2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (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 "crypto/asn1.h"
15 #include "crypto/evp.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
== NULL
|| p7
->d
.sign
->contents
->d
.ptr
== NULL
)
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 /* unfortunately cannot constify BIO_new_NDEF() due to this and CMS_stream() */
548 int PKCS7_stream(unsigned char ***boundary
, PKCS7
*p7
)
550 ASN1_OCTET_STRING
*os
= NULL
;
552 switch (OBJ_obj2nid(p7
->type
)) {
557 case NID_pkcs7_signedAndEnveloped
:
558 os
= p7
->d
.signed_and_enveloped
->enc_data
->enc_data
;
560 os
= ASN1_OCTET_STRING_new();
561 p7
->d
.signed_and_enveloped
->enc_data
->enc_data
= os
;
565 case NID_pkcs7_enveloped
:
566 os
= p7
->d
.enveloped
->enc_data
->enc_data
;
568 os
= ASN1_OCTET_STRING_new();
569 p7
->d
.enveloped
->enc_data
->enc_data
= os
;
573 case NID_pkcs7_signed
:
574 os
= p7
->d
.sign
->contents
->d
.data
;
585 os
->flags
|= ASN1_STRING_FLAG_NDEF
;
586 *boundary
= &os
->data
;