1 /* crypto/pkcs7/pk7_lib.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
60 #include "internal/cryptlib.h"
61 #include <openssl/objects.h>
62 #include <openssl/x509.h>
63 #include "internal/asn1_int.h"
64 #include "internal/evp_int.h"
66 long PKCS7_ctrl(PKCS7
*p7
, int cmd
, long larg
, char *parg
)
71 nid
= OBJ_obj2nid(p7
->type
);
74 /* NOTE(emilia): does not support detached digested data. */
75 case PKCS7_OP_SET_DETACHED_SIGNATURE
:
76 if (nid
== NID_pkcs7_signed
) {
77 ret
= p7
->detached
= (int)larg
;
78 if (ret
&& PKCS7_type_is_data(p7
->d
.sign
->contents
)) {
79 ASN1_OCTET_STRING
*os
;
80 os
= p7
->d
.sign
->contents
->d
.data
;
81 ASN1_OCTET_STRING_free(os
);
82 p7
->d
.sign
->contents
->d
.data
= NULL
;
85 PKCS7err(PKCS7_F_PKCS7_CTRL
,
86 PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE
);
90 case PKCS7_OP_GET_DETACHED_SIGNATURE
:
91 if (nid
== NID_pkcs7_signed
) {
92 if (!p7
->d
.sign
|| !p7
->d
.sign
->contents
->d
.ptr
)
99 PKCS7err(PKCS7_F_PKCS7_CTRL
,
100 PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE
);
106 PKCS7err(PKCS7_F_PKCS7_CTRL
, PKCS7_R_UNKNOWN_OPERATION
);
112 int PKCS7_content_new(PKCS7
*p7
, int type
)
116 if ((ret
= PKCS7_new()) == NULL
)
118 if (!PKCS7_set_type(ret
, type
))
120 if (!PKCS7_set_content(p7
, ret
))
129 int PKCS7_set_content(PKCS7
*p7
, PKCS7
*p7_data
)
133 i
= OBJ_obj2nid(p7
->type
);
135 case NID_pkcs7_signed
:
136 PKCS7_free(p7
->d
.sign
->contents
);
137 p7
->d
.sign
->contents
= p7_data
;
139 case NID_pkcs7_digest
:
140 PKCS7_free(p7
->d
.digest
->contents
);
141 p7
->d
.digest
->contents
= p7_data
;
144 case NID_pkcs7_enveloped
:
145 case NID_pkcs7_signedAndEnveloped
:
146 case NID_pkcs7_encrypted
:
148 PKCS7err(PKCS7_F_PKCS7_SET_CONTENT
, PKCS7_R_UNSUPPORTED_CONTENT_TYPE
);
156 int PKCS7_set_type(PKCS7
*p7
, int type
)
161 * PKCS7_content_free(p7);
163 obj
= OBJ_nid2obj(type
); /* will not fail */
166 case NID_pkcs7_signed
:
168 if ((p7
->d
.sign
= PKCS7_SIGNED_new()) == NULL
)
170 if (!ASN1_INTEGER_set(p7
->d
.sign
->version
, 1)) {
171 PKCS7_SIGNED_free(p7
->d
.sign
);
178 if ((p7
->d
.data
= ASN1_OCTET_STRING_new()) == NULL
)
181 case NID_pkcs7_signedAndEnveloped
:
183 if ((p7
->d
.signed_and_enveloped
= PKCS7_SIGN_ENVELOPE_new())
186 ASN1_INTEGER_set(p7
->d
.signed_and_enveloped
->version
, 1);
187 if (!ASN1_INTEGER_set(p7
->d
.signed_and_enveloped
->version
, 1))
189 p7
->d
.signed_and_enveloped
->enc_data
->content_type
190 = OBJ_nid2obj(NID_pkcs7_data
);
192 case NID_pkcs7_enveloped
:
194 if ((p7
->d
.enveloped
= PKCS7_ENVELOPE_new())
197 if (!ASN1_INTEGER_set(p7
->d
.enveloped
->version
, 0))
199 p7
->d
.enveloped
->enc_data
->content_type
= OBJ_nid2obj(NID_pkcs7_data
);
201 case NID_pkcs7_encrypted
:
203 if ((p7
->d
.encrypted
= PKCS7_ENCRYPT_new())
206 if (!ASN1_INTEGER_set(p7
->d
.encrypted
->version
, 0))
208 p7
->d
.encrypted
->enc_data
->content_type
= OBJ_nid2obj(NID_pkcs7_data
);
211 case NID_pkcs7_digest
:
213 if ((p7
->d
.digest
= PKCS7_DIGEST_new())
216 if (!ASN1_INTEGER_set(p7
->d
.digest
->version
, 0))
220 PKCS7err(PKCS7_F_PKCS7_SET_TYPE
, PKCS7_R_UNSUPPORTED_CONTENT_TYPE
);
228 int PKCS7_set0_type_other(PKCS7
*p7
, int type
, ASN1_TYPE
*other
)
230 p7
->type
= OBJ_nid2obj(type
);
235 int PKCS7_add_signer(PKCS7
*p7
, PKCS7_SIGNER_INFO
*psi
)
239 STACK_OF(PKCS7_SIGNER_INFO
) *signer_sk
;
240 STACK_OF(X509_ALGOR
) *md_sk
;
242 i
= OBJ_obj2nid(p7
->type
);
244 case NID_pkcs7_signed
:
245 signer_sk
= p7
->d
.sign
->signer_info
;
246 md_sk
= p7
->d
.sign
->md_algs
;
248 case NID_pkcs7_signedAndEnveloped
:
249 signer_sk
= p7
->d
.signed_and_enveloped
->signer_info
;
250 md_sk
= p7
->d
.signed_and_enveloped
->md_algs
;
253 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER
, PKCS7_R_WRONG_CONTENT_TYPE
);
257 nid
= OBJ_obj2nid(psi
->digest_alg
->algorithm
);
259 /* If the digest is not currently listed, add it */
261 for (i
= 0; i
< sk_X509_ALGOR_num(md_sk
); i
++) {
262 alg
= sk_X509_ALGOR_value(md_sk
, i
);
263 if (OBJ_obj2nid(alg
->algorithm
) == nid
) {
268 if (!j
) { /* we need to add another algorithm */
269 if ((alg
= X509_ALGOR_new()) == NULL
270 || (alg
->parameter
= ASN1_TYPE_new()) == NULL
) {
271 X509_ALGOR_free(alg
);
272 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER
, ERR_R_MALLOC_FAILURE
);
275 alg
->algorithm
= OBJ_nid2obj(nid
);
276 alg
->parameter
->type
= V_ASN1_NULL
;
277 if (!sk_X509_ALGOR_push(md_sk
, alg
)) {
278 X509_ALGOR_free(alg
);
283 if (!sk_PKCS7_SIGNER_INFO_push(signer_sk
, psi
))
288 int PKCS7_add_certificate(PKCS7
*p7
, X509
*x509
)
293 i
= OBJ_obj2nid(p7
->type
);
295 case NID_pkcs7_signed
:
296 sk
= &(p7
->d
.sign
->cert
);
298 case NID_pkcs7_signedAndEnveloped
:
299 sk
= &(p7
->d
.signed_and_enveloped
->cert
);
302 PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE
, PKCS7_R_WRONG_CONTENT_TYPE
);
307 *sk
= sk_X509_new_null();
309 PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE
, ERR_R_MALLOC_FAILURE
);
313 if (!sk_X509_push(*sk
, x509
)) {
320 int PKCS7_add_crl(PKCS7
*p7
, X509_CRL
*crl
)
323 STACK_OF(X509_CRL
) **sk
;
325 i
= OBJ_obj2nid(p7
->type
);
327 case NID_pkcs7_signed
:
328 sk
= &(p7
->d
.sign
->crl
);
330 case NID_pkcs7_signedAndEnveloped
:
331 sk
= &(p7
->d
.signed_and_enveloped
->crl
);
334 PKCS7err(PKCS7_F_PKCS7_ADD_CRL
, PKCS7_R_WRONG_CONTENT_TYPE
);
339 *sk
= sk_X509_CRL_new_null();
341 PKCS7err(PKCS7_F_PKCS7_ADD_CRL
, ERR_R_MALLOC_FAILURE
);
345 X509_CRL_up_ref(crl
);
346 if (!sk_X509_CRL_push(*sk
, crl
)) {
353 int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO
*p7i
, X509
*x509
, EVP_PKEY
*pkey
,
358 /* We now need to add another PKCS7_SIGNER_INFO entry */
359 if (!ASN1_INTEGER_set(p7i
->version
, 1))
361 if (!X509_NAME_set(&p7i
->issuer_and_serial
->issuer
,
362 X509_get_issuer_name(x509
)))
366 * because ASN1_INTEGER_set is used to set a 'long' we will do things the
369 ASN1_INTEGER_free(p7i
->issuer_and_serial
->serial
);
370 if (!(p7i
->issuer_and_serial
->serial
=
371 ASN1_INTEGER_dup(X509_get_serialNumber(x509
))))
374 /* lets keep the pkey around for a while */
375 EVP_PKEY_up_ref(pkey
);
378 /* Set the algorithms */
380 X509_ALGOR_set0(p7i
->digest_alg
, OBJ_nid2obj(EVP_MD_type(dgst
)),
383 if (pkey
->ameth
&& pkey
->ameth
->pkey_ctrl
) {
384 ret
= pkey
->ameth
->pkey_ctrl(pkey
, ASN1_PKEY_CTRL_PKCS7_SIGN
, 0, p7i
);
388 PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SET
,
389 PKCS7_R_SIGNING_CTRL_FAILURE
);
393 PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SET
,
394 PKCS7_R_SIGNING_NOT_SUPPORTED_FOR_THIS_KEY_TYPE
);
399 PKCS7_SIGNER_INFO
*PKCS7_add_signature(PKCS7
*p7
, X509
*x509
, EVP_PKEY
*pkey
,
402 PKCS7_SIGNER_INFO
*si
= NULL
;
406 if (EVP_PKEY_get_default_digest_nid(pkey
, &def_nid
) <= 0)
408 dgst
= EVP_get_digestbynid(def_nid
);
410 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNATURE
, PKCS7_R_NO_DEFAULT_DIGEST
);
415 if ((si
= PKCS7_SIGNER_INFO_new()) == NULL
)
417 if (!PKCS7_SIGNER_INFO_set(si
, x509
, pkey
, dgst
))
419 if (!PKCS7_add_signer(p7
, si
))
423 PKCS7_SIGNER_INFO_free(si
);
427 int PKCS7_set_digest(PKCS7
*p7
, const EVP_MD
*md
)
429 if (PKCS7_type_is_digest(p7
)) {
430 if ((p7
->d
.digest
->md
->parameter
= ASN1_TYPE_new()) == NULL
) {
431 PKCS7err(PKCS7_F_PKCS7_SET_DIGEST
, ERR_R_MALLOC_FAILURE
);
434 p7
->d
.digest
->md
->parameter
->type
= V_ASN1_NULL
;
435 p7
->d
.digest
->md
->algorithm
= OBJ_nid2obj(EVP_MD_nid(md
));
439 PKCS7err(PKCS7_F_PKCS7_SET_DIGEST
, PKCS7_R_WRONG_CONTENT_TYPE
);
443 STACK_OF(PKCS7_SIGNER_INFO
) *PKCS7_get_signer_info(PKCS7
*p7
)
445 if (p7
== NULL
|| p7
->d
.ptr
== NULL
)
447 if (PKCS7_type_is_signed(p7
)) {
448 return (p7
->d
.sign
->signer_info
);
449 } else if (PKCS7_type_is_signedAndEnveloped(p7
)) {
450 return (p7
->d
.signed_and_enveloped
->signer_info
);
455 void PKCS7_SIGNER_INFO_get0_algs(PKCS7_SIGNER_INFO
*si
, EVP_PKEY
**pk
,
456 X509_ALGOR
**pdig
, X509_ALGOR
**psig
)
461 *pdig
= si
->digest_alg
;
463 *psig
= si
->digest_enc_alg
;
466 void PKCS7_RECIP_INFO_get0_alg(PKCS7_RECIP_INFO
*ri
, X509_ALGOR
**penc
)
469 *penc
= ri
->key_enc_algor
;
472 PKCS7_RECIP_INFO
*PKCS7_add_recipient(PKCS7
*p7
, X509
*x509
)
474 PKCS7_RECIP_INFO
*ri
;
476 if ((ri
= PKCS7_RECIP_INFO_new()) == NULL
)
478 if (!PKCS7_RECIP_INFO_set(ri
, x509
))
480 if (!PKCS7_add_recipient_info(p7
, ri
))
484 PKCS7_RECIP_INFO_free(ri
);
488 int PKCS7_add_recipient_info(PKCS7
*p7
, PKCS7_RECIP_INFO
*ri
)
491 STACK_OF(PKCS7_RECIP_INFO
) *sk
;
493 i
= OBJ_obj2nid(p7
->type
);
495 case NID_pkcs7_signedAndEnveloped
:
496 sk
= p7
->d
.signed_and_enveloped
->recipientinfo
;
498 case NID_pkcs7_enveloped
:
499 sk
= p7
->d
.enveloped
->recipientinfo
;
502 PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO
,
503 PKCS7_R_WRONG_CONTENT_TYPE
);
507 if (!sk_PKCS7_RECIP_INFO_push(sk
, ri
))
512 int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO
*p7i
, X509
*x509
)
515 EVP_PKEY
*pkey
= NULL
;
516 if (!ASN1_INTEGER_set(p7i
->version
, 0))
518 if (!X509_NAME_set(&p7i
->issuer_and_serial
->issuer
,
519 X509_get_issuer_name(x509
)))
522 ASN1_INTEGER_free(p7i
->issuer_and_serial
->serial
);
523 if (!(p7i
->issuer_and_serial
->serial
=
524 ASN1_INTEGER_dup(X509_get_serialNumber(x509
))))
527 pkey
= X509_get0_pubkey(x509
);
529 if (!pkey
|| !pkey
->ameth
|| !pkey
->ameth
->pkey_ctrl
) {
530 PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET
,
531 PKCS7_R_ENCRYPTION_NOT_SUPPORTED_FOR_THIS_KEY_TYPE
);
535 ret
= pkey
->ameth
->pkey_ctrl(pkey
, ASN1_PKEY_CTRL_PKCS7_ENCRYPT
, 0, p7i
);
537 PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET
,
538 PKCS7_R_ENCRYPTION_NOT_SUPPORTED_FOR_THIS_KEY_TYPE
);
542 PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET
,
543 PKCS7_R_ENCRYPTION_CTRL_FAILURE
);
556 X509
*PKCS7_cert_from_signer_info(PKCS7
*p7
, PKCS7_SIGNER_INFO
*si
)
558 if (PKCS7_type_is_signed(p7
))
559 return (X509_find_by_issuer_and_serial(p7
->d
.sign
->cert
,
560 si
->issuer_and_serial
->issuer
,
562 issuer_and_serial
->serial
));
567 int PKCS7_set_cipher(PKCS7
*p7
, const EVP_CIPHER
*cipher
)
570 PKCS7_ENC_CONTENT
*ec
;
572 i
= OBJ_obj2nid(p7
->type
);
574 case NID_pkcs7_signedAndEnveloped
:
575 ec
= p7
->d
.signed_and_enveloped
->enc_data
;
577 case NID_pkcs7_enveloped
:
578 ec
= p7
->d
.enveloped
->enc_data
;
581 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER
, PKCS7_R_WRONG_CONTENT_TYPE
);
585 /* Check cipher OID exists and has data in it */
586 i
= EVP_CIPHER_type(cipher
);
587 if (i
== NID_undef
) {
588 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER
,
589 PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER
);
597 int PKCS7_stream(unsigned char ***boundary
, PKCS7
*p7
)
599 ASN1_OCTET_STRING
*os
= NULL
;
601 switch (OBJ_obj2nid(p7
->type
)) {
606 case NID_pkcs7_signedAndEnveloped
:
607 os
= p7
->d
.signed_and_enveloped
->enc_data
->enc_data
;
609 os
= ASN1_OCTET_STRING_new();
610 p7
->d
.signed_and_enveloped
->enc_data
->enc_data
= os
;
614 case NID_pkcs7_enveloped
:
615 os
= p7
->d
.enveloped
->enc_data
->enc_data
;
617 os
= ASN1_OCTET_STRING_new();
618 p7
->d
.enveloped
->enc_data
->enc_data
= os
;
622 case NID_pkcs7_signed
:
623 os
= p7
->d
.sign
->contents
->d
.data
;
634 os
->flags
|= ASN1_STRING_FLAG_NDEF
;
635 *boundary
= &os
->data
;