1 /* $OpenBSD: dsa_ameth.c,v 1.17 2015/02/14 15:11:22 miod Exp $ */ 2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 3 * project 2006. 4 */ 5 /* ==================================================================== 6 * Copyright (c) 2006 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 #include <stdio.h> 60 61 #include <openssl/opensslconf.h> 62 63 #include <openssl/asn1.h> 64 #include <openssl/bn.h> 65 #include <openssl/dsa.h> 66 #include <openssl/err.h> 67 #include <openssl/x509.h> 68 69 #ifndef OPENSSL_NO_CMS 70 #include <openssl/cms.h> 71 #endif 72 73 #include "asn1_locl.h" 74 75 static int 76 dsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey) 77 { 78 const unsigned char *p, *pm; 79 int pklen, pmlen; 80 int ptype; 81 void *pval; 82 ASN1_STRING *pstr; 83 X509_ALGOR *palg; 84 ASN1_INTEGER *public_key = NULL; 85 86 DSA *dsa = NULL; 87 88 if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, &palg, pubkey)) 89 return 0; 90 X509_ALGOR_get0(NULL, &ptype, &pval, palg); 91 92 if (ptype == V_ASN1_SEQUENCE) { 93 pstr = pval; 94 pm = pstr->data; 95 pmlen = pstr->length; 96 97 if (!(dsa = d2i_DSAparams(NULL, &pm, pmlen))) { 98 DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_DECODE_ERROR); 99 goto err; 100 } 101 } else if (ptype == V_ASN1_NULL || ptype == V_ASN1_UNDEF) { 102 if (!(dsa = DSA_new())) { 103 DSAerr(DSA_F_DSA_PUB_DECODE, ERR_R_MALLOC_FAILURE); 104 goto err; 105 } 106 } else { 107 DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_PARAMETER_ENCODING_ERROR); 108 goto err; 109 } 110 111 if (!(public_key=d2i_ASN1_INTEGER(NULL, &p, pklen))) { 112 DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_DECODE_ERROR); 113 goto err; 114 } 115 116 if (!(dsa->pub_key = ASN1_INTEGER_to_BN(public_key, NULL))) { 117 DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_BN_DECODE_ERROR); 118 goto err; 119 } 120 121 ASN1_INTEGER_free(public_key); 122 EVP_PKEY_assign_DSA(pkey, dsa); 123 return 1; 124 125 err: 126 if (public_key) 127 ASN1_INTEGER_free(public_key); 128 DSA_free(dsa); 129 return 0; 130 } 131 132 static int 133 dsa_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey) 134 { 135 DSA *dsa; 136 void *pval = NULL; 137 int ptype; 138 unsigned char *penc = NULL; 139 int penclen; 140 141 dsa = pkey->pkey.dsa; 142 if (pkey->save_parameters && dsa->p && dsa->q && dsa->g) { 143 ASN1_STRING *str; 144 145 str = ASN1_STRING_new(); 146 if (str == NULL) { 147 DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE); 148 goto err; 149 } 150 str->length = i2d_DSAparams(dsa, &str->data); 151 if (str->length <= 0) { 152 DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE); 153 ASN1_STRING_free(str); 154 goto err; 155 } 156 pval = str; 157 ptype = V_ASN1_SEQUENCE; 158 } else 159 ptype = V_ASN1_UNDEF; 160 161 dsa->write_params = 0; 162 163 penclen = i2d_DSAPublicKey(dsa, &penc); 164 165 if (penclen <= 0) { 166 DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE); 167 goto err; 168 } 169 170 if (X509_PUBKEY_set0_param(pk, OBJ_nid2obj(EVP_PKEY_DSA), ptype, pval, 171 penc, penclen)) 172 return 1; 173 174 err: 175 free(penc); 176 ASN1_STRING_free(pval); 177 178 return 0; 179 } 180 181 /* In PKCS#8 DSA: you just get a private key integer and parameters in the 182 * AlgorithmIdentifier the pubkey must be recalculated. 183 */ 184 185 static int 186 dsa_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8) 187 { 188 const unsigned char *p, *pm; 189 int pklen, pmlen; 190 int ptype; 191 void *pval; 192 ASN1_STRING *pstr; 193 X509_ALGOR *palg; 194 ASN1_INTEGER *privkey = NULL; 195 BN_CTX *ctx = NULL; 196 STACK_OF(ASN1_TYPE) *ndsa = NULL; 197 DSA *dsa = NULL; 198 199 if (!PKCS8_pkey_get0(NULL, &p, &pklen, &palg, p8)) 200 return 0; 201 X509_ALGOR_get0(NULL, &ptype, &pval, palg); 202 203 /* Check for broken DSA PKCS#8, UGH! */ 204 if (*p == (V_ASN1_SEQUENCE|V_ASN1_CONSTRUCTED)) { 205 ASN1_TYPE *t1, *t2; 206 if (!(ndsa = d2i_ASN1_SEQUENCE_ANY(NULL, &p, pklen))) 207 goto decerr; 208 if (sk_ASN1_TYPE_num(ndsa) != 2) 209 goto decerr; 210 /* 211 * Handle Two broken types: 212 * SEQUENCE {parameters, priv_key} 213 * SEQUENCE {pub_key, priv_key} 214 */ 215 216 t1 = sk_ASN1_TYPE_value(ndsa, 0); 217 t2 = sk_ASN1_TYPE_value(ndsa, 1); 218 if (t1->type == V_ASN1_SEQUENCE) { 219 p8->broken = PKCS8_EMBEDDED_PARAM; 220 pval = t1->value.ptr; 221 } else if (ptype == V_ASN1_SEQUENCE) 222 p8->broken = PKCS8_NS_DB; 223 else 224 goto decerr; 225 226 if (t2->type != V_ASN1_INTEGER) 227 goto decerr; 228 229 privkey = t2->value.integer; 230 } else { 231 const unsigned char *q = p; 232 233 if (!(privkey=d2i_ASN1_INTEGER(NULL, &p, pklen))) 234 goto decerr; 235 if (privkey->type == V_ASN1_NEG_INTEGER) { 236 p8->broken = PKCS8_NEG_PRIVKEY; 237 ASN1_INTEGER_free(privkey); 238 if (!(privkey = d2i_ASN1_UINTEGER(NULL, &q, pklen))) 239 goto decerr; 240 } 241 if (ptype != V_ASN1_SEQUENCE) 242 goto decerr; 243 } 244 245 pstr = pval; 246 pm = pstr->data; 247 pmlen = pstr->length; 248 if (!(dsa = d2i_DSAparams(NULL, &pm, pmlen))) 249 goto decerr; 250 /* We have parameters now set private key */ 251 if (!(dsa->priv_key = ASN1_INTEGER_to_BN(privkey, NULL))) { 252 DSAerr(DSA_F_DSA_PRIV_DECODE,DSA_R_BN_ERROR); 253 goto dsaerr; 254 } 255 /* Calculate public key */ 256 if (!(dsa->pub_key = BN_new())) { 257 DSAerr(DSA_F_DSA_PRIV_DECODE, ERR_R_MALLOC_FAILURE); 258 goto dsaerr; 259 } 260 if (!(ctx = BN_CTX_new())) { 261 DSAerr(DSA_F_DSA_PRIV_DECODE, ERR_R_MALLOC_FAILURE); 262 goto dsaerr; 263 } 264 265 if (!BN_mod_exp(dsa->pub_key, dsa->g, dsa->priv_key, dsa->p, ctx)) { 266 DSAerr(DSA_F_DSA_PRIV_DECODE,DSA_R_BN_ERROR); 267 goto dsaerr; 268 } 269 270 EVP_PKEY_assign_DSA(pkey, dsa); 271 BN_CTX_free(ctx); 272 if (ndsa) 273 sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free); 274 else 275 ASN1_INTEGER_free(privkey); 276 277 return 1; 278 279 decerr: 280 DSAerr(DSA_F_DSA_PRIV_DECODE, EVP_R_DECODE_ERROR); 281 dsaerr: 282 BN_CTX_free(ctx); 283 if (ndsa) 284 sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free); 285 else 286 ASN1_INTEGER_free(privkey); 287 DSA_free(dsa); 288 return 0; 289 } 290 291 static int 292 dsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey) 293 { 294 ASN1_STRING *params = NULL; 295 ASN1_INTEGER *prkey = NULL; 296 unsigned char *dp = NULL; 297 int dplen; 298 299 params = ASN1_STRING_new(); 300 if (!params) { 301 DSAerr(DSA_F_DSA_PRIV_ENCODE, ERR_R_MALLOC_FAILURE); 302 goto err; 303 } 304 305 params->length = i2d_DSAparams(pkey->pkey.dsa, ¶ms->data); 306 if (params->length <= 0) { 307 DSAerr(DSA_F_DSA_PRIV_ENCODE, ERR_R_MALLOC_FAILURE); 308 goto err; 309 } 310 params->type = V_ASN1_SEQUENCE; 311 312 /* Get private key into integer */ 313 prkey = BN_to_ASN1_INTEGER(pkey->pkey.dsa->priv_key, NULL); 314 if (!prkey) { 315 DSAerr(DSA_F_DSA_PRIV_ENCODE, DSA_R_BN_ERROR); 316 goto err; 317 } 318 319 dplen = i2d_ASN1_INTEGER(prkey, &dp); 320 321 ASN1_INTEGER_free(prkey); 322 prkey = NULL; 323 324 if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_dsa), 0, V_ASN1_SEQUENCE, 325 params, dp, dplen)) 326 goto err; 327 328 return 1; 329 330 err: 331 free(dp); 332 ASN1_STRING_free(params); 333 ASN1_INTEGER_free(prkey); 334 return 0; 335 } 336 337 static int 338 int_dsa_size(const EVP_PKEY *pkey) 339 { 340 return DSA_size(pkey->pkey.dsa); 341 } 342 343 static int 344 dsa_bits(const EVP_PKEY *pkey) 345 { 346 return BN_num_bits(pkey->pkey.dsa->p); 347 } 348 349 static int 350 dsa_missing_parameters(const EVP_PKEY *pkey) 351 { 352 DSA *dsa; 353 354 dsa = pkey->pkey.dsa; 355 if (dsa->p == NULL || dsa->q == NULL || dsa->g == NULL) 356 return 1; 357 return 0; 358 } 359 360 static int 361 dsa_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from) 362 { 363 BIGNUM *a; 364 365 if ((a = BN_dup(from->pkey.dsa->p)) == NULL) 366 return 0; 367 BN_free(to->pkey.dsa->p); 368 to->pkey.dsa->p = a; 369 370 if ((a = BN_dup(from->pkey.dsa->q)) == NULL) 371 return 0; 372 BN_free(to->pkey.dsa->q); 373 to->pkey.dsa->q = a; 374 375 if ((a = BN_dup(from->pkey.dsa->g)) == NULL) 376 return 0; 377 BN_free(to->pkey.dsa->g); 378 to->pkey.dsa->g = a; 379 return 1; 380 } 381 382 static int 383 dsa_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b) 384 { 385 if (BN_cmp(a->pkey.dsa->p, b->pkey.dsa->p) || 386 BN_cmp(a->pkey.dsa->q, b->pkey.dsa->q) || 387 BN_cmp(a->pkey.dsa->g, b->pkey.dsa->g)) 388 return 0; 389 else 390 return 1; 391 } 392 393 static int 394 dsa_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b) 395 { 396 if (BN_cmp(b->pkey.dsa->pub_key, a->pkey.dsa->pub_key) != 0) 397 return 0; 398 else 399 return 1; 400 } 401 402 static void 403 int_dsa_free(EVP_PKEY *pkey) 404 { 405 DSA_free(pkey->pkey.dsa); 406 } 407 408 static void 409 update_buflen(const BIGNUM *b, size_t *pbuflen) 410 { 411 size_t i; 412 413 if (!b) 414 return; 415 if (*pbuflen < (i = (size_t)BN_num_bytes(b))) 416 *pbuflen = i; 417 } 418 419 static int 420 do_dsa_print(BIO *bp, const DSA *x, int off, int ptype) 421 { 422 unsigned char *m = NULL; 423 int ret = 0; 424 size_t buf_len = 0; 425 const char *ktype = NULL; 426 const BIGNUM *priv_key, *pub_key; 427 428 if (ptype == 2) 429 priv_key = x->priv_key; 430 else 431 priv_key = NULL; 432 433 if (ptype > 0) 434 pub_key = x->pub_key; 435 else 436 pub_key = NULL; 437 438 if (ptype == 2) 439 ktype = "Private-Key"; 440 else if (ptype == 1) 441 ktype = "Public-Key"; 442 else 443 ktype = "DSA-Parameters"; 444 445 update_buflen(x->p, &buf_len); 446 update_buflen(x->q, &buf_len); 447 update_buflen(x->g, &buf_len); 448 update_buflen(priv_key, &buf_len); 449 update_buflen(pub_key, &buf_len); 450 451 m = malloc(buf_len + 10); 452 if (m == NULL) { 453 DSAerr(DSA_F_DO_DSA_PRINT, ERR_R_MALLOC_FAILURE); 454 goto err; 455 } 456 457 if (priv_key) { 458 if (!BIO_indent(bp, off, 128)) 459 goto err; 460 if (BIO_printf(bp, "%s: (%d bit)\n", ktype, 461 BN_num_bits(x->p)) <= 0) 462 goto err; 463 } 464 465 if (!ASN1_bn_print(bp, "priv:", priv_key, m, off)) 466 goto err; 467 if (!ASN1_bn_print(bp, "pub: ", pub_key, m, off)) 468 goto err; 469 if (!ASN1_bn_print(bp, "P: ", x->p, m, off)) 470 goto err; 471 if (!ASN1_bn_print(bp, "Q: ", x->q, m, off)) 472 goto err; 473 if (!ASN1_bn_print(bp, "G: ", x->g, m, off)) 474 goto err; 475 ret = 1; 476 err: 477 free(m); 478 return(ret); 479 } 480 481 static int 482 dsa_param_decode(EVP_PKEY *pkey, const unsigned char **pder, int derlen) 483 { 484 DSA *dsa; 485 486 if (!(dsa = d2i_DSAparams(NULL, pder, derlen))) { 487 DSAerr(DSA_F_DSA_PARAM_DECODE, ERR_R_DSA_LIB); 488 return 0; 489 } 490 EVP_PKEY_assign_DSA(pkey, dsa); 491 return 1; 492 } 493 494 static int 495 dsa_param_encode(const EVP_PKEY *pkey, unsigned char **pder) 496 { 497 return i2d_DSAparams(pkey->pkey.dsa, pder); 498 } 499 500 static int 501 dsa_param_print(BIO *bp, const EVP_PKEY *pkey, int indent, ASN1_PCTX *ctx) 502 { 503 return do_dsa_print(bp, pkey->pkey.dsa, indent, 0); 504 } 505 506 static int 507 dsa_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent, ASN1_PCTX *ctx) 508 { 509 return do_dsa_print(bp, pkey->pkey.dsa, indent, 1); 510 } 511 512 static int 513 dsa_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent, ASN1_PCTX *ctx) 514 { 515 return do_dsa_print(bp, pkey->pkey.dsa, indent, 2); 516 } 517 518 static int 519 old_dsa_priv_decode(EVP_PKEY *pkey, const unsigned char **pder, int derlen) 520 { 521 DSA *dsa; 522 523 if (!(dsa = d2i_DSAPrivateKey (NULL, pder, derlen))) { 524 DSAerr(DSA_F_OLD_DSA_PRIV_DECODE, ERR_R_DSA_LIB); 525 return 0; 526 } 527 EVP_PKEY_assign_DSA(pkey, dsa); 528 return 1; 529 } 530 531 static int 532 old_dsa_priv_encode(const EVP_PKEY *pkey, unsigned char **pder) 533 { 534 return i2d_DSAPrivateKey(pkey->pkey.dsa, pder); 535 } 536 537 static int 538 dsa_sig_print(BIO *bp, const X509_ALGOR *sigalg, const ASN1_STRING *sig, 539 int indent, ASN1_PCTX *pctx) 540 { 541 DSA_SIG *dsa_sig; 542 const unsigned char *p; 543 544 if (!sig) { 545 if (BIO_puts(bp, "\n") <= 0) 546 return 0; 547 else 548 return 1; 549 } 550 p = sig->data; 551 dsa_sig = d2i_DSA_SIG(NULL, &p, sig->length); 552 if (dsa_sig) { 553 int rv = 0; 554 size_t buf_len = 0; 555 unsigned char *m = NULL; 556 557 update_buflen(dsa_sig->r, &buf_len); 558 update_buflen(dsa_sig->s, &buf_len); 559 m = malloc(buf_len + 10); 560 if (m == NULL) { 561 DSAerr(DSA_F_DSA_SIG_PRINT, ERR_R_MALLOC_FAILURE); 562 goto err; 563 } 564 565 if (BIO_write(bp, "\n", 1) != 1) 566 goto err; 567 568 if (!ASN1_bn_print(bp, "r: ", dsa_sig->r, m, indent)) 569 goto err; 570 if (!ASN1_bn_print(bp, "s: ", dsa_sig->s, m, indent)) 571 goto err; 572 rv = 1; 573 err: 574 free(m); 575 DSA_SIG_free(dsa_sig); 576 return rv; 577 } 578 return X509_signature_dump(bp, sig, indent); 579 } 580 581 static int 582 dsa_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2) 583 { 584 switch (op) { 585 case ASN1_PKEY_CTRL_PKCS7_SIGN: 586 if (arg1 == 0) { 587 int snid, hnid; 588 X509_ALGOR *alg1, *alg2; 589 590 PKCS7_SIGNER_INFO_get0_algs(arg2, NULL, &alg1, &alg2); 591 if (alg1 == NULL || alg1->algorithm == NULL) 592 return -1; 593 hnid = OBJ_obj2nid(alg1->algorithm); 594 if (hnid == NID_undef) 595 return -1; 596 if (!OBJ_find_sigid_by_algs(&snid, hnid, 597 EVP_PKEY_id(pkey))) 598 return -1; 599 X509_ALGOR_set0(alg2, OBJ_nid2obj(snid), V_ASN1_UNDEF, 600 0); 601 } 602 return 1; 603 #ifndef OPENSSL_NO_CMS 604 case ASN1_PKEY_CTRL_CMS_SIGN: 605 if (arg1 == 0) { 606 int snid, hnid; 607 X509_ALGOR *alg1, *alg2; 608 609 CMS_SignerInfo_get0_algs(arg2, NULL, NULL, &alg1, &alg2); 610 if (alg1 == NULL || alg1->algorithm == NULL) 611 return -1; 612 hnid = OBJ_obj2nid(alg1->algorithm); 613 if (hnid == NID_undef) 614 return -1; 615 if (!OBJ_find_sigid_by_algs(&snid, hnid, 616 EVP_PKEY_id(pkey))) 617 return -1; 618 X509_ALGOR_set0(alg2, OBJ_nid2obj(snid), V_ASN1_UNDEF, 619 0); 620 } 621 return 1; 622 #endif 623 624 case ASN1_PKEY_CTRL_DEFAULT_MD_NID: 625 *(int *)arg2 = NID_sha1; 626 return 2; 627 628 default: 629 return -2; 630 } 631 } 632 633 /* NB these are sorted in pkey_id order, lowest first */ 634 635 const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[] = { 636 { 637 .pkey_id = EVP_PKEY_DSA2, 638 .pkey_base_id = EVP_PKEY_DSA, 639 .pkey_flags = ASN1_PKEY_ALIAS 640 }, 641 642 { 643 .pkey_id = EVP_PKEY_DSA1, 644 .pkey_base_id = EVP_PKEY_DSA, 645 .pkey_flags = ASN1_PKEY_ALIAS 646 }, 647 648 { 649 .pkey_id = EVP_PKEY_DSA4, 650 .pkey_base_id = EVP_PKEY_DSA, 651 .pkey_flags = ASN1_PKEY_ALIAS 652 }, 653 654 { 655 .pkey_id = EVP_PKEY_DSA3, 656 .pkey_base_id = EVP_PKEY_DSA, 657 .pkey_flags = ASN1_PKEY_ALIAS 658 }, 659 660 { 661 .pkey_id = EVP_PKEY_DSA, 662 .pkey_base_id = EVP_PKEY_DSA, 663 664 .pem_str = "DSA", 665 .info = "OpenSSL DSA method", 666 667 .pub_decode = dsa_pub_decode, 668 .pub_encode = dsa_pub_encode, 669 .pub_cmp = dsa_pub_cmp, 670 .pub_print = dsa_pub_print, 671 672 .priv_decode = dsa_priv_decode, 673 .priv_encode = dsa_priv_encode, 674 .priv_print = dsa_priv_print, 675 676 .pkey_size = int_dsa_size, 677 .pkey_bits = dsa_bits, 678 679 .param_decode = dsa_param_decode, 680 .param_encode = dsa_param_encode, 681 .param_missing = dsa_missing_parameters, 682 .param_copy = dsa_copy_parameters, 683 .param_cmp = dsa_cmp_parameters, 684 .param_print = dsa_param_print, 685 .sig_print = dsa_sig_print, 686 687 .pkey_free = int_dsa_free, 688 .pkey_ctrl = dsa_pkey_ctrl, 689 .old_priv_decode = old_dsa_priv_decode, 690 .old_priv_encode = old_dsa_priv_encode 691 } 692 }; 693