2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 #include "internal/cryptlib.h"
12 #include <openssl/objects.h>
13 #include <openssl/x509.h>
14 #include "internal/asn1_int.h"
15 #include "internal/evp_int.h"
17 long PKCS7_ctrl(PKCS7 *p7, int cmd, long larg, char *parg)
22 nid = OBJ_obj2nid(p7->type);
25 /* NOTE(emilia): does not support detached digested data. */
26 case PKCS7_OP_SET_DETACHED_SIGNATURE:
27 if (nid == NID_pkcs7_signed) {
28 ret = p7->detached = (int)larg;
29 if (ret && PKCS7_type_is_data(p7->d.sign->contents)) {
30 ASN1_OCTET_STRING *os;
31 os = p7->d.sign->contents->d.data;
32 ASN1_OCTET_STRING_free(os);
33 p7->d.sign->contents->d.data = NULL;
36 PKCS7err(PKCS7_F_PKCS7_CTRL,
37 PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
41 case PKCS7_OP_GET_DETACHED_SIGNATURE:
42 if (nid == NID_pkcs7_signed) {
43 if (!p7->d.sign || !p7->d.sign->contents->d.ptr)
50 PKCS7err(PKCS7_F_PKCS7_CTRL,
51 PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
57 PKCS7err(PKCS7_F_PKCS7_CTRL, PKCS7_R_UNKNOWN_OPERATION);
63 int PKCS7_content_new(PKCS7 *p7, int type)
67 if ((ret = PKCS7_new()) == NULL)
69 if (!PKCS7_set_type(ret, type))
71 if (!PKCS7_set_content(p7, ret))
80 int PKCS7_set_content(PKCS7 *p7, PKCS7 *p7_data)
84 i = OBJ_obj2nid(p7->type);
86 case NID_pkcs7_signed:
87 PKCS7_free(p7->d.sign->contents);
88 p7->d.sign->contents = p7_data;
90 case NID_pkcs7_digest:
91 PKCS7_free(p7->d.digest->contents);
92 p7->d.digest->contents = p7_data;
95 case NID_pkcs7_enveloped:
96 case NID_pkcs7_signedAndEnveloped:
97 case NID_pkcs7_encrypted:
99 PKCS7err(PKCS7_F_PKCS7_SET_CONTENT, PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
107 int PKCS7_set_type(PKCS7 *p7, int type)
112 * PKCS7_content_free(p7);
114 obj = OBJ_nid2obj(type); /* will not fail */
117 case NID_pkcs7_signed:
119 if ((p7->d.sign = PKCS7_SIGNED_new()) == NULL)
121 if (!ASN1_INTEGER_set(p7->d.sign->version, 1)) {
122 PKCS7_SIGNED_free(p7->d.sign);
129 if ((p7->d.data = ASN1_OCTET_STRING_new()) == NULL)
132 case NID_pkcs7_signedAndEnveloped:
134 if ((p7->d.signed_and_enveloped = PKCS7_SIGN_ENVELOPE_new())
137 if (!ASN1_INTEGER_set(p7->d.signed_and_enveloped->version, 1))
139 p7->d.signed_and_enveloped->enc_data->content_type
140 = OBJ_nid2obj(NID_pkcs7_data);
142 case NID_pkcs7_enveloped:
144 if ((p7->d.enveloped = PKCS7_ENVELOPE_new())
147 if (!ASN1_INTEGER_set(p7->d.enveloped->version, 0))
149 p7->d.enveloped->enc_data->content_type = OBJ_nid2obj(NID_pkcs7_data);
151 case NID_pkcs7_encrypted:
153 if ((p7->d.encrypted = PKCS7_ENCRYPT_new())
156 if (!ASN1_INTEGER_set(p7->d.encrypted->version, 0))
158 p7->d.encrypted->enc_data->content_type = OBJ_nid2obj(NID_pkcs7_data);
161 case NID_pkcs7_digest:
163 if ((p7->d.digest = PKCS7_DIGEST_new())
166 if (!ASN1_INTEGER_set(p7->d.digest->version, 0))
170 PKCS7err(PKCS7_F_PKCS7_SET_TYPE, PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
178 int PKCS7_set0_type_other(PKCS7 *p7, int type, ASN1_TYPE *other)
180 p7->type = OBJ_nid2obj(type);
185 int PKCS7_add_signer(PKCS7 *p7, PKCS7_SIGNER_INFO *psi)
189 STACK_OF(PKCS7_SIGNER_INFO) *signer_sk;
190 STACK_OF(X509_ALGOR) *md_sk;
192 i = OBJ_obj2nid(p7->type);
194 case NID_pkcs7_signed:
195 signer_sk = p7->d.sign->signer_info;
196 md_sk = p7->d.sign->md_algs;
198 case NID_pkcs7_signedAndEnveloped:
199 signer_sk = p7->d.signed_and_enveloped->signer_info;
200 md_sk = p7->d.signed_and_enveloped->md_algs;
203 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER, PKCS7_R_WRONG_CONTENT_TYPE);
207 nid = OBJ_obj2nid(psi->digest_alg->algorithm);
209 /* If the digest is not currently listed, add it */
211 for (i = 0; i < sk_X509_ALGOR_num(md_sk); i++) {
212 alg = sk_X509_ALGOR_value(md_sk, i);
213 if (OBJ_obj2nid(alg->algorithm) == nid) {
218 if (!j) { /* we need to add another algorithm */
219 if ((alg = X509_ALGOR_new()) == NULL
220 || (alg->parameter = ASN1_TYPE_new()) == NULL) {
221 X509_ALGOR_free(alg);
222 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER, ERR_R_MALLOC_FAILURE);
225 alg->algorithm = OBJ_nid2obj(nid);
226 alg->parameter->type = V_ASN1_NULL;
227 if (!sk_X509_ALGOR_push(md_sk, alg)) {
228 X509_ALGOR_free(alg);
233 if (!sk_PKCS7_SIGNER_INFO_push(signer_sk, psi))
238 int PKCS7_add_certificate(PKCS7 *p7, X509 *x509)
243 i = OBJ_obj2nid(p7->type);
245 case NID_pkcs7_signed:
246 sk = &(p7->d.sign->cert);
248 case NID_pkcs7_signedAndEnveloped:
249 sk = &(p7->d.signed_and_enveloped->cert);
252 PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE, PKCS7_R_WRONG_CONTENT_TYPE);
257 *sk = sk_X509_new_null();
259 PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE, ERR_R_MALLOC_FAILURE);
263 if (!sk_X509_push(*sk, x509)) {
270 int PKCS7_add_crl(PKCS7 *p7, X509_CRL *crl)
273 STACK_OF(X509_CRL) **sk;
275 i = OBJ_obj2nid(p7->type);
277 case NID_pkcs7_signed:
278 sk = &(p7->d.sign->crl);
280 case NID_pkcs7_signedAndEnveloped:
281 sk = &(p7->d.signed_and_enveloped->crl);
284 PKCS7err(PKCS7_F_PKCS7_ADD_CRL, PKCS7_R_WRONG_CONTENT_TYPE);
289 *sk = sk_X509_CRL_new_null();
291 PKCS7err(PKCS7_F_PKCS7_ADD_CRL, ERR_R_MALLOC_FAILURE);
295 X509_CRL_up_ref(crl);
296 if (!sk_X509_CRL_push(*sk, crl)) {
303 int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey,
308 /* We now need to add another PKCS7_SIGNER_INFO entry */
309 if (!ASN1_INTEGER_set(p7i->version, 1))
311 if (!X509_NAME_set(&p7i->issuer_and_serial->issuer,
312 X509_get_issuer_name(x509)))
316 * because ASN1_INTEGER_set is used to set a 'long' we will do things the
319 ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
320 if (!(p7i->issuer_and_serial->serial =
321 ASN1_INTEGER_dup(X509_get_serialNumber(x509))))
324 /* lets keep the pkey around for a while */
325 EVP_PKEY_up_ref(pkey);
328 /* Set the algorithms */
330 X509_ALGOR_set0(p7i->digest_alg, OBJ_nid2obj(EVP_MD_type(dgst)),
333 if (pkey->ameth && pkey->ameth->pkey_ctrl) {
334 ret = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_PKCS7_SIGN, 0, p7i);
338 PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SET,
339 PKCS7_R_SIGNING_CTRL_FAILURE);
343 PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SET,
344 PKCS7_R_SIGNING_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
349 PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509, EVP_PKEY *pkey,
352 PKCS7_SIGNER_INFO *si = NULL;
356 if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) <= 0)
358 dgst = EVP_get_digestbynid(def_nid);
360 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNATURE, PKCS7_R_NO_DEFAULT_DIGEST);
365 if ((si = PKCS7_SIGNER_INFO_new()) == NULL)
367 if (!PKCS7_SIGNER_INFO_set(si, x509, pkey, dgst))
369 if (!PKCS7_add_signer(p7, si))
373 PKCS7_SIGNER_INFO_free(si);
377 int PKCS7_set_digest(PKCS7 *p7, const EVP_MD *md)
379 if (PKCS7_type_is_digest(p7)) {
380 if ((p7->d.digest->md->parameter = ASN1_TYPE_new()) == NULL) {
381 PKCS7err(PKCS7_F_PKCS7_SET_DIGEST, ERR_R_MALLOC_FAILURE);
384 p7->d.digest->md->parameter->type = V_ASN1_NULL;
385 p7->d.digest->md->algorithm = OBJ_nid2obj(EVP_MD_nid(md));
389 PKCS7err(PKCS7_F_PKCS7_SET_DIGEST, PKCS7_R_WRONG_CONTENT_TYPE);
393 STACK_OF(PKCS7_SIGNER_INFO) *PKCS7_get_signer_info(PKCS7 *p7)
395 if (p7 == NULL || p7->d.ptr == NULL)
397 if (PKCS7_type_is_signed(p7)) {
398 return p7->d.sign->signer_info;
399 } else if (PKCS7_type_is_signedAndEnveloped(p7)) {
400 return p7->d.signed_and_enveloped->signer_info;
405 void PKCS7_SIGNER_INFO_get0_algs(PKCS7_SIGNER_INFO *si, EVP_PKEY **pk,
406 X509_ALGOR **pdig, X509_ALGOR **psig)
411 *pdig = si->digest_alg;
413 *psig = si->digest_enc_alg;
416 void PKCS7_RECIP_INFO_get0_alg(PKCS7_RECIP_INFO *ri, X509_ALGOR **penc)
419 *penc = ri->key_enc_algor;
422 PKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509)
424 PKCS7_RECIP_INFO *ri;
426 if ((ri = PKCS7_RECIP_INFO_new()) == NULL)
428 if (!PKCS7_RECIP_INFO_set(ri, x509))
430 if (!PKCS7_add_recipient_info(p7, ri))
434 PKCS7_RECIP_INFO_free(ri);
438 int PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri)
441 STACK_OF(PKCS7_RECIP_INFO) *sk;
443 i = OBJ_obj2nid(p7->type);
445 case NID_pkcs7_signedAndEnveloped:
446 sk = p7->d.signed_and_enveloped->recipientinfo;
448 case NID_pkcs7_enveloped:
449 sk = p7->d.enveloped->recipientinfo;
452 PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO,
453 PKCS7_R_WRONG_CONTENT_TYPE);
457 if (!sk_PKCS7_RECIP_INFO_push(sk, ri))
462 int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509)
465 EVP_PKEY *pkey = NULL;
466 if (!ASN1_INTEGER_set(p7i->version, 0))
468 if (!X509_NAME_set(&p7i->issuer_and_serial->issuer,
469 X509_get_issuer_name(x509)))
472 ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
473 if (!(p7i->issuer_and_serial->serial =
474 ASN1_INTEGER_dup(X509_get_serialNumber(x509))))
477 pkey = X509_get0_pubkey(x509);
479 if (!pkey || !pkey->ameth || !pkey->ameth->pkey_ctrl) {
480 PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET,
481 PKCS7_R_ENCRYPTION_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
485 ret = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_PKCS7_ENCRYPT, 0, p7i);
487 PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET,
488 PKCS7_R_ENCRYPTION_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
492 PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET,
493 PKCS7_R_ENCRYPTION_CTRL_FAILURE);
506 X509 *PKCS7_cert_from_signer_info(PKCS7 *p7, PKCS7_SIGNER_INFO *si)
508 if (PKCS7_type_is_signed(p7))
509 return (X509_find_by_issuer_and_serial(p7->d.sign->cert,
510 si->issuer_and_serial->issuer,
512 issuer_and_serial->serial));
517 int PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher)
520 PKCS7_ENC_CONTENT *ec;
522 i = OBJ_obj2nid(p7->type);
524 case NID_pkcs7_signedAndEnveloped:
525 ec = p7->d.signed_and_enveloped->enc_data;
527 case NID_pkcs7_enveloped:
528 ec = p7->d.enveloped->enc_data;
531 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER, PKCS7_R_WRONG_CONTENT_TYPE);
535 /* Check cipher OID exists and has data in it */
536 i = EVP_CIPHER_type(cipher);
537 if (i == NID_undef) {
538 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,
539 PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
547 int PKCS7_stream(unsigned char ***boundary, PKCS7 *p7)
549 ASN1_OCTET_STRING *os = NULL;
551 switch (OBJ_obj2nid(p7->type)) {
556 case NID_pkcs7_signedAndEnveloped:
557 os = p7->d.signed_and_enveloped->enc_data->enc_data;
559 os = ASN1_OCTET_STRING_new();
560 p7->d.signed_and_enveloped->enc_data->enc_data = os;
564 case NID_pkcs7_enveloped:
565 os = p7->d.enveloped->enc_data->enc_data;
567 os = ASN1_OCTET_STRING_new();
568 p7->d.enveloped->enc_data->enc_data = os;
572 case NID_pkcs7_signed:
573 os = p7->d.sign->contents->d.data;
584 os->flags |= ASN1_STRING_FLAG_NDEF;
585 *boundary = &os->data;