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| 1 /* crypto/evp/p_lib.c */ | |
| 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
| 3 * All rights reserved. | |
| 4 * | |
| 5 * This package is an SSL implementation written | |
| 6 * by Eric Young (eay@cryptsoft.com). | |
| 7 * The implementation was written so as to conform with Netscapes SSL. | |
| 8 * | |
| 9 * This library is free for commercial and non-commercial use as long as | |
| 10 * the following conditions are aheared to. The following conditions | |
| 11 * apply to all code found in this distribution, be it the RC4, RSA, | |
| 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
| 13 * included with this distribution is covered by the same copyright terms | |
| 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
| 15 * | |
| 16 * Copyright remains Eric Young's, and as such any Copyright notices in | |
| 17 * the code are not to be removed. | |
| 18 * If this package is used in a product, Eric Young should be given attribution | |
| 19 * as the author of the parts of the library used. | |
| 20 * This can be in the form of a textual message at program startup or | |
| 21 * in documentation (online or textual) provided with the package. | |
| 22 * | |
| 23 * Redistribution and use in source and binary forms, with or without | |
| 24 * modification, are permitted provided that the following conditions | |
| 25 * are met: | |
| 26 * 1. Redistributions of source code must retain the copyright | |
| 27 * notice, this list of conditions and the following disclaimer. | |
| 28 * 2. Redistributions in binary form must reproduce the above copyright | |
| 29 * notice, this list of conditions and the following disclaimer in the | |
| 30 * documentation and/or other materials provided with the distribution. | |
| 31 * 3. All advertising materials mentioning features or use of this software | |
| 32 * must display the following acknowledgement: | |
| 33 * "This product includes cryptographic software written by | |
| 34 * Eric Young (eay@cryptsoft.com)" | |
| 35 * The word 'cryptographic' can be left out if the rouines from the library | |
| 36 * being used are not cryptographic related :-). | |
| 37 * 4. If you include any Windows specific code (or a derivative thereof) from | |
| 38 * the apps directory (application code) you must include an acknowledgement: | |
| 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
| 40 * | |
| 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | |
| 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
| 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 51 * SUCH DAMAGE. | |
| 52 * | |
| 53 * The licence and distribution terms for any publically available version or | |
| 54 * derivative of this code cannot be changed. i.e. this code cannot simply be | |
| 55 * copied and put under another distribution licence | |
| 56 * [including the GNU Public Licence.] | |
| 57 */ | |
| 58 | |
| 59 #include <stdio.h> | |
| 60 #include "cryptlib.h" | |
| 61 #include <openssl/bn.h> | |
| 62 #include <openssl/err.h> | |
| 63 #include <openssl/objects.h> | |
| 64 #include <openssl/evp.h> | |
| 65 #include <openssl/asn1_mac.h> | |
| 66 #include <openssl/x509.h> | |
| 67 #ifndef OPENSSL_NO_RSA | |
| 68 #include <openssl/rsa.h> | |
| 69 #endif | |
| 70 #ifndef OPENSSL_NO_DSA | |
| 71 #include <openssl/dsa.h> | |
| 72 #endif | |
| 73 #ifndef OPENSSL_NO_DH | |
| 74 #include <openssl/dh.h> | |
| 75 #endif | |
| 76 | |
| 77 #ifndef OPENSSL_NO_ENGINE | |
| 78 #include <openssl/engine.h> | |
| 79 #endif | |
| 80 | |
| 81 #include "asn1_locl.h" | |
| 82 | |
| 83 static void EVP_PKEY_free_it(EVP_PKEY *x); | |
| 84 | |
| 85 int EVP_PKEY_bits(EVP_PKEY *pkey) | |
| 86 { | |
| 87 if (pkey && pkey->ameth && pkey->ameth->pkey_bits) | |
| 88 return pkey->ameth->pkey_bits(pkey); | |
| 89 return 0; | |
| 90 } | |
| 91 | |
| 92 int EVP_PKEY_size(EVP_PKEY *pkey) | |
| 93 { | |
| 94 if (pkey && pkey->ameth && pkey->ameth->pkey_size) | |
| 95 return pkey->ameth->pkey_size(pkey); | |
| 96 return 0; | |
| 97 } | |
| 98 | |
| 99 int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode) | |
| 100 { | |
| 101 #ifndef OPENSSL_NO_DSA | |
| 102 if (pkey->type == EVP_PKEY_DSA) | |
| 103 { | |
| 104 int ret=pkey->save_parameters; | |
| 105 | |
| 106 if (mode >= 0) | |
| 107 pkey->save_parameters=mode; | |
| 108 return(ret); | |
| 109 } | |
| 110 #endif | |
| 111 #ifndef OPENSSL_NO_EC | |
| 112 if (pkey->type == EVP_PKEY_EC) | |
| 113 { | |
| 114 int ret = pkey->save_parameters; | |
| 115 | |
| 116 if (mode >= 0) | |
| 117 pkey->save_parameters = mode; | |
| 118 return(ret); | |
| 119 } | |
| 120 #endif | |
| 121 return(0); | |
| 122 } | |
| 123 | |
| 124 int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from) | |
| 125 { | |
| 126 if (to->type != from->type) | |
| 127 { | |
| 128 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_DIFFERENT_KEY_TYPES)
; | |
| 129 goto err; | |
| 130 } | |
| 131 | |
| 132 if (EVP_PKEY_missing_parameters(from)) | |
| 133 { | |
| 134 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_MISSING_PARAMETERS); | |
| 135 goto err; | |
| 136 } | |
| 137 if (from->ameth && from->ameth->param_copy) | |
| 138 return from->ameth->param_copy(to, from); | |
| 139 err: | |
| 140 return 0; | |
| 141 } | |
| 142 | |
| 143 int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey) | |
| 144 { | |
| 145 if (pkey->ameth && pkey->ameth->param_missing) | |
| 146 return pkey->ameth->param_missing(pkey); | |
| 147 return 0; | |
| 148 } | |
| 149 | |
| 150 int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b) | |
| 151 { | |
| 152 if (a->type != b->type) | |
| 153 return -1; | |
| 154 if (a->ameth && a->ameth->param_cmp) | |
| 155 return a->ameth->param_cmp(a, b); | |
| 156 return -2; | |
| 157 } | |
| 158 | |
| 159 int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b) | |
| 160 { | |
| 161 if (a->type != b->type) | |
| 162 return -1; | |
| 163 | |
| 164 if (a->ameth) | |
| 165 { | |
| 166 int ret; | |
| 167 /* Compare parameters if the algorithm has them */ | |
| 168 if (a->ameth->param_cmp) | |
| 169 { | |
| 170 ret = a->ameth->param_cmp(a, b); | |
| 171 if (ret <= 0) | |
| 172 return ret; | |
| 173 } | |
| 174 | |
| 175 if (a->ameth->pub_cmp) | |
| 176 return a->ameth->pub_cmp(a, b); | |
| 177 } | |
| 178 | |
| 179 return -2; | |
| 180 } | |
| 181 | |
| 182 EVP_PKEY *EVP_PKEY_new(void) | |
| 183 { | |
| 184 EVP_PKEY *ret; | |
| 185 | |
| 186 ret=(EVP_PKEY *)OPENSSL_malloc(sizeof(EVP_PKEY)); | |
| 187 if (ret == NULL) | |
| 188 { | |
| 189 EVPerr(EVP_F_EVP_PKEY_NEW,ERR_R_MALLOC_FAILURE); | |
| 190 return(NULL); | |
| 191 } | |
| 192 ret->type=EVP_PKEY_NONE; | |
| 193 ret->save_type=EVP_PKEY_NONE; | |
| 194 ret->references=1; | |
| 195 ret->ameth=NULL; | |
| 196 ret->engine=NULL; | |
| 197 ret->pkey.ptr=NULL; | |
| 198 ret->attributes=NULL; | |
| 199 ret->save_parameters=1; | |
| 200 return(ret); | |
| 201 } | |
| 202 | |
| 203 EVP_PKEY *EVP_PKEY_dup(EVP_PKEY *pkey) | |
| 204 { | |
| 205 CRYPTO_add(&pkey->references, 1, CRYPTO_LOCK_EVP_PKEY); | |
| 206 return pkey; | |
| 207 } | |
| 208 | |
| 209 /* Setup a public key ASN1 method and ENGINE from a NID or a string. | |
| 210 * If pkey is NULL just return 1 or 0 if the algorithm exists. | |
| 211 */ | |
| 212 | |
| 213 static int pkey_set_type(EVP_PKEY *pkey, int type, const char *str, int len) | |
| 214 { | |
| 215 const EVP_PKEY_ASN1_METHOD *ameth; | |
| 216 ENGINE *e = NULL; | |
| 217 if (pkey) | |
| 218 { | |
| 219 if (pkey->pkey.ptr) | |
| 220 EVP_PKEY_free_it(pkey); | |
| 221 /* If key type matches and a method exists then this | |
| 222 * lookup has succeeded once so just indicate success. | |
| 223 */ | |
| 224 if ((type == pkey->save_type) && pkey->ameth) | |
| 225 return 1; | |
| 226 #ifndef OPENSSL_NO_ENGINE | |
| 227 /* If we have an ENGINE release it */ | |
| 228 if (pkey->engine) | |
| 229 { | |
| 230 ENGINE_finish(pkey->engine); | |
| 231 pkey->engine = NULL; | |
| 232 } | |
| 233 #endif | |
| 234 } | |
| 235 if (str) | |
| 236 ameth = EVP_PKEY_asn1_find_str(&e, str, len); | |
| 237 else | |
| 238 ameth = EVP_PKEY_asn1_find(&e, type); | |
| 239 #ifndef OPENSSL_NO_ENGINE | |
| 240 if (!pkey && e) | |
| 241 ENGINE_finish(e); | |
| 242 #endif | |
| 243 if (!ameth) | |
| 244 { | |
| 245 EVPerr(EVP_F_PKEY_SET_TYPE, EVP_R_UNSUPPORTED_ALGORITHM); | |
| 246 return 0; | |
| 247 } | |
| 248 if (pkey) | |
| 249 { | |
| 250 pkey->ameth = ameth; | |
| 251 pkey->engine = e; | |
| 252 | |
| 253 pkey->type = pkey->ameth->pkey_id; | |
| 254 pkey->save_type=type; | |
| 255 } | |
| 256 return 1; | |
| 257 } | |
| 258 | |
| 259 int EVP_PKEY_set_type(EVP_PKEY *pkey, int type) | |
| 260 { | |
| 261 return pkey_set_type(pkey, type, NULL, -1); | |
| 262 } | |
| 263 | |
| 264 int EVP_PKEY_set_type_str(EVP_PKEY *pkey, const char *str, int len) | |
| 265 { | |
| 266 return pkey_set_type(pkey, EVP_PKEY_NONE, str, len); | |
| 267 } | |
| 268 | |
| 269 int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key) | |
| 270 { | |
| 271 if (!EVP_PKEY_set_type(pkey, type)) | |
| 272 return 0; | |
| 273 pkey->pkey.ptr=key; | |
| 274 return (key != NULL); | |
| 275 } | |
| 276 | |
| 277 void *EVP_PKEY_get0(EVP_PKEY *pkey) | |
| 278 { | |
| 279 return pkey->pkey.ptr; | |
| 280 } | |
| 281 | |
| 282 #ifndef OPENSSL_NO_RSA | |
| 283 int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key) | |
| 284 { | |
| 285 int ret = EVP_PKEY_assign_RSA(pkey, key); | |
| 286 if(ret) | |
| 287 RSA_up_ref(key); | |
| 288 return ret; | |
| 289 } | |
| 290 | |
| 291 RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey) | |
| 292 { | |
| 293 if(pkey->type != EVP_PKEY_RSA) { | |
| 294 EVPerr(EVP_F_EVP_PKEY_GET1_RSA, EVP_R_EXPECTING_AN_RSA_KEY); | |
| 295 return NULL; | |
| 296 } | |
| 297 RSA_up_ref(pkey->pkey.rsa); | |
| 298 return pkey->pkey.rsa; | |
| 299 } | |
| 300 #endif | |
| 301 | |
| 302 #ifndef OPENSSL_NO_DSA | |
| 303 int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key) | |
| 304 { | |
| 305 int ret = EVP_PKEY_assign_DSA(pkey, key); | |
| 306 if(ret) | |
| 307 DSA_up_ref(key); | |
| 308 return ret; | |
| 309 } | |
| 310 | |
| 311 DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey) | |
| 312 { | |
| 313 if(pkey->type != EVP_PKEY_DSA) { | |
| 314 EVPerr(EVP_F_EVP_PKEY_GET1_DSA, EVP_R_EXPECTING_A_DSA_KEY); | |
| 315 return NULL; | |
| 316 } | |
| 317 DSA_up_ref(pkey->pkey.dsa); | |
| 318 return pkey->pkey.dsa; | |
| 319 } | |
| 320 #endif | |
| 321 | |
| 322 #ifndef OPENSSL_NO_EC | |
| 323 | |
| 324 int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key) | |
| 325 { | |
| 326 int ret = EVP_PKEY_assign_EC_KEY(pkey,key); | |
| 327 if (ret) | |
| 328 EC_KEY_up_ref(key); | |
| 329 return ret; | |
| 330 } | |
| 331 | |
| 332 EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey) | |
| 333 { | |
| 334 if (pkey->type != EVP_PKEY_EC) | |
| 335 { | |
| 336 EVPerr(EVP_F_EVP_PKEY_GET1_EC_KEY, EVP_R_EXPECTING_A_EC_KEY); | |
| 337 return NULL; | |
| 338 } | |
| 339 EC_KEY_up_ref(pkey->pkey.ec); | |
| 340 return pkey->pkey.ec; | |
| 341 } | |
| 342 #endif | |
| 343 | |
| 344 | |
| 345 #ifndef OPENSSL_NO_DH | |
| 346 | |
| 347 int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key) | |
| 348 { | |
| 349 int ret = EVP_PKEY_assign_DH(pkey, key); | |
| 350 if(ret) | |
| 351 DH_up_ref(key); | |
| 352 return ret; | |
| 353 } | |
| 354 | |
| 355 DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey) | |
| 356 { | |
| 357 if(pkey->type != EVP_PKEY_DH) { | |
| 358 EVPerr(EVP_F_EVP_PKEY_GET1_DH, EVP_R_EXPECTING_A_DH_KEY); | |
| 359 return NULL; | |
| 360 } | |
| 361 DH_up_ref(pkey->pkey.dh); | |
| 362 return pkey->pkey.dh; | |
| 363 } | |
| 364 #endif | |
| 365 | |
| 366 int EVP_PKEY_type(int type) | |
| 367 { | |
| 368 int ret; | |
| 369 const EVP_PKEY_ASN1_METHOD *ameth; | |
| 370 ENGINE *e; | |
| 371 ameth = EVP_PKEY_asn1_find(&e, type); | |
| 372 if (ameth) | |
| 373 ret = ameth->pkey_id; | |
| 374 else | |
| 375 ret = NID_undef; | |
| 376 #ifndef OPENSSL_NO_ENGINE | |
| 377 if (e) | |
| 378 ENGINE_finish(e); | |
| 379 #endif | |
| 380 return ret; | |
| 381 } | |
| 382 | |
| 383 int EVP_PKEY_id(const EVP_PKEY *pkey) | |
| 384 { | |
| 385 return pkey->type; | |
| 386 } | |
| 387 | |
| 388 int EVP_PKEY_base_id(const EVP_PKEY *pkey) | |
| 389 { | |
| 390 return EVP_PKEY_type(pkey->type); | |
| 391 } | |
| 392 | |
| 393 void EVP_PKEY_free(EVP_PKEY *x) | |
| 394 { | |
| 395 int i; | |
| 396 | |
| 397 if (x == NULL) return; | |
| 398 | |
| 399 i=CRYPTO_add(&x->references,-1,CRYPTO_LOCK_EVP_PKEY); | |
| 400 #ifdef REF_PRINT | |
| 401 REF_PRINT("EVP_PKEY",x); | |
| 402 #endif | |
| 403 if (i > 0) return; | |
| 404 #ifdef REF_CHECK | |
| 405 if (i < 0) | |
| 406 { | |
| 407 fprintf(stderr,"EVP_PKEY_free, bad reference count\n"); | |
| 408 abort(); | |
| 409 } | |
| 410 #endif | |
| 411 EVP_PKEY_free_it(x); | |
| 412 if (x->attributes) | |
| 413 sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free); | |
| 414 OPENSSL_free(x); | |
| 415 } | |
| 416 | |
| 417 static void EVP_PKEY_free_it(EVP_PKEY *x) | |
| 418 { | |
| 419 if (x->ameth && x->ameth->pkey_free) | |
| 420 { | |
| 421 x->ameth->pkey_free(x); | |
| 422 x->pkey.ptr = NULL; | |
| 423 } | |
| 424 #ifndef OPENSSL_NO_ENGINE | |
| 425 if (x->engine) | |
| 426 { | |
| 427 ENGINE_finish(x->engine); | |
| 428 x->engine = NULL; | |
| 429 } | |
| 430 #endif | |
| 431 } | |
| 432 | |
| 433 static int unsup_alg(BIO *out, const EVP_PKEY *pkey, int indent, | |
| 434 const char *kstr) | |
| 435 { | |
| 436 BIO_indent(out, indent, 128); | |
| 437 BIO_printf(out, "%s algorithm \"%s\" unsupported\n", | |
| 438 kstr, OBJ_nid2ln(pkey->type)); | |
| 439 return 1; | |
| 440 } | |
| 441 | |
| 442 int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey, | |
| 443 int indent, ASN1_PCTX *pctx) | |
| 444 { | |
| 445 if (pkey->ameth && pkey->ameth->pub_print) | |
| 446 return pkey->ameth->pub_print(out, pkey, indent, pctx); | |
| 447 | |
| 448 return unsup_alg(out, pkey, indent, "Public Key"); | |
| 449 } | |
| 450 | |
| 451 int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey, | |
| 452 int indent, ASN1_PCTX *pctx) | |
| 453 { | |
| 454 if (pkey->ameth && pkey->ameth->priv_print) | |
| 455 return pkey->ameth->priv_print(out, pkey, indent, pctx); | |
| 456 | |
| 457 return unsup_alg(out, pkey, indent, "Private Key"); | |
| 458 } | |
| 459 | |
| 460 int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey, | |
| 461 int indent, ASN1_PCTX *pctx) | |
| 462 { | |
| 463 if (pkey->ameth && pkey->ameth->param_print) | |
| 464 return pkey->ameth->param_print(out, pkey, indent, pctx); | |
| 465 return unsup_alg(out, pkey, indent, "Parameters"); | |
| 466 } | |
| 467 | |
| 468 int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid) | |
| 469 { | |
| 470 if (!pkey->ameth || !pkey->ameth->pkey_ctrl) | |
| 471 return -2; | |
| 472 return pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID, | |
| 473 0, pnid); | |
| 474 } | |
| 475 | |
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Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master