Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 1 | /* crypto/ecdsa/ecdsatest.c */ |
| 2 | /* |
| 3 | * Written by Nils Larsch for the OpenSSL project. |
| 4 | */ |
| 5 | /* ==================================================================== |
| 6 | * Copyright (c) 2000-2005 The OpenSSL Project. All rights reserved. |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions |
| 10 | * are met: |
| 11 | * |
| 12 | * 1. Redistributions of source code must retain the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer. |
| 14 | * |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in |
| 17 | * the documentation and/or other materials provided with the |
| 18 | * distribution. |
| 19 | * |
| 20 | * 3. All advertising materials mentioning features or use of this |
| 21 | * software must display the following acknowledgment: |
| 22 | * "This product includes software developed by the OpenSSL Project |
| 23 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
| 24 | * |
| 25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| 26 | * endorse or promote products derived from this software without |
| 27 | * prior written permission. For written permission, please contact |
| 28 | * licensing@OpenSSL.org. |
| 29 | * |
| 30 | * 5. Products derived from this software may not be called "OpenSSL" |
| 31 | * nor may "OpenSSL" appear in their names without prior written |
| 32 | * permission of the OpenSSL Project. |
| 33 | * |
| 34 | * 6. Redistributions of any form whatsoever must retain the following |
| 35 | * acknowledgment: |
| 36 | * "This product includes software developed by the OpenSSL Project |
| 37 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
| 38 | * |
| 39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| 40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
| 43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| 50 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
| 51 | * ==================================================================== |
| 52 | * |
| 53 | * This product includes cryptographic software written by Eric Young |
| 54 | * (eay@cryptsoft.com). This product includes software written by Tim |
| 55 | * Hudson (tjh@cryptsoft.com). |
| 56 | * |
| 57 | */ |
| 58 | /* ==================================================================== |
| 59 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. |
| 60 | * |
| 61 | * Portions of the attached software ("Contribution") are developed by |
| 62 | * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project. |
| 63 | * |
| 64 | * The Contribution is licensed pursuant to the OpenSSL open source |
| 65 | * license provided above. |
| 66 | * |
| 67 | * The elliptic curve binary polynomial software is originally written by |
| 68 | * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories. |
| 69 | * |
| 70 | */ |
| 71 | |
| 72 | #include <stdio.h> |
| 73 | #include <stdlib.h> |
| 74 | #include <string.h> |
| 75 | |
| 76 | #include <openssl/opensslconf.h> /* To see if OPENSSL_NO_ECDSA is defined */ |
| 77 | |
| 78 | #ifdef OPENSSL_NO_ECDSA |
| 79 | int main(int argc, char * argv[]) |
| 80 | { |
| 81 | puts("Elliptic curves are disabled."); |
| 82 | return 0; |
| 83 | } |
| 84 | #else |
| 85 | |
| 86 | #include <openssl/crypto.h> |
| 87 | #include <openssl/bio.h> |
| 88 | #include <openssl/evp.h> |
| 89 | #include <openssl/bn.h> |
| 90 | #include <openssl/ecdsa.h> |
| 91 | #ifndef OPENSSL_NO_ENGINE |
| 92 | #include <openssl/engine.h> |
| 93 | #endif |
| 94 | #include <openssl/err.h> |
| 95 | #include <openssl/rand.h> |
| 96 | |
| 97 | static const char rnd_seed[] = "string to make the random number generator " |
| 98 | "think it has entropy"; |
| 99 | |
| 100 | /* declaration of the test functions */ |
| 101 | int x9_62_tests(BIO *); |
| 102 | int x9_62_test_internal(BIO *out, int nid, const char *r, const char *s); |
| 103 | int test_builtin(BIO *); |
| 104 | |
| 105 | /* functions to change the RAND_METHOD */ |
| 106 | int change_rand(void); |
| 107 | int restore_rand(void); |
| 108 | int fbytes(unsigned char *buf, int num); |
| 109 | |
| 110 | RAND_METHOD fake_rand; |
| 111 | const RAND_METHOD *old_rand; |
| 112 | |
| 113 | int change_rand(void) |
| 114 | { |
| 115 | /* save old rand method */ |
| 116 | if ((old_rand = RAND_get_rand_method()) == NULL) |
| 117 | return 0; |
| 118 | |
| 119 | fake_rand.seed = old_rand->seed; |
| 120 | fake_rand.cleanup = old_rand->cleanup; |
| 121 | fake_rand.add = old_rand->add; |
| 122 | fake_rand.status = old_rand->status; |
| 123 | /* use own random function */ |
| 124 | fake_rand.bytes = fbytes; |
| 125 | fake_rand.pseudorand = old_rand->bytes; |
| 126 | /* set new RAND_METHOD */ |
| 127 | if (!RAND_set_rand_method(&fake_rand)) |
| 128 | return 0; |
| 129 | return 1; |
| 130 | } |
| 131 | |
| 132 | int restore_rand(void) |
| 133 | { |
| 134 | if (!RAND_set_rand_method(old_rand)) |
| 135 | return 0; |
| 136 | else |
| 137 | return 1; |
| 138 | } |
| 139 | |
| 140 | static int fbytes_counter = 0; |
| 141 | static const char *numbers[8] = { |
| 142 | "651056770906015076056810763456358567190100156695615665659", |
| 143 | "6140507067065001063065065565667405560006161556565665656654", |
| 144 | "8763001015071075675010661307616710783570106710677817767166" |
| 145 | "71676178726717", |
| 146 | "7000000175690566466555057817571571075705015757757057795755" |
| 147 | "55657156756655", |
| 148 | "1275552191113212300012030439187146164646146646466749494799", |
| 149 | "1542725565216523985789236956265265265235675811949404040041", |
| 150 | "1456427555219115346513212300075341203043918714616464614664" |
| 151 | "64667494947990", |
| 152 | "1712787255652165239672857892369562652652652356758119494040" |
| 153 | "40041670216363"}; |
| 154 | |
| 155 | int fbytes(unsigned char *buf, int num) |
| 156 | { |
| 157 | int ret; |
| 158 | BIGNUM *tmp = NULL; |
| 159 | |
| 160 | if (fbytes_counter >= 8) |
| 161 | return 0; |
| 162 | tmp = BN_new(); |
| 163 | if (!tmp) |
| 164 | return 0; |
| 165 | if (!BN_dec2bn(&tmp, numbers[fbytes_counter])) |
| 166 | { |
| 167 | BN_free(tmp); |
| 168 | return 0; |
| 169 | } |
| 170 | fbytes_counter ++; |
| 171 | if (num != BN_num_bytes(tmp) || !BN_bn2bin(tmp, buf)) |
| 172 | ret = 0; |
| 173 | else |
| 174 | ret = 1; |
| 175 | if (tmp) |
| 176 | BN_free(tmp); |
| 177 | return ret; |
| 178 | } |
| 179 | |
| 180 | /* some tests from the X9.62 draft */ |
| 181 | int x9_62_test_internal(BIO *out, int nid, const char *r_in, const char *s_in) |
| 182 | { |
| 183 | int ret = 0; |
| 184 | const char message[] = "abc"; |
| 185 | unsigned char digest[20]; |
| 186 | unsigned int dgst_len = 0; |
| 187 | EVP_MD_CTX md_ctx; |
| 188 | EC_KEY *key = NULL; |
| 189 | ECDSA_SIG *signature = NULL; |
| 190 | BIGNUM *r = NULL, *s = NULL; |
| 191 | |
| 192 | EVP_MD_CTX_init(&md_ctx); |
| 193 | /* get the message digest */ |
| 194 | EVP_DigestInit(&md_ctx, EVP_ecdsa()); |
| 195 | EVP_DigestUpdate(&md_ctx, (const void*)message, 3); |
| 196 | EVP_DigestFinal(&md_ctx, digest, &dgst_len); |
| 197 | |
| 198 | BIO_printf(out, "testing %s: ", OBJ_nid2sn(nid)); |
| 199 | /* create the key */ |
| 200 | if ((key = EC_KEY_new_by_curve_name(nid)) == NULL) |
| 201 | goto x962_int_err; |
| 202 | if (!EC_KEY_generate_key(key)) |
| 203 | goto x962_int_err; |
| 204 | BIO_printf(out, "."); |
| 205 | (void)BIO_flush(out); |
| 206 | /* create the signature */ |
| 207 | signature = ECDSA_do_sign(digest, 20, key); |
| 208 | if (signature == NULL) |
| 209 | goto x962_int_err; |
| 210 | BIO_printf(out, "."); |
| 211 | (void)BIO_flush(out); |
| 212 | /* compare the created signature with the expected signature */ |
| 213 | if ((r = BN_new()) == NULL || (s = BN_new()) == NULL) |
| 214 | goto x962_int_err; |
| 215 | if (!BN_dec2bn(&r, r_in) || |
| 216 | !BN_dec2bn(&s, s_in)) |
| 217 | goto x962_int_err; |
| 218 | if (BN_cmp(signature->r ,r) || BN_cmp(signature->s, s)) |
| 219 | goto x962_int_err; |
| 220 | BIO_printf(out, "."); |
| 221 | (void)BIO_flush(out); |
| 222 | /* verify the signature */ |
| 223 | if (ECDSA_do_verify(digest, 20, signature, key) != 1) |
| 224 | goto x962_int_err; |
| 225 | BIO_printf(out, "."); |
| 226 | (void)BIO_flush(out); |
| 227 | |
| 228 | BIO_printf(out, " ok\n"); |
| 229 | ret = 1; |
| 230 | x962_int_err: |
| 231 | if (!ret) |
| 232 | BIO_printf(out, " failed\n"); |
| 233 | if (key) |
| 234 | EC_KEY_free(key); |
| 235 | if (signature) |
| 236 | ECDSA_SIG_free(signature); |
| 237 | if (r) |
| 238 | BN_free(r); |
| 239 | if (s) |
| 240 | BN_free(s); |
| 241 | EVP_MD_CTX_cleanup(&md_ctx); |
| 242 | return ret; |
| 243 | } |
| 244 | |
| 245 | int x9_62_tests(BIO *out) |
| 246 | { |
| 247 | int ret = 0; |
| 248 | |
| 249 | BIO_printf(out, "some tests from X9.62:\n"); |
| 250 | |
| 251 | /* set own rand method */ |
| 252 | if (!change_rand()) |
| 253 | goto x962_err; |
| 254 | |
| 255 | if (!x9_62_test_internal(out, NID_X9_62_prime192v1, |
| 256 | "3342403536405981729393488334694600415596881826869351677613", |
| 257 | "5735822328888155254683894997897571951568553642892029982342")) |
| 258 | goto x962_err; |
| 259 | if (!x9_62_test_internal(out, NID_X9_62_prime239v1, |
| 260 | "3086361431751678114926225473006680188549593787585317781474" |
| 261 | "62058306432176", |
| 262 | "3238135532097973577080787768312505059318910517550078427819" |
| 263 | "78505179448783")) |
| 264 | goto x962_err; |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 265 | if (!x9_62_test_internal(out, NID_X9_62_c2tnb191v1, |
| 266 | "87194383164871543355722284926904419997237591535066528048", |
| 267 | "308992691965804947361541664549085895292153777025772063598")) |
| 268 | goto x962_err; |
| 269 | if (!x9_62_test_internal(out, NID_X9_62_c2tnb239v1, |
| 270 | "2159633321041961198501834003903461262881815148684178964245" |
| 271 | "5876922391552", |
| 272 | "1970303740007316867383349976549972270528498040721988191026" |
| 273 | "49413465737174")) |
| 274 | goto x962_err; |
Alexandre Savard | 7541067 | 2012-08-08 09:50:01 -0400 | [diff] [blame] | 275 | |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 276 | ret = 1; |
| 277 | x962_err: |
| 278 | if (!restore_rand()) |
| 279 | ret = 0; |
| 280 | return ret; |
| 281 | } |
| 282 | |
| 283 | int test_builtin(BIO *out) |
| 284 | { |
| 285 | EC_builtin_curve *curves = NULL; |
| 286 | size_t crv_len = 0, n = 0; |
| 287 | EC_KEY *eckey = NULL, *wrong_eckey = NULL; |
| 288 | EC_GROUP *group; |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 289 | unsigned char digest[20], wrong_digest[20]; |
Alexandre Savard | 7541067 | 2012-08-08 09:50:01 -0400 | [diff] [blame] | 290 | unsigned char *signature = NULL; |
| 291 | unsigned int sig_len; |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 292 | int nid, ret = 0; |
| 293 | |
| 294 | /* fill digest values with some random data */ |
| 295 | if (!RAND_pseudo_bytes(digest, 20) || |
| 296 | !RAND_pseudo_bytes(wrong_digest, 20)) |
| 297 | { |
| 298 | BIO_printf(out, "ERROR: unable to get random data\n"); |
| 299 | goto builtin_err; |
| 300 | } |
| 301 | |
| 302 | /* create and verify a ecdsa signature with every availble curve |
| 303 | * (with ) */ |
| 304 | BIO_printf(out, "\ntesting ECDSA_sign() and ECDSA_verify() " |
| 305 | "with some internal curves:\n"); |
| 306 | |
| 307 | /* get a list of all internal curves */ |
| 308 | crv_len = EC_get_builtin_curves(NULL, 0); |
| 309 | |
| 310 | curves = OPENSSL_malloc(sizeof(EC_builtin_curve) * crv_len); |
| 311 | |
| 312 | if (curves == NULL) |
| 313 | { |
| 314 | BIO_printf(out, "malloc error\n"); |
| 315 | goto builtin_err; |
| 316 | } |
| 317 | |
| 318 | if (!EC_get_builtin_curves(curves, crv_len)) |
| 319 | { |
| 320 | BIO_printf(out, "unable to get internal curves\n"); |
| 321 | goto builtin_err; |
| 322 | } |
| 323 | |
| 324 | /* now create and verify a signature for every curve */ |
| 325 | for (n = 0; n < crv_len; n++) |
| 326 | { |
| 327 | unsigned char dirt, offset; |
| 328 | |
| 329 | nid = curves[n].nid; |
| 330 | if (nid == NID_ipsec4) |
| 331 | continue; |
| 332 | /* create new ecdsa key (== EC_KEY) */ |
| 333 | if ((eckey = EC_KEY_new()) == NULL) |
| 334 | goto builtin_err; |
| 335 | group = EC_GROUP_new_by_curve_name(nid); |
| 336 | if (group == NULL) |
| 337 | goto builtin_err; |
| 338 | if (EC_KEY_set_group(eckey, group) == 0) |
| 339 | goto builtin_err; |
| 340 | EC_GROUP_free(group); |
Alexandre Savard | 7541067 | 2012-08-08 09:50:01 -0400 | [diff] [blame] | 341 | if (EC_GROUP_get_degree(EC_KEY_get0_group(eckey)) < 160) |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 342 | /* drop the curve */ |
| 343 | { |
| 344 | EC_KEY_free(eckey); |
| 345 | eckey = NULL; |
| 346 | continue; |
| 347 | } |
| 348 | BIO_printf(out, "%s: ", OBJ_nid2sn(nid)); |
| 349 | /* create key */ |
| 350 | if (!EC_KEY_generate_key(eckey)) |
| 351 | { |
| 352 | BIO_printf(out, " failed\n"); |
| 353 | goto builtin_err; |
| 354 | } |
| 355 | /* create second key */ |
| 356 | if ((wrong_eckey = EC_KEY_new()) == NULL) |
| 357 | goto builtin_err; |
| 358 | group = EC_GROUP_new_by_curve_name(nid); |
| 359 | if (group == NULL) |
| 360 | goto builtin_err; |
| 361 | if (EC_KEY_set_group(wrong_eckey, group) == 0) |
| 362 | goto builtin_err; |
| 363 | EC_GROUP_free(group); |
| 364 | if (!EC_KEY_generate_key(wrong_eckey)) |
| 365 | { |
| 366 | BIO_printf(out, " failed\n"); |
| 367 | goto builtin_err; |
| 368 | } |
| 369 | |
| 370 | BIO_printf(out, "."); |
| 371 | (void)BIO_flush(out); |
| 372 | /* check key */ |
| 373 | if (!EC_KEY_check_key(eckey)) |
| 374 | { |
| 375 | BIO_printf(out, " failed\n"); |
| 376 | goto builtin_err; |
| 377 | } |
| 378 | BIO_printf(out, "."); |
| 379 | (void)BIO_flush(out); |
| 380 | /* create signature */ |
| 381 | sig_len = ECDSA_size(eckey); |
| 382 | if ((signature = OPENSSL_malloc(sig_len)) == NULL) |
| 383 | goto builtin_err; |
| 384 | if (!ECDSA_sign(0, digest, 20, signature, &sig_len, eckey)) |
| 385 | { |
| 386 | BIO_printf(out, " failed\n"); |
| 387 | goto builtin_err; |
| 388 | } |
| 389 | BIO_printf(out, "."); |
| 390 | (void)BIO_flush(out); |
| 391 | /* verify signature */ |
| 392 | if (ECDSA_verify(0, digest, 20, signature, sig_len, eckey) != 1) |
| 393 | { |
| 394 | BIO_printf(out, " failed\n"); |
| 395 | goto builtin_err; |
| 396 | } |
| 397 | BIO_printf(out, "."); |
| 398 | (void)BIO_flush(out); |
| 399 | /* verify signature with the wrong key */ |
| 400 | if (ECDSA_verify(0, digest, 20, signature, sig_len, |
| 401 | wrong_eckey) == 1) |
| 402 | { |
| 403 | BIO_printf(out, " failed\n"); |
| 404 | goto builtin_err; |
| 405 | } |
| 406 | BIO_printf(out, "."); |
| 407 | (void)BIO_flush(out); |
| 408 | /* wrong digest */ |
| 409 | if (ECDSA_verify(0, wrong_digest, 20, signature, sig_len, |
| 410 | eckey) == 1) |
| 411 | { |
| 412 | BIO_printf(out, " failed\n"); |
| 413 | goto builtin_err; |
| 414 | } |
| 415 | BIO_printf(out, "."); |
| 416 | (void)BIO_flush(out); |
Alexandre Savard | 7541067 | 2012-08-08 09:50:01 -0400 | [diff] [blame] | 417 | /* modify a single byte of the signature */ |
| 418 | offset = signature[10] % sig_len; |
| 419 | dirt = signature[11]; |
| 420 | signature[offset] ^= dirt ? dirt : 1; |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 421 | if (ECDSA_verify(0, digest, 20, signature, sig_len, eckey) == 1) |
| 422 | { |
| 423 | BIO_printf(out, " failed\n"); |
| 424 | goto builtin_err; |
| 425 | } |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 426 | BIO_printf(out, "."); |
| 427 | (void)BIO_flush(out); |
| 428 | |
| 429 | BIO_printf(out, " ok\n"); |
| 430 | /* cleanup */ |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 431 | OPENSSL_free(signature); |
| 432 | signature = NULL; |
| 433 | EC_KEY_free(eckey); |
| 434 | eckey = NULL; |
| 435 | EC_KEY_free(wrong_eckey); |
| 436 | wrong_eckey = NULL; |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 437 | } |
| 438 | |
| 439 | ret = 1; |
| 440 | builtin_err: |
| 441 | if (eckey) |
| 442 | EC_KEY_free(eckey); |
| 443 | if (wrong_eckey) |
| 444 | EC_KEY_free(wrong_eckey); |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 445 | if (signature) |
| 446 | OPENSSL_free(signature); |
Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 447 | if (curves) |
| 448 | OPENSSL_free(curves); |
| 449 | |
| 450 | return ret; |
| 451 | } |
| 452 | |
| 453 | int main(void) |
| 454 | { |
| 455 | int ret = 1; |
| 456 | BIO *out; |
| 457 | |
| 458 | out = BIO_new_fp(stdout, BIO_NOCLOSE); |
| 459 | |
| 460 | /* enable memory leak checking unless explicitly disabled */ |
| 461 | if (!((getenv("OPENSSL_DEBUG_MEMORY") != NULL) && |
| 462 | (0 == strcmp(getenv("OPENSSL_DEBUG_MEMORY"), "off")))) |
| 463 | { |
| 464 | CRYPTO_malloc_debug_init(); |
| 465 | CRYPTO_set_mem_debug_options(V_CRYPTO_MDEBUG_ALL); |
| 466 | } |
| 467 | else |
| 468 | { |
| 469 | /* OPENSSL_DEBUG_MEMORY=off */ |
| 470 | CRYPTO_set_mem_debug_functions(0, 0, 0, 0, 0); |
| 471 | } |
| 472 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON); |
| 473 | |
| 474 | ERR_load_crypto_strings(); |
| 475 | |
| 476 | /* initialize the prng */ |
| 477 | RAND_seed(rnd_seed, sizeof(rnd_seed)); |
| 478 | |
| 479 | /* the tests */ |
| 480 | if (!x9_62_tests(out)) goto err; |
| 481 | if (!test_builtin(out)) goto err; |
| 482 | |
| 483 | ret = 0; |
| 484 | err: |
| 485 | if (ret) |
| 486 | BIO_printf(out, "\nECDSA test failed\n"); |
| 487 | else |
| 488 | BIO_printf(out, "\nECDSA test passed\n"); |
| 489 | if (ret) |
| 490 | ERR_print_errors(out); |
| 491 | CRYPTO_cleanup_all_ex_data(); |
| 492 | ERR_remove_thread_state(NULL); |
| 493 | ERR_free_strings(); |
| 494 | CRYPTO_mem_leaks(out); |
| 495 | if (out != NULL) |
| 496 | BIO_free(out); |
| 497 | return ret; |
| 498 | } |
| 499 | #endif |