openssl1.0/crypto/pkcs7/pk7_attr.c

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/* pk7_attr.c */
/*
* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
* 2001.
*/
/* ====================================================================
* Copyright (c) 2001-2004 The OpenSSL Project. All rights reserved.
*
* 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 above 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 acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED 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 OpenSSL PROJECT OR
* ITS 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.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <openssl/bio.h>
#include <openssl/asn1.h>
#include <openssl/asn1t.h>
#include <openssl/pem.h>
#include <openssl/pkcs7.h>
#include <openssl/x509.h>
#include <openssl/err.h>
int PKCS7_add_attrib_smimecap(PKCS7_SIGNER_INFO *si,
STACK_OF(X509_ALGOR) *cap)
{
ASN1_STRING *seq;
if (!(seq = ASN1_STRING_new())) {
PKCS7err(PKCS7_F_PKCS7_ADD_ATTRIB_SMIMECAP, ERR_R_MALLOC_FAILURE);
return 0;
}
seq->length = ASN1_item_i2d((ASN1_VALUE *)cap, &seq->data,
ASN1_ITEM_rptr(X509_ALGORS));
return PKCS7_add_signed_attribute(si, NID_SMIMECapabilities,
V_ASN1_SEQUENCE, seq);
}
STACK_OF(X509_ALGOR) *PKCS7_get_smimecap(PKCS7_SIGNER_INFO *si)
{
ASN1_TYPE *cap;
const unsigned char *p;
cap = PKCS7_get_signed_attribute(si, NID_SMIMECapabilities);
if (!cap || (cap->type != V_ASN1_SEQUENCE))
return NULL;
p = cap->value.sequence->data;
return (STACK_OF(X509_ALGOR) *)
ASN1_item_d2i(NULL, &p, cap->value.sequence->length,
ASN1_ITEM_rptr(X509_ALGORS));
}
/* Basic smime-capabilities OID and optional integer arg */
int PKCS7_simple_smimecap(STACK_OF(X509_ALGOR) *sk, int nid, int arg)
{
X509_ALGOR *alg;
if (!(alg = X509_ALGOR_new())) {
PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP, ERR_R_MALLOC_FAILURE);
return 0;
}
ASN1_OBJECT_free(alg->algorithm);
alg->algorithm = OBJ_nid2obj(nid);
if (arg > 0) {
ASN1_INTEGER *nbit;
if (!(alg->parameter = ASN1_TYPE_new())) {
PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP, ERR_R_MALLOC_FAILURE);
return 0;
}
if (!(nbit = ASN1_INTEGER_new())) {
PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP, ERR_R_MALLOC_FAILURE);
return 0;
}
if (!ASN1_INTEGER_set(nbit, arg)) {
PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP, ERR_R_MALLOC_FAILURE);
return 0;
}
alg->parameter->value.integer = nbit;
alg->parameter->type = V_ASN1_INTEGER;
}
sk_X509_ALGOR_push(sk, alg);
return 1;
}
int PKCS7_add_attrib_content_type(PKCS7_SIGNER_INFO *si, ASN1_OBJECT *coid)
{
if (PKCS7_get_signed_attribute(si, NID_pkcs9_contentType))
return 0;
if (!coid)
coid = OBJ_nid2obj(NID_pkcs7_data);
return PKCS7_add_signed_attribute(si, NID_pkcs9_contentType,
V_ASN1_OBJECT, coid);
}
int PKCS7_add0_attrib_signing_time(PKCS7_SIGNER_INFO *si, ASN1_TIME *t)
{
if (!t && !(t = X509_gmtime_adj(NULL, 0))) {
PKCS7err(PKCS7_F_PKCS7_ADD0_ATTRIB_SIGNING_TIME,
ERR_R_MALLOC_FAILURE);
return 0;
}
return PKCS7_add_signed_attribute(si, NID_pkcs9_signingTime,
V_ASN1_UTCTIME, t);
}
int PKCS7_add1_attrib_digest(PKCS7_SIGNER_INFO *si,
const unsigned char *md, int mdlen)
{
ASN1_OCTET_STRING *os;
os = ASN1_OCTET_STRING_new();
if (!os)
return 0;
if (!ASN1_STRING_set(os, md, mdlen)
|| !PKCS7_add_signed_attribute(si, NID_pkcs9_messageDigest,
V_ASN1_OCTET_STRING, os)) {
ASN1_OCTET_STRING_free(os);
return 0;
}
return 1;
}