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())) {
276 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,ERR_R_MALLOC_FAILURE);
279 alg->algorithm=OBJ_nid2obj(nid);
280 alg->parameter->type = V_ASN1_NULL;
281 sk_X509_ALGOR_push(md_sk,alg);
284 sk_PKCS7_SIGNER_INFO_push(signer_sk,psi);
288 int PKCS7_add_certificate(PKCS7 *p7, X509 *x509)
293 i=OBJ_obj2nid(p7->type);
296 case NID_pkcs7_signed:
297 sk= &(p7->d.sign->cert);
299 case NID_pkcs7_signedAndEnveloped:
300 sk= &(p7->d.signed_and_enveloped->cert);
303 PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE,PKCS7_R_WRONG_CONTENT_TYPE);
308 *sk=sk_X509_new_null();
309 CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
310 sk_X509_push(*sk,x509);
314 int PKCS7_add_crl(PKCS7 *p7, X509_CRL *crl)
317 STACK_OF(X509_CRL) **sk;
319 i=OBJ_obj2nid(p7->type);
322 case NID_pkcs7_signed:
323 sk= &(p7->d.sign->crl);
325 case NID_pkcs7_signedAndEnveloped:
326 sk= &(p7->d.signed_and_enveloped->crl);
329 PKCS7err(PKCS7_F_PKCS7_ADD_CRL,PKCS7_R_WRONG_CONTENT_TYPE);
334 *sk=sk_X509_CRL_new_null();
336 CRYPTO_add(&crl->references,1,CRYPTO_LOCK_X509_CRL);
337 sk_X509_CRL_push(*sk,crl);
341 int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey,
346 /* We now need to add another PKCS7_SIGNER_INFO entry */
347 if (!ASN1_INTEGER_set(p7i->version,1))
349 if (!X509_NAME_set(&p7i->issuer_and_serial->issuer,
350 X509_get_issuer_name(x509)))
353 /* because ASN1_INTEGER_set is used to set a 'long' we will do
354 * things the ugly way. */
355 M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
356 if (!(p7i->issuer_and_serial->serial=
357 M_ASN1_INTEGER_dup(X509_get_serialNumber(x509))))
360 /* lets keep the pkey around for a while */
361 CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
364 /* Set the algorithms */
366 X509_ALGOR_set0(p7i->digest_alg, OBJ_nid2obj(EVP_MD_type(dgst)),
369 if (pkey->ameth && pkey->ameth->pkey_ctrl)
371 ret = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_PKCS7_SIGN,
377 PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SET,
378 PKCS7_R_SIGNING_CTRL_FAILURE);
382 PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SET,
383 PKCS7_R_SIGNING_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
388 PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509, EVP_PKEY *pkey,
391 PKCS7_SIGNER_INFO *si = NULL;
396 if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) <= 0)
398 dgst = EVP_get_digestbynid(def_nid);
401 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNATURE,
402 PKCS7_R_NO_DEFAULT_DIGEST);
407 if ((si=PKCS7_SIGNER_INFO_new()) == NULL) goto err;
408 if (!PKCS7_SIGNER_INFO_set(si,x509,pkey,dgst)) goto err;
409 if (!PKCS7_add_signer(p7,si)) goto err;
413 PKCS7_SIGNER_INFO_free(si);
417 int PKCS7_set_digest(PKCS7 *p7, const EVP_MD *md)
419 if (PKCS7_type_is_digest(p7))
421 if(!(p7->d.digest->md->parameter = ASN1_TYPE_new()))
423 PKCS7err(PKCS7_F_PKCS7_SET_DIGEST,ERR_R_MALLOC_FAILURE);
426 p7->d.digest->md->parameter->type = V_ASN1_NULL;
427 p7->d.digest->md->algorithm = OBJ_nid2obj(EVP_MD_nid(md));
431 PKCS7err(PKCS7_F_PKCS7_SET_DIGEST,PKCS7_R_WRONG_CONTENT_TYPE);
435 STACK_OF(PKCS7_SIGNER_INFO) *PKCS7_get_signer_info(PKCS7 *p7)
437 if (PKCS7_type_is_signed(p7))
439 return(p7->d.sign->signer_info);
441 else if (PKCS7_type_is_signedAndEnveloped(p7))
443 return(p7->d.signed_and_enveloped->signer_info);
449 void PKCS7_SIGNER_INFO_get0_algs(PKCS7_SIGNER_INFO *si, EVP_PKEY **pk,
450 X509_ALGOR **pdig, X509_ALGOR **psig)
455 *pdig = si->digest_alg;
457 *psig = si->digest_enc_alg;
460 void PKCS7_RECIP_INFO_get0_alg(PKCS7_RECIP_INFO *ri, X509_ALGOR **penc)
463 *penc = ri->key_enc_algor;
466 PKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509)
468 PKCS7_RECIP_INFO *ri;
470 if ((ri=PKCS7_RECIP_INFO_new()) == NULL) goto err;
471 if (!PKCS7_RECIP_INFO_set(ri,x509)) goto err;
472 if (!PKCS7_add_recipient_info(p7,ri)) goto err;
476 PKCS7_RECIP_INFO_free(ri);
480 int PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri)
483 STACK_OF(PKCS7_RECIP_INFO) *sk;
485 i=OBJ_obj2nid(p7->type);
488 case NID_pkcs7_signedAndEnveloped:
489 sk= p7->d.signed_and_enveloped->recipientinfo;
491 case NID_pkcs7_enveloped:
492 sk= p7->d.enveloped->recipientinfo;
495 PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO,PKCS7_R_WRONG_CONTENT_TYPE);
499 sk_PKCS7_RECIP_INFO_push(sk,ri);
503 int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509)
506 EVP_PKEY *pkey = NULL;
507 if (!ASN1_INTEGER_set(p7i->version,0))
509 if (!X509_NAME_set(&p7i->issuer_and_serial->issuer,
510 X509_get_issuer_name(x509)))
513 M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
514 if (!(p7i->issuer_and_serial->serial=
515 M_ASN1_INTEGER_dup(X509_get_serialNumber(x509))))
518 pkey = X509_get_pubkey(x509);
520 if (!pkey || !pkey->ameth || !pkey->ameth->pkey_ctrl)
522 PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET,
523 PKCS7_R_ENCRYPTION_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
527 ret = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_PKCS7_ENCRYPT,
531 PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET,
532 PKCS7_R_ENCRYPTION_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
537 PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET,
538 PKCS7_R_ENCRYPTION_CTRL_FAILURE);
544 CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
555 X509 *PKCS7_cert_from_signer_info(PKCS7 *p7, PKCS7_SIGNER_INFO *si)
557 if (PKCS7_type_is_signed(p7))
558 return(X509_find_by_issuer_and_serial(p7->d.sign->cert,
559 si->issuer_and_serial->issuer,
560 si->issuer_and_serial->serial));
565 int PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher)
569 PKCS7_ENC_CONTENT *ec;
571 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);
588 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
591 objtmp = OBJ_nid2obj(i);