1 /* $OpenBSD: x_pubkey.c,v 1.32 2022/05/24 19:59:14 tb Exp $ */ 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 61 #include <openssl/opensslconf.h> 62 63 #include <openssl/asn1t.h> 64 #include <openssl/err.h> 65 #include <openssl/x509.h> 66 67 #ifndef OPENSSL_NO_DSA 68 #include <openssl/dsa.h> 69 #endif 70 #ifndef OPENSSL_NO_RSA 71 #include <openssl/rsa.h> 72 #endif 73 74 #include "asn1_locl.h" 75 #include "evp_locl.h" 76 #include "x509_lcl.h" 77 78 /* Minor tweak to operation: free up EVP_PKEY */ 79 static int 80 pubkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg) 81 { 82 if (operation == ASN1_OP_FREE_POST) { 83 X509_PUBKEY *pubkey = (X509_PUBKEY *)*pval; 84 EVP_PKEY_free(pubkey->pkey); 85 } 86 return 1; 87 } 88 89 static const ASN1_AUX X509_PUBKEY_aux = { 90 .asn1_cb = pubkey_cb, 91 }; 92 static const ASN1_TEMPLATE X509_PUBKEY_seq_tt[] = { 93 { 94 .offset = offsetof(X509_PUBKEY, algor), 95 .field_name = "algor", 96 .item = &X509_ALGOR_it, 97 }, 98 { 99 .offset = offsetof(X509_PUBKEY, public_key), 100 .field_name = "public_key", 101 .item = &ASN1_BIT_STRING_it, 102 }, 103 }; 104 105 const ASN1_ITEM X509_PUBKEY_it = { 106 .itype = ASN1_ITYPE_SEQUENCE, 107 .utype = V_ASN1_SEQUENCE, 108 .templates = X509_PUBKEY_seq_tt, 109 .tcount = sizeof(X509_PUBKEY_seq_tt) / sizeof(ASN1_TEMPLATE), 110 .funcs = &X509_PUBKEY_aux, 111 .size = sizeof(X509_PUBKEY), 112 .sname = "X509_PUBKEY", 113 }; 114 115 X509_PUBKEY * 116 d2i_X509_PUBKEY(X509_PUBKEY **a, const unsigned char **in, long len) 117 { 118 return (X509_PUBKEY *)ASN1_item_d2i((ASN1_VALUE **)a, in, len, 119 &X509_PUBKEY_it); 120 } 121 122 int 123 i2d_X509_PUBKEY(X509_PUBKEY *a, unsigned char **out) 124 { 125 return ASN1_item_i2d((ASN1_VALUE *)a, out, &X509_PUBKEY_it); 126 } 127 128 X509_PUBKEY * 129 X509_PUBKEY_new(void) 130 { 131 return (X509_PUBKEY *)ASN1_item_new(&X509_PUBKEY_it); 132 } 133 134 void 135 X509_PUBKEY_free(X509_PUBKEY *a) 136 { 137 ASN1_item_free((ASN1_VALUE *)a, &X509_PUBKEY_it); 138 } 139 140 int 141 X509_PUBKEY_set(X509_PUBKEY **x, EVP_PKEY *pkey) 142 { 143 X509_PUBKEY *pk = NULL; 144 145 if (x == NULL) 146 return (0); 147 if ((pk = X509_PUBKEY_new()) == NULL) 148 goto error; 149 150 if (pkey->ameth) { 151 if (pkey->ameth->pub_encode) { 152 if (!pkey->ameth->pub_encode(pk, pkey)) { 153 X509error(X509_R_PUBLIC_KEY_ENCODE_ERROR); 154 goto error; 155 } 156 } else { 157 X509error(X509_R_METHOD_NOT_SUPPORTED); 158 goto error; 159 } 160 } else { 161 X509error(X509_R_UNSUPPORTED_ALGORITHM); 162 goto error; 163 } 164 165 if (*x != NULL) 166 X509_PUBKEY_free(*x); 167 168 *x = pk; 169 170 return 1; 171 172 error: 173 if (pk != NULL) 174 X509_PUBKEY_free(pk); 175 return 0; 176 } 177 178 EVP_PKEY * 179 X509_PUBKEY_get0(X509_PUBKEY *key) 180 { 181 EVP_PKEY *ret = NULL; 182 183 if (key == NULL) 184 goto error; 185 186 if (key->pkey != NULL) 187 return key->pkey; 188 189 if (key->public_key == NULL) 190 goto error; 191 192 if ((ret = EVP_PKEY_new()) == NULL) { 193 X509error(ERR_R_MALLOC_FAILURE); 194 goto error; 195 } 196 197 if (!EVP_PKEY_set_type(ret, OBJ_obj2nid(key->algor->algorithm))) { 198 X509error(X509_R_UNSUPPORTED_ALGORITHM); 199 goto error; 200 } 201 202 if (ret->ameth->pub_decode) { 203 if (!ret->ameth->pub_decode(ret, key)) { 204 X509error(X509_R_PUBLIC_KEY_DECODE_ERROR); 205 goto error; 206 } 207 } else { 208 X509error(X509_R_METHOD_NOT_SUPPORTED); 209 goto error; 210 } 211 212 /* Check to see if another thread set key->pkey first */ 213 CRYPTO_w_lock(CRYPTO_LOCK_EVP_PKEY); 214 if (key->pkey) { 215 CRYPTO_w_unlock(CRYPTO_LOCK_EVP_PKEY); 216 EVP_PKEY_free(ret); 217 ret = key->pkey; 218 } else { 219 key->pkey = ret; 220 CRYPTO_w_unlock(CRYPTO_LOCK_EVP_PKEY); 221 } 222 223 return ret; 224 225 error: 226 EVP_PKEY_free(ret); 227 return (NULL); 228 } 229 230 EVP_PKEY * 231 X509_PUBKEY_get(X509_PUBKEY *key) 232 { 233 EVP_PKEY *pkey; 234 235 if ((pkey = X509_PUBKEY_get0(key)) == NULL) 236 return (NULL); 237 238 CRYPTO_add(&pkey->references, 1, CRYPTO_LOCK_EVP_PKEY); 239 240 return pkey; 241 } 242 243 /* 244 * Decode an X509_PUBKEY into the specified key type. 245 */ 246 static int 247 pubkey_ex_d2i(int pkey_type, ASN1_VALUE **pval, const unsigned char **in, 248 long len, const ASN1_ITEM *it) 249 { 250 const ASN1_EXTERN_FUNCS *ef = it->funcs; 251 const unsigned char *p = *in; 252 X509_PUBKEY *xpk = NULL; 253 ASN1_VALUE *key = NULL; 254 EVP_PKEY *pkey = NULL; 255 int ret = 0; 256 257 if ((xpk = d2i_X509_PUBKEY(NULL, &p, len)) == NULL) 258 goto err; 259 if ((pkey = X509_PUBKEY_get(xpk)) == NULL) 260 goto err; 261 262 switch (pkey_type) { 263 case EVP_PKEY_NONE: 264 key = (ASN1_VALUE *)pkey; 265 pkey = NULL; 266 break; 267 268 case EVP_PKEY_DSA: 269 key = (ASN1_VALUE *)EVP_PKEY_get1_DSA(pkey); 270 break; 271 272 case EVP_PKEY_RSA: 273 key = (ASN1_VALUE *)EVP_PKEY_get1_RSA(pkey); 274 break; 275 276 case EVP_PKEY_EC: 277 key = (ASN1_VALUE *)EVP_PKEY_get1_EC_KEY(pkey); 278 break; 279 280 default: 281 goto err; 282 } 283 284 if (key == NULL) 285 goto err; 286 287 ef->asn1_ex_free(pval, it); 288 289 *pval = key; 290 *in = p; 291 ret = 1; 292 293 err: 294 EVP_PKEY_free(pkey); 295 X509_PUBKEY_free(xpk); 296 297 return ret; 298 } 299 300 /* 301 * Encode the specified key type into an X509_PUBKEY. 302 */ 303 static int 304 pubkey_ex_i2d(int pkey_type, ASN1_VALUE **pval, unsigned char **out, 305 const ASN1_ITEM *it) 306 { 307 X509_PUBKEY *xpk = NULL; 308 EVP_PKEY *pkey, *pktmp; 309 int ret = -1; 310 311 if ((pkey = pktmp = EVP_PKEY_new()) == NULL) 312 goto err; 313 314 switch (pkey_type) { 315 case EVP_PKEY_NONE: 316 pkey = (EVP_PKEY *)*pval; 317 break; 318 319 case EVP_PKEY_DSA: 320 if (!EVP_PKEY_set1_DSA(pkey, (DSA *)*pval)) 321 goto err; 322 break; 323 324 case EVP_PKEY_RSA: 325 if (!EVP_PKEY_set1_RSA(pkey, (RSA *)*pval)) 326 goto err; 327 break; 328 329 case EVP_PKEY_EC: 330 if (!EVP_PKEY_set1_EC_KEY(pkey, (EC_KEY*)*pval)) 331 goto err; 332 break; 333 334 default: 335 goto err; 336 } 337 338 if (!X509_PUBKEY_set(&xpk, pkey)) 339 goto err; 340 341 ret = i2d_X509_PUBKEY(xpk, out); 342 343 err: 344 EVP_PKEY_free(pktmp); 345 X509_PUBKEY_free(xpk); 346 347 return ret; 348 } 349 350 static int 351 pkey_pubkey_ex_new(ASN1_VALUE **pval, const ASN1_ITEM *it) 352 { 353 if ((*pval = (ASN1_VALUE *)EVP_PKEY_new()) == NULL) 354 return 0; 355 356 return 1; 357 } 358 359 static void 360 pkey_pubkey_ex_free(ASN1_VALUE **pval, const ASN1_ITEM *it) 361 { 362 EVP_PKEY_free((EVP_PKEY *)*pval); 363 *pval = NULL; 364 } 365 366 static int 367 pkey_pubkey_ex_d2i(ASN1_VALUE **pval, const unsigned char **in, long len, 368 const ASN1_ITEM *it, int tag, int aclass, char opt, ASN1_TLC *ctx) 369 { 370 return pubkey_ex_d2i(EVP_PKEY_NONE, pval, in, len, it); 371 } 372 373 static int 374 pkey_pubkey_ex_i2d(ASN1_VALUE **pval, unsigned char **out, const ASN1_ITEM *it, 375 int tag, int aclass) 376 { 377 return pubkey_ex_i2d(EVP_PKEY_NONE, pval, out, it); 378 } 379 380 const ASN1_EXTERN_FUNCS pkey_pubkey_asn1_ff = { 381 .app_data = NULL, 382 .asn1_ex_new = pkey_pubkey_ex_new, 383 .asn1_ex_free = pkey_pubkey_ex_free, 384 .asn1_ex_clear = NULL, 385 .asn1_ex_d2i = pkey_pubkey_ex_d2i, 386 .asn1_ex_i2d = pkey_pubkey_ex_i2d, 387 .asn1_ex_print = NULL, 388 }; 389 390 const ASN1_ITEM EVP_PKEY_PUBKEY_it = { 391 .itype = ASN1_ITYPE_EXTERN, 392 .utype = 0, 393 .templates = NULL, 394 .tcount = 0, 395 .funcs = &pkey_pubkey_asn1_ff, 396 .size = 0, 397 .sname = NULL, 398 }; 399 400 EVP_PKEY * 401 d2i_PUBKEY(EVP_PKEY **pkey, const unsigned char **in, long len) 402 { 403 return (EVP_PKEY *)ASN1_item_d2i((ASN1_VALUE **)pkey, in, len, 404 &EVP_PKEY_PUBKEY_it); 405 } 406 407 int 408 i2d_PUBKEY(EVP_PKEY *pkey, unsigned char **out) 409 { 410 return ASN1_item_i2d((ASN1_VALUE *)pkey, out, &EVP_PKEY_PUBKEY_it); 411 } 412 413 EVP_PKEY * 414 d2i_PUBKEY_bio(BIO *bp, EVP_PKEY **pkey) 415 { 416 return (EVP_PKEY *)ASN1_item_d2i_bio(&EVP_PKEY_PUBKEY_it, bp, 417 (ASN1_VALUE **)pkey); 418 } 419 420 int 421 i2d_PUBKEY_bio(BIO *bp, EVP_PKEY *pkey) 422 { 423 return ASN1_item_i2d_bio(&EVP_PKEY_PUBKEY_it, bp, (ASN1_VALUE *)pkey); 424 } 425 426 EVP_PKEY * 427 d2i_PUBKEY_fp(FILE *fp, EVP_PKEY **pkey) 428 { 429 return (EVP_PKEY *)ASN1_item_d2i_fp(&EVP_PKEY_PUBKEY_it, fp, 430 (ASN1_VALUE **)pkey); 431 } 432 433 int 434 i2d_PUBKEY_fp(FILE *fp, EVP_PKEY *pkey) 435 { 436 return ASN1_item_i2d_fp(&EVP_PKEY_PUBKEY_it, fp, (ASN1_VALUE *)pkey); 437 } 438 439 /* 440 * The following are equivalents but which return RSA and DSA keys. 441 */ 442 #ifndef OPENSSL_NO_RSA 443 444 static int 445 rsa_pubkey_ex_new(ASN1_VALUE **pval, const ASN1_ITEM *it) 446 { 447 if ((*pval = (ASN1_VALUE *)RSA_new()) == NULL) 448 return 0; 449 450 return 1; 451 } 452 453 static void 454 rsa_pubkey_ex_free(ASN1_VALUE **pval, const ASN1_ITEM *it) 455 { 456 RSA_free((RSA *)*pval); 457 *pval = NULL; 458 } 459 460 static int 461 rsa_pubkey_ex_d2i(ASN1_VALUE **pval, const unsigned char **in, long len, 462 const ASN1_ITEM *it, int tag, int aclass, char opt, ASN1_TLC *ctx) 463 { 464 return pubkey_ex_d2i(EVP_PKEY_RSA, pval, in, len, it); 465 } 466 467 static int 468 rsa_pubkey_ex_i2d(ASN1_VALUE **pval, unsigned char **out, const ASN1_ITEM *it, 469 int tag, int aclass) 470 { 471 return pubkey_ex_i2d(EVP_PKEY_RSA, pval, out, it); 472 } 473 474 const ASN1_EXTERN_FUNCS rsa_pubkey_asn1_ff = { 475 .app_data = NULL, 476 .asn1_ex_new = rsa_pubkey_ex_new, 477 .asn1_ex_free = rsa_pubkey_ex_free, 478 .asn1_ex_clear = NULL, 479 .asn1_ex_d2i = rsa_pubkey_ex_d2i, 480 .asn1_ex_i2d = rsa_pubkey_ex_i2d, 481 .asn1_ex_print = NULL, 482 }; 483 484 const ASN1_ITEM RSA_PUBKEY_it = { 485 .itype = ASN1_ITYPE_EXTERN, 486 .utype = 0, 487 .templates = NULL, 488 .tcount = 0, 489 .funcs = &rsa_pubkey_asn1_ff, 490 .size = 0, 491 .sname = NULL, 492 }; 493 494 RSA * 495 d2i_RSA_PUBKEY(RSA **rsa, const unsigned char **in, long len) 496 { 497 return (RSA *)ASN1_item_d2i((ASN1_VALUE **)rsa, in, len, 498 &RSA_PUBKEY_it); 499 } 500 501 int 502 i2d_RSA_PUBKEY(RSA *rsa, unsigned char **out) 503 { 504 return ASN1_item_i2d((ASN1_VALUE *)rsa, out, &RSA_PUBKEY_it); 505 } 506 507 RSA * 508 d2i_RSA_PUBKEY_bio(BIO *bp, RSA **rsa) 509 { 510 return (RSA *)ASN1_item_d2i_bio(&RSA_PUBKEY_it, bp, (ASN1_VALUE **)rsa); 511 } 512 513 int 514 i2d_RSA_PUBKEY_bio(BIO *bp, RSA *rsa) 515 { 516 return ASN1_item_i2d_bio(&RSA_PUBKEY_it, bp, (ASN1_VALUE *)rsa); 517 } 518 519 RSA * 520 d2i_RSA_PUBKEY_fp(FILE *fp, RSA **rsa) 521 { 522 return (RSA *)ASN1_item_d2i_fp(&RSA_PUBKEY_it, fp, (ASN1_VALUE **)rsa); 523 } 524 525 int 526 i2d_RSA_PUBKEY_fp(FILE *fp, RSA *rsa) 527 { 528 return ASN1_item_i2d_fp(&RSA_PUBKEY_it, fp, (ASN1_VALUE *)rsa); 529 } 530 #endif 531 532 #ifndef OPENSSL_NO_DSA 533 534 static int 535 dsa_pubkey_ex_new(ASN1_VALUE **pval, const ASN1_ITEM *it) 536 { 537 if ((*pval = (ASN1_VALUE *)DSA_new()) == NULL) 538 return 0; 539 540 return 1; 541 } 542 543 static void 544 dsa_pubkey_ex_free(ASN1_VALUE **pval, const ASN1_ITEM *it) 545 { 546 DSA_free((DSA *)*pval); 547 *pval = NULL; 548 } 549 550 static int 551 dsa_pubkey_ex_d2i(ASN1_VALUE **pval, const unsigned char **in, long len, 552 const ASN1_ITEM *it, int tag, int aclass, char opt, ASN1_TLC *ctx) 553 { 554 return pubkey_ex_d2i(EVP_PKEY_DSA, pval, in, len, it); 555 } 556 557 static int 558 dsa_pubkey_ex_i2d(ASN1_VALUE **pval, unsigned char **out, const ASN1_ITEM *it, 559 int tag, int aclass) 560 { 561 return pubkey_ex_i2d(EVP_PKEY_DSA, pval, out, it); 562 } 563 564 const ASN1_EXTERN_FUNCS dsa_pubkey_asn1_ff = { 565 .app_data = NULL, 566 .asn1_ex_new = dsa_pubkey_ex_new, 567 .asn1_ex_free = dsa_pubkey_ex_free, 568 .asn1_ex_clear = NULL, 569 .asn1_ex_d2i = dsa_pubkey_ex_d2i, 570 .asn1_ex_i2d = dsa_pubkey_ex_i2d, 571 .asn1_ex_print = NULL, 572 }; 573 574 const ASN1_ITEM DSA_PUBKEY_it = { 575 .itype = ASN1_ITYPE_EXTERN, 576 .utype = 0, 577 .templates = NULL, 578 .tcount = 0, 579 .funcs = &dsa_pubkey_asn1_ff, 580 .size = 0, 581 .sname = NULL, 582 }; 583 584 DSA * 585 d2i_DSA_PUBKEY(DSA **dsa, const unsigned char **in, long len) 586 { 587 return (DSA *)ASN1_item_d2i((ASN1_VALUE **)dsa, in, len, 588 &DSA_PUBKEY_it); 589 } 590 591 int 592 i2d_DSA_PUBKEY(DSA *dsa, unsigned char **out) 593 { 594 return ASN1_item_i2d((ASN1_VALUE *)dsa, out, &DSA_PUBKEY_it); 595 } 596 597 DSA * 598 d2i_DSA_PUBKEY_bio(BIO *bp, DSA **dsa) 599 { 600 return (DSA *)ASN1_item_d2i_bio(&DSA_PUBKEY_it, bp, (ASN1_VALUE **)dsa); 601 } 602 603 int 604 i2d_DSA_PUBKEY_bio(BIO *bp, DSA *dsa) 605 { 606 return ASN1_item_i2d_bio(&DSA_PUBKEY_it, bp, (ASN1_VALUE *)dsa); 607 } 608 609 DSA * 610 d2i_DSA_PUBKEY_fp(FILE *fp, DSA **dsa) 611 { 612 return (DSA *)ASN1_item_d2i_fp(&DSA_PUBKEY_it, fp, (ASN1_VALUE **)dsa); 613 } 614 615 int 616 i2d_DSA_PUBKEY_fp(FILE *fp, DSA *dsa) 617 { 618 return ASN1_item_i2d_fp(&DSA_PUBKEY_it, fp, (ASN1_VALUE *)dsa); 619 } 620 621 #endif 622 623 #ifndef OPENSSL_NO_EC 624 625 static int 626 ec_pubkey_ex_new(ASN1_VALUE **pval, const ASN1_ITEM *it) 627 { 628 if ((*pval = (ASN1_VALUE *)EC_KEY_new()) == NULL) 629 return 0; 630 631 return 1; 632 } 633 634 static void 635 ec_pubkey_ex_free(ASN1_VALUE **pval, const ASN1_ITEM *it) 636 { 637 EC_KEY_free((EC_KEY *)*pval); 638 *pval = NULL; 639 } 640 641 static int 642 ec_pubkey_ex_d2i(ASN1_VALUE **pval, const unsigned char **in, long len, 643 const ASN1_ITEM *it, int tag, int aclass, char opt, ASN1_TLC *ctx) 644 { 645 return pubkey_ex_d2i(EVP_PKEY_EC, pval, in, len, it); 646 } 647 648 static int 649 ec_pubkey_ex_i2d(ASN1_VALUE **pval, unsigned char **out, const ASN1_ITEM *it, 650 int tag, int aclass) 651 { 652 return pubkey_ex_i2d(EVP_PKEY_EC, pval, out, it); 653 } 654 655 const ASN1_EXTERN_FUNCS ec_pubkey_asn1_ff = { 656 .app_data = NULL, 657 .asn1_ex_new = ec_pubkey_ex_new, 658 .asn1_ex_free = ec_pubkey_ex_free, 659 .asn1_ex_clear = NULL, 660 .asn1_ex_d2i = ec_pubkey_ex_d2i, 661 .asn1_ex_i2d = ec_pubkey_ex_i2d, 662 .asn1_ex_print = NULL, 663 }; 664 665 const ASN1_ITEM EC_PUBKEY_it = { 666 .itype = ASN1_ITYPE_EXTERN, 667 .utype = 0, 668 .templates = NULL, 669 .tcount = 0, 670 .funcs = &ec_pubkey_asn1_ff, 671 .size = 0, 672 .sname = NULL, 673 }; 674 675 EC_KEY * 676 d2i_EC_PUBKEY(EC_KEY **ec, const unsigned char **in, long len) 677 { 678 return (EC_KEY *)ASN1_item_d2i((ASN1_VALUE **)ec, in, len, 679 &EC_PUBKEY_it); 680 } 681 682 int 683 i2d_EC_PUBKEY(EC_KEY *ec, unsigned char **out) 684 { 685 return ASN1_item_i2d((ASN1_VALUE *)ec, out, &EC_PUBKEY_it); 686 } 687 688 EC_KEY * 689 d2i_EC_PUBKEY_bio(BIO *bp, EC_KEY **ec) 690 { 691 return (EC_KEY *)ASN1_item_d2i_bio(&EC_PUBKEY_it, bp, (ASN1_VALUE **)ec); 692 } 693 694 int 695 i2d_EC_PUBKEY_bio(BIO *bp, EC_KEY *ec) 696 { 697 return ASN1_item_i2d_bio(&EC_PUBKEY_it, bp, (ASN1_VALUE *)ec); 698 } 699 700 EC_KEY * 701 d2i_EC_PUBKEY_fp(FILE *fp, EC_KEY **ec) 702 { 703 return (EC_KEY *)ASN1_item_d2i_fp(&EC_PUBKEY_it, fp, (ASN1_VALUE **)ec); 704 } 705 706 int 707 i2d_EC_PUBKEY_fp(FILE *fp, EC_KEY *ec) 708 { 709 return ASN1_item_i2d_fp(&EC_PUBKEY_it, fp, (ASN1_VALUE *)ec); 710 } 711 #endif 712 713 int 714 X509_PUBKEY_set0_param(X509_PUBKEY *pub, ASN1_OBJECT *aobj, int ptype, 715 void *pval, unsigned char *penc, int penclen) 716 { 717 if (!X509_ALGOR_set0(pub->algor, aobj, ptype, pval)) 718 return 0; 719 720 if (penc == NULL) 721 return 1; 722 723 ASN1_STRING_set0(pub->public_key, penc, penclen); 724 725 return asn1_abs_set_unused_bits(pub->public_key, 0); 726 } 727 728 int 729 X509_PUBKEY_get0_param(ASN1_OBJECT **ppkalg, const unsigned char **pk, 730 int *ppklen, X509_ALGOR **pa, X509_PUBKEY *pub) 731 { 732 if (ppkalg) 733 *ppkalg = pub->algor->algorithm; 734 if (pk) { 735 *pk = pub->public_key->data; 736 *ppklen = pub->public_key->length; 737 } 738 if (pa) 739 *pa = pub->algor; 740 return 1; 741 } 742