1/* $OpenBSD: rsa_test.c,v 1.4 2021/11/25 16:51:31 tb Exp $ */ 2/* 3 * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved. 4 * 5 * Licensed under the OpenSSL license (the "License"). You may not use 6 * this file except in compliance with the License. You can obtain a copy 7 * in the file LICENSE in the source distribution or at 8 * https://www.openssl.org/source/license.html 9 */ 10 11/* test vectors from p1ovect1.txt */ 12 13#include <stdio.h> 14#include <string.h> 15 16#include <openssl/crypto.h> 17#include <openssl/err.h> 18#include <openssl/rand.h> 19#include <openssl/bn.h> 20 21#ifdef OPENSSL_NO_RSA 22int main(int argc, char *argv[]) 23{ 24 printf("No RSA support\n"); 25 return (0); 26} 27#else 28# include <openssl/rsa.h> 29 30static int 31key1(RSA *key, unsigned char *c) 32{ 33 static unsigned char n[] = 34 "\x00\xAA\x36\xAB\xCE\x88\xAC\xFD\xFF\x55\x52\x3C\x7F\xC4\x52\x3F" 35 "\x90\xEF\xA0\x0D\xF3\x77\x4A\x25\x9F\x2E\x62\xB4\xC5\xD9\x9C\xB5" 36 "\xAD\xB3\x00\xA0\x28\x5E\x53\x01\x93\x0E\x0C\x70\xFB\x68\x76\x93" 37 "\x9C\xE6\x16\xCE\x62\x4A\x11\xE0\x08\x6D\x34\x1E\xBC\xAC\xA0\xA1" 38 "\xF5"; 39 40 static unsigned char e[] = "\x11"; 41 42 static unsigned char d[] = 43 "\x0A\x03\x37\x48\x62\x64\x87\x69\x5F\x5F\x30\xBC\x38\xB9\x8B\x44" 44 "\xC2\xCD\x2D\xFF\x43\x40\x98\xCD\x20\xD8\xA1\x38\xD0\x90\xBF\x64" 45 "\x79\x7C\x3F\xA7\xA2\xCD\xCB\x3C\xD1\xE0\xBD\xBA\x26\x54\xB4\xF9" 46 "\xDF\x8E\x8A\xE5\x9D\x73\x3D\x9F\x33\xB3\x01\x62\x4A\xFD\x1D\x51"; 47 48 static unsigned char p[] = 49 "\x00\xD8\x40\xB4\x16\x66\xB4\x2E\x92\xEA\x0D\xA3\xB4\x32\x04\xB5" 50 "\xCF\xCE\x33\x52\x52\x4D\x04\x16\xA5\xA4\x41\xE7\x00\xAF\x46\x12" 51 "\x0D"; 52 53 static unsigned char q[] = 54 "\x00\xC9\x7F\xB1\xF0\x27\xF4\x53\xF6\x34\x12\x33\xEA\xAA\xD1\xD9" 55 "\x35\x3F\x6C\x42\xD0\x88\x66\xB1\xD0\x5A\x0F\x20\x35\x02\x8B\x9D" 56 "\x89"; 57 58 static unsigned char dmp1[] = 59 "\x59\x0B\x95\x72\xA2\xC2\xA9\xC4\x06\x05\x9D\xC2\xAB\x2F\x1D\xAF" 60 "\xEB\x7E\x8B\x4F\x10\xA7\x54\x9E\x8E\xED\xF5\xB4\xFC\xE0\x9E\x05"; 61 62 static unsigned char dmq1[] = 63 "\x00\x8E\x3C\x05\x21\xFE\x15\xE0\xEA\x06\xA3\x6F\xF0\xF1\x0C\x99" 64 "\x52\xC3\x5B\x7A\x75\x14\xFD\x32\x38\xB8\x0A\xAD\x52\x98\x62\x8D" 65 "\x51"; 66 67 static unsigned char iqmp[] = 68 "\x36\x3F\xF7\x18\x9D\xA8\xE9\x0B\x1D\x34\x1F\x71\xD0\x9B\x76\xA8" 69 "\xA9\x43\xE1\x1D\x10\xB2\x4D\x24\x9F\x2D\xEA\xFE\xF8\x0C\x18\x26"; 70 71 static unsigned char ctext_ex[] = 72 "\x1b\x8f\x05\xf9\xca\x1a\x79\x52\x6e\x53\xf3\xcc\x51\x4f\xdb\x89" 73 "\x2b\xfb\x91\x93\x23\x1e\x78\xb9\x92\xe6\x8d\x50\xa4\x80\xcb\x52" 74 "\x33\x89\x5c\x74\x95\x8d\x5d\x02\xab\x8c\x0f\xd0\x40\xeb\x58\x44" 75 "\xb0\x05\xc3\x9e\xd8\x27\x4a\x9d\xbf\xa8\x06\x71\x40\x94\x39\xd2"; 76 77 BIGNUM *bn_n = NULL, *bn_e = NULL, *bn_d = NULL; 78 BIGNUM *bn_p = NULL, *bn_q = NULL; 79 BIGNUM *bn_dmp1 = NULL, *bn_dmq1 = NULL, *bn_iqmp = NULL; 80 81 bn_n = BN_bin2bn(n, sizeof(n) - 1, NULL); 82 bn_e = BN_bin2bn(e, sizeof(e) - 1, NULL); 83 bn_d = BN_bin2bn(d, sizeof(d) - 1, NULL); 84 if (bn_n == NULL || bn_e == NULL || bn_d == NULL) 85 goto err; 86 if (!RSA_set0_key(key, bn_n, bn_e, bn_d)) 87 goto err; 88 bn_n = NULL; 89 bn_e = NULL; 90 bn_d = NULL; 91 92 bn_p = BN_bin2bn(p, sizeof(p) - 1, NULL); 93 bn_q = BN_bin2bn(q, sizeof(q) - 1, NULL); 94 if (bn_p == NULL || bn_q == NULL) 95 goto err; 96 if (!RSA_set0_factors(key, bn_p, bn_q)) 97 goto err; 98 bn_p = NULL; 99 bn_q = NULL; 100 101 bn_dmp1 = BN_bin2bn(dmp1, sizeof(dmp1) - 1, NULL); 102 bn_dmq1 = BN_bin2bn(dmq1, sizeof(dmq1) - 1, NULL); 103 bn_iqmp = BN_bin2bn(iqmp, sizeof(iqmp) - 1, NULL); 104 if (bn_dmp1 == NULL || bn_dmq1 == NULL || bn_iqmp == NULL) 105 goto err; 106 if (!RSA_set0_crt_params(key, bn_dmp1, bn_dmq1, bn_iqmp)) 107 goto err; 108 bn_dmp1 = NULL; 109 bn_dmq1 = NULL; 110 bn_iqmp = NULL; 111 112 memcpy(c, ctext_ex, sizeof(ctext_ex) - 1); 113 return sizeof(ctext_ex) - 1; 114 115 err: 116 BN_free(bn_n); 117 BN_free(bn_e); 118 BN_free(bn_d); 119 BN_free(bn_p); 120 BN_free(bn_q); 121 BN_free(bn_dmp1); 122 BN_free(bn_dmq1); 123 BN_free(bn_iqmp); 124 125 return -1; 126} 127 128static int 129key2(RSA *key, unsigned char *c) 130{ 131 static unsigned char n[] = 132 "\x00\xA3\x07\x9A\x90\xDF\x0D\xFD\x72\xAC\x09\x0C\xCC\x2A\x78\xB8" 133 "\x74\x13\x13\x3E\x40\x75\x9C\x98\xFA\xF8\x20\x4F\x35\x8A\x0B\x26" 134 "\x3C\x67\x70\xE7\x83\xA9\x3B\x69\x71\xB7\x37\x79\xD2\x71\x7B\xE8" 135 "\x34\x77\xCF"; 136 137 static unsigned char e[] = "\x3"; 138 139 static unsigned char d[] = 140 "\x6C\xAF\xBC\x60\x94\xB3\xFE\x4C\x72\xB0\xB3\x32\xC6\xFB\x25\xA2" 141 "\xB7\x62\x29\x80\x4E\x68\x65\xFC\xA4\x5A\x74\xDF\x0F\x8F\xB8\x41" 142 "\x3B\x52\xC0\xD0\xE5\x3D\x9B\x59\x0F\xF1\x9B\xE7\x9F\x49\xDD\x21" 143 "\xE5\xEB"; 144 145 static unsigned char p[] = 146 "\x00\xCF\x20\x35\x02\x8B\x9D\x86\x98\x40\xB4\x16\x66\xB4\x2E\x92" 147 "\xEA\x0D\xA3\xB4\x32\x04\xB5\xCF\xCE\x91"; 148 149 static unsigned char q[] = 150 "\x00\xC9\x7F\xB1\xF0\x27\xF4\x53\xF6\x34\x12\x33\xEA\xAA\xD1\xD9" 151 "\x35\x3F\x6C\x42\xD0\x88\x66\xB1\xD0\x5F"; 152 153 static unsigned char dmp1[] = 154 "\x00\x8A\x15\x78\xAC\x5D\x13\xAF\x10\x2B\x22\xB9\x99\xCD\x74\x61" 155 "\xF1\x5E\x6D\x22\xCC\x03\x23\xDF\xDF\x0B"; 156 157 static unsigned char dmq1[] = 158 "\x00\x86\x55\x21\x4A\xC5\x4D\x8D\x4E\xCD\x61\x77\xF1\xC7\x36\x90" 159 "\xCE\x2A\x48\x2C\x8B\x05\x99\xCB\xE0\x3F"; 160 161 static unsigned char iqmp[] = 162 "\x00\x83\xEF\xEF\xB8\xA9\xA4\x0D\x1D\xB6\xED\x98\xAD\x84\xED\x13" 163 "\x35\xDC\xC1\x08\xF3\x22\xD0\x57\xCF\x8D"; 164 165 static unsigned char ctext_ex[] = 166 "\x14\xbd\xdd\x28\xc9\x83\x35\x19\x23\x80\xe8\xe5\x49\xb1\x58\x2a" 167 "\x8b\x40\xb4\x48\x6d\x03\xa6\xa5\x31\x1f\x1f\xd5\xf0\xa1\x80\xe4" 168 "\x17\x53\x03\x29\xa9\x34\x90\x74\xb1\x52\x13\x54\x29\x08\x24\x52" 169 "\x62\x51"; 170 171 BIGNUM *bn_n = NULL, *bn_e = NULL, *bn_d = NULL; 172 BIGNUM *bn_p = NULL, *bn_q = NULL; 173 BIGNUM *bn_dmp1 = NULL, *bn_dmq1 = NULL, *bn_iqmp = NULL; 174 175 bn_n = BN_bin2bn(n, sizeof(n) - 1, NULL); 176 bn_e = BN_bin2bn(e, sizeof(e) - 1, NULL); 177 bn_d = BN_bin2bn(d, sizeof(d) - 1, NULL); 178 if (bn_n == NULL || bn_e == NULL || bn_d == NULL) 179 goto err; 180 if (!RSA_set0_key(key, bn_n, bn_e, bn_d)) 181 goto err; 182 bn_n = NULL; 183 bn_e = NULL; 184 bn_d = NULL; 185 186 bn_p = BN_bin2bn(p, sizeof(p) - 1, NULL); 187 bn_q = BN_bin2bn(q, sizeof(q) - 1, NULL); 188 if (bn_p == NULL || bn_q == NULL) 189 goto err; 190 if (!RSA_set0_factors(key, bn_p, bn_q)) 191 goto err; 192 bn_p = NULL; 193 bn_q = NULL; 194 195 bn_dmp1 = BN_bin2bn(dmp1, sizeof(dmp1) - 1, NULL); 196 bn_dmq1 = BN_bin2bn(dmq1, sizeof(dmq1) - 1, NULL); 197 bn_iqmp = BN_bin2bn(iqmp, sizeof(iqmp) - 1, NULL); 198 if (bn_dmp1 == NULL || bn_dmq1 == NULL || bn_iqmp == NULL) 199 goto err; 200 if (!RSA_set0_crt_params(key, bn_dmp1, bn_dmq1, bn_iqmp)) 201 goto err; 202 bn_dmp1 = NULL; 203 bn_dmq1 = NULL; 204 bn_iqmp = NULL; 205 206 memcpy(c, ctext_ex, sizeof(ctext_ex) - 1); 207 return sizeof(ctext_ex) - 1; 208 209 err: 210 BN_free(bn_n); 211 BN_free(bn_e); 212 BN_free(bn_d); 213 BN_free(bn_p); 214 BN_free(bn_q); 215 BN_free(bn_dmp1); 216 BN_free(bn_dmq1); 217 BN_free(bn_iqmp); 218 219 return -1; 220} 221 222static int 223key3(RSA *key, unsigned char *c) 224{ 225 static unsigned char n[] = 226 "\x00\xBB\xF8\x2F\x09\x06\x82\xCE\x9C\x23\x38\xAC\x2B\x9D\xA8\x71" 227 "\xF7\x36\x8D\x07\xEE\xD4\x10\x43\xA4\x40\xD6\xB6\xF0\x74\x54\xF5" 228 "\x1F\xB8\xDF\xBA\xAF\x03\x5C\x02\xAB\x61\xEA\x48\xCE\xEB\x6F\xCD" 229 "\x48\x76\xED\x52\x0D\x60\xE1\xEC\x46\x19\x71\x9D\x8A\x5B\x8B\x80" 230 "\x7F\xAF\xB8\xE0\xA3\xDF\xC7\x37\x72\x3E\xE6\xB4\xB7\xD9\x3A\x25" 231 "\x84\xEE\x6A\x64\x9D\x06\x09\x53\x74\x88\x34\xB2\x45\x45\x98\x39" 232 "\x4E\xE0\xAA\xB1\x2D\x7B\x61\xA5\x1F\x52\x7A\x9A\x41\xF6\xC1\x68" 233 "\x7F\xE2\x53\x72\x98\xCA\x2A\x8F\x59\x46\xF8\xE5\xFD\x09\x1D\xBD" 234 "\xCB"; 235 236 static unsigned char e[] = "\x11"; 237 238 static unsigned char d[] = 239 "\x00\xA5\xDA\xFC\x53\x41\xFA\xF2\x89\xC4\xB9\x88\xDB\x30\xC1\xCD" 240 "\xF8\x3F\x31\x25\x1E\x06\x68\xB4\x27\x84\x81\x38\x01\x57\x96\x41" 241 "\xB2\x94\x10\xB3\xC7\x99\x8D\x6B\xC4\x65\x74\x5E\x5C\x39\x26\x69" 242 "\xD6\x87\x0D\xA2\xC0\x82\xA9\x39\xE3\x7F\xDC\xB8\x2E\xC9\x3E\xDA" 243 "\xC9\x7F\xF3\xAD\x59\x50\xAC\xCF\xBC\x11\x1C\x76\xF1\xA9\x52\x94" 244 "\x44\xE5\x6A\xAF\x68\xC5\x6C\x09\x2C\xD3\x8D\xC3\xBE\xF5\xD2\x0A" 245 "\x93\x99\x26\xED\x4F\x74\xA1\x3E\xDD\xFB\xE1\xA1\xCE\xCC\x48\x94" 246 "\xAF\x94\x28\xC2\xB7\xB8\x88\x3F\xE4\x46\x3A\x4B\xC8\x5B\x1C\xB3" 247 "\xC1"; 248 249 static unsigned char p[] = 250 "\x00\xEE\xCF\xAE\x81\xB1\xB9\xB3\xC9\x08\x81\x0B\x10\xA1\xB5\x60" 251 "\x01\x99\xEB\x9F\x44\xAE\xF4\xFD\xA4\x93\xB8\x1A\x9E\x3D\x84\xF6" 252 "\x32\x12\x4E\xF0\x23\x6E\x5D\x1E\x3B\x7E\x28\xFA\xE7\xAA\x04\x0A" 253 "\x2D\x5B\x25\x21\x76\x45\x9D\x1F\x39\x75\x41\xBA\x2A\x58\xFB\x65" 254 "\x99"; 255 256 static unsigned char q[] = 257 "\x00\xC9\x7F\xB1\xF0\x27\xF4\x53\xF6\x34\x12\x33\xEA\xAA\xD1\xD9" 258 "\x35\x3F\x6C\x42\xD0\x88\x66\xB1\xD0\x5A\x0F\x20\x35\x02\x8B\x9D" 259 "\x86\x98\x40\xB4\x16\x66\xB4\x2E\x92\xEA\x0D\xA3\xB4\x32\x04\xB5" 260 "\xCF\xCE\x33\x52\x52\x4D\x04\x16\xA5\xA4\x41\xE7\x00\xAF\x46\x15" 261 "\x03"; 262 263 static unsigned char dmp1[] = 264 "\x54\x49\x4C\xA6\x3E\xBA\x03\x37\xE4\xE2\x40\x23\xFC\xD6\x9A\x5A" 265 "\xEB\x07\xDD\xDC\x01\x83\xA4\xD0\xAC\x9B\x54\xB0\x51\xF2\xB1\x3E" 266 "\xD9\x49\x09\x75\xEA\xB7\x74\x14\xFF\x59\xC1\xF7\x69\x2E\x9A\x2E" 267 "\x20\x2B\x38\xFC\x91\x0A\x47\x41\x74\xAD\xC9\x3C\x1F\x67\xC9\x81"; 268 269 static unsigned char dmq1[] = 270 "\x47\x1E\x02\x90\xFF\x0A\xF0\x75\x03\x51\xB7\xF8\x78\x86\x4C\xA9" 271 "\x61\xAD\xBD\x3A\x8A\x7E\x99\x1C\x5C\x05\x56\xA9\x4C\x31\x46\xA7" 272 "\xF9\x80\x3F\x8F\x6F\x8A\xE3\x42\xE9\x31\xFD\x8A\xE4\x7A\x22\x0D" 273 "\x1B\x99\xA4\x95\x84\x98\x07\xFE\x39\xF9\x24\x5A\x98\x36\xDA\x3D"; 274 275 static unsigned char iqmp[] = 276 "\x00\xB0\x6C\x4F\xDA\xBB\x63\x01\x19\x8D\x26\x5B\xDB\xAE\x94\x23" 277 "\xB3\x80\xF2\x71\xF7\x34\x53\x88\x50\x93\x07\x7F\xCD\x39\xE2\x11" 278 "\x9F\xC9\x86\x32\x15\x4F\x58\x83\xB1\x67\xA9\x67\xBF\x40\x2B\x4E" 279 "\x9E\x2E\x0F\x96\x56\xE6\x98\xEA\x36\x66\xED\xFB\x25\x79\x80\x39" 280 "\xF7"; 281 282 static unsigned char ctext_ex[] = 283 "\xb8\x24\x6b\x56\xa6\xed\x58\x81\xae\xb5\x85\xd9\xa2\x5b\x2a\xd7" 284 "\x90\xc4\x17\xe0\x80\x68\x1b\xf1\xac\x2b\xc3\xde\xb6\x9d\x8b\xce" 285 "\xf0\xc4\x36\x6f\xec\x40\x0a\xf0\x52\xa7\x2e\x9b\x0e\xff\xb5\xb3" 286 "\xf2\xf1\x92\xdb\xea\xca\x03\xc1\x27\x40\x05\x71\x13\xbf\x1f\x06" 287 "\x69\xac\x22\xe9\xf3\xa7\x85\x2e\x3c\x15\xd9\x13\xca\xb0\xb8\x86" 288 "\x3a\x95\xc9\x92\x94\xce\x86\x74\x21\x49\x54\x61\x03\x46\xf4\xd4" 289 "\x74\xb2\x6f\x7c\x48\xb4\x2e\xe6\x8e\x1f\x57\x2a\x1f\xc4\x02\x6a" 290 "\xc4\x56\xb4\xf5\x9f\x7b\x62\x1e\xa1\xb9\xd8\x8f\x64\x20\x2f\xb1"; 291 292 BIGNUM *bn_n = NULL, *bn_e = NULL, *bn_d = NULL; 293 BIGNUM *bn_p = NULL, *bn_q = NULL; 294 BIGNUM *bn_dmp1 = NULL, *bn_dmq1 = NULL, *bn_iqmp = NULL; 295 296 bn_n = BN_bin2bn(n, sizeof(n) - 1, NULL); 297 bn_e = BN_bin2bn(e, sizeof(e) - 1, NULL); 298 bn_d = BN_bin2bn(d, sizeof(d) - 1, NULL); 299 if (bn_n == NULL || bn_e == NULL || bn_d == NULL) 300 goto err; 301 if (!RSA_set0_key(key, bn_n, bn_e, bn_d)) 302 goto err; 303 bn_n = NULL; 304 bn_e = NULL; 305 bn_d = NULL; 306 307 bn_p = BN_bin2bn(p, sizeof(p) - 1, NULL); 308 bn_q = BN_bin2bn(q, sizeof(q) - 1, NULL); 309 if (bn_p == NULL || bn_q == NULL) 310 goto err; 311 if (!RSA_set0_factors(key, bn_p, bn_q)) 312 goto err; 313 bn_p = NULL; 314 bn_q = NULL; 315 316 bn_dmp1 = BN_bin2bn(dmp1, sizeof(dmp1) - 1, NULL); 317 bn_dmq1 = BN_bin2bn(dmq1, sizeof(dmq1) - 1, NULL); 318 bn_iqmp = BN_bin2bn(iqmp, sizeof(iqmp) - 1, NULL); 319 if (bn_dmp1 == NULL || bn_dmq1 == NULL || bn_iqmp == NULL) 320 goto err; 321 if (!RSA_set0_crt_params(key, bn_dmp1, bn_dmq1, bn_iqmp)) 322 goto err; 323 bn_dmp1 = NULL; 324 bn_dmq1 = NULL; 325 bn_iqmp = NULL; 326 327 memcpy(c, ctext_ex, sizeof(ctext_ex) - 1); 328 329 return sizeof(ctext_ex) - 1; 330 331 err: 332 BN_free(bn_n); 333 BN_free(bn_e); 334 BN_free(bn_d); 335 BN_free(bn_p); 336 BN_free(bn_q); 337 BN_free(bn_dmp1); 338 BN_free(bn_dmq1); 339 BN_free(bn_iqmp); 340 341 return -1; 342} 343 344static int 345pad_unknown(void) 346{ 347 unsigned long l; 348 while ((l = ERR_get_error()) != 0) 349 if (ERR_GET_REASON(l) == RSA_R_UNKNOWN_PADDING_TYPE) 350 return (1); 351 return (0); 352} 353 354int 355main(int argc, char *argv[]) 356{ 357 int err = 0; 358 int v; 359 RSA *key; 360 unsigned char ptext[256]; 361 unsigned char ctext[256]; 362 static unsigned char ptext_ex[] = "\x54\x85\x9b\x34\x2c\x49\xea\x2a"; 363 unsigned char ctext_ex[256]; 364 int plen; 365 int clen = 0; 366 int num; 367 int n; 368 369 plen = sizeof(ptext_ex) - 1; 370 371 for (v = 0; v < 3; v++) { 372 key = RSA_new(); 373 switch (v) { 374 case 0: 375 clen = key1(key, ctext_ex); 376 break; 377 case 1: 378 clen = key2(key, ctext_ex); 379 break; 380 case 2: 381 clen = key3(key, ctext_ex); 382 break; 383 } 384 385 if (clen <= 0) { 386 printf("failed to generate key%d\n", v); 387 err = 1; 388 goto next; 389 } 390 391 num = RSA_public_encrypt(plen, ptext_ex, ctext, key, 392 RSA_PKCS1_PADDING); 393 if (num != clen) { 394 printf("PKCS#1 v1.5 encryption failed!\n"); 395 err = 1; 396 goto oaep; 397 } 398 399 num = RSA_private_decrypt(num, ctext, ptext, key, 400 RSA_PKCS1_PADDING); 401 if (num != plen || memcmp(ptext, ptext_ex, num) != 0) { 402 printf("PKCS#1 v1.5 decryption failed!\n"); 403 err = 1; 404 } else 405 printf("PKCS #1 v1.5 encryption/decryption ok\n"); 406 407 oaep: 408 ERR_clear_error(); 409 num = RSA_public_encrypt(plen, ptext_ex, ctext, key, 410 RSA_PKCS1_OAEP_PADDING); 411 if (num == -1 && pad_unknown()) { 412 printf("No OAEP support\n"); 413 goto next; 414 } 415 if (num != clen) { 416 printf("OAEP encryption failed!\n"); 417 err = 1; 418 goto next; 419 } 420 421 num = RSA_private_decrypt(num, ctext, ptext, key, 422 RSA_PKCS1_OAEP_PADDING); 423 if (num != plen || memcmp(ptext, ptext_ex, num) != 0) { 424 printf("OAEP decryption (encrypted data) failed!\n"); 425 err = 1; 426 } else if (memcmp(ctext, ctext_ex, num) == 0) 427 printf("OAEP test vector %d passed!\n", v); 428 429 /* 430 * Different ciphertexts (rsa_oaep.c without -DPKCS_TESTVECT). 431 * Try decrypting ctext_ex 432 */ 433 434 num = RSA_private_decrypt(clen, ctext_ex, ptext, key, 435 RSA_PKCS1_OAEP_PADDING); 436 if (num != plen || memcmp(ptext, ptext_ex, num) != 0) { 437 printf("OAEP decryption (test vector data) failed!\n"); 438 err = 1; 439 } else 440 printf("OAEP encryption/decryption ok\n"); 441 442 /* Try decrypting corrupted ciphertexts. */ 443 for (n = 0; n < clen; ++n) { 444 ctext[n] ^= 1; 445 num = RSA_private_decrypt(clen, ctext, ptext, key, 446 RSA_PKCS1_OAEP_PADDING); 447 if (num > 0) { 448 printf("Corrupt data decrypted!\n"); 449 err = 1; 450 break; 451 } 452 ctext[n] ^= 1; 453 } 454 455 /* Test truncated ciphertexts, as well as negative length. */ 456 for (n = -1; n < clen; ++n) { 457 num = RSA_private_decrypt(n, ctext, ptext, key, 458 RSA_PKCS1_OAEP_PADDING); 459 if (num > 0) { 460 printf("Truncated data decrypted!\n"); 461 err = 1; 462 break; 463 } 464 } 465 466 next: 467 RSA_free(key); 468 } 469 470 return err; 471} 472#endif 473