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/* $OpenBSD: pk7_attr.c,v 1.12 2017/01/29 17:49:23 beck Exp $ */ |
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/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL |
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* project 2001. |
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*/ |
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/* ==================================================================== |
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* Copyright (c) 2001-2004 The OpenSSL Project. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. All advertising materials mentioning features or use of this |
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* software must display the following acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
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* |
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
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* endorse or promote products derived from this software without |
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* prior written permission. For written permission, please contact |
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* licensing@OpenSSL.org. |
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* |
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* 5. Products derived from this software may not be called "OpenSSL" |
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* nor may "OpenSSL" appear in their names without prior written |
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* permission of the OpenSSL Project. |
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* |
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* 6. Redistributions of any form whatsoever must retain the following |
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* acknowledgment: |
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* "This product includes software developed by the OpenSSL Project |
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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* OF THE POSSIBILITY OF SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This product includes cryptographic software written by Eric Young |
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* (eay@cryptsoft.com). This product includes software written by Tim |
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* Hudson (tjh@cryptsoft.com). |
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* |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <openssl/bio.h> |
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#include <openssl/asn1.h> |
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#include <openssl/asn1t.h> |
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#include <openssl/pem.h> |
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#include <openssl/pkcs7.h> |
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#include <openssl/x509.h> |
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#include <openssl/err.h> |
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int |
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PKCS7_add_attrib_smimecap(PKCS7_SIGNER_INFO *si, STACK_OF(X509_ALGOR) *cap) |
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{ |
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ASN1_STRING *seq; |
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✗✓ |
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if (!(seq = ASN1_STRING_new())) { |
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PKCS7error(ERR_R_MALLOC_FAILURE); |
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return 0; |
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} |
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seq->length = ASN1_item_i2d((ASN1_VALUE *)cap, &seq->data, |
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&X509_ALGORS_it); |
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return PKCS7_add_signed_attribute(si, NID_SMIMECapabilities, |
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V_ASN1_SEQUENCE, seq); |
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} |
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STACK_OF(X509_ALGOR) * |
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PKCS7_get_smimecap(PKCS7_SIGNER_INFO *si) |
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{ |
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ASN1_TYPE *cap; |
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const unsigned char *p; |
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cap = PKCS7_get_signed_attribute(si, NID_SMIMECapabilities); |
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if (!cap || (cap->type != V_ASN1_SEQUENCE)) |
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return NULL; |
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p = cap->value.sequence->data; |
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return (STACK_OF(X509_ALGOR) *) |
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ASN1_item_d2i(NULL, &p, cap->value.sequence->length, |
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&X509_ALGORS_it); |
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} |
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/* Basic smime-capabilities OID and optional integer arg */ |
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int |
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PKCS7_simple_smimecap(STACK_OF(X509_ALGOR) *sk, int nid, int arg) |
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{ |
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X509_ALGOR *alg; |
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✗✓ |
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if (!(alg = X509_ALGOR_new())) { |
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PKCS7error(ERR_R_MALLOC_FAILURE); |
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return 0; |
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} |
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ASN1_OBJECT_free(alg->algorithm); |
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alg->algorithm = OBJ_nid2obj(nid); |
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✓✓ |
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if (arg > 0) { |
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ASN1_INTEGER *nbit; |
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✗✓ |
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if (!(alg->parameter = ASN1_TYPE_new())) |
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goto err; |
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✗✓ |
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if (!(nbit = ASN1_INTEGER_new())) |
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goto err; |
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✗✓ |
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if (!ASN1_INTEGER_set(nbit, arg)) { |
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ASN1_INTEGER_free(nbit); |
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goto err; |
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} |
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alg->parameter->value.integer = nbit; |
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alg->parameter->type = V_ASN1_INTEGER; |
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✓✗✓ |
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} |
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✓✗ |
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if (sk_X509_ALGOR_push(sk, alg) == 0) |
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goto err; |
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return 1; |
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err: |
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PKCS7error(ERR_R_MALLOC_FAILURE); |
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X509_ALGOR_free(alg); |
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return 0; |
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} |
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int |
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PKCS7_add_attrib_content_type(PKCS7_SIGNER_INFO *si, ASN1_OBJECT *coid) |
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{ |
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✗✓ |
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if (PKCS7_get_signed_attribute(si, NID_pkcs9_contentType)) |
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return 0; |
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✓✗ |
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if (!coid) |
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coid = OBJ_nid2obj(NID_pkcs7_data); |
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return PKCS7_add_signed_attribute(si, NID_pkcs9_contentType, |
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V_ASN1_OBJECT, coid); |
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} |
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int |
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PKCS7_add0_attrib_signing_time(PKCS7_SIGNER_INFO *si, ASN1_TIME *t) |
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{ |
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✓✗✗✓
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if (!t && !(t = X509_gmtime_adj(NULL, 0))) { |
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PKCS7error(ERR_R_MALLOC_FAILURE); |
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return 0; |
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} |
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return PKCS7_add_signed_attribute(si, NID_pkcs9_signingTime, |
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V_ASN1_UTCTIME, t); |
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} |
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int |
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PKCS7_add1_attrib_digest(PKCS7_SIGNER_INFO *si, const unsigned char *md, |
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int mdlen) |
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{ |
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ASN1_OCTET_STRING *os; |
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os = ASN1_OCTET_STRING_new(); |
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✗✓ |
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if (!os) |
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return 0; |
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✓✗✗✓
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if (!ASN1_STRING_set(os, md, mdlen) || |
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!PKCS7_add_signed_attribute(si, NID_pkcs9_messageDigest, |
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V_ASN1_OCTET_STRING, os)) { |
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ASN1_OCTET_STRING_free(os); |
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return 0; |
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} |
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return 1; |
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} |