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  1. /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  2. * All rights reserved.
  3. *
  4. * This package is an SSL implementation written
  5. * by Eric Young (eay@cryptsoft.com).
  6. * The implementation was written so as to conform with Netscapes SSL.
  7. *
  8. * This library is free for commercial and non-commercial use as long as
  9. * the following conditions are aheared to. The following conditions
  10. * apply to all code found in this distribution, be it the RC4, RSA,
  11. * lhash, DES, etc., code; not just the SSL code. The SSL documentation
  12. * included with this distribution is covered by the same copyright terms
  13. * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  14. *
  15. * Copyright remains Eric Young's, and as such any Copyright notices in
  16. * the code are not to be removed.
  17. * If this package is used in a product, Eric Young should be given attribution
  18. * as the author of the parts of the library used.
  19. * This can be in the form of a textual message at program startup or
  20. * in documentation (online or textual) provided with the package.
  21. *
  22. * Redistribution and use in source and binary forms, with or without
  23. * modification, are permitted provided that the following conditions
  24. * are met:
  25. * 1. Redistributions of source code must retain the copyright
  26. * notice, this list of conditions and the following disclaimer.
  27. * 2. Redistributions in binary form must reproduce the above copyright
  28. * notice, this list of conditions and the following disclaimer in the
  29. * documentation and/or other materials provided with the distribution.
  30. * 3. All advertising materials mentioning features or use of this software
  31. * must display the following acknowledgement:
  32. * "This product includes cryptographic software written by
  33. * Eric Young (eay@cryptsoft.com)"
  34. * The word 'cryptographic' can be left out if the rouines from the library
  35. * being used are not cryptographic related :-).
  36. * 4. If you include any Windows specific code (or a derivative thereof) from
  37. * the apps directory (application code) you must include an acknowledgement:
  38. * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  39. *
  40. * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  41. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  43. * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  44. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  45. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  46. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  48. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  49. * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  50. * SUCH DAMAGE.
  51. *
  52. * The licence and distribution terms for any publically available version or
  53. * derivative of this code cannot be changed. i.e. this code cannot simply be
  54. * copied and put under another distribution licence
  55. * [including the GNU Public Licence.] */
  56. #include <openssl/rsa.h>
  57. #include <openssl/bio.h>
  58. #include <openssl/bn.h>
  59. #include <openssl/err.h>
  60. #include <openssl/obj.h>
  61. #define SetKey \
  62. key->n = BN_bin2bn(n, sizeof(n) - 1, key->n); \
  63. key->e = BN_bin2bn(e, sizeof(e) - 1, key->e); \
  64. key->d = BN_bin2bn(d, sizeof(d) - 1, key->d); \
  65. key->p = BN_bin2bn(p, sizeof(p) - 1, key->p); \
  66. key->q = BN_bin2bn(q, sizeof(q) - 1, key->q); \
  67. key->dmp1 = BN_bin2bn(dmp1, sizeof(dmp1) - 1, key->dmp1); \
  68. key->dmq1 = BN_bin2bn(dmq1, sizeof(dmq1) - 1, key->dmq1); \
  69. key->iqmp = BN_bin2bn(iqmp, sizeof(iqmp) - 1, key->iqmp); \
  70. memcpy(c, ctext_ex, sizeof(ctext_ex) - 1); \
  71. return (sizeof(ctext_ex) - 1);
  72. static int key1(RSA *key, unsigned char *c) {
  73. static unsigned char n[] =
  74. "\x00\xAA\x36\xAB\xCE\x88\xAC\xFD\xFF\x55\x52\x3C\x7F\xC4\x52\x3F"
  75. "\x90\xEF\xA0\x0D\xF3\x77\x4A\x25\x9F\x2E\x62\xB4\xC5\xD9\x9C\xB5"
  76. "\xAD\xB3\x00\xA0\x28\x5E\x53\x01\x93\x0E\x0C\x70\xFB\x68\x76\x93"
  77. "\x9C\xE6\x16\xCE\x62\x4A\x11\xE0\x08\x6D\x34\x1E\xBC\xAC\xA0\xA1"
  78. "\xF5";
  79. static unsigned char e[] = "\x11";
  80. static unsigned char d[] =
  81. "\x0A\x03\x37\x48\x62\x64\x87\x69\x5F\x5F\x30\xBC\x38\xB9\x8B\x44"
  82. "\xC2\xCD\x2D\xFF\x43\x40\x98\xCD\x20\xD8\xA1\x38\xD0\x90\xBF\x64"
  83. "\x79\x7C\x3F\xA7\xA2\xCD\xCB\x3C\xD1\xE0\xBD\xBA\x26\x54\xB4\xF9"
  84. "\xDF\x8E\x8A\xE5\x9D\x73\x3D\x9F\x33\xB3\x01\x62\x4A\xFD\x1D\x51";
  85. static unsigned char p[] =
  86. "\x00\xD8\x40\xB4\x16\x66\xB4\x2E\x92\xEA\x0D\xA3\xB4\x32\x04\xB5"
  87. "\xCF\xCE\x33\x52\x52\x4D\x04\x16\xA5\xA4\x41\xE7\x00\xAF\x46\x12"
  88. "\x0D";
  89. static unsigned char q[] =
  90. "\x00\xC9\x7F\xB1\xF0\x27\xF4\x53\xF6\x34\x12\x33\xEA\xAA\xD1\xD9"
  91. "\x35\x3F\x6C\x42\xD0\x88\x66\xB1\xD0\x5A\x0F\x20\x35\x02\x8B\x9D"
  92. "\x89";
  93. static unsigned char dmp1[] =
  94. "\x59\x0B\x95\x72\xA2\xC2\xA9\xC4\x06\x05\x9D\xC2\xAB\x2F\x1D\xAF"
  95. "\xEB\x7E\x8B\x4F\x10\xA7\x54\x9E\x8E\xED\xF5\xB4\xFC\xE0\x9E\x05";
  96. static unsigned char dmq1[] =
  97. "\x00\x8E\x3C\x05\x21\xFE\x15\xE0\xEA\x06\xA3\x6F\xF0\xF1\x0C\x99"
  98. "\x52\xC3\x5B\x7A\x75\x14\xFD\x32\x38\xB8\x0A\xAD\x52\x98\x62\x8D"
  99. "\x51";
  100. static unsigned char iqmp[] =
  101. "\x36\x3F\xF7\x18\x9D\xA8\xE9\x0B\x1D\x34\x1F\x71\xD0\x9B\x76\xA8"
  102. "\xA9\x43\xE1\x1D\x10\xB2\x4D\x24\x9F\x2D\xEA\xFE\xF8\x0C\x18\x26";
  103. static unsigned char ctext_ex[] =
  104. "\x1b\x8f\x05\xf9\xca\x1a\x79\x52\x6e\x53\xf3\xcc\x51\x4f\xdb\x89"
  105. "\x2b\xfb\x91\x93\x23\x1e\x78\xb9\x92\xe6\x8d\x50\xa4\x80\xcb\x52"
  106. "\x33\x89\x5c\x74\x95\x8d\x5d\x02\xab\x8c\x0f\xd0\x40\xeb\x58\x44"
  107. "\xb0\x05\xc3\x9e\xd8\x27\x4a\x9d\xbf\xa8\x06\x71\x40\x94\x39\xd2";
  108. SetKey;
  109. }
  110. static int key2(RSA *key, unsigned char *c) {
  111. static unsigned char n[] =
  112. "\x00\xA3\x07\x9A\x90\xDF\x0D\xFD\x72\xAC\x09\x0C\xCC\x2A\x78\xB8"
  113. "\x74\x13\x13\x3E\x40\x75\x9C\x98\xFA\xF8\x20\x4F\x35\x8A\x0B\x26"
  114. "\x3C\x67\x70\xE7\x83\xA9\x3B\x69\x71\xB7\x37\x79\xD2\x71\x7B\xE8"
  115. "\x34\x77\xCF";
  116. static unsigned char e[] = "\x3";
  117. static unsigned char d[] =
  118. "\x6C\xAF\xBC\x60\x94\xB3\xFE\x4C\x72\xB0\xB3\x32\xC6\xFB\x25\xA2"
  119. "\xB7\x62\x29\x80\x4E\x68\x65\xFC\xA4\x5A\x74\xDF\x0F\x8F\xB8\x41"
  120. "\x3B\x52\xC0\xD0\xE5\x3D\x9B\x59\x0F\xF1\x9B\xE7\x9F\x49\xDD\x21"
  121. "\xE5\xEB";
  122. static unsigned char p[] =
  123. "\x00\xCF\x20\x35\x02\x8B\x9D\x86\x98\x40\xB4\x16\x66\xB4\x2E\x92"
  124. "\xEA\x0D\xA3\xB4\x32\x04\xB5\xCF\xCE\x91";
  125. static unsigned char q[] =
  126. "\x00\xC9\x7F\xB1\xF0\x27\xF4\x53\xF6\x34\x12\x33\xEA\xAA\xD1\xD9"
  127. "\x35\x3F\x6C\x42\xD0\x88\x66\xB1\xD0\x5F";
  128. static unsigned char dmp1[] =
  129. "\x00\x8A\x15\x78\xAC\x5D\x13\xAF\x10\x2B\x22\xB9\x99\xCD\x74\x61"
  130. "\xF1\x5E\x6D\x22\xCC\x03\x23\xDF\xDF\x0B";
  131. static unsigned char dmq1[] =
  132. "\x00\x86\x55\x21\x4A\xC5\x4D\x8D\x4E\xCD\x61\x77\xF1\xC7\x36\x90"
  133. "\xCE\x2A\x48\x2C\x8B\x05\x99\xCB\xE0\x3F";
  134. static unsigned char iqmp[] =
  135. "\x00\x83\xEF\xEF\xB8\xA9\xA4\x0D\x1D\xB6\xED\x98\xAD\x84\xED\x13"
  136. "\x35\xDC\xC1\x08\xF3\x22\xD0\x57\xCF\x8D";
  137. static unsigned char ctext_ex[] =
  138. "\x14\xbd\xdd\x28\xc9\x83\x35\x19\x23\x80\xe8\xe5\x49\xb1\x58\x2a"
  139. "\x8b\x40\xb4\x48\x6d\x03\xa6\xa5\x31\x1f\x1f\xd5\xf0\xa1\x80\xe4"
  140. "\x17\x53\x03\x29\xa9\x34\x90\x74\xb1\x52\x13\x54\x29\x08\x24\x52"
  141. "\x62\x51";
  142. SetKey;
  143. }
  144. static int key3(RSA *key, unsigned char *c) {
  145. static unsigned char n[] =
  146. "\x00\xBB\xF8\x2F\x09\x06\x82\xCE\x9C\x23\x38\xAC\x2B\x9D\xA8\x71"
  147. "\xF7\x36\x8D\x07\xEE\xD4\x10\x43\xA4\x40\xD6\xB6\xF0\x74\x54\xF5"
  148. "\x1F\xB8\xDF\xBA\xAF\x03\x5C\x02\xAB\x61\xEA\x48\xCE\xEB\x6F\xCD"
  149. "\x48\x76\xED\x52\x0D\x60\xE1\xEC\x46\x19\x71\x9D\x8A\x5B\x8B\x80"
  150. "\x7F\xAF\xB8\xE0\xA3\xDF\xC7\x37\x72\x3E\xE6\xB4\xB7\xD9\x3A\x25"
  151. "\x84\xEE\x6A\x64\x9D\x06\x09\x53\x74\x88\x34\xB2\x45\x45\x98\x39"
  152. "\x4E\xE0\xAA\xB1\x2D\x7B\x61\xA5\x1F\x52\x7A\x9A\x41\xF6\xC1\x68"
  153. "\x7F\xE2\x53\x72\x98\xCA\x2A\x8F\x59\x46\xF8\xE5\xFD\x09\x1D\xBD"
  154. "\xCB";
  155. static unsigned char e[] = "\x11";
  156. static unsigned char d[] =
  157. "\x00\xA5\xDA\xFC\x53\x41\xFA\xF2\x89\xC4\xB9\x88\xDB\x30\xC1\xCD"
  158. "\xF8\x3F\x31\x25\x1E\x06\x68\xB4\x27\x84\x81\x38\x01\x57\x96\x41"
  159. "\xB2\x94\x10\xB3\xC7\x99\x8D\x6B\xC4\x65\x74\x5E\x5C\x39\x26\x69"
  160. "\xD6\x87\x0D\xA2\xC0\x82\xA9\x39\xE3\x7F\xDC\xB8\x2E\xC9\x3E\xDA"
  161. "\xC9\x7F\xF3\xAD\x59\x50\xAC\xCF\xBC\x11\x1C\x76\xF1\xA9\x52\x94"
  162. "\x44\xE5\x6A\xAF\x68\xC5\x6C\x09\x2C\xD3\x8D\xC3\xBE\xF5\xD2\x0A"
  163. "\x93\x99\x26\xED\x4F\x74\xA1\x3E\xDD\xFB\xE1\xA1\xCE\xCC\x48\x94"
  164. "\xAF\x94\x28\xC2\xB7\xB8\x88\x3F\xE4\x46\x3A\x4B\xC8\x5B\x1C\xB3"
  165. "\xC1";
  166. static unsigned char p[] =
  167. "\x00\xEE\xCF\xAE\x81\xB1\xB9\xB3\xC9\x08\x81\x0B\x10\xA1\xB5\x60"
  168. "\x01\x99\xEB\x9F\x44\xAE\xF4\xFD\xA4\x93\xB8\x1A\x9E\x3D\x84\xF6"
  169. "\x32\x12\x4E\xF0\x23\x6E\x5D\x1E\x3B\x7E\x28\xFA\xE7\xAA\x04\x0A"
  170. "\x2D\x5B\x25\x21\x76\x45\x9D\x1F\x39\x75\x41\xBA\x2A\x58\xFB\x65"
  171. "\x99";
  172. static unsigned char q[] =
  173. "\x00\xC9\x7F\xB1\xF0\x27\xF4\x53\xF6\x34\x12\x33\xEA\xAA\xD1\xD9"
  174. "\x35\x3F\x6C\x42\xD0\x88\x66\xB1\xD0\x5A\x0F\x20\x35\x02\x8B\x9D"
  175. "\x86\x98\x40\xB4\x16\x66\xB4\x2E\x92\xEA\x0D\xA3\xB4\x32\x04\xB5"
  176. "\xCF\xCE\x33\x52\x52\x4D\x04\x16\xA5\xA4\x41\xE7\x00\xAF\x46\x15"
  177. "\x03";
  178. static unsigned char dmp1[] =
  179. "\x54\x49\x4C\xA6\x3E\xBA\x03\x37\xE4\xE2\x40\x23\xFC\xD6\x9A\x5A"
  180. "\xEB\x07\xDD\xDC\x01\x83\xA4\xD0\xAC\x9B\x54\xB0\x51\xF2\xB1\x3E"
  181. "\xD9\x49\x09\x75\xEA\xB7\x74\x14\xFF\x59\xC1\xF7\x69\x2E\x9A\x2E"
  182. "\x20\x2B\x38\xFC\x91\x0A\x47\x41\x74\xAD\xC9\x3C\x1F\x67\xC9\x81";
  183. static unsigned char dmq1[] =
  184. "\x47\x1E\x02\x90\xFF\x0A\xF0\x75\x03\x51\xB7\xF8\x78\x86\x4C\xA9"
  185. "\x61\xAD\xBD\x3A\x8A\x7E\x99\x1C\x5C\x05\x56\xA9\x4C\x31\x46\xA7"
  186. "\xF9\x80\x3F\x8F\x6F\x8A\xE3\x42\xE9\x31\xFD\x8A\xE4\x7A\x22\x0D"
  187. "\x1B\x99\xA4\x95\x84\x98\x07\xFE\x39\xF9\x24\x5A\x98\x36\xDA\x3D";
  188. static unsigned char iqmp[] =
  189. "\x00\xB0\x6C\x4F\xDA\xBB\x63\x01\x19\x8D\x26\x5B\xDB\xAE\x94\x23"
  190. "\xB3\x80\xF2\x71\xF7\x34\x53\x88\x50\x93\x07\x7F\xCD\x39\xE2\x11"
  191. "\x9F\xC9\x86\x32\x15\x4F\x58\x83\xB1\x67\xA9\x67\xBF\x40\x2B\x4E"
  192. "\x9E\x2E\x0F\x96\x56\xE6\x98\xEA\x36\x66\xED\xFB\x25\x79\x80\x39"
  193. "\xF7";
  194. static unsigned char ctext_ex[] =
  195. "\xb8\x24\x6b\x56\xa6\xed\x58\x81\xae\xb5\x85\xd9\xa2\x5b\x2a\xd7"
  196. "\x90\xc4\x17\xe0\x80\x68\x1b\xf1\xac\x2b\xc3\xde\xb6\x9d\x8b\xce"
  197. "\xf0\xc4\x36\x6f\xec\x40\x0a\xf0\x52\xa7\x2e\x9b\x0e\xff\xb5\xb3"
  198. "\xf2\xf1\x92\xdb\xea\xca\x03\xc1\x27\x40\x05\x71\x13\xbf\x1f\x06"
  199. "\x69\xac\x22\xe9\xf3\xa7\x85\x2e\x3c\x15\xd9\x13\xca\xb0\xb8\x86"
  200. "\x3a\x95\xc9\x92\x94\xce\x86\x74\x21\x49\x54\x61\x03\x46\xf4\xd4"
  201. "\x74\xb2\x6f\x7c\x48\xb4\x2e\xe6\x8e\x1f\x57\x2a\x1f\xc4\x02\x6a"
  202. "\xc4\x56\xb4\xf5\x9f\x7b\x62\x1e\xa1\xb9\xd8\x8f\x64\x20\x2f\xb1";
  203. SetKey;
  204. }
  205. static int test_only_d_given() {
  206. RSA *key = RSA_new();
  207. uint8_t buf[64];
  208. unsigned buf_len = sizeof(buf);
  209. const uint8_t kDummyHash[16] = {0};
  210. int ret = 0;
  211. if (!BN_hex2bn(&key->n,
  212. "00e77bbf3889d4ef36a9a25d4d69f3f632eb4362214c74517da6d6aeaa9bd"
  213. "09ac42b26621cd88f3a6eb013772fc3bf9f83914b6467231c630202c35b3e"
  214. "5808c659") ||
  215. !BN_hex2bn(&key->e, "010001") ||
  216. !BN_hex2bn(&key->d,
  217. "0365db9eb6d73b53b015c40cd8db4de7dd7035c68b5ac1bf786d7a4ee2cea"
  218. "316eaeca21a73ac365e58713195f2ae9849348525ca855386b6d028e437a9"
  219. "495a01") ||
  220. RSA_size(key) > sizeof(buf)) {
  221. goto err;
  222. }
  223. if (!RSA_sign(NID_md5, kDummyHash, sizeof(kDummyHash), buf, &buf_len, key)) {
  224. fprintf(stderr, "RSA_sign failed with only d given.\n");
  225. BIO_print_errors_fp(stderr);
  226. goto err;
  227. }
  228. if (!RSA_verify(NID_md5, kDummyHash, sizeof(kDummyHash), buf, buf_len, key)) {
  229. fprintf(stderr, "RSA_verify failed with only d given.\n");
  230. BIO_print_errors_fp(stderr);
  231. goto err;
  232. }
  233. ret = 1;
  234. err:
  235. RSA_free(key);
  236. return ret;
  237. }
  238. static int test_recover_crt_params() {
  239. RSA *key1, *key2;
  240. BIGNUM *e = BN_new();
  241. uint8_t buf[128];
  242. unsigned buf_len = sizeof(buf);
  243. const uint8_t kDummyHash[16] = {0};
  244. unsigned i;
  245. BN_set_word(e, RSA_F4);
  246. ERR_clear_error();
  247. for (i = 0; i < 1; i++) {
  248. key1 = RSA_new();
  249. if (!RSA_generate_key_ex(key1, 512, e, NULL)) {
  250. fprintf(stderr, "RSA_generate_key_ex failed.\n");
  251. BIO_print_errors_fp(stderr);
  252. return 0;
  253. }
  254. key2 = RSA_new();
  255. key2->n = BN_dup(key1->n);
  256. key2->e = BN_dup(key1->e);
  257. key2->d = BN_dup(key1->d);
  258. RSA_free(key1);
  259. if (!RSA_recover_crt_params(key2)) {
  260. fprintf(stderr, "RSA_recover_crt_params failed.\n");
  261. BIO_print_errors_fp(stderr);
  262. return 0;
  263. }
  264. if (RSA_size(key2) > buf_len) {
  265. return 0;
  266. }
  267. if (!RSA_sign(NID_md5, kDummyHash, sizeof(kDummyHash), buf, &buf_len,
  268. key2)) {
  269. fprintf(stderr, "RSA_sign failed with recovered key.\n");
  270. BIO_print_errors_fp(stderr);
  271. return 0;
  272. }
  273. if (!RSA_verify(NID_md5, kDummyHash, sizeof(kDummyHash), buf, buf_len,
  274. key2)) {
  275. fprintf(stderr, "RSA_verify failed with recovered key.\n");
  276. BIO_print_errors_fp(stderr);
  277. return 0;
  278. }
  279. RSA_free(key2);
  280. }
  281. BN_free(e);
  282. return 1;
  283. }
  284. int main(int argc, char *argv[]) {
  285. int err = 0;
  286. int v;
  287. RSA *key;
  288. unsigned char ptext[256];
  289. unsigned char ctext[256];
  290. static unsigned char ptext_ex[] = "\x54\x85\x9b\x34\x2c\x49\xea\x2a";
  291. unsigned char ctext_ex[256];
  292. int plen;
  293. int clen = 0;
  294. int num;
  295. int n;
  296. plen = sizeof(ptext_ex) - 1;
  297. for (v = 0; v < 3; v++) {
  298. key = RSA_new();
  299. switch (v) {
  300. case 0:
  301. clen = key1(key, ctext_ex);
  302. break;
  303. case 1:
  304. clen = key2(key, ctext_ex);
  305. break;
  306. case 2:
  307. clen = key3(key, ctext_ex);
  308. break;
  309. default:
  310. abort();
  311. return 1;
  312. }
  313. num = RSA_public_encrypt(plen, ptext_ex, ctext, key, RSA_PKCS1_PADDING);
  314. if (num != clen) {
  315. printf("PKCS#1 v1.5 encryption failed!\n");
  316. err = 1;
  317. goto oaep;
  318. }
  319. num = RSA_private_decrypt(num, ctext, ptext, key, RSA_PKCS1_PADDING);
  320. if (num != plen || memcmp(ptext, ptext_ex, num) != 0) {
  321. printf("PKCS#1 v1.5 decryption failed!\n");
  322. err = 1;
  323. } else {
  324. printf("PKCS #1 v1.5 encryption/decryption ok\n");
  325. }
  326. oaep:
  327. ERR_clear_error();
  328. num =
  329. RSA_public_encrypt(plen, ptext_ex, ctext, key, RSA_PKCS1_OAEP_PADDING);
  330. if (num == -1) {
  331. printf("No OAEP support\n");
  332. goto next;
  333. }
  334. if (num != clen) {
  335. printf("OAEP encryption failed!\n");
  336. err = 1;
  337. goto next;
  338. }
  339. num = RSA_private_decrypt(num, ctext, ptext, key, RSA_PKCS1_OAEP_PADDING);
  340. if (num != plen || memcmp(ptext, ptext_ex, num) != 0) {
  341. printf("OAEP decryption (encrypted data) failed!\n");
  342. err = 1;
  343. } else if (memcmp(ctext, ctext_ex, num) == 0) {
  344. printf("OAEP test vector %d passed!\n", v);
  345. }
  346. /* Different ciphertexts (rsa_oaep.c without -DPKCS_TESTVECT).
  347. Try decrypting ctext_ex */
  348. num =
  349. RSA_private_decrypt(clen, ctext_ex, ptext, key, RSA_PKCS1_OAEP_PADDING);
  350. if (num != plen || memcmp(ptext, ptext_ex, num) != 0) {
  351. printf("OAEP decryption (test vector data) failed!\n");
  352. err = 1;
  353. } else {
  354. printf("OAEP encryption/decryption ok\n");
  355. }
  356. /* Try decrypting corrupted ciphertexts */
  357. for (n = 0; n < clen; ++n) {
  358. int b;
  359. unsigned char saved = ctext[n];
  360. for (b = 0; b < 256; ++b) {
  361. if (b == saved)
  362. continue;
  363. ctext[n] = b;
  364. num =
  365. RSA_private_decrypt(num, ctext, ptext, key, RSA_PKCS1_OAEP_PADDING);
  366. if (num > 0) {
  367. printf("Corrupt data decrypted!\n");
  368. err = 1;
  369. }
  370. }
  371. }
  372. next:
  373. RSA_free(key);
  374. }
  375. if (err != 0 ||
  376. !test_only_d_given() ||
  377. !test_recover_crt_params()) {
  378. err = 1;
  379. }
  380. if (err == 0) {
  381. printf("PASS\n");
  382. }
  383. return err;
  384. }