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| 1 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL | |
| 2 * project 2006. | |
| 3 */ | |
| 4 /* ==================================================================== | |
| 5 * Copyright (c) 2006 The OpenSSL Project. All rights reserved. | |
| 6 * | |
| 7 * Redistribution and use in source and binary forms, with or without | |
| 8 * modification, are permitted provided that the following conditions | |
| 9 * are met: | |
| 10 * | |
| 11 * 1. Redistributions of source code must retain the above copyright | |
| 12 * notice, this list of conditions and the following disclaimer. | |
| 13 * | |
| 14 * 2. Redistributions in binary form must reproduce the above copyright | |
| 15 * notice, this list of conditions and the following disclaimer in | |
| 16 * the documentation and/or other materials provided with the | |
| 17 * distribution. | |
| 18 * | |
| 19 * 3. All advertising materials mentioning features or use of this | |
| 20 * software must display the following acknowledgment: | |
| 21 * "This product includes software developed by the OpenSSL Project | |
| 22 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
| 23 * | |
| 24 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
| 25 * endorse or promote products derived from this software without | |
| 26 * prior written permission. For written permission, please contact | |
| 27 * licensing@OpenSSL.org. | |
| 28 * | |
| 29 * 5. Products derived from this software may not be called "OpenSSL" | |
| 30 * nor may "OpenSSL" appear in their names without prior written | |
| 31 * permission of the OpenSSL Project. | |
| 32 * | |
| 33 * 6. Redistributions of any form whatsoever must retain the following | |
| 34 * acknowledgment: | |
| 35 * "This product includes software developed by the OpenSSL Project | |
| 36 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
| 37 * | |
| 38 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
| 39 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 41 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
| 42 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 44 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 45 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| 47 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 48 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
| 49 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 50 * ==================================================================== | |
| 51 * | |
| 52 * This product includes cryptographic software written by Eric Young | |
| 53 * (eay@cryptsoft.com). This product includes software written by Tim | |
| 54 * Hudson (tjh@cryptsoft.com). | |
| 55 * | |
| 56 */ | |
| 57 | |
| 58 #include <stdio.h> | |
| 59 #include "cryptlib.h" | |
| 60 #include <openssl/x509.h> | |
| 61 #include <openssl/asn1.h> | |
| 62 #include <openssl/dsa.h> | |
| 63 #include <openssl/bn.h> | |
| 64 #ifndef OPENSSL_NO_CMS | |
| 65 #include <openssl/cms.h> | |
| 66 #endif | |
| 67 #include "asn1_locl.h" | |
| 68 | |
| 69 static int dsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey) | |
| 70 { | |
| 71 const unsigned char *p, *pm; | |
| 72 int pklen, pmlen; | |
| 73 int ptype; | |
| 74 void *pval; | |
| 75 ASN1_STRING *pstr; | |
| 76 X509_ALGOR *palg; | |
| 77 ASN1_INTEGER *public_key = NULL; | |
| 78 | |
| 79 DSA *dsa = NULL; | |
| 80 | |
| 81 if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, &palg, pubkey)) | |
| 82 return 0; | |
| 83 X509_ALGOR_get0(NULL, &ptype, &pval, palg); | |
| 84 | |
| 85 | |
| 86 if (ptype == V_ASN1_SEQUENCE) | |
| 87 { | |
| 88 pstr = pval; | |
| 89 pm = pstr->data; | |
| 90 pmlen = pstr->length; | |
| 91 | |
| 92 if (!(dsa = d2i_DSAparams(NULL, &pm, pmlen))) | |
| 93 { | |
| 94 DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_DECODE_ERROR); | |
| 95 goto err; | |
| 96 } | |
| 97 | |
| 98 } | |
| 99 else if ((ptype == V_ASN1_NULL) || (ptype == V_ASN1_UNDEF)) | |
| 100 { | |
| 101 if (!(dsa = DSA_new())) | |
| 102 { | |
| 103 DSAerr(DSA_F_DSA_PUB_DECODE, ERR_R_MALLOC_FAILURE); | |
| 104 goto err; | |
| 105 } | |
| 106 } | |
| 107 else | |
| 108 { | |
| 109 DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_PARAMETER_ENCODING_ERROR); | |
| 110 goto err; | |
| 111 } | |
| 112 | |
| 113 if (!(public_key=d2i_ASN1_INTEGER(NULL, &p, pklen))) | |
| 114 { | |
| 115 DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_DECODE_ERROR); | |
| 116 goto err; | |
| 117 } | |
| 118 | |
| 119 if (!(dsa->pub_key = ASN1_INTEGER_to_BN(public_key, NULL))) | |
| 120 { | |
| 121 DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_BN_DECODE_ERROR); | |
| 122 goto err; | |
| 123 } | |
| 124 | |
| 125 ASN1_INTEGER_free(public_key); | |
| 126 EVP_PKEY_assign_DSA(pkey, dsa); | |
| 127 return 1; | |
| 128 | |
| 129 err: | |
| 130 if (public_key) | |
| 131 ASN1_INTEGER_free(public_key); | |
| 132 if (dsa) | |
| 133 DSA_free(dsa); | |
| 134 return 0; | |
| 135 | |
| 136 } | |
| 137 | |
| 138 static int dsa_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey) | |
| 139 { | |
| 140 DSA *dsa; | |
| 141 void *pval = NULL; | |
| 142 int ptype; | |
| 143 unsigned char *penc = NULL; | |
| 144 int penclen; | |
| 145 | |
| 146 dsa=pkey->pkey.dsa; | |
| 147 if (pkey->save_parameters && dsa->p && dsa->q && dsa->g) | |
| 148 { | |
| 149 ASN1_STRING *str; | |
| 150 str = ASN1_STRING_new(); | |
| 151 str->length = i2d_DSAparams(dsa, &str->data); | |
| 152 if (str->length <= 0) | |
| 153 { | |
| 154 DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE); | |
| 155 goto err; | |
| 156 } | |
| 157 pval = str; | |
| 158 ptype = V_ASN1_SEQUENCE; | |
| 159 } | |
| 160 else | |
| 161 ptype = V_ASN1_UNDEF; | |
| 162 | |
| 163 dsa->write_params=0; | |
| 164 | |
| 165 penclen = i2d_DSAPublicKey(dsa, &penc); | |
| 166 | |
| 167 if (penclen <= 0) | |
| 168 { | |
| 169 DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE); | |
| 170 goto err; | |
| 171 } | |
| 172 | |
| 173 if (X509_PUBKEY_set0_param(pk, OBJ_nid2obj(EVP_PKEY_DSA), | |
| 174 ptype, pval, penc, penclen)) | |
| 175 return 1; | |
| 176 | |
| 177 err: | |
| 178 if (penc) | |
| 179 OPENSSL_free(penc); | |
| 180 if (pval) | |
| 181 ASN1_STRING_free(pval); | |
| 182 | |
| 183 return 0; | |
| 184 } | |
| 185 | |
| 186 /* In PKCS#8 DSA: you just get a private key integer and parameters in the | |
| 187 * AlgorithmIdentifier the pubkey must be recalculated. | |
| 188 */ | |
| 189 | |
| 190 static int dsa_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8) | |
| 191 { | |
| 192 const unsigned char *p, *pm; | |
| 193 int pklen, pmlen; | |
| 194 int ptype; | |
| 195 void *pval; | |
| 196 ASN1_STRING *pstr; | |
| 197 X509_ALGOR *palg; | |
| 198 ASN1_INTEGER *privkey = NULL; | |
| 199 BN_CTX *ctx = NULL; | |
| 200 | |
| 201 STACK_OF(ASN1_TYPE) *ndsa = NULL; | |
| 202 DSA *dsa = NULL; | |
| 203 | |
| 204 if (!PKCS8_pkey_get0(NULL, &p, &pklen, &palg, p8)) | |
| 205 return 0; | |
| 206 X509_ALGOR_get0(NULL, &ptype, &pval, palg); | |
| 207 | |
| 208 /* Check for broken DSA PKCS#8, UGH! */ | |
| 209 if (*p == (V_ASN1_SEQUENCE|V_ASN1_CONSTRUCTED)) | |
| 210 { | |
| 211 ASN1_TYPE *t1, *t2; | |
| 212 if(!(ndsa = d2i_ASN1_SEQUENCE_ANY(NULL, &p, pklen))) | |
| 213 goto decerr; | |
| 214 if (sk_ASN1_TYPE_num(ndsa) != 2) | |
| 215 goto decerr; | |
| 216 /* Handle Two broken types: | |
| 217 * SEQUENCE {parameters, priv_key} | |
| 218 * SEQUENCE {pub_key, priv_key} | |
| 219 */ | |
| 220 | |
| 221 t1 = sk_ASN1_TYPE_value(ndsa, 0); | |
| 222 t2 = sk_ASN1_TYPE_value(ndsa, 1); | |
| 223 if (t1->type == V_ASN1_SEQUENCE) | |
| 224 { | |
| 225 p8->broken = PKCS8_EMBEDDED_PARAM; | |
| 226 pval = t1->value.ptr; | |
| 227 } | |
| 228 else if (ptype == V_ASN1_SEQUENCE) | |
| 229 p8->broken = PKCS8_NS_DB; | |
| 230 else | |
| 231 goto decerr; | |
| 232 | |
| 233 if (t2->type != V_ASN1_INTEGER) | |
| 234 goto decerr; | |
| 235 | |
| 236 privkey = t2->value.integer; | |
| 237 } | |
| 238 else | |
| 239 { | |
| 240 const unsigned char *q = p; | |
| 241 if (!(privkey=d2i_ASN1_INTEGER(NULL, &p, pklen))) | |
| 242 goto decerr; | |
| 243 if (privkey->type == V_ASN1_NEG_INTEGER) | |
| 244 { | |
| 245 p8->broken = PKCS8_NEG_PRIVKEY; | |
| 246 ASN1_INTEGER_free(privkey); | |
| 247 if (!(privkey=d2i_ASN1_UINTEGER(NULL, &q, pklen))) | |
| 248 goto decerr; | |
| 249 } | |
| 250 if (ptype != V_ASN1_SEQUENCE) | |
| 251 goto decerr; | |
| 252 } | |
| 253 | |
| 254 pstr = pval; | |
| 255 pm = pstr->data; | |
| 256 pmlen = pstr->length; | |
| 257 if (!(dsa = d2i_DSAparams(NULL, &pm, pmlen))) | |
| 258 goto decerr; | |
| 259 /* We have parameters now set private key */ | |
| 260 if (!(dsa->priv_key = ASN1_INTEGER_to_BN(privkey, NULL))) | |
| 261 { | |
| 262 DSAerr(DSA_F_DSA_PRIV_DECODE,DSA_R_BN_ERROR); | |
| 263 goto dsaerr; | |
| 264 } | |
| 265 /* Calculate public key */ | |
| 266 if (!(dsa->pub_key = BN_new())) | |
| 267 { | |
| 268 DSAerr(DSA_F_DSA_PRIV_DECODE, ERR_R_MALLOC_FAILURE); | |
| 269 goto dsaerr; | |
| 270 } | |
| 271 if (!(ctx = BN_CTX_new())) | |
| 272 { | |
| 273 DSAerr(DSA_F_DSA_PRIV_DECODE, ERR_R_MALLOC_FAILURE); | |
| 274 goto dsaerr; | |
| 275 } | |
| 276 | |
| 277 if (!BN_mod_exp(dsa->pub_key, dsa->g, dsa->priv_key, dsa->p, ctx)) | |
| 278 { | |
| 279 DSAerr(DSA_F_DSA_PRIV_DECODE,DSA_R_BN_ERROR); | |
| 280 goto dsaerr; | |
| 281 } | |
| 282 | |
| 283 EVP_PKEY_assign_DSA(pkey, dsa); | |
| 284 BN_CTX_free (ctx); | |
| 285 if(ndsa) | |
| 286 sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free); | |
| 287 else | |
| 288 ASN1_INTEGER_free(privkey); | |
| 289 | |
| 290 return 1; | |
| 291 | |
| 292 decerr: | |
| 293 DSAerr(DSA_F_DSA_PRIV_DECODE, EVP_R_DECODE_ERROR); | |
| 294 dsaerr: | |
| 295 BN_CTX_free (ctx); | |
| 296 if (privkey) | |
| 297 ASN1_INTEGER_free(privkey); | |
| 298 sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free); | |
| 299 DSA_free(dsa); | |
| 300 return 0; | |
| 301 } | |
| 302 | |
| 303 static int dsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey) | |
| 304 { | |
| 305 ASN1_STRING *params = NULL; | |
| 306 ASN1_INTEGER *prkey = NULL; | |
| 307 unsigned char *dp = NULL; | |
| 308 int dplen; | |
| 309 | |
| 310 params = ASN1_STRING_new(); | |
| 311 | |
| 312 if (!params) | |
| 313 { | |
| 314 DSAerr(DSA_F_DSA_PRIV_ENCODE,ERR_R_MALLOC_FAILURE); | |
| 315 goto err; | |
| 316 } | |
| 317 | |
| 318 params->length = i2d_DSAparams(pkey->pkey.dsa, ¶ms->data); | |
| 319 if (params->length <= 0) | |
| 320 { | |
| 321 DSAerr(DSA_F_DSA_PRIV_ENCODE,ERR_R_MALLOC_FAILURE); | |
| 322 goto err; | |
| 323 } | |
| 324 params->type = V_ASN1_SEQUENCE; | |
| 325 | |
| 326 /* Get private key into integer */ | |
| 327 prkey = BN_to_ASN1_INTEGER(pkey->pkey.dsa->priv_key, NULL); | |
| 328 | |
| 329 if (!prkey) | |
| 330 { | |
| 331 DSAerr(DSA_F_DSA_PRIV_ENCODE,DSA_R_BN_ERROR); | |
| 332 goto err; | |
| 333 } | |
| 334 | |
| 335 dplen = i2d_ASN1_INTEGER(prkey, &dp); | |
| 336 | |
| 337 ASN1_INTEGER_free(prkey); | |
| 338 | |
| 339 if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_dsa), 0, | |
| 340 V_ASN1_SEQUENCE, params, dp, dplen)) | |
| 341 goto err; | |
| 342 | |
| 343 return 1; | |
| 344 | |
| 345 err: | |
| 346 if (dp != NULL) | |
| 347 OPENSSL_free(dp); | |
| 348 if (params != NULL) | |
| 349 ASN1_STRING_free(params); | |
| 350 if (prkey != NULL) | |
| 351 ASN1_INTEGER_free(prkey); | |
| 352 return 0; | |
| 353 } | |
| 354 | |
| 355 static int int_dsa_size(const EVP_PKEY *pkey) | |
| 356 { | |
| 357 return(DSA_size(pkey->pkey.dsa)); | |
| 358 } | |
| 359 | |
| 360 static int dsa_bits(const EVP_PKEY *pkey) | |
| 361 { | |
| 362 return BN_num_bits(pkey->pkey.dsa->p); | |
| 363 } | |
| 364 | |
| 365 static int dsa_missing_parameters(const EVP_PKEY *pkey) | |
| 366 { | |
| 367 DSA *dsa; | |
| 368 dsa=pkey->pkey.dsa; | |
| 369 if ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL)) | |
| 370 return 1; | |
| 371 return 0; | |
| 372 } | |
| 373 | |
| 374 static int dsa_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from) | |
| 375 { | |
| 376 BIGNUM *a; | |
| 377 | |
| 378 if ((a=BN_dup(from->pkey.dsa->p)) == NULL) | |
| 379 return 0; | |
| 380 if (to->pkey.dsa->p != NULL) | |
| 381 BN_free(to->pkey.dsa->p); | |
| 382 to->pkey.dsa->p=a; | |
| 383 | |
| 384 if ((a=BN_dup(from->pkey.dsa->q)) == NULL) | |
| 385 return 0; | |
| 386 if (to->pkey.dsa->q != NULL) | |
| 387 BN_free(to->pkey.dsa->q); | |
| 388 to->pkey.dsa->q=a; | |
| 389 | |
| 390 if ((a=BN_dup(from->pkey.dsa->g)) == NULL) | |
| 391 return 0; | |
| 392 if (to->pkey.dsa->g != NULL) | |
| 393 BN_free(to->pkey.dsa->g); | |
| 394 to->pkey.dsa->g=a; | |
| 395 return 1; | |
| 396 } | |
| 397 | |
| 398 static int dsa_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b) | |
| 399 { | |
| 400 if ( BN_cmp(a->pkey.dsa->p,b->pkey.dsa->p) || | |
| 401 BN_cmp(a->pkey.dsa->q,b->pkey.dsa->q) || | |
| 402 BN_cmp(a->pkey.dsa->g,b->pkey.dsa->g)) | |
| 403 return 0; | |
| 404 else | |
| 405 return 1; | |
| 406 } | |
| 407 | |
| 408 static int dsa_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b) | |
| 409 { | |
| 410 if (BN_cmp(b->pkey.dsa->pub_key,a->pkey.dsa->pub_key) != 0) | |
| 411 return 0; | |
| 412 else | |
| 413 return 1; | |
| 414 } | |
| 415 | |
| 416 static void int_dsa_free(EVP_PKEY *pkey) | |
| 417 { | |
| 418 DSA_free(pkey->pkey.dsa); | |
| 419 } | |
| 420 | |
| 421 static void update_buflen(const BIGNUM *b, size_t *pbuflen) | |
| 422 { | |
| 423 size_t i; | |
| 424 if (!b) | |
| 425 return; | |
| 426 if (*pbuflen < (i = (size_t)BN_num_bytes(b))) | |
| 427 *pbuflen = i; | |
| 428 } | |
| 429 | |
| 430 static int do_dsa_print(BIO *bp, const DSA *x, int off, int ptype) | |
| 431 { | |
| 432 unsigned char *m=NULL; | |
| 433 int ret=0; | |
| 434 size_t buf_len=0; | |
| 435 const char *ktype = NULL; | |
| 436 | |
| 437 const BIGNUM *priv_key, *pub_key; | |
| 438 | |
| 439 if (ptype == 2) | |
| 440 priv_key = x->priv_key; | |
| 441 else | |
| 442 priv_key = NULL; | |
| 443 | |
| 444 if (ptype > 0) | |
| 445 pub_key = x->pub_key; | |
| 446 else | |
| 447 pub_key = NULL; | |
| 448 | |
| 449 if (ptype == 2) | |
| 450 ktype = "Private-Key"; | |
| 451 else if (ptype == 1) | |
| 452 ktype = "Public-Key"; | |
| 453 else | |
| 454 ktype = "DSA-Parameters"; | |
| 455 | |
| 456 update_buflen(x->p, &buf_len); | |
| 457 update_buflen(x->q, &buf_len); | |
| 458 update_buflen(x->g, &buf_len); | |
| 459 update_buflen(priv_key, &buf_len); | |
| 460 update_buflen(pub_key, &buf_len); | |
| 461 | |
| 462 m=(unsigned char *)OPENSSL_malloc(buf_len+10); | |
| 463 if (m == NULL) | |
| 464 { | |
| 465 DSAerr(DSA_F_DO_DSA_PRINT,ERR_R_MALLOC_FAILURE); | |
| 466 goto err; | |
| 467 } | |
| 468 | |
| 469 if (priv_key) | |
| 470 { | |
| 471 if(!BIO_indent(bp,off,128)) | |
| 472 goto err; | |
| 473 if (BIO_printf(bp,"%s: (%d bit)\n",ktype, BN_num_bits(x->p)) | |
| 474 <= 0) goto err; | |
| 475 } | |
| 476 | |
| 477 if (!ASN1_bn_print(bp,"priv:",priv_key,m,off)) | |
| 478 goto err; | |
| 479 if (!ASN1_bn_print(bp,"pub: ",pub_key,m,off)) | |
| 480 goto err; | |
| 481 if (!ASN1_bn_print(bp,"P: ",x->p,m,off)) goto err; | |
| 482 if (!ASN1_bn_print(bp,"Q: ",x->q,m,off)) goto err; | |
| 483 if (!ASN1_bn_print(bp,"G: ",x->g,m,off)) goto err; | |
| 484 ret=1; | |
| 485 err: | |
| 486 if (m != NULL) OPENSSL_free(m); | |
| 487 return(ret); | |
| 488 } | |
| 489 | |
| 490 static int dsa_param_decode(EVP_PKEY *pkey, | |
| 491 const unsigned char **pder, int derlen) | |
| 492 { | |
| 493 DSA *dsa; | |
| 494 if (!(dsa = d2i_DSAparams(NULL, pder, derlen))) | |
| 495 { | |
| 496 DSAerr(DSA_F_DSA_PARAM_DECODE, ERR_R_DSA_LIB); | |
| 497 return 0; | |
| 498 } | |
| 499 EVP_PKEY_assign_DSA(pkey, dsa); | |
| 500 return 1; | |
| 501 } | |
| 502 | |
| 503 static int dsa_param_encode(const EVP_PKEY *pkey, unsigned char **pder) | |
| 504 { | |
| 505 return i2d_DSAparams(pkey->pkey.dsa, pder); | |
| 506 } | |
| 507 | |
| 508 static int dsa_param_print(BIO *bp, const EVP_PKEY *pkey, int indent, | |
| 509 ASN1_PCTX *ctx) | |
| 510 { | |
| 511 return do_dsa_print(bp, pkey->pkey.dsa, indent, 0); | |
| 512 } | |
| 513 | |
| 514 static int dsa_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent, | |
| 515 ASN1_PCTX *ctx) | |
| 516 { | |
| 517 return do_dsa_print(bp, pkey->pkey.dsa, indent, 1); | |
| 518 } | |
| 519 | |
| 520 | |
| 521 static int dsa_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent, | |
| 522 ASN1_PCTX *ctx) | |
| 523 { | |
| 524 return do_dsa_print(bp, pkey->pkey.dsa, indent, 2); | |
| 525 } | |
| 526 | |
| 527 static int old_dsa_priv_decode(EVP_PKEY *pkey, | |
| 528 const unsigned char **pder, int derlen) | |
| 529 { | |
| 530 DSA *dsa; | |
| 531 if (!(dsa = d2i_DSAPrivateKey (NULL, pder, derlen))) | |
| 532 { | |
| 533 DSAerr(DSA_F_OLD_DSA_PRIV_DECODE, ERR_R_DSA_LIB); | |
| 534 return 0; | |
| 535 } | |
| 536 EVP_PKEY_assign_DSA(pkey, dsa); | |
| 537 return 1; | |
| 538 } | |
| 539 | |
| 540 static int old_dsa_priv_encode(const EVP_PKEY *pkey, unsigned char **pder) | |
| 541 { | |
| 542 return i2d_DSAPrivateKey(pkey->pkey.dsa, pder); | |
| 543 } | |
| 544 | |
| 545 static int dsa_sig_print(BIO *bp, const X509_ALGOR *sigalg, | |
| 546 const ASN1_STRING *sig, | |
| 547 int indent, ASN1_PCTX *pctx) | |
| 548 { | |
| 549 DSA_SIG *dsa_sig; | |
| 550 const unsigned char *p; | |
| 551 if (!sig) | |
| 552 { | |
| 553 if (BIO_puts(bp, "\n") <= 0) | |
| 554 return 0; | |
| 555 else | |
| 556 return 1; | |
| 557 } | |
| 558 p = sig->data; | |
| 559 dsa_sig = d2i_DSA_SIG(NULL, &p, sig->length); | |
| 560 if (dsa_sig) | |
| 561 { | |
| 562 int rv = 0; | |
| 563 size_t buf_len = 0; | |
| 564 unsigned char *m=NULL; | |
| 565 update_buflen(dsa_sig->r, &buf_len); | |
| 566 update_buflen(dsa_sig->s, &buf_len); | |
| 567 m = OPENSSL_malloc(buf_len+10); | |
| 568 if (m == NULL) | |
| 569 { | |
| 570 DSAerr(DSA_F_DSA_SIG_PRINT,ERR_R_MALLOC_FAILURE); | |
| 571 goto err; | |
| 572 } | |
| 573 | |
| 574 if (BIO_write(bp, "\n", 1) != 1) | |
| 575 goto err; | |
| 576 | |
| 577 if (!ASN1_bn_print(bp,"r: ",dsa_sig->r,m,indent)) | |
| 578 goto err; | |
| 579 if (!ASN1_bn_print(bp,"s: ",dsa_sig->s,m,indent)) | |
| 580 goto err; | |
| 581 rv = 1; | |
| 582 err: | |
| 583 if (m) | |
| 584 OPENSSL_free(m); | |
| 585 DSA_SIG_free(dsa_sig); | |
| 586 return rv; | |
| 587 } | |
| 588 return X509_signature_dump(bp, sig, indent); | |
| 589 } | |
| 590 | |
| 591 static int dsa_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2) | |
| 592 { | |
| 593 switch (op) | |
| 594 { | |
| 595 case ASN1_PKEY_CTRL_PKCS7_SIGN: | |
| 596 if (arg1 == 0) | |
| 597 { | |
| 598 int snid, hnid; | |
| 599 X509_ALGOR *alg1, *alg2; | |
| 600 PKCS7_SIGNER_INFO_get0_algs(arg2, NULL, &alg1, &alg2); | |
| 601 if (alg1 == NULL || alg1->algorithm == NULL) | |
| 602 return -1; | |
| 603 hnid = OBJ_obj2nid(alg1->algorithm); | |
| 604 if (hnid == NID_undef) | |
| 605 return -1; | |
| 606 if (!OBJ_find_sigid_by_algs(&snid, hnid, EVP_PKEY_id(pke
y))) | |
| 607 return -1; | |
| 608 X509_ALGOR_set0(alg2, OBJ_nid2obj(snid), V_ASN1_UNDEF, 0
); | |
| 609 } | |
| 610 return 1; | |
| 611 #ifndef OPENSSL_NO_CMS | |
| 612 case ASN1_PKEY_CTRL_CMS_SIGN: | |
| 613 if (arg1 == 0) | |
| 614 { | |
| 615 int snid, hnid; | |
| 616 X509_ALGOR *alg1, *alg2; | |
| 617 CMS_SignerInfo_get0_algs(arg2, NULL, NULL, &alg1, &alg2)
; | |
| 618 if (alg1 == NULL || alg1->algorithm == NULL) | |
| 619 return -1; | |
| 620 hnid = OBJ_obj2nid(alg1->algorithm); | |
| 621 if (hnid == NID_undef) | |
| 622 return -1; | |
| 623 if (!OBJ_find_sigid_by_algs(&snid, hnid, EVP_PKEY_id(pke
y))) | |
| 624 return -1; | |
| 625 X509_ALGOR_set0(alg2, OBJ_nid2obj(snid), V_ASN1_UNDEF, 0
); | |
| 626 } | |
| 627 return 1; | |
| 628 #endif | |
| 629 | |
| 630 case ASN1_PKEY_CTRL_DEFAULT_MD_NID: | |
| 631 *(int *)arg2 = NID_sha1; | |
| 632 return 2; | |
| 633 | |
| 634 default: | |
| 635 return -2; | |
| 636 | |
| 637 } | |
| 638 | |
| 639 } | |
| 640 | |
| 641 /* NB these are sorted in pkey_id order, lowest first */ | |
| 642 | |
| 643 const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[] = | |
| 644 { | |
| 645 | |
| 646 { | |
| 647 EVP_PKEY_DSA2, | |
| 648 EVP_PKEY_DSA, | |
| 649 ASN1_PKEY_ALIAS | |
| 650 }, | |
| 651 | |
| 652 { | |
| 653 EVP_PKEY_DSA1, | |
| 654 EVP_PKEY_DSA, | |
| 655 ASN1_PKEY_ALIAS | |
| 656 }, | |
| 657 | |
| 658 { | |
| 659 EVP_PKEY_DSA4, | |
| 660 EVP_PKEY_DSA, | |
| 661 ASN1_PKEY_ALIAS | |
| 662 }, | |
| 663 | |
| 664 { | |
| 665 EVP_PKEY_DSA3, | |
| 666 EVP_PKEY_DSA, | |
| 667 ASN1_PKEY_ALIAS | |
| 668 }, | |
| 669 | |
| 670 { | |
| 671 EVP_PKEY_DSA, | |
| 672 EVP_PKEY_DSA, | |
| 673 0, | |
| 674 | |
| 675 "DSA", | |
| 676 "OpenSSL DSA method", | |
| 677 | |
| 678 dsa_pub_decode, | |
| 679 dsa_pub_encode, | |
| 680 dsa_pub_cmp, | |
| 681 dsa_pub_print, | |
| 682 | |
| 683 dsa_priv_decode, | |
| 684 dsa_priv_encode, | |
| 685 dsa_priv_print, | |
| 686 | |
| 687 int_dsa_size, | |
| 688 dsa_bits, | |
| 689 | |
| 690 dsa_param_decode, | |
| 691 dsa_param_encode, | |
| 692 dsa_missing_parameters, | |
| 693 dsa_copy_parameters, | |
| 694 dsa_cmp_parameters, | |
| 695 dsa_param_print, | |
| 696 dsa_sig_print, | |
| 697 | |
| 698 int_dsa_free, | |
| 699 dsa_pkey_ctrl, | |
| 700 old_dsa_priv_decode, | |
| 701 old_dsa_priv_encode | |
| 702 } | |
| 703 }; | |
| 704 | |
| OLD | NEW |
|---|
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