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.]
61 #include <openssl/objects.h>
62 #include <openssl/x509.h>
63 #include "asn1_locl.h"
65 long PKCS7_ctrl(PKCS7 *p7, int cmd, long larg, char *parg)
70 nid=OBJ_obj2nid(p7->type);
74 case PKCS7_OP_SET_DETACHED_SIGNATURE:
75 if (nid == NID_pkcs7_signed)
77 ret=p7->detached=(int)larg;
78 if (ret && PKCS7_type_is_data(p7->d.sign->contents))
80 ASN1_OCTET_STRING *os;
81 os=p7->d.sign->contents->d.data;
82 ASN1_OCTET_STRING_free(os);
83 p7->d.sign->contents->d.data = NULL;
88 PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
92 case PKCS7_OP_GET_DETACHED_SIGNATURE:
93 if (nid == NID_pkcs7_signed)
95 if(!p7->d.sign || !p7->d.sign->contents->d.ptr)
103 PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
109 PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_UNKNOWN_OPERATION);
115 int PKCS7_content_new(PKCS7 *p7, int type)
119 if ((ret=PKCS7_new()) == NULL) goto err;
120 if (!PKCS7_set_type(ret,type)) goto err;
121 if (!PKCS7_set_content(p7,ret)) goto err;
125 if (ret != NULL) PKCS7_free(ret);
129 int PKCS7_set_content(PKCS7 *p7, PKCS7 *p7_data)
133 i=OBJ_obj2nid(p7->type);
136 case NID_pkcs7_signed:
137 if (p7->d.sign->contents != NULL)
138 PKCS7_free(p7->d.sign->contents);
139 p7->d.sign->contents=p7_data;
141 case NID_pkcs7_digest:
142 if (p7->d.digest->contents != NULL)
143 PKCS7_free(p7->d.digest->contents);
144 p7->d.digest->contents=p7_data;
147 case NID_pkcs7_enveloped:
148 case NID_pkcs7_signedAndEnveloped:
149 case NID_pkcs7_encrypted:
151 PKCS7err(PKCS7_F_PKCS7_SET_CONTENT,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
159 int PKCS7_set_type(PKCS7 *p7, int type)
163 /*PKCS7_content_free(p7);*/
164 obj=OBJ_nid2obj(type); /* will not fail */
168 case NID_pkcs7_signed:
170 if ((p7->d.sign=PKCS7_SIGNED_new()) == NULL)
172 if (!ASN1_INTEGER_set(p7->d.sign->version,1))
174 PKCS7_SIGNED_free(p7->d.sign);
181 if ((p7->d.data=M_ASN1_OCTET_STRING_new()) == NULL)
184 case NID_pkcs7_signedAndEnveloped:
186 if ((p7->d.signed_and_enveloped=PKCS7_SIGN_ENVELOPE_new())
188 ASN1_INTEGER_set(p7->d.signed_and_enveloped->version,1);
189 if (!ASN1_INTEGER_set(p7->d.signed_and_enveloped->version,1))
191 p7->d.signed_and_enveloped->enc_data->content_type
192 = OBJ_nid2obj(NID_pkcs7_data);
194 case NID_pkcs7_enveloped:
196 if ((p7->d.enveloped=PKCS7_ENVELOPE_new())
198 if (!ASN1_INTEGER_set(p7->d.enveloped->version,0))
200 p7->d.enveloped->enc_data->content_type
201 = OBJ_nid2obj(NID_pkcs7_data);
203 case NID_pkcs7_encrypted:
205 if ((p7->d.encrypted=PKCS7_ENCRYPT_new())
207 if (!ASN1_INTEGER_set(p7->d.encrypted->version,0))
209 p7->d.encrypted->enc_data->content_type
210 = OBJ_nid2obj(NID_pkcs7_data);
213 case NID_pkcs7_digest:
215 if ((p7->d.digest=PKCS7_DIGEST_new())
217 if (!ASN1_INTEGER_set(p7->d.digest->version,0))
221 PKCS7err(PKCS7_F_PKCS7_SET_TYPE,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
229 int PKCS7_set0_type_other(PKCS7 *p7, int type, ASN1_TYPE *other)
231 p7->type = OBJ_nid2obj(type);
236 int PKCS7_add_signer(PKCS7 *p7, PKCS7_SIGNER_INFO *psi)
240 STACK_OF(PKCS7_SIGNER_INFO) *signer_sk;
241 STACK_OF(X509_ALGOR) *md_sk;
243 i=OBJ_obj2nid(p7->type);
246 case NID_pkcs7_signed:
247 signer_sk= p7->d.sign->signer_info;
248 md_sk= p7->d.sign->md_algs;
250 case NID_pkcs7_signedAndEnveloped:
251 signer_sk= p7->d.signed_and_enveloped->signer_info;
252 md_sk= p7->d.signed_and_enveloped->md_algs;
255 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,PKCS7_R_WRONG_CONTENT_TYPE);
259 nid=OBJ_obj2nid(psi->digest_alg->algorithm);
261 /* If the digest is not currently listed, add it */
263 for (i=0; i<sk_X509_ALGOR_num(md_sk); i++)
265 alg=sk_X509_ALGOR_value(md_sk,i);
266 if (OBJ_obj2nid(alg->algorithm) == nid)
272 if (!j) /* we need to add another algorithm */
274 if(!(alg=X509_ALGOR_new())
275 || !(alg->parameter = ASN1_TYPE_new()))
277 X509_ALGOR_free(alg);
278 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,ERR_R_MALLOC_FAILURE);
281 alg->algorithm=OBJ_nid2obj(nid);
282 alg->parameter->type = V_ASN1_NULL;
283 if (!sk_X509_ALGOR_push(md_sk,alg))
285 X509_ALGOR_free(alg);
290 if (!sk_PKCS7_SIGNER_INFO_push(signer_sk,psi))
295 int PKCS7_add_certificate(PKCS7 *p7, X509 *x509)
300 i=OBJ_obj2nid(p7->type);
303 case NID_pkcs7_signed:
304 sk= &(p7->d.sign->cert);
306 case NID_pkcs7_signedAndEnveloped:
307 sk= &(p7->d.signed_and_enveloped->cert);
310 PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE,PKCS7_R_WRONG_CONTENT_TYPE);
315 *sk=sk_X509_new_null();
318 PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE, ERR_R_MALLOC_FAILURE);
321 CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
322 if (!sk_X509_push(*sk,x509))
330 int PKCS7_add_crl(PKCS7 *p7, X509_CRL *crl)
333 STACK_OF(X509_CRL) **sk;
335 i=OBJ_obj2nid(p7->type);
338 case NID_pkcs7_signed:
339 sk= &(p7->d.sign->crl);
341 case NID_pkcs7_signedAndEnveloped:
342 sk= &(p7->d.signed_and_enveloped->crl);
345 PKCS7err(PKCS7_F_PKCS7_ADD_CRL,PKCS7_R_WRONG_CONTENT_TYPE);
350 *sk=sk_X509_CRL_new_null();
353 PKCS7err(PKCS7_F_PKCS7_ADD_CRL,ERR_R_MALLOC_FAILURE);
357 CRYPTO_add(&crl->references,1,CRYPTO_LOCK_X509_CRL);
358 if (!sk_X509_CRL_push(*sk,crl))
366 int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey,
371 /* We now need to add another PKCS7_SIGNER_INFO entry */
372 if (!ASN1_INTEGER_set(p7i->version,1))
374 if (!X509_NAME_set(&p7i->issuer_and_serial->issuer,
375 X509_get_issuer_name(x509)))
378 /* because ASN1_INTEGER_set is used to set a 'long' we will do
379 * things the ugly way. */
380 M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
381 if (!(p7i->issuer_and_serial->serial=
382 M_ASN1_INTEGER_dup(X509_get_serialNumber(x509))))
385 /* lets keep the pkey around for a while */
386 CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
389 /* Set the algorithms */
391 X509_ALGOR_set0(p7i->digest_alg, OBJ_nid2obj(EVP_MD_type(dgst)),
394 if (pkey->ameth && pkey->ameth->pkey_ctrl)
396 ret = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_PKCS7_SIGN,
402 PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SET,
403 PKCS7_R_SIGNING_CTRL_FAILURE);
407 PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SET,
408 PKCS7_R_SIGNING_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
413 PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509, EVP_PKEY *pkey,
416 PKCS7_SIGNER_INFO *si = NULL;
421 if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) <= 0)
423 dgst = EVP_get_digestbynid(def_nid);
426 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNATURE,
427 PKCS7_R_NO_DEFAULT_DIGEST);
432 if ((si=PKCS7_SIGNER_INFO_new()) == NULL) goto err;
433 if (!PKCS7_SIGNER_INFO_set(si,x509,pkey,dgst)) goto err;
434 if (!PKCS7_add_signer(p7,si)) goto err;
438 PKCS7_SIGNER_INFO_free(si);
442 int PKCS7_set_digest(PKCS7 *p7, const EVP_MD *md)
444 if (PKCS7_type_is_digest(p7))
446 if(!(p7->d.digest->md->parameter = ASN1_TYPE_new()))
448 PKCS7err(PKCS7_F_PKCS7_SET_DIGEST,ERR_R_MALLOC_FAILURE);
451 p7->d.digest->md->parameter->type = V_ASN1_NULL;
452 p7->d.digest->md->algorithm = OBJ_nid2obj(EVP_MD_nid(md));
456 PKCS7err(PKCS7_F_PKCS7_SET_DIGEST,PKCS7_R_WRONG_CONTENT_TYPE);
460 STACK_OF(PKCS7_SIGNER_INFO) *PKCS7_get_signer_info(PKCS7 *p7)
462 if (PKCS7_type_is_signed(p7))
464 return(p7->d.sign->signer_info);
466 else if (PKCS7_type_is_signedAndEnveloped(p7))
468 return(p7->d.signed_and_enveloped->signer_info);
474 void PKCS7_SIGNER_INFO_get0_algs(PKCS7_SIGNER_INFO *si, EVP_PKEY **pk,
475 X509_ALGOR **pdig, X509_ALGOR **psig)
480 *pdig = si->digest_alg;
482 *psig = si->digest_enc_alg;
485 void PKCS7_RECIP_INFO_get0_alg(PKCS7_RECIP_INFO *ri, X509_ALGOR **penc)
488 *penc = ri->key_enc_algor;
491 PKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509)
493 PKCS7_RECIP_INFO *ri;
495 if ((ri=PKCS7_RECIP_INFO_new()) == NULL) goto err;
496 if (!PKCS7_RECIP_INFO_set(ri,x509)) goto err;
497 if (!PKCS7_add_recipient_info(p7,ri)) goto err;
501 PKCS7_RECIP_INFO_free(ri);
505 int PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri)
508 STACK_OF(PKCS7_RECIP_INFO) *sk;
510 i=OBJ_obj2nid(p7->type);
513 case NID_pkcs7_signedAndEnveloped:
514 sk= p7->d.signed_and_enveloped->recipientinfo;
516 case NID_pkcs7_enveloped:
517 sk= p7->d.enveloped->recipientinfo;
520 PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO,PKCS7_R_WRONG_CONTENT_TYPE);
524 if (!sk_PKCS7_RECIP_INFO_push(sk,ri))
529 int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509)
532 EVP_PKEY *pkey = NULL;
533 if (!ASN1_INTEGER_set(p7i->version,0))
535 if (!X509_NAME_set(&p7i->issuer_and_serial->issuer,
536 X509_get_issuer_name(x509)))
539 M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
540 if (!(p7i->issuer_and_serial->serial=
541 M_ASN1_INTEGER_dup(X509_get_serialNumber(x509))))
544 pkey = X509_get_pubkey(x509);
546 if (!pkey || !pkey->ameth || !pkey->ameth->pkey_ctrl)
548 PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET,
549 PKCS7_R_ENCRYPTION_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
553 ret = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_PKCS7_ENCRYPT,
557 PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET,
558 PKCS7_R_ENCRYPTION_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
563 PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET,
564 PKCS7_R_ENCRYPTION_CTRL_FAILURE);
570 CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
581 X509 *PKCS7_cert_from_signer_info(PKCS7 *p7, PKCS7_SIGNER_INFO *si)
583 if (PKCS7_type_is_signed(p7))
584 return(X509_find_by_issuer_and_serial(p7->d.sign->cert,
585 si->issuer_and_serial->issuer,
586 si->issuer_and_serial->serial));
591 int PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher)
594 PKCS7_ENC_CONTENT *ec;
596 i=OBJ_obj2nid(p7->type);
599 case NID_pkcs7_signedAndEnveloped:
600 ec=p7->d.signed_and_enveloped->enc_data;
602 case NID_pkcs7_enveloped:
603 ec=p7->d.enveloped->enc_data;
606 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_WRONG_CONTENT_TYPE);
610 /* Check cipher OID exists and has data in it*/
611 i = EVP_CIPHER_type(cipher);
613 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
621 int PKCS7_stream(unsigned char ***boundary, PKCS7 *p7)
623 ASN1_OCTET_STRING *os = NULL;
625 switch (OBJ_obj2nid(p7->type))
631 case NID_pkcs7_signedAndEnveloped:
632 os = p7->d.signed_and_enveloped->enc_data->enc_data;
635 os=M_ASN1_OCTET_STRING_new();
636 p7->d.signed_and_enveloped->enc_data->enc_data=os;
640 case NID_pkcs7_enveloped:
641 os = p7->d.enveloped->enc_data->enc_data;
644 os=M_ASN1_OCTET_STRING_new();
645 p7->d.enveloped->enc_data->enc_data=os;
649 case NID_pkcs7_signed:
650 os=p7->d.sign->contents->d.data;
661 os->flags |= ASN1_STRING_FLAG_NDEF;
662 *boundary = &os->data;