Mercurial > dropbear
annotate testprof/ecc_test.c @ 390:d8e44bef7917 libtomcrypt-dropbear
Replace // with /* */
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Thu, 11 Jan 2007 04:28:09 +0000 |
| parents | d5faf4814ddb |
| children |
| rev | line source |
|---|---|
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1 #include <tomcrypt_test.h> |
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2 |
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3 #ifdef MECC |
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4 |
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5 static int sizes[] = { |
| 380 | 6 #ifdef ECC112 |
| 7 14, | |
| 8 #endif | |
| 9 #ifdef ECC128 | |
| 10 16, | |
| 11 #endif | |
| 12 #ifdef ECC160 | |
| 13 20, | |
| 14 #endif | |
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15 #ifdef ECC192 |
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16 24, |
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17 #endif |
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18 #ifdef ECC224 |
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19 28, |
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20 #endif |
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21 #ifdef ECC256 |
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22 32, |
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23 #endif |
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24 #ifdef ECC384 |
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25 48, |
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26 #endif |
| 380 | 27 #ifdef ECC521 |
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28 65 |
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29 #endif |
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30 }; |
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31 |
| 380 | 32 #ifdef LTC_ECC_SHAMIR |
| 33 int ecc_test_shamir(void) | |
| 34 { | |
| 35 void *modulus, *mp, *kA, *kB, *rA, *rB; | |
| 36 ecc_point *G, *A, *B, *C1, *C2; | |
| 37 int x, y, z; | |
| 38 unsigned char buf[ECC_BUF_SIZE]; | |
| 39 | |
| 40 DO(mp_init_multi(&kA, &kB, &rA, &rB, &modulus, NULL)); | |
| 41 LTC_ARGCHK((G = ltc_ecc_new_point()) != NULL); | |
| 42 LTC_ARGCHK((A = ltc_ecc_new_point()) != NULL); | |
| 43 LTC_ARGCHK((B = ltc_ecc_new_point()) != NULL); | |
| 44 LTC_ARGCHK((C1 = ltc_ecc_new_point()) != NULL); | |
| 45 LTC_ARGCHK((C2 = ltc_ecc_new_point()) != NULL); | |
| 46 | |
| 47 for (x = 0; x < (int)(sizeof(sizes)/sizeof(sizes[0])); x++) { | |
| 48 /* get the base point */ | |
| 49 for (z = 0; ltc_ecc_sets[z].name; z++) { | |
| 50 if (sizes[z] < ltc_ecc_sets[z].size) break; | |
| 51 } | |
| 52 LTC_ARGCHK(ltc_ecc_sets[z].name != NULL); | |
| 53 | |
| 54 /* load it */ | |
| 55 DO(mp_read_radix(G->x, ltc_ecc_sets[z].Gx, 16)); | |
| 56 DO(mp_read_radix(G->y, ltc_ecc_sets[z].Gy, 16)); | |
| 57 DO(mp_set(G->z, 1)); | |
| 58 DO(mp_read_radix(modulus, ltc_ecc_sets[z].prime, 16)); | |
| 59 DO(mp_montgomery_setup(modulus, &mp)); | |
| 60 | |
| 61 /* do 100 random tests */ | |
| 62 for (y = 0; y < 100; y++) { | |
| 63 /* pick a random r1, r2 */ | |
| 64 LTC_ARGCHK(yarrow_read(buf, sizes[x], &yarrow_prng) == sizes[x]); | |
| 65 DO(mp_read_unsigned_bin(rA, buf, sizes[x])); | |
| 66 LTC_ARGCHK(yarrow_read(buf, sizes[x], &yarrow_prng) == sizes[x]); | |
| 67 DO(mp_read_unsigned_bin(rB, buf, sizes[x])); | |
| 68 | |
| 69 /* compute rA * G = A */ | |
| 70 DO(ltc_mp.ecc_ptmul(rA, G, A, modulus, 1)); | |
| 71 | |
| 72 /* compute rB * G = B */ | |
| 73 DO(ltc_mp.ecc_ptmul(rB, G, B, modulus, 1)); | |
| 74 | |
| 75 /* pick a random kA, kB */ | |
| 76 LTC_ARGCHK(yarrow_read(buf, sizes[x], &yarrow_prng) == sizes[x]); | |
| 77 DO(mp_read_unsigned_bin(kA, buf, sizes[x])); | |
| 78 LTC_ARGCHK(yarrow_read(buf, sizes[x], &yarrow_prng) == sizes[x]); | |
| 79 DO(mp_read_unsigned_bin(kB, buf, sizes[x])); | |
| 80 | |
| 81 /* now, compute kA*A + kB*B = C1 using the older method */ | |
| 82 DO(ltc_mp.ecc_ptmul(kA, A, C1, modulus, 0)); | |
| 83 DO(ltc_mp.ecc_ptmul(kB, B, C2, modulus, 0)); | |
| 84 DO(ltc_mp.ecc_ptadd(C1, C2, C1, modulus, mp)); | |
| 85 DO(ltc_mp.ecc_map(C1, modulus, mp)); | |
| 86 | |
| 87 /* now compute using mul2add */ | |
| 88 DO(ltc_mp.ecc_mul2add(A, kA, B, kB, C2, modulus)); | |
| 89 | |
| 90 /* is they the sames? */ | |
| 91 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)) { | |
| 92 fprintf(stderr, "ECC failed shamir test: size=%d, testno=%d\n", sizes[x], y); | |
| 93 return 1; | |
| 94 } | |
| 95 } | |
| 96 mp_montgomery_free(mp); | |
| 97 } | |
| 98 ltc_ecc_del_point(C2); | |
| 99 ltc_ecc_del_point(C1); | |
| 100 ltc_ecc_del_point(B); | |
| 101 ltc_ecc_del_point(A); | |
| 102 ltc_ecc_del_point(G); | |
| 103 mp_clear_multi(kA, kB, rA, rB, modulus, NULL); | |
| 104 return 0; | |
| 105 } | |
| 106 #endif | |
| 107 | |
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108 int ecc_tests (void) |
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109 { |
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110 unsigned char buf[4][4096]; |
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111 unsigned long x, y, z, s; |
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112 int stat, stat2; |
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113 ecc_key usera, userb, pubKey, privKey; |
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114 |
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115 DO(ecc_test ()); |
| 380 | 116 DO(ecc_test ()); |
| 117 DO(ecc_test ()); | |
| 118 DO(ecc_test ()); | |
| 119 DO(ecc_test ()); | |
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120 |
| 380 | 121 for (s = 0; s < (sizeof(sizes)/sizeof(sizes[0])); s++) { |
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122 /* make up two keys */ |
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123 DO(ecc_make_key (&yarrow_prng, find_prng ("yarrow"), sizes[s], &usera)); |
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124 DO(ecc_make_key (&yarrow_prng, find_prng ("yarrow"), sizes[s], &userb)); |
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125 |
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126 /* make the shared secret */ |
| 380 | 127 x = sizeof(buf[0]); |
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128 DO(ecc_shared_secret (&usera, &userb, buf[0], &x)); |
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129 |
| 380 | 130 y = sizeof(buf[1]); |
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131 DO(ecc_shared_secret (&userb, &usera, buf[1], &y)); |
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132 |
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133 if (y != x) { |
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134 fprintf(stderr, "ecc Shared keys are not same size."); |
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135 return 1; |
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136 } |
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137 |
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138 if (memcmp (buf[0], buf[1], x)) { |
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139 fprintf(stderr, "ecc Shared keys not same contents."); |
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140 return 1; |
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141 } |
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142 |
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143 /* now export userb */ |
| 380 | 144 y = sizeof(buf[0]); |
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145 DO(ecc_export (buf[1], &y, PK_PUBLIC, &userb)); |
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146 ecc_free (&userb); |
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147 |
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148 /* import and make the shared secret again */ |
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149 DO(ecc_import (buf[1], y, &userb)); |
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150 |
| 380 | 151 z = sizeof(buf[0]); |
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152 DO(ecc_shared_secret (&usera, &userb, buf[2], &z)); |
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153 |
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154 if (z != x) { |
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155 fprintf(stderr, "failed. Size don't match?"); |
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156 return 1; |
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157 } |
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158 if (memcmp (buf[0], buf[2], x)) { |
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159 fprintf(stderr, "Failed. Contents didn't match."); |
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160 return 1; |
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161 } |
| 380 | 162 |
| 163 /* export with ANSI X9.63 */ | |
| 164 y = sizeof(buf[1]); | |
| 165 DO(ecc_ansi_x963_export(&userb, buf[1], &y)); | |
| 166 ecc_free (&userb); | |
| 167 | |
| 168 /* now import the ANSI key */ | |
| 169 DO(ecc_ansi_x963_import(buf[1], y, &userb)); | |
| 170 | |
| 171 /* shared secret */ | |
| 172 z = sizeof(buf[0]); | |
| 173 DO(ecc_shared_secret (&usera, &userb, buf[2], &z)); | |
| 174 | |
| 175 if (z != x) { | |
| 176 fprintf(stderr, "failed. Size don't match?"); | |
| 177 return 1; | |
| 178 } | |
| 179 if (memcmp (buf[0], buf[2], x)) { | |
| 180 fprintf(stderr, "Failed. Contents didn't match."); | |
| 181 return 1; | |
| 182 } | |
| 183 | |
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184 ecc_free (&usera); |
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185 ecc_free (&userb); |
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186 |
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187 /* test encrypt_key */ |
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188 DO(ecc_make_key (&yarrow_prng, find_prng ("yarrow"), sizes[s], &usera)); |
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189 |
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190 /* export key */ |
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191 x = sizeof(buf[0]); |
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192 DO(ecc_export(buf[0], &x, PK_PUBLIC, &usera)); |
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193 DO(ecc_import(buf[0], x, &pubKey)); |
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194 x = sizeof(buf[0]); |
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195 DO(ecc_export(buf[0], &x, PK_PRIVATE, &usera)); |
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196 DO(ecc_import(buf[0], x, &privKey)); |
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197 |
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198 for (x = 0; x < 32; x++) { |
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199 buf[0][x] = x; |
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200 } |
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201 y = sizeof (buf[1]); |
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202 DO(ecc_encrypt_key (buf[0], 32, buf[1], &y, &yarrow_prng, find_prng ("yarrow"), find_hash ("sha256"), &pubKey)); |
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203 zeromem (buf[0], sizeof (buf[0])); |
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204 x = sizeof (buf[0]); |
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205 DO(ecc_decrypt_key (buf[1], y, buf[0], &x, &privKey)); |
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206 if (x != 32) { |
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207 fprintf(stderr, "Failed (length)"); |
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208 return 1; |
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209 } |
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210 for (x = 0; x < 32; x++) { |
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211 if (buf[0][x] != x) { |
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212 fprintf(stderr, "Failed (contents)"); |
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213 return 1; |
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214 } |
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215 } |
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216 /* test sign_hash */ |
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217 for (x = 0; x < 16; x++) { |
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218 buf[0][x] = x; |
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219 } |
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220 x = sizeof (buf[1]); |
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221 DO(ecc_sign_hash (buf[0], 16, buf[1], &x, &yarrow_prng, find_prng ("yarrow"), &privKey)); |
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222 DO(ecc_verify_hash (buf[1], x, buf[0], 16, &stat, &pubKey)); |
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223 buf[0][0] ^= 1; |
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224 DO(ecc_verify_hash (buf[1], x, buf[0], 16, &stat2, &privKey)); |
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225 if (!(stat == 1 && stat2 == 0)) { |
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226 fprintf(stderr, "ecc_verify_hash failed %d, %d, ", stat, stat2); |
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227 return 1; |
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228 } |
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229 ecc_free (&usera); |
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230 ecc_free (&pubKey); |
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231 ecc_free (&privKey); |
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232 } |
| 380 | 233 #ifdef LTC_ECC_SHAMIR |
| 234 return ecc_test_shamir(); | |
| 235 #else | |
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280
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236 return 0; |
| 380 | 237 #endif |
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280
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238 } |
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239 |
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240 #else |
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241 |
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242 int ecc_tests(void) |
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243 { |
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244 fprintf(stderr, "NOP"); |
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245 return 0; |
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246 } |
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247 |
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248 #endif |
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249 |
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250 /* $Source: /cvs/libtom/libtomcrypt/testprof/ecc_test.c,v $ */ |
| 380 | 251 /* $Revision: 1.21 $ */ |
| 252 /* $Date: 2006/12/04 03:21:03 $ */ |