ |
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63 DO(mp_read_radix(G->x, ltc_ecc_sets[z].Gx, 16)); |
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64 DO(mp_read_radix(G->y, ltc_ecc_sets[z].Gy, 16)); |
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65 DO(mp_set(G->z, 1)); |
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66 DO(mp_read_radix(modulus, ltc_ecc_sets[z].prime, 16)); |
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67 DO(mp_montgomery_setup(modulus, &mp)); |
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68 |
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69 /* do 100 random tests */ |
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70 for (y = 0; y < 100; y++) { |
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71 /* pick a random r1, r2 */ |
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72 LTC_ARGCHK(yarrow_read(buf, sizes[x], &yarrow_prng) == sizes[x]); |
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73 DO(mp_read_unsigned_bin(rA, buf, sizes[x])); |
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74 LTC_ARGCHK(yarrow_read(buf, sizes[x], &yarrow_prng) == sizes[x]); |
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75 DO(mp_read_unsigned_bin(rB, buf, sizes[x])); |
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76 |
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77 /* compute rA * G = A */ |
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78 DO(ltc_mp.ecc_ptmul(rA, G, A, modulus, 1)); |
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79 |
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80 /* compute rB * G = B */ |
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81 DO(ltc_mp.ecc_ptmul(rB, G, B, modulus, 1)); |
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82 |
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83 /* pick a random kA, kB */ |
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84 LTC_ARGCHK(yarrow_read(buf, sizes[x], &yarrow_prng) == sizes[x]); |
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85 DO(mp_read_unsigned_bin(kA, buf, sizes[x])); |
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86 LTC_ARGCHK(yarrow_read(buf, sizes[x], &yarrow_prng) == sizes[x]); |
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87 DO(mp_read_unsigned_bin(kB, buf, sizes[x])); |
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88 |
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89 /* now, compute kA*A + kB*B = C1 using the older method */ |
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90 DO(ltc_mp.ecc_ptmul(kA, A, C1, modulus, 0)); |
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91 DO(ltc_mp.ecc_ptmul(kB, B, C2, modulus, 0)); |
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92 DO(ltc_mp.ecc_ptadd(C1, C2, C1, modulus, mp)); |
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93 DO(ltc_mp.ecc_map(C1, modulus, mp)); |
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94 |
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95 /* now compute using mul2add */ |
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96 DO(ltc_mp.ecc_mul2add(A, kA, B, kB, C2, modulus)); |
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97 |
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98 /* is they the sames? */ |
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99 if ((mp_cmp(C1->x, C2->x) != LTC_MP_EQ) || (mp_cmp(C1->y, C2->y) != LTC_MP_EQ) || (mp_cmp(C1->z, C2->z) != LTC_MP_EQ)) { |
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100 fprintf(stderr, "ECC failed shamir test: size=%d, testno=%d\n", sizes[x], y); |
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101 return 1; |
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102 } |
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103 } |
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104 mp_montgomery_free(mp); |
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105 } |
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106 ltc_ecc_del_point(C2); |
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107 ltc_ecc_del_point(C1); |
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108 ltc_ecc_del_point(B); |
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109 ltc_ecc_del_point(A); |
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110 ltc_ecc_del_point(G); |
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111 mp_clear_multi(kA, kB, rA, rB, modulus, NULL); |
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112 return 0; |
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113 } |
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114 #endif |
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115 |
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116 int ecc_tests (void) |
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117 { |
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118 unsigned char buf[4][4096], ch; |
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119 unsigned long x, y, z, s; |
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120 int stat, stat2; |
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121 ecc_key usera, userb, pubKey, privKey; |
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122 |
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123 DO(ecc_test ()); |
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124 |
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125 for (s = 0; s < (sizeof(sizes)/sizeof(sizes[0])); s++) { |
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126 /* make up two keys */ |
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127 DO(ecc_make_key (&yarrow_prng, find_prng ("yarrow"), sizes[s], &usera)); |
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128 DO(ecc_make_key (&yarrow_prng, find_prng ("yarrow"), sizes[s], &userb)); |
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129 |
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130 /* make the shared secret */ |
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131 x = sizeof(buf[0]); |
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132 DO(ecc_shared_secret (&usera, &userb, buf[0], &x)); |
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133 |
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134 y = sizeof(buf[1]); |
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135 DO(ecc_shared_secret (&userb, &usera, buf[1], &y)); |
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136 |
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137 if (y != x) { |
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138 fprintf(stderr, "ecc Shared keys are not same size."); |
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139 return 1; |
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140 } |
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141 |
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142 if (memcmp (buf[0], buf[1], x)) { |
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143 fprintf(stderr, "ecc Shared keys not same contents."); |
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144 return 1; |
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145 } |
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146 |
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147 /* now export userb */ |
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148 y = sizeof(buf[0]); |
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149 DO(ecc_export (buf[1], &y, PK_PUBLIC, &userb)); |
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150 ecc_free (&userb); |
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151 |
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152 /* import and make the shared secret again */ |
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153 DO(ecc_import (buf[1], y, &userb)); |
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154 |
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155 z = sizeof(buf[0]); |
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156 DO(ecc_shared_secret (&usera, &userb, buf[2], &z)); |
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157 |
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158 if (z != x) { |
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159 fprintf(stderr, "failed. Size don't match?"); |
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160 return 1; |
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161 } |
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162 if (memcmp (buf[0], buf[2], x)) { |
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163 fprintf(stderr, "Failed. Contents didn't match."); |
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164 return 1; |
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165 } |
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166 |
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167 /* export with ANSI X9.63 */ |
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168 y = sizeof(buf[1]); |
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169 DO(ecc_ansi_x963_export(&userb, buf[1], &y)); |
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170 ecc_free (&userb); |
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171 |
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172 /* now import the ANSI key */ |
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173 DO(ecc_ansi_x963_import(buf[1], y, &userb)); |
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174 |
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175 /* shared secret */ |
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176 z = sizeof(buf[0]); |
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177 DO(ecc_shared_secret (&usera, &userb, buf[2], &z)); |
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178 |
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179 if (z != x) { |
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180 fprintf(stderr, "failed. Size don't match?"); |
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181 return 1; |
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182 } |
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183 if (memcmp (buf[0], buf[2], x)) { |
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184 fprintf(stderr, "Failed. Contents didn't match."); |
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185 return 1; |
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186 } |
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187 |
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188 ecc_free (&usera); |
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189 ecc_free (&userb); |
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190 |
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191 /* test encrypt_key */ |
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192 DO(ecc_make_key (&yarrow_prng, find_prng ("yarrow"), sizes[s], &usera)); |
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193 |
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194 /* export key */ |
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195 x = sizeof(buf[0]); |
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196 DO(ecc_export(buf[0], &x, PK_PUBLIC, &usera)); |
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197 DO(ecc_import(buf[0], x, &pubKey)); |
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198 x = sizeof(buf[0]); |
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199 DO(ecc_export(buf[0], &x, PK_PRIVATE, &usera)); |
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200 DO(ecc_import(buf[0], x, &privKey)); |
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201 |
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202 for (ch = 0; ch < 32; ch++) { |
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203 buf[0][ch] = ch; |
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204 } |
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205 y = sizeof (buf[1]); |
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206 DO(ecc_encrypt_key (buf[0], 32, buf[1], &y, &yarrow_prng, find_prng ("yarrow"), find_hash ("sha256"), &pubKey)); |
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207 zeromem (buf[0], sizeof (buf[0])); |
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208 x = sizeof (buf[0]); |
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209 DO(ecc_decrypt_key (buf[1], y, buf[0], &x, &privKey)); |
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210 if (x != 32) { |
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211 fprintf(stderr, "Failed (length)"); |
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212 return 1; |
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213 } |
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214 for (ch = 0; ch < 32; ch++) { |
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215 if (buf[0][ch] != ch) { |
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216 fprintf(stderr, "Failed (contents)"); |
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217 return 1; |
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218 } |
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219 } |
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220 /* test sign_hash */ |
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221 for (ch = 0; ch < 16; ch++) { |
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222 buf[0][ch] = ch; |
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223 } |
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224 x = sizeof (buf[1]); |
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225 DO(ecc_sign_hash (buf[0], 16, buf[1], &x, &yarrow_prng, find_prng ("yarrow"), &privKey)); |
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226 DO(ecc_verify_hash (buf[1], x, buf[0], 16, &stat, &pubKey)); |
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227 buf[0][0] ^= 1; |
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228 DO(ecc_verify_hash (buf[1], x, buf[0], 16, &stat2, &privKey)); |
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229 if (!(stat == 1 && stat2 == 0)) { |
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230 fprintf(stderr, "ecc_verify_hash failed %d, %d, ", stat, stat2); |
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231 return 1; |
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232 } |
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233 /* test sign_hash_rfc7518 */ |
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234 for (ch = 0; ch < 16; ch++) { |
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235 buf[0][ch] = ch; |
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236 } |
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237 x = sizeof (buf[1]); |
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238 DO(ecc_sign_hash_rfc7518(buf[0], 16, buf[1], &x, &yarrow_prng, find_prng ("yarrow"), &privKey)); |
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239 DO(ecc_verify_hash_rfc7518(buf[1], x, buf[0], 16, &stat, &pubKey)); |
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240 buf[0][0] ^= 1; |
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241 DO(ecc_verify_hash_rfc7518(buf[1], x, buf[0], 16, &stat2, &privKey)); |
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242 if (!(stat == 1 && stat2 == 0)) { |
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243 fprintf(stderr, "ecc_verify_hash_rfc7518 failed %d, %d, ", stat, stat2); |
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244 return 1; |
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245 } |
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246 ecc_free (&usera); |
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247 ecc_free (&pubKey); |
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248 ecc_free (&privKey); |
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249 } |
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250 #ifdef LTC_ECC_SHAMIR |
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251 return ecc_test_shamir(); |
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252 #else |
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253 return 0; |
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254 #endif |
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255 } |
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256 |
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257 #else |
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258 |
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259 int ecc_tests(void) |
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260 { |
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261 return CRYPT_NOP; |
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262 } |
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263 |
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264 #endif |
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265 |
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266 /* ref: $Format:%D$ */ |
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267 /* git commit: $Format:%H$ */ |
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268 /* commit time: $Format:%ai$ */ |