155714Skris/* crypto/pkcs7/pk7_lib.c */ 255714Skris/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 355714Skris * All rights reserved. 455714Skris * 555714Skris * This package is an SSL implementation written 655714Skris * by Eric Young (eay@cryptsoft.com). 755714Skris * The implementation was written so as to conform with Netscapes SSL. 8280304Sjkim * 955714Skris * This library is free for commercial and non-commercial use as long as 1055714Skris * the following conditions are aheared to. The following conditions 1155714Skris * apply to all code found in this distribution, be it the RC4, RSA, 1255714Skris * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1355714Skris * included with this distribution is covered by the same copyright terms 1455714Skris * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15280304Sjkim * 1655714Skris * Copyright remains Eric Young's, and as such any Copyright notices in 1755714Skris * the code are not to be removed. 1855714Skris * If this package is used in a product, Eric Young should be given attribution 1955714Skris * as the author of the parts of the library used. 2055714Skris * This can be in the form of a textual message at program startup or 2155714Skris * in documentation (online or textual) provided with the package. 22280304Sjkim * 2355714Skris * Redistribution and use in source and binary forms, with or without 2455714Skris * modification, are permitted provided that the following conditions 2555714Skris * are met: 2655714Skris * 1. Redistributions of source code must retain the copyright 2755714Skris * notice, this list of conditions and the following disclaimer. 2855714Skris * 2. Redistributions in binary form must reproduce the above copyright 2955714Skris * notice, this list of conditions and the following disclaimer in the 3055714Skris * documentation and/or other materials provided with the distribution. 3155714Skris * 3. All advertising materials mentioning features or use of this software 3255714Skris * must display the following acknowledgement: 3355714Skris * "This product includes cryptographic software written by 3455714Skris * Eric Young (eay@cryptsoft.com)" 3555714Skris * The word 'cryptographic' can be left out if the rouines from the library 3655714Skris * being used are not cryptographic related :-). 37280304Sjkim * 4. If you include any Windows specific code (or a derivative thereof) from 3855714Skris * the apps directory (application code) you must include an acknowledgement: 3955714Skris * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40280304Sjkim * 4155714Skris * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4255714Skris * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4355714Skris * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4455714Skris * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4555714Skris * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4655714Skris * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4755714Skris * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4855714Skris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4955714Skris * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5055714Skris * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5155714Skris * SUCH DAMAGE. 52280304Sjkim * 5355714Skris * The licence and distribution terms for any publically available version or 5455714Skris * derivative of this code cannot be changed. i.e. this code cannot simply be 5555714Skris * copied and put under another distribution licence 5655714Skris * [including the GNU Public Licence.] 5755714Skris */ 5855714Skris 5955714Skris#include <stdio.h> 6055714Skris#include "cryptlib.h" 6155714Skris#include <openssl/objects.h> 6255714Skris#include <openssl/x509.h> 63238405Sjkim#include "asn1_locl.h" 6455714Skris 6555714Skrislong PKCS7_ctrl(PKCS7 *p7, int cmd, long larg, char *parg) 66280304Sjkim{ 67280304Sjkim int nid; 68280304Sjkim long ret; 6955714Skris 70280304Sjkim nid = OBJ_obj2nid(p7->type); 7155714Skris 72280304Sjkim switch (cmd) { 73280304Sjkim /* NOTE(emilia): does not support detached digested data. */ 74280304Sjkim case PKCS7_OP_SET_DETACHED_SIGNATURE: 75280304Sjkim if (nid == NID_pkcs7_signed) { 76280304Sjkim ret = p7->detached = (int)larg; 77280304Sjkim if (ret && PKCS7_type_is_data(p7->d.sign->contents)) { 78280304Sjkim ASN1_OCTET_STRING *os; 79280304Sjkim os = p7->d.sign->contents->d.data; 80280304Sjkim ASN1_OCTET_STRING_free(os); 81280304Sjkim p7->d.sign->contents->d.data = NULL; 82280304Sjkim } 83280304Sjkim } else { 84280304Sjkim PKCS7err(PKCS7_F_PKCS7_CTRL, 85280304Sjkim PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE); 86280304Sjkim ret = 0; 87280304Sjkim } 88280304Sjkim break; 89280304Sjkim case PKCS7_OP_GET_DETACHED_SIGNATURE: 90280304Sjkim if (nid == NID_pkcs7_signed) { 91280304Sjkim if (!p7->d.sign || !p7->d.sign->contents->d.ptr) 92280304Sjkim ret = 1; 93280304Sjkim else 94280304Sjkim ret = 0; 9555714Skris 96280304Sjkim p7->detached = ret; 97280304Sjkim } else { 98280304Sjkim PKCS7err(PKCS7_F_PKCS7_CTRL, 99280304Sjkim PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE); 100280304Sjkim ret = 0; 101280304Sjkim } 102280304Sjkim 103280304Sjkim break; 104280304Sjkim default: 105280304Sjkim PKCS7err(PKCS7_F_PKCS7_CTRL, PKCS7_R_UNKNOWN_OPERATION); 106280304Sjkim ret = 0; 107280304Sjkim } 108280304Sjkim return (ret); 109280304Sjkim} 110280304Sjkim 11155714Skrisint PKCS7_content_new(PKCS7 *p7, int type) 112280304Sjkim{ 113280304Sjkim PKCS7 *ret = NULL; 11455714Skris 115280304Sjkim if ((ret = PKCS7_new()) == NULL) 116280304Sjkim goto err; 117280304Sjkim if (!PKCS7_set_type(ret, type)) 118280304Sjkim goto err; 119280304Sjkim if (!PKCS7_set_content(p7, ret)) 120280304Sjkim goto err; 12155714Skris 122280304Sjkim return (1); 123280304Sjkim err: 124280304Sjkim if (ret != NULL) 125280304Sjkim PKCS7_free(ret); 126280304Sjkim return (0); 127280304Sjkim} 12855714Skris 12955714Skrisint PKCS7_set_content(PKCS7 *p7, PKCS7 *p7_data) 130280304Sjkim{ 131280304Sjkim int i; 13255714Skris 133280304Sjkim i = OBJ_obj2nid(p7->type); 134280304Sjkim switch (i) { 135280304Sjkim case NID_pkcs7_signed: 136280304Sjkim if (p7->d.sign->contents != NULL) 137280304Sjkim PKCS7_free(p7->d.sign->contents); 138280304Sjkim p7->d.sign->contents = p7_data; 139280304Sjkim break; 140280304Sjkim case NID_pkcs7_digest: 141280304Sjkim if (p7->d.digest->contents != NULL) 142280304Sjkim PKCS7_free(p7->d.digest->contents); 143280304Sjkim p7->d.digest->contents = p7_data; 144280304Sjkim break; 145280304Sjkim case NID_pkcs7_data: 146280304Sjkim case NID_pkcs7_enveloped: 147280304Sjkim case NID_pkcs7_signedAndEnveloped: 148280304Sjkim case NID_pkcs7_encrypted: 149280304Sjkim default: 150280304Sjkim PKCS7err(PKCS7_F_PKCS7_SET_CONTENT, PKCS7_R_UNSUPPORTED_CONTENT_TYPE); 151280304Sjkim goto err; 152280304Sjkim } 153280304Sjkim return (1); 154280304Sjkim err: 155280304Sjkim return (0); 156280304Sjkim} 15755714Skris 15855714Skrisint PKCS7_set_type(PKCS7 *p7, int type) 159280304Sjkim{ 160280304Sjkim ASN1_OBJECT *obj; 16155714Skris 162280304Sjkim /* 163280304Sjkim * PKCS7_content_free(p7); 164280304Sjkim */ 165280304Sjkim obj = OBJ_nid2obj(type); /* will not fail */ 16655714Skris 167280304Sjkim switch (type) { 168280304Sjkim case NID_pkcs7_signed: 169280304Sjkim p7->type = obj; 170280304Sjkim if ((p7->d.sign = PKCS7_SIGNED_new()) == NULL) 171280304Sjkim goto err; 172280304Sjkim if (!ASN1_INTEGER_set(p7->d.sign->version, 1)) { 173280304Sjkim PKCS7_SIGNED_free(p7->d.sign); 174280304Sjkim p7->d.sign = NULL; 175280304Sjkim goto err; 176280304Sjkim } 177280304Sjkim break; 178280304Sjkim case NID_pkcs7_data: 179280304Sjkim p7->type = obj; 180280304Sjkim if ((p7->d.data = M_ASN1_OCTET_STRING_new()) == NULL) 181280304Sjkim goto err; 182280304Sjkim break; 183280304Sjkim case NID_pkcs7_signedAndEnveloped: 184280304Sjkim p7->type = obj; 185280304Sjkim if ((p7->d.signed_and_enveloped = PKCS7_SIGN_ENVELOPE_new()) 186280304Sjkim == NULL) 187280304Sjkim goto err; 188280304Sjkim ASN1_INTEGER_set(p7->d.signed_and_enveloped->version, 1); 189280304Sjkim if (!ASN1_INTEGER_set(p7->d.signed_and_enveloped->version, 1)) 190280304Sjkim goto err; 191280304Sjkim p7->d.signed_and_enveloped->enc_data->content_type 192280304Sjkim = OBJ_nid2obj(NID_pkcs7_data); 193280304Sjkim break; 194280304Sjkim case NID_pkcs7_enveloped: 195280304Sjkim p7->type = obj; 196280304Sjkim if ((p7->d.enveloped = PKCS7_ENVELOPE_new()) 197280304Sjkim == NULL) 198280304Sjkim goto err; 199280304Sjkim if (!ASN1_INTEGER_set(p7->d.enveloped->version, 0)) 200280304Sjkim goto err; 201280304Sjkim p7->d.enveloped->enc_data->content_type = OBJ_nid2obj(NID_pkcs7_data); 202280304Sjkim break; 203280304Sjkim case NID_pkcs7_encrypted: 204280304Sjkim p7->type = obj; 205280304Sjkim if ((p7->d.encrypted = PKCS7_ENCRYPT_new()) 206280304Sjkim == NULL) 207280304Sjkim goto err; 208280304Sjkim if (!ASN1_INTEGER_set(p7->d.encrypted->version, 0)) 209280304Sjkim goto err; 210280304Sjkim p7->d.encrypted->enc_data->content_type = OBJ_nid2obj(NID_pkcs7_data); 211280304Sjkim break; 21259191Skris 213280304Sjkim case NID_pkcs7_digest: 214280304Sjkim p7->type = obj; 215280304Sjkim if ((p7->d.digest = PKCS7_DIGEST_new()) 216280304Sjkim == NULL) 217280304Sjkim goto err; 218280304Sjkim if (!ASN1_INTEGER_set(p7->d.digest->version, 0)) 219280304Sjkim goto err; 220280304Sjkim break; 221280304Sjkim default: 222280304Sjkim PKCS7err(PKCS7_F_PKCS7_SET_TYPE, PKCS7_R_UNSUPPORTED_CONTENT_TYPE); 223280304Sjkim goto err; 224280304Sjkim } 225280304Sjkim return (1); 226280304Sjkim err: 227280304Sjkim return (0); 228280304Sjkim} 22955714Skris 230160814Ssimonint PKCS7_set0_type_other(PKCS7 *p7, int type, ASN1_TYPE *other) 231280304Sjkim{ 232280304Sjkim p7->type = OBJ_nid2obj(type); 233280304Sjkim p7->d.other = other; 234280304Sjkim return 1; 235280304Sjkim} 236160814Ssimon 23755714Skrisint PKCS7_add_signer(PKCS7 *p7, PKCS7_SIGNER_INFO *psi) 238280304Sjkim{ 239280304Sjkim int i, j, nid; 240280304Sjkim X509_ALGOR *alg; 241280304Sjkim STACK_OF(PKCS7_SIGNER_INFO) *signer_sk; 242280304Sjkim STACK_OF(X509_ALGOR) *md_sk; 24355714Skris 244280304Sjkim i = OBJ_obj2nid(p7->type); 245280304Sjkim switch (i) { 246280304Sjkim case NID_pkcs7_signed: 247280304Sjkim signer_sk = p7->d.sign->signer_info; 248280304Sjkim md_sk = p7->d.sign->md_algs; 249280304Sjkim break; 250280304Sjkim case NID_pkcs7_signedAndEnveloped: 251280304Sjkim signer_sk = p7->d.signed_and_enveloped->signer_info; 252280304Sjkim md_sk = p7->d.signed_and_enveloped->md_algs; 253280304Sjkim break; 254280304Sjkim default: 255280304Sjkim PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER, PKCS7_R_WRONG_CONTENT_TYPE); 256280304Sjkim return (0); 257280304Sjkim } 25855714Skris 259280304Sjkim nid = OBJ_obj2nid(psi->digest_alg->algorithm); 26055714Skris 261280304Sjkim /* If the digest is not currently listed, add it */ 262280304Sjkim j = 0; 263280304Sjkim for (i = 0; i < sk_X509_ALGOR_num(md_sk); i++) { 264280304Sjkim alg = sk_X509_ALGOR_value(md_sk, i); 265280304Sjkim if (OBJ_obj2nid(alg->algorithm) == nid) { 266280304Sjkim j = 1; 267280304Sjkim break; 268280304Sjkim } 269280304Sjkim } 270280304Sjkim if (!j) { /* we need to add another algorithm */ 271280304Sjkim if (!(alg = X509_ALGOR_new()) 272280304Sjkim || !(alg->parameter = ASN1_TYPE_new())) { 273280304Sjkim X509_ALGOR_free(alg); 274280304Sjkim PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER, ERR_R_MALLOC_FAILURE); 275280304Sjkim return (0); 276280304Sjkim } 277280304Sjkim alg->algorithm = OBJ_nid2obj(nid); 278280304Sjkim alg->parameter->type = V_ASN1_NULL; 279280304Sjkim if (!sk_X509_ALGOR_push(md_sk, alg)) { 280280304Sjkim X509_ALGOR_free(alg); 281280304Sjkim return 0; 282280304Sjkim } 283280304Sjkim } 28455714Skris 285280304Sjkim if (!sk_PKCS7_SIGNER_INFO_push(signer_sk, psi)) 286280304Sjkim return 0; 287280304Sjkim return (1); 288280304Sjkim} 28955714Skris 29055714Skrisint PKCS7_add_certificate(PKCS7 *p7, X509 *x509) 291280304Sjkim{ 292280304Sjkim int i; 293280304Sjkim STACK_OF(X509) **sk; 29455714Skris 295280304Sjkim i = OBJ_obj2nid(p7->type); 296280304Sjkim switch (i) { 297280304Sjkim case NID_pkcs7_signed: 298280304Sjkim sk = &(p7->d.sign->cert); 299280304Sjkim break; 300280304Sjkim case NID_pkcs7_signedAndEnveloped: 301280304Sjkim sk = &(p7->d.signed_and_enveloped->cert); 302280304Sjkim break; 303280304Sjkim default: 304280304Sjkim PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE, PKCS7_R_WRONG_CONTENT_TYPE); 305280304Sjkim return (0); 306280304Sjkim } 30755714Skris 308280304Sjkim if (*sk == NULL) 309280304Sjkim *sk = sk_X509_new_null(); 310280304Sjkim if (*sk == NULL) { 311280304Sjkim PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE, ERR_R_MALLOC_FAILURE); 312280304Sjkim return 0; 313280304Sjkim } 314280304Sjkim CRYPTO_add(&x509->references, 1, CRYPTO_LOCK_X509); 315280304Sjkim if (!sk_X509_push(*sk, x509)) { 316280304Sjkim X509_free(x509); 317280304Sjkim return 0; 318280304Sjkim } 319280304Sjkim return (1); 320280304Sjkim} 32155714Skris 32255714Skrisint PKCS7_add_crl(PKCS7 *p7, X509_CRL *crl) 323280304Sjkim{ 324280304Sjkim int i; 325280304Sjkim STACK_OF(X509_CRL) **sk; 32655714Skris 327280304Sjkim i = OBJ_obj2nid(p7->type); 328280304Sjkim switch (i) { 329280304Sjkim case NID_pkcs7_signed: 330280304Sjkim sk = &(p7->d.sign->crl); 331280304Sjkim break; 332280304Sjkim case NID_pkcs7_signedAndEnveloped: 333280304Sjkim sk = &(p7->d.signed_and_enveloped->crl); 334280304Sjkim break; 335280304Sjkim default: 336280304Sjkim PKCS7err(PKCS7_F_PKCS7_ADD_CRL, PKCS7_R_WRONG_CONTENT_TYPE); 337280304Sjkim return (0); 338280304Sjkim } 33955714Skris 340280304Sjkim if (*sk == NULL) 341280304Sjkim *sk = sk_X509_CRL_new_null(); 342280304Sjkim if (*sk == NULL) { 343280304Sjkim PKCS7err(PKCS7_F_PKCS7_ADD_CRL, ERR_R_MALLOC_FAILURE); 344280304Sjkim return 0; 345280304Sjkim } 34655714Skris 347280304Sjkim CRYPTO_add(&crl->references, 1, CRYPTO_LOCK_X509_CRL); 348280304Sjkim if (!sk_X509_CRL_push(*sk, crl)) { 349280304Sjkim X509_CRL_free(crl); 350280304Sjkim return 0; 351280304Sjkim } 352280304Sjkim return (1); 353280304Sjkim} 35455714Skris 35555714Skrisint PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey, 356280304Sjkim const EVP_MD *dgst) 357280304Sjkim{ 358280304Sjkim int ret; 359160814Ssimon 360280304Sjkim /* We now need to add another PKCS7_SIGNER_INFO entry */ 361280304Sjkim if (!ASN1_INTEGER_set(p7i->version, 1)) 362280304Sjkim goto err; 363280304Sjkim if (!X509_NAME_set(&p7i->issuer_and_serial->issuer, 364280304Sjkim X509_get_issuer_name(x509))) 365280304Sjkim goto err; 36655714Skris 367280304Sjkim /* 368280304Sjkim * because ASN1_INTEGER_set is used to set a 'long' we will do things the 369280304Sjkim * ugly way. 370280304Sjkim */ 371280304Sjkim M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial); 372280304Sjkim if (!(p7i->issuer_and_serial->serial = 373280304Sjkim M_ASN1_INTEGER_dup(X509_get_serialNumber(x509)))) 374280304Sjkim goto err; 37555714Skris 376280304Sjkim /* lets keep the pkey around for a while */ 377280304Sjkim CRYPTO_add(&pkey->references, 1, CRYPTO_LOCK_EVP_PKEY); 378280304Sjkim p7i->pkey = pkey; 37955714Skris 380280304Sjkim /* Set the algorithms */ 38155714Skris 382280304Sjkim X509_ALGOR_set0(p7i->digest_alg, OBJ_nid2obj(EVP_MD_type(dgst)), 383280304Sjkim V_ASN1_NULL, NULL); 38455714Skris 385280304Sjkim if (pkey->ameth && pkey->ameth->pkey_ctrl) { 386280304Sjkim ret = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_PKCS7_SIGN, 0, p7i); 387280304Sjkim if (ret > 0) 388280304Sjkim return 1; 389280304Sjkim if (ret != -2) { 390280304Sjkim PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SET, 391280304Sjkim PKCS7_R_SIGNING_CTRL_FAILURE); 392280304Sjkim return 0; 393280304Sjkim } 394280304Sjkim } 395280304Sjkim PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SET, 396280304Sjkim PKCS7_R_SIGNING_NOT_SUPPORTED_FOR_THIS_KEY_TYPE); 397280304Sjkim err: 398280304Sjkim return 0; 399280304Sjkim} 40055714Skris 40155714SkrisPKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509, EVP_PKEY *pkey, 402280304Sjkim const EVP_MD *dgst) 403280304Sjkim{ 404280304Sjkim PKCS7_SIGNER_INFO *si = NULL; 40555714Skris 406280304Sjkim if (dgst == NULL) { 407280304Sjkim int def_nid; 408280304Sjkim if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) <= 0) 409280304Sjkim goto err; 410280304Sjkim dgst = EVP_get_digestbynid(def_nid); 411280304Sjkim if (dgst == NULL) { 412280304Sjkim PKCS7err(PKCS7_F_PKCS7_ADD_SIGNATURE, PKCS7_R_NO_DEFAULT_DIGEST); 413280304Sjkim goto err; 414280304Sjkim } 415280304Sjkim } 416238405Sjkim 417280304Sjkim if ((si = PKCS7_SIGNER_INFO_new()) == NULL) 418280304Sjkim goto err; 419280304Sjkim if (!PKCS7_SIGNER_INFO_set(si, x509, pkey, dgst)) 420280304Sjkim goto err; 421280304Sjkim if (!PKCS7_add_signer(p7, si)) 422280304Sjkim goto err; 423280304Sjkim return (si); 424280304Sjkim err: 425280304Sjkim if (si) 426280304Sjkim PKCS7_SIGNER_INFO_free(si); 427280304Sjkim return (NULL); 428280304Sjkim} 42955714Skris 430160814Ssimonint PKCS7_set_digest(PKCS7 *p7, const EVP_MD *md) 431280304Sjkim{ 432280304Sjkim if (PKCS7_type_is_digest(p7)) { 433280304Sjkim if (!(p7->d.digest->md->parameter = ASN1_TYPE_new())) { 434280304Sjkim PKCS7err(PKCS7_F_PKCS7_SET_DIGEST, ERR_R_MALLOC_FAILURE); 435280304Sjkim return 0; 436280304Sjkim } 437280304Sjkim p7->d.digest->md->parameter->type = V_ASN1_NULL; 438280304Sjkim p7->d.digest->md->algorithm = OBJ_nid2obj(EVP_MD_nid(md)); 439280304Sjkim return 1; 440280304Sjkim } 441160814Ssimon 442280304Sjkim PKCS7err(PKCS7_F_PKCS7_SET_DIGEST, PKCS7_R_WRONG_CONTENT_TYPE); 443280304Sjkim return 1; 444280304Sjkim} 445280304Sjkim 44655714SkrisSTACK_OF(PKCS7_SIGNER_INFO) *PKCS7_get_signer_info(PKCS7 *p7) 447280304Sjkim{ 448280304Sjkim if (p7 == NULL || p7->d.ptr == NULL) 449280304Sjkim return NULL; 450280304Sjkim if (PKCS7_type_is_signed(p7)) { 451280304Sjkim return (p7->d.sign->signer_info); 452280304Sjkim } else if (PKCS7_type_is_signedAndEnveloped(p7)) { 453280304Sjkim return (p7->d.signed_and_enveloped->signer_info); 454280304Sjkim } else 455280304Sjkim return (NULL); 456280304Sjkim} 45755714Skris 458238405Sjkimvoid PKCS7_SIGNER_INFO_get0_algs(PKCS7_SIGNER_INFO *si, EVP_PKEY **pk, 459280304Sjkim X509_ALGOR **pdig, X509_ALGOR **psig) 460280304Sjkim{ 461280304Sjkim if (pk) 462280304Sjkim *pk = si->pkey; 463280304Sjkim if (pdig) 464280304Sjkim *pdig = si->digest_alg; 465280304Sjkim if (psig) 466280304Sjkim *psig = si->digest_enc_alg; 467280304Sjkim} 468238405Sjkim 469238405Sjkimvoid PKCS7_RECIP_INFO_get0_alg(PKCS7_RECIP_INFO *ri, X509_ALGOR **penc) 470280304Sjkim{ 471280304Sjkim if (penc) 472280304Sjkim *penc = ri->key_enc_algor; 473280304Sjkim} 474238405Sjkim 47555714SkrisPKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509) 476280304Sjkim{ 477280304Sjkim PKCS7_RECIP_INFO *ri; 47855714Skris 479280304Sjkim if ((ri = PKCS7_RECIP_INFO_new()) == NULL) 480280304Sjkim goto err; 481280304Sjkim if (!PKCS7_RECIP_INFO_set(ri, x509)) 482280304Sjkim goto err; 483280304Sjkim if (!PKCS7_add_recipient_info(p7, ri)) 484280304Sjkim goto err; 485280304Sjkim return ri; 486280304Sjkim err: 487280304Sjkim if (ri) 488280304Sjkim PKCS7_RECIP_INFO_free(ri); 489280304Sjkim return NULL; 490280304Sjkim} 49155714Skris 49255714Skrisint PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri) 493280304Sjkim{ 494280304Sjkim int i; 495280304Sjkim STACK_OF(PKCS7_RECIP_INFO) *sk; 49655714Skris 497280304Sjkim i = OBJ_obj2nid(p7->type); 498280304Sjkim switch (i) { 499280304Sjkim case NID_pkcs7_signedAndEnveloped: 500280304Sjkim sk = p7->d.signed_and_enveloped->recipientinfo; 501280304Sjkim break; 502280304Sjkim case NID_pkcs7_enveloped: 503280304Sjkim sk = p7->d.enveloped->recipientinfo; 504280304Sjkim break; 505280304Sjkim default: 506280304Sjkim PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO, 507280304Sjkim PKCS7_R_WRONG_CONTENT_TYPE); 508280304Sjkim return (0); 509280304Sjkim } 51055714Skris 511280304Sjkim if (!sk_PKCS7_RECIP_INFO_push(sk, ri)) 512280304Sjkim return 0; 513280304Sjkim return (1); 514280304Sjkim} 51555714Skris 51655714Skrisint PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509) 517280304Sjkim{ 518280304Sjkim int ret; 519280304Sjkim EVP_PKEY *pkey = NULL; 520280304Sjkim if (!ASN1_INTEGER_set(p7i->version, 0)) 521280304Sjkim return 0; 522280304Sjkim if (!X509_NAME_set(&p7i->issuer_and_serial->issuer, 523280304Sjkim X509_get_issuer_name(x509))) 524280304Sjkim return 0; 52555714Skris 526280304Sjkim M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial); 527280304Sjkim if (!(p7i->issuer_and_serial->serial = 528280304Sjkim M_ASN1_INTEGER_dup(X509_get_serialNumber(x509)))) 529280304Sjkim return 0; 53055714Skris 531280304Sjkim pkey = X509_get_pubkey(x509); 53255714Skris 533280304Sjkim if (!pkey || !pkey->ameth || !pkey->ameth->pkey_ctrl) { 534280304Sjkim PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET, 535280304Sjkim PKCS7_R_ENCRYPTION_NOT_SUPPORTED_FOR_THIS_KEY_TYPE); 536280304Sjkim goto err; 537280304Sjkim } 538238405Sjkim 539280304Sjkim ret = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_PKCS7_ENCRYPT, 0, p7i); 540280304Sjkim if (ret == -2) { 541280304Sjkim PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET, 542280304Sjkim PKCS7_R_ENCRYPTION_NOT_SUPPORTED_FOR_THIS_KEY_TYPE); 543280304Sjkim goto err; 544280304Sjkim } 545280304Sjkim if (ret <= 0) { 546280304Sjkim PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET, 547280304Sjkim PKCS7_R_ENCRYPTION_CTRL_FAILURE); 548280304Sjkim goto err; 549280304Sjkim } 550238405Sjkim 551280304Sjkim EVP_PKEY_free(pkey); 552238405Sjkim 553280304Sjkim CRYPTO_add(&x509->references, 1, CRYPTO_LOCK_X509); 554280304Sjkim p7i->cert = x509; 55555714Skris 556280304Sjkim return 1; 557238405Sjkim 558280304Sjkim err: 559280304Sjkim if (pkey) 560280304Sjkim EVP_PKEY_free(pkey); 561280304Sjkim return 0; 562280304Sjkim} 56355714Skris 56455714SkrisX509 *PKCS7_cert_from_signer_info(PKCS7 *p7, PKCS7_SIGNER_INFO *si) 565280304Sjkim{ 566280304Sjkim if (PKCS7_type_is_signed(p7)) 567280304Sjkim return (X509_find_by_issuer_and_serial(p7->d.sign->cert, 568280304Sjkim si->issuer_and_serial->issuer, 569280304Sjkim si-> 570280304Sjkim issuer_and_serial->serial)); 571280304Sjkim else 572280304Sjkim return (NULL); 573280304Sjkim} 57455714Skris 57555714Skrisint PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher) 576280304Sjkim{ 577280304Sjkim int i; 578280304Sjkim PKCS7_ENC_CONTENT *ec; 57955714Skris 580280304Sjkim i = OBJ_obj2nid(p7->type); 581280304Sjkim switch (i) { 582280304Sjkim case NID_pkcs7_signedAndEnveloped: 583280304Sjkim ec = p7->d.signed_and_enveloped->enc_data; 584280304Sjkim break; 585280304Sjkim case NID_pkcs7_enveloped: 586280304Sjkim ec = p7->d.enveloped->enc_data; 587280304Sjkim break; 588280304Sjkim default: 589280304Sjkim PKCS7err(PKCS7_F_PKCS7_SET_CIPHER, PKCS7_R_WRONG_CONTENT_TYPE); 590280304Sjkim return (0); 591280304Sjkim } 59255714Skris 593280304Sjkim /* Check cipher OID exists and has data in it */ 594280304Sjkim i = EVP_CIPHER_type(cipher); 595280304Sjkim if (i == NID_undef) { 596280304Sjkim PKCS7err(PKCS7_F_PKCS7_SET_CIPHER, 597280304Sjkim PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER); 598280304Sjkim return (0); 599280304Sjkim } 60055714Skris 601280304Sjkim ec->cipher = cipher; 602280304Sjkim return 1; 603280304Sjkim} 60455714Skris 605238405Sjkimint PKCS7_stream(unsigned char ***boundary, PKCS7 *p7) 606280304Sjkim{ 607280304Sjkim ASN1_OCTET_STRING *os = NULL; 608238405Sjkim 609280304Sjkim switch (OBJ_obj2nid(p7->type)) { 610280304Sjkim case NID_pkcs7_data: 611280304Sjkim os = p7->d.data; 612280304Sjkim break; 613238405Sjkim 614280304Sjkim case NID_pkcs7_signedAndEnveloped: 615280304Sjkim os = p7->d.signed_and_enveloped->enc_data->enc_data; 616280304Sjkim if (os == NULL) { 617280304Sjkim os = M_ASN1_OCTET_STRING_new(); 618280304Sjkim p7->d.signed_and_enveloped->enc_data->enc_data = os; 619280304Sjkim } 620280304Sjkim break; 621238405Sjkim 622280304Sjkim case NID_pkcs7_enveloped: 623280304Sjkim os = p7->d.enveloped->enc_data->enc_data; 624280304Sjkim if (os == NULL) { 625280304Sjkim os = M_ASN1_OCTET_STRING_new(); 626280304Sjkim p7->d.enveloped->enc_data->enc_data = os; 627280304Sjkim } 628280304Sjkim break; 629238405Sjkim 630280304Sjkim case NID_pkcs7_signed: 631280304Sjkim os = p7->d.sign->contents->d.data; 632280304Sjkim break; 633238405Sjkim 634280304Sjkim default: 635280304Sjkim os = NULL; 636280304Sjkim break; 637280304Sjkim } 638238405Sjkim 639280304Sjkim if (os == NULL) 640280304Sjkim return 0; 641238405Sjkim 642280304Sjkim os->flags |= ASN1_STRING_FLAG_NDEF; 643280304Sjkim *boundary = &os->data; 644280304Sjkim 645280304Sjkim return 1; 646280304Sjkim} 647