[thirdparty/openssl.git] / crypto / pkcs7 / pk7_lib.c

/* crypto/pkcs7/pk7_lib.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#include <stdio.h>
#include "cryptlib.h"
#include <openssl/objects.h>
#include <openssl/x509.h>

long PKCS7_ctrl(PKCS7 *p7, int cmd, long larg, char *parg)
	{
	int nid;
	long ret;

	nid=OBJ_obj2nid(p7->type);

	switch (cmd)
		{
	case PKCS7_OP_SET_DETACHED_SIGNATURE:
		if (nid == NID_pkcs7_signed)
			{
			ret=p7->detached=(int)larg;
			if (ret && PKCS7_type_is_data(p7->d.sign->contents))
					{
					ASN1_OCTET_STRING *os;
					os=p7->d.sign->contents->d.data;
					ASN1_OCTET_STRING_free(os);
					p7->d.sign->contents->d.data = NULL;
					}
			}
		else
			{
			PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
			ret=0;
			}
		break;
	case PKCS7_OP_GET_DETACHED_SIGNATURE:
		if (nid == NID_pkcs7_signed)
			{
			if(!p7->d.sign  || !p7->d.sign->contents->d.ptr)
				ret = 1;
			else ret = 0;
				
			p7->detached = ret;
			}
		else
			{
			PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
			ret=0;
			}
			
		break;
	default:
		PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_UNKNOWN_OPERATION);
		ret=0;
		}
	return(ret);
	}

int PKCS7_content_new(PKCS7 *p7, int type)
	{
	PKCS7 *ret=NULL;

	if ((ret=PKCS7_new()) == NULL) goto err;
	if (!PKCS7_set_type(ret,type)) goto err;
	if (!PKCS7_set_content(p7,ret)) goto err;

	return(1);
err:
	if (ret != NULL) PKCS7_free(ret);
	return(0);
	}

int PKCS7_set_content(PKCS7 *p7, PKCS7 *p7_data)
	{
	int i;

	i=OBJ_obj2nid(p7->type);
	switch (i)
		{
	case NID_pkcs7_signed:
		if (p7->d.sign->contents != NULL)
			PKCS7_free(p7->d.sign->contents);
		p7->d.sign->contents=p7_data;
		break;
	case NID_pkcs7_digest:
	case NID_pkcs7_data:
	case NID_pkcs7_enveloped:
	case NID_pkcs7_signedAndEnveloped:
	case NID_pkcs7_encrypted:
	default:
		PKCS7err(PKCS7_F_PKCS7_SET_CONTENT,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
		goto err;
		}
	return(1);
err:
	return(0);
	}

int PKCS7_set_type(PKCS7 *p7, int type)
	{
	ASN1_OBJECT *obj;

	/*PKCS7_content_free(p7);*/
	obj=OBJ_nid2obj(type); /* will not fail */

	switch (type)
		{
	case NID_pkcs7_signed:
		p7->type=obj;
		if ((p7->d.sign=PKCS7_SIGNED_new()) == NULL)
			goto err;
		ASN1_INTEGER_set(p7->d.sign->version,1);
		break;
	case NID_pkcs7_data:
		p7->type=obj;
		if ((p7->d.data=M_ASN1_OCTET_STRING_new()) == NULL)
			goto err;
		break;
	case NID_pkcs7_signedAndEnveloped:
		p7->type=obj;
		if ((p7->d.signed_and_enveloped=PKCS7_SIGN_ENVELOPE_new())
			== NULL) goto err;
		ASN1_INTEGER_set(p7->d.signed_and_enveloped->version,1);
		p7->d.signed_and_enveloped->enc_data->content_type
						= OBJ_nid2obj(NID_pkcs7_data);
		break;
	case NID_pkcs7_enveloped:
		p7->type=obj;
		if ((p7->d.enveloped=PKCS7_ENVELOPE_new())
			== NULL) goto err;
		ASN1_INTEGER_set(p7->d.enveloped->version,0);
		p7->d.enveloped->enc_data->content_type
						= OBJ_nid2obj(NID_pkcs7_data);
		break;
	case NID_pkcs7_encrypted:
		p7->type=obj;
		if ((p7->d.encrypted=PKCS7_ENCRYPT_new())
			== NULL) goto err;
		ASN1_INTEGER_set(p7->d.encrypted->version,0);
		p7->d.encrypted->enc_data->content_type
						= OBJ_nid2obj(NID_pkcs7_data);
		break;

	case NID_pkcs7_digest:
		p7->type=obj;
		if ((p7->d.digest=PKCS7_DIGEST_new())
			== NULL) goto err;
		ASN1_INTEGER_set(p7->d.digest->version,0);
		break;
	default:
		PKCS7err(PKCS7_F_PKCS7_SET_TYPE,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
		goto err;
		}
	return(1);
err:
	return(0);
	}

int PKCS7_set0_type_other(PKCS7 *p7, int type, ASN1_TYPE *other)
	{
	p7->type = OBJ_nid2obj(type);
	p7->d.other = other;
	return 1;
	}

int PKCS7_add_signer(PKCS7 *p7, PKCS7_SIGNER_INFO *psi)
	{
	int i,j,nid;
	X509_ALGOR *alg;
	STACK_OF(PKCS7_SIGNER_INFO) *signer_sk;
	STACK_OF(X509_ALGOR) *md_sk;

	i=OBJ_obj2nid(p7->type);
	switch (i)
		{
	case NID_pkcs7_signed:
		signer_sk=	p7->d.sign->signer_info;
		md_sk=		p7->d.sign->md_algs;
		break;
	case NID_pkcs7_signedAndEnveloped:
		signer_sk=	p7->d.signed_and_enveloped->signer_info;
		md_sk=		p7->d.signed_and_enveloped->md_algs;
		break;
	default:
		PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,PKCS7_R_WRONG_CONTENT_TYPE);
		return(0);
		}

	nid=OBJ_obj2nid(psi->digest_alg->algorithm);

	/* If the digest is not currently listed, add it */
	j=0;
	for (i=0; i<sk_X509_ALGOR_num(md_sk); i++)
		{
		alg=sk_X509_ALGOR_value(md_sk,i);
		if (OBJ_obj2nid(alg->algorithm) == nid)
			{
			j=1;
			break;
			}
		}
	if (!j) /* we need to add another algorithm */
		{
		if(!(alg=X509_ALGOR_new())
			|| !(alg->parameter = ASN1_TYPE_new())) {
			PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,ERR_R_MALLOC_FAILURE);
			return(0);
		}
		alg->algorithm=OBJ_nid2obj(nid);
		alg->parameter->type = V_ASN1_NULL;
		sk_X509_ALGOR_push(md_sk,alg);
		}

	sk_PKCS7_SIGNER_INFO_push(signer_sk,psi);
	return(1);
	}

int PKCS7_add_certificate(PKCS7 *p7, X509 *x509)
	{
	int i;
	STACK_OF(X509) **sk;

	i=OBJ_obj2nid(p7->type);
	switch (i)
		{
	case NID_pkcs7_signed:
		sk= &(p7->d.sign->cert);
		break;
	case NID_pkcs7_signedAndEnveloped:
		sk= &(p7->d.signed_and_enveloped->cert);
		break;
	default:
		PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE,PKCS7_R_WRONG_CONTENT_TYPE);
		return(0);
		}

	if (*sk == NULL)
		*sk=sk_X509_new_null();
	CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
	sk_X509_push(*sk,x509);
	return(1);
	}

int PKCS7_add_crl(PKCS7 *p7, X509_CRL *crl)
	{
	int i;
	STACK_OF(X509_CRL) **sk;

	i=OBJ_obj2nid(p7->type);
	switch (i)
		{
	case NID_pkcs7_signed:
		sk= &(p7->d.sign->crl);
		break;
	case NID_pkcs7_signedAndEnveloped:
		sk= &(p7->d.signed_and_enveloped->crl);
		break;
	default:
		PKCS7err(PKCS7_F_PKCS7_ADD_CRL,PKCS7_R_WRONG_CONTENT_TYPE);
		return(0);
		}

	if (*sk == NULL)
		*sk=sk_X509_CRL_new_null();

	CRYPTO_add(&crl->references,1,CRYPTO_LOCK_X509_CRL);
	sk_X509_CRL_push(*sk,crl);
	return(1);
	}

int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey,
	     const EVP_MD *dgst)
	{
	int nid;
	char is_dsa;

	if (pkey->type == EVP_PKEY_DSA || pkey->type == EVP_PKEY_EC)
		is_dsa = 1;
	else
		is_dsa = 0;
	/* We now need to add another PKCS7_SIGNER_INFO entry */
	ASN1_INTEGER_set(p7i->version,1);
	X509_NAME_set(&p7i->issuer_and_serial->issuer,
		X509_get_issuer_name(x509));

	/* because ASN1_INTEGER_set is used to set a 'long' we will do
	 * things the ugly way. */
	M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
	p7i->issuer_and_serial->serial=
		M_ASN1_INTEGER_dup(X509_get_serialNumber(x509));

	/* lets keep the pkey around for a while */
	CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
	p7i->pkey=pkey;

	/* Set the algorithms */
	if (is_dsa) p7i->digest_alg->algorithm=OBJ_nid2obj(NID_sha1);
	else	
		p7i->digest_alg->algorithm=OBJ_nid2obj(EVP_MD_type(dgst));

	if (p7i->digest_alg->parameter != NULL)
		ASN1_TYPE_free(p7i->digest_alg->parameter);
	if ((p7i->digest_alg->parameter=ASN1_TYPE_new()) == NULL)
		goto err;
	p7i->digest_alg->parameter->type=V_ASN1_NULL;

	if (p7i->digest_enc_alg->parameter != NULL)
		ASN1_TYPE_free(p7i->digest_enc_alg->parameter);
	nid = EVP_PKEY_type(pkey->type);
	if (nid == EVP_PKEY_RSA)
		{
		p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_rsaEncryption);
		if (!(p7i->digest_enc_alg->parameter=ASN1_TYPE_new()))
			goto err;
		p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
		}
	else if (nid == EVP_PKEY_DSA)
		{
#if 1
		/* use 'dsaEncryption' OID for compatibility with other software
		 * (PKCS #7 v1.5 does specify how to handle DSA) ... */
		p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_dsa);
#else
		/* ... although the 'dsaWithSHA1' OID (as required by RFC 2630 for CMS)
		 * would make more sense. */
		p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_dsaWithSHA1);
#endif
		p7i->digest_enc_alg->parameter = NULL; /* special case for DSA: omit 'parameter'! */
		}
	else if (nid == EVP_PKEY_EC)
		{
		p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_ecdsa_with_SHA1);
		if (!(p7i->digest_enc_alg->parameter=ASN1_TYPE_new()))
			goto err;
		p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
		}
	else
		return(0);

	return(1);
err:
	return(0);
	}

PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509, EVP_PKEY *pkey,
	     const EVP_MD *dgst)
	{
	PKCS7_SIGNER_INFO *si;

	if ((si=PKCS7_SIGNER_INFO_new()) == NULL) goto err;
	if (!PKCS7_SIGNER_INFO_set(si,x509,pkey,dgst)) goto err;
	if (!PKCS7_add_signer(p7,si)) goto err;
	return(si);
err:
	return(NULL);
	}

STACK_OF(PKCS7_SIGNER_INFO) *PKCS7_get_signer_info(PKCS7 *p7)
	{
	if (PKCS7_type_is_signed(p7))
		{
		return(p7->d.sign->signer_info);
		}
	else if (PKCS7_type_is_signedAndEnveloped(p7))
		{
		return(p7->d.signed_and_enveloped->signer_info);
		}
	else
		return(NULL);
	}

PKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509)
	{
	PKCS7_RECIP_INFO *ri;

	if ((ri=PKCS7_RECIP_INFO_new()) == NULL) goto err;
	if (!PKCS7_RECIP_INFO_set(ri,x509)) goto err;
	if (!PKCS7_add_recipient_info(p7,ri)) goto err;
	return(ri);
err:
	return(NULL);
	}

int PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri)
	{
	int i;
	STACK_OF(PKCS7_RECIP_INFO) *sk;

	i=OBJ_obj2nid(p7->type);
	switch (i)
		{
	case NID_pkcs7_signedAndEnveloped:
		sk=	p7->d.signed_and_enveloped->recipientinfo;
		break;
	case NID_pkcs7_enveloped:
		sk=	p7->d.enveloped->recipientinfo;
		break;
	default:
		PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO,PKCS7_R_WRONG_CONTENT_TYPE);
		return(0);
		}

	sk_PKCS7_RECIP_INFO_push(sk,ri);
	return(1);
	}

int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509)
	{
	ASN1_INTEGER_set(p7i->version,0);
	X509_NAME_set(&p7i->issuer_and_serial->issuer,
		X509_get_issuer_name(x509));

	M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
	p7i->issuer_and_serial->serial=
		M_ASN1_INTEGER_dup(X509_get_serialNumber(x509));

	X509_ALGOR_free(p7i->key_enc_algor);
	p7i->key_enc_algor= X509_ALGOR_dup(x509->cert_info->key->algor);

	CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
	p7i->cert=x509;

	return(1);
	}

X509 *PKCS7_cert_from_signer_info(PKCS7 *p7, PKCS7_SIGNER_INFO *si)
	{
	if (PKCS7_type_is_signed(p7))
		return(X509_find_by_issuer_and_serial(p7->d.sign->cert,
			si->issuer_and_serial->issuer,
			si->issuer_and_serial->serial));
	else
		return(NULL);
	}

int PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher)
	{
	int i;
	ASN1_OBJECT *objtmp;
	PKCS7_ENC_CONTENT *ec;

	i=OBJ_obj2nid(p7->type);
	switch (i)
		{
	case NID_pkcs7_signedAndEnveloped:
		ec=p7->d.signed_and_enveloped->enc_data;
		break;
	case NID_pkcs7_enveloped:
		ec=p7->d.enveloped->enc_data;
		break;
	default:
		PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_WRONG_CONTENT_TYPE);
		return(0);
		}

	/* Check cipher OID exists and has data in it*/
	i = EVP_CIPHER_type(cipher);
	if(i == NID_undef) {
		PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
		return(0);
	}
	objtmp = OBJ_nid2obj(i);

	ec->cipher = cipher;
	return 1;
	}
Commit	Line	Data
d02b48c6	1	/* crypto/pkcs7/pk7_lib.c */
58964a49	2	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6 RE	3	* All rights reserved.
	4	*
	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.
	8	*
	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).
	15	*
	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.
	22	*
	23	* Redistribution and use in source and binary forms, with or without
	24	* modification, are permitted provided that the following conditions
	25	* are met:
	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)"
	40	*
	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
	51	* SUCH DAMAGE.
	52	*
	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.]
	57	*/
	58
	59	#include <stdio.h>
	60	#include "cryptlib.h"
ec577822 BM	61	#include <openssl/objects.h>
ec577822 BM	62	#include <openssl/x509.h>
d02b48c6	63
6b691a5c	64	long PKCS7_ctrl(PKCS7 p7, int cmd, long larg, char parg)
d02b48c6 RE	65	{
	66	int nid;
	67	long ret;
	68
	69	nid=OBJ_obj2nid(p7->type);
	70
	71	switch (cmd)
	72	{
	73	case PKCS7_OP_SET_DETACHED_SIGNATURE:
	74	if (nid == NID_pkcs7_signed)
	75	{
	76	ret=p7->detached=(int)larg;
48921e00	77	if (ret && PKCS7_type_is_data(p7->d.sign->contents))
f8049301 DSH	78	{
	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;
	83	}
d02b48c6 RE	84	}
	85	else
	86	{
	87	PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
	88	ret=0;
	89	}
	90	break;
	91	case PKCS7_OP_GET_DETACHED_SIGNATURE:
	92	if (nid == NID_pkcs7_signed)
	93	{
9d6b1ce6 DSH	94	if(!p7->d.sign \|\| !p7->d.sign->contents->d.ptr)
	95	ret = 1;
	96	else ret = 0;
	97
	98	p7->detached = ret;
d02b48c6 RE	99	}
	100	else
	101	{
	102	PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
	103	ret=0;
	104	}
	105
	106	break;
	107	default:
dfeab068 RE	108	PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_UNKNOWN_OPERATION);
dfeab068 RE	109	ret=0;
d02b48c6 RE	110	}
	111	return(ret);
	112	}
	113
6b691a5c	114	int PKCS7_content_new(PKCS7 *p7, int type)
d02b48c6 RE	115	{
	116	PKCS7 *ret=NULL;
	117
	118	if ((ret=PKCS7_new()) == NULL) goto err;
	119	if (!PKCS7_set_type(ret,type)) goto err;
	120	if (!PKCS7_set_content(p7,ret)) goto err;
	121
	122	return(1);
	123	err:
	124	if (ret != NULL) PKCS7_free(ret);
	125	return(0);
	126	}
	127
6b691a5c	128	int PKCS7_set_content(PKCS7 p7, PKCS7 p7_data)
d02b48c6 RE	129	{
	130	int i;
	131
	132	i=OBJ_obj2nid(p7->type);
	133	switch (i)
	134	{
	135	case NID_pkcs7_signed:
	136	if (p7->d.sign->contents != NULL)
d8223efd	137	PKCS7_free(p7->d.sign->contents);
d02b48c6 RE	138	p7->d.sign->contents=p7_data;
	139	break;
	140	case NID_pkcs7_digest:
	141	case NID_pkcs7_data:
	142	case NID_pkcs7_enveloped:
	143	case NID_pkcs7_signedAndEnveloped:
	144	case NID_pkcs7_encrypted:
	145	default:
	146	PKCS7err(PKCS7_F_PKCS7_SET_CONTENT,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
	147	goto err;
	148	}
	149	return(1);
	150	err:
	151	return(0);
	152	}
	153
6b691a5c	154	int PKCS7_set_type(PKCS7 *p7, int type)
d02b48c6 RE	155	{
	156	ASN1_OBJECT *obj;
	157
9d6b1ce6	158	/PKCS7_content_free(p7);/
d02b48c6 RE	159	obj=OBJ_nid2obj(type); /* will not fail */
	160
	161	switch (type)
	162	{
	163	case NID_pkcs7_signed:
	164	p7->type=obj;
	165	if ((p7->d.sign=PKCS7_SIGNED_new()) == NULL)
	166	goto err;
	167	ASN1_INTEGER_set(p7->d.sign->version,1);
	168	break;
	169	case NID_pkcs7_data:
	170	p7->type=obj;
08e9c1af	171	if ((p7->d.data=M_ASN1_OCTET_STRING_new()) == NULL)
d02b48c6 RE	172	goto err;
d02b48c6 RE	173	break;
58964a49 RE	174	case NID_pkcs7_signedAndEnveloped:
	175	p7->type=obj;
	176	if ((p7->d.signed_and_enveloped=PKCS7_SIGN_ENVELOPE_new())
dfeab068 RE	177	== NULL) goto err;
dfeab068 RE	178	ASN1_INTEGER_set(p7->d.signed_and_enveloped->version,1);
a43cf9fa DSH	179	p7->d.signed_and_enveloped->enc_data->content_type
a43cf9fa DSH	180	= OBJ_nid2obj(NID_pkcs7_data);
58964a49	181	break;
d02b48c6	182	case NID_pkcs7_enveloped:
dfeab068 RE	183	p7->type=obj;
	184	if ((p7->d.enveloped=PKCS7_ENVELOPE_new())
	185	== NULL) goto err;
	186	ASN1_INTEGER_set(p7->d.enveloped->version,0);
a43cf9fa DSH	187	p7->d.enveloped->enc_data->content_type
a43cf9fa DSH	188	= OBJ_nid2obj(NID_pkcs7_data);
dfeab068	189	break;
d02b48c6	190	case NID_pkcs7_encrypted:
c6c34506 DSH	191	p7->type=obj;
	192	if ((p7->d.encrypted=PKCS7_ENCRYPT_new())
	193	== NULL) goto err;
	194	ASN1_INTEGER_set(p7->d.encrypted->version,0);
a43cf9fa DSH	195	p7->d.encrypted->enc_data->content_type
a43cf9fa DSH	196	= OBJ_nid2obj(NID_pkcs7_data);
c6c34506 DSH	197	break;
	198
	199	case NID_pkcs7_digest:
0602abf5 DSH	200	p7->type=obj;
	201	if ((p7->d.digest=PKCS7_DIGEST_new())
	202	== NULL) goto err;
	203	ASN1_INTEGER_set(p7->d.digest->version,0);
	204	break;
d02b48c6 RE	205	default:
	206	PKCS7err(PKCS7_F_PKCS7_SET_TYPE,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
	207	goto err;
	208	}
	209	return(1);
	210	err:
	211	return(0);
	212	}
	213
8d9086df DSH	214	int PKCS7_set0_type_other(PKCS7 p7, int type, ASN1_TYPE other)
	215	{
	216	p7->type = OBJ_nid2obj(type);
	217	p7->d.other = other;
	218	return 1;
	219	}
	220
6b691a5c	221	int PKCS7_add_signer(PKCS7 p7, PKCS7_SIGNER_INFO psi)
d02b48c6 RE	222	{
	223	int i,j,nid;
	224	X509_ALGOR *alg;
b05b50e6	225	STACK_OF(PKCS7_SIGNER_INFO) *signer_sk;
426edadf	226	STACK_OF(X509_ALGOR) *md_sk;
d02b48c6 RE	227
d02b48c6 RE	228	i=OBJ_obj2nid(p7->type);
58964a49	229	switch (i)
d02b48c6	230	{
58964a49 RE	231	case NID_pkcs7_signed:
	232	signer_sk= p7->d.sign->signer_info;
	233	md_sk= p7->d.sign->md_algs;
	234	break;
	235	case NID_pkcs7_signedAndEnveloped:
	236	signer_sk= p7->d.signed_and_enveloped->signer_info;
	237	md_sk= p7->d.signed_and_enveloped->md_algs;
	238	break;
	239	default:
d02b48c6 RE	240	PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,PKCS7_R_WRONG_CONTENT_TYPE);
	241	return(0);
	242	}
	243
d02b48c6 RE	244	nid=OBJ_obj2nid(psi->digest_alg->algorithm);
	245
	246	/* If the digest is not currently listed, add it */
	247	j=0;
426edadf	248	for (i=0; i<sk_X509_ALGOR_num(md_sk); i++)
d02b48c6	249	{
426edadf	250	alg=sk_X509_ALGOR_value(md_sk,i);
d02b48c6 RE	251	if (OBJ_obj2nid(alg->algorithm) == nid)
	252	{
	253	j=1;
	254	break;
	255	}
	256	}
	257	if (!j) /* we need to add another algorithm */
	258	{
b216664f DSH	259	if(!(alg=X509_ALGOR_new())
	260	\|\| !(alg->parameter = ASN1_TYPE_new())) {
	261	PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,ERR_R_MALLOC_FAILURE);
	262	return(0);
	263	}
d02b48c6	264	alg->algorithm=OBJ_nid2obj(nid);
b216664f	265	alg->parameter->type = V_ASN1_NULL;
426edadf	266	sk_X509_ALGOR_push(md_sk,alg);
d02b48c6 RE	267	}
d02b48c6 RE	268
b05b50e6	269	sk_PKCS7_SIGNER_INFO_push(signer_sk,psi);
d02b48c6 RE	270	return(1);
	271	}
	272
6b691a5c	273	int PKCS7_add_certificate(PKCS7 p7, X509 x509)
d02b48c6 RE	274	{
d02b48c6 RE	275	int i;
f73e07cf	276	STACK_OF(X509) **sk;
d02b48c6 RE	277
d02b48c6 RE	278	i=OBJ_obj2nid(p7->type);
58964a49	279	switch (i)
d02b48c6	280	{
58964a49 RE	281	case NID_pkcs7_signed:
	282	sk= &(p7->d.sign->cert);
	283	break;
	284	case NID_pkcs7_signedAndEnveloped:
	285	sk= &(p7->d.signed_and_enveloped->cert);
	286	break;
	287	default:
	288	PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE,PKCS7_R_WRONG_CONTENT_TYPE);
d02b48c6 RE	289	return(0);
	290	}
	291
58964a49	292	if (*sk == NULL)
f73e07cf	293	*sk=sk_X509_new_null();
d02b48c6	294	CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
f73e07cf	295	sk_X509_push(*sk,x509);
d02b48c6 RE	296	return(1);
	297	}
	298
6b691a5c	299	int PKCS7_add_crl(PKCS7 p7, X509_CRL crl)
d02b48c6 RE	300	{
d02b48c6 RE	301	int i;
6d114240	302	STACK_OF(X509_CRL) **sk;
58964a49	303
d02b48c6	304	i=OBJ_obj2nid(p7->type);
58964a49	305	switch (i)
d02b48c6	306	{
58964a49 RE	307	case NID_pkcs7_signed:
	308	sk= &(p7->d.sign->crl);
	309	break;
	310	case NID_pkcs7_signedAndEnveloped:
	311	sk= &(p7->d.signed_and_enveloped->crl);
	312	break;
	313	default:
	314	PKCS7err(PKCS7_F_PKCS7_ADD_CRL,PKCS7_R_WRONG_CONTENT_TYPE);
d02b48c6 RE	315	return(0);
	316	}
	317
58964a49	318	if (*sk == NULL)
6d114240	319	*sk=sk_X509_CRL_new_null();
d02b48c6 RE	320
d02b48c6 RE	321	CRYPTO_add(&crl->references,1,CRYPTO_LOCK_X509_CRL);
6d114240	322	sk_X509_CRL_push(*sk,crl);
d02b48c6 RE	323	return(1);
	324	}
	325
6b691a5c	326	int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO p7i, X509 x509, EVP_PKEY *pkey,
13588350	327	const EVP_MD *dgst)
d02b48c6	328	{
279fe3b1	329	int nid;
55f30198	330	char is_dsa;
279fe3b1	331
5488bb61	332	if (pkey->type == EVP_PKEY_DSA \|\| pkey->type == EVP_PKEY_EC)
279fe3b1 BM	333	is_dsa = 1;
	334	else
	335	is_dsa = 0;
d02b48c6 RE	336	/* We now need to add another PKCS7_SIGNER_INFO entry */
	337	ASN1_INTEGER_set(p7i->version,1);
	338	X509_NAME_set(&p7i->issuer_and_serial->issuer,
	339	X509_get_issuer_name(x509));
	340
	341	/* because ASN1_INTEGER_set is used to set a 'long' we will do
	342	* things the ugly way. */
08e9c1af	343	M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
d02b48c6	344	p7i->issuer_and_serial->serial=
08e9c1af	345	M_ASN1_INTEGER_dup(X509_get_serialNumber(x509));
d02b48c6 RE	346
	347	/* lets keep the pkey around for a while */
	348	CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
	349	p7i->pkey=pkey;
	350
	351	/* Set the algorithms */
55f30198	352	if (is_dsa) p7i->digest_alg->algorithm=OBJ_nid2obj(NID_sha1);
dfeab068 RE	353	else
dfeab068 RE	354	p7i->digest_alg->algorithm=OBJ_nid2obj(EVP_MD_type(dgst));
d02b48c6	355
10243d97 DSH	356	if (p7i->digest_alg->parameter != NULL)
	357	ASN1_TYPE_free(p7i->digest_alg->parameter);
	358	if ((p7i->digest_alg->parameter=ASN1_TYPE_new()) == NULL)
	359	goto err;
	360	p7i->digest_alg->parameter->type=V_ASN1_NULL;
	361
d02b48c6 RE	362	if (p7i->digest_enc_alg->parameter != NULL)
d02b48c6 RE	363	ASN1_TYPE_free(p7i->digest_enc_alg->parameter);
279fe3b1 BM	364	nid = EVP_PKEY_type(pkey->type);
	365	if (nid == EVP_PKEY_RSA)
	366	{
	367	p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_rsaEncryption);
55f30198 DSH	368	if (!(p7i->digest_enc_alg->parameter=ASN1_TYPE_new()))
	369	goto err;
	370	p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
279fe3b1 BM	371	}
	372	else if (nid == EVP_PKEY_DSA)
	373	{
	374	#if 1
	375	/* use 'dsaEncryption' OID for compatibility with other software
	376	* (PKCS #7 v1.5 does specify how to handle DSA) ... */
	377	p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_dsa);
	378	#else
	379	/* ... although the 'dsaWithSHA1' OID (as required by RFC 2630 for CMS)
	380	* would make more sense. */
	381	p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_dsaWithSHA1);
	382	#endif
	383	p7i->digest_enc_alg->parameter = NULL; /* special case for DSA: omit 'parameter'! */
	384	}
5488bb61	385	else if (nid == EVP_PKEY_EC)
279fe3b1 BM	386	{
	387	p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_ecdsa_with_SHA1);
	388	if (!(p7i->digest_enc_alg->parameter=ASN1_TYPE_new()))
	389	goto err;
	390	p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
	391	}
	392	else
	393	return(0);
d02b48c6	394
d02b48c6 RE	395	return(1);
	396	err:
	397	return(0);
	398	}
	399
6b691a5c	400	PKCS7_SIGNER_INFO PKCS7_add_signature(PKCS7 p7, X509 x509, EVP_PKEY pkey,
13588350	401	const EVP_MD *dgst)
d02b48c6 RE	402	{
	403	PKCS7_SIGNER_INFO *si;
	404
	405	if ((si=PKCS7_SIGNER_INFO_new()) == NULL) goto err;
	406	if (!PKCS7_SIGNER_INFO_set(si,x509,pkey,dgst)) goto err;
	407	if (!PKCS7_add_signer(p7,si)) goto err;
	408	return(si);
	409	err:
	410	return(NULL);
	411	}
	412
b05b50e6	413	STACK_OF(PKCS7_SIGNER_INFO) PKCS7_get_signer_info(PKCS7 p7)
d02b48c6 RE	414	{
	415	if (PKCS7_type_is_signed(p7))
	416	{
	417	return(p7->d.sign->signer_info);
	418	}
dfeab068 RE	419	else if (PKCS7_type_is_signedAndEnveloped(p7))
	420	{
	421	return(p7->d.signed_and_enveloped->signer_info);
	422	}
d02b48c6 RE	423	else
	424	return(NULL);
	425	}
	426
6b691a5c	427	PKCS7_RECIP_INFO PKCS7_add_recipient(PKCS7 p7, X509 *x509)
58964a49 RE	428	{
	429	PKCS7_RECIP_INFO *ri;
	430
	431	if ((ri=PKCS7_RECIP_INFO_new()) == NULL) goto err;
	432	if (!PKCS7_RECIP_INFO_set(ri,x509)) goto err;
	433	if (!PKCS7_add_recipient_info(p7,ri)) goto err;
	434	return(ri);
	435	err:
	436	return(NULL);
	437	}
	438
6b691a5c	439	int PKCS7_add_recipient_info(PKCS7 p7, PKCS7_RECIP_INFO ri)
58964a49 RE	440	{
58964a49 RE	441	int i;
8f0edcd1	442	STACK_OF(PKCS7_RECIP_INFO) *sk;
58964a49 RE	443
	444	i=OBJ_obj2nid(p7->type);
	445	switch (i)
	446	{
	447	case NID_pkcs7_signedAndEnveloped:
	448	sk= p7->d.signed_and_enveloped->recipientinfo;
	449	break;
dfeab068 RE	450	case NID_pkcs7_enveloped:
	451	sk= p7->d.enveloped->recipientinfo;
	452	break;
58964a49 RE	453	default:
	454	PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO,PKCS7_R_WRONG_CONTENT_TYPE);
	455	return(0);
	456	}
	457
8f0edcd1	458	sk_PKCS7_RECIP_INFO_push(sk,ri);
58964a49 RE	459	return(1);
	460	}
	461
6b691a5c	462	int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO p7i, X509 x509)
58964a49 RE	463	{
	464	ASN1_INTEGER_set(p7i->version,0);
	465	X509_NAME_set(&p7i->issuer_and_serial->issuer,
	466	X509_get_issuer_name(x509));
	467
08e9c1af	468	M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
58964a49	469	p7i->issuer_and_serial->serial=
08e9c1af	470	M_ASN1_INTEGER_dup(X509_get_serialNumber(x509));
58964a49	471
dfeab068	472	X509_ALGOR_free(p7i->key_enc_algor);
78d3b819	473	p7i->key_enc_algor= X509_ALGOR_dup(x509->cert_info->key->algor);
dfeab068	474
58964a49 RE	475	CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
	476	p7i->cert=x509;
	477
	478	return(1);
	479	}
	480
6b691a5c	481	X509 PKCS7_cert_from_signer_info(PKCS7 p7, PKCS7_SIGNER_INFO *si)
d02b48c6 RE	482	{
	483	if (PKCS7_type_is_signed(p7))
	484	return(X509_find_by_issuer_and_serial(p7->d.sign->cert,
	485	si->issuer_and_serial->issuer,
	486	si->issuer_and_serial->serial));
	487	else
	488	return(NULL);
	489	}
	490
84fa704c	491	int PKCS7_set_cipher(PKCS7 p7, const EVP_CIPHER cipher)
58964a49 RE	492	{
58964a49 RE	493	int i;
f45f40ff	494	ASN1_OBJECT *objtmp;
58964a49 RE	495	PKCS7_ENC_CONTENT *ec;
	496
	497	i=OBJ_obj2nid(p7->type);
	498	switch (i)
	499	{
	500	case NID_pkcs7_signedAndEnveloped:
	501	ec=p7->d.signed_and_enveloped->enc_data;
	502	break;
dfeab068 RE	503	case NID_pkcs7_enveloped:
	504	ec=p7->d.enveloped->enc_data;
	505	break;
58964a49 RE	506	default:
	507	PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_WRONG_CONTENT_TYPE);
	508	return(0);
	509	}
	510
f45f40ff	511	/* Check cipher OID exists and has data in it*/
4b426580 DSH	512	i = EVP_CIPHER_type(cipher);
4b426580 DSH	513	if(i == NID_undef) {
f45f40ff DSH	514	PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
	515	return(0);
	516	}
4b426580	517	objtmp = OBJ_nid2obj(i);
84fa704c DSH	518
	519	ec->cipher = cipher;
	520	return 1;
58964a49 RE	521	}
58964a49 RE	522