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121 lines
3.7 KiB
C
121 lines
3.7 KiB
C
/*
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* Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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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 PKCS7_add_attrib_smimecap(PKCS7_SIGNER_INFO *si,
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STACK_OF(X509_ALGOR) *cap)
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{
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ASN1_STRING *seq;
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if ((seq = ASN1_STRING_new()) == NULL) {
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PKCS7err(PKCS7_F_PKCS7_ADD_ATTRIB_SMIMECAP, 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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ASN1_ITEM_rptr(X509_ALGORS));
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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) *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 == NULL || (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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ASN1_ITEM_rptr(X509_ALGORS));
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}
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/* Basic smime-capabilities OID and optional integer arg */
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int PKCS7_simple_smimecap(STACK_OF(X509_ALGOR) *sk, int nid, int arg)
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{
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ASN1_INTEGER *nbit = NULL;
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X509_ALGOR *alg;
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if ((alg = X509_ALGOR_new()) == NULL) {
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PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP, 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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if (arg > 0) {
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if ((alg->parameter = ASN1_TYPE_new()) == NULL) {
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goto err;
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}
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if ((nbit = ASN1_INTEGER_new()) == NULL) {
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goto err;
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}
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if (!ASN1_INTEGER_set(nbit, arg)) {
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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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nbit = NULL;
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}
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if (!sk_X509_ALGOR_push(sk, alg)) {
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goto err;
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}
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return 1;
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err:
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PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP, ERR_R_MALLOC_FAILURE);
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ASN1_INTEGER_free(nbit);
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X509_ALGOR_free(alg);
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return 0;
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}
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int PKCS7_add_attrib_content_type(PKCS7_SIGNER_INFO *si, ASN1_OBJECT *coid)
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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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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 PKCS7_add0_attrib_signing_time(PKCS7_SIGNER_INFO *si, ASN1_TIME *t)
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{
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if (t == NULL && (t = X509_gmtime_adj(NULL, 0)) == NULL) {
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PKCS7err(PKCS7_F_PKCS7_ADD0_ATTRIB_SIGNING_TIME,
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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 PKCS7_add1_attrib_digest(PKCS7_SIGNER_INFO *si,
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const unsigned char *md, 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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if (os == NULL)
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return 0;
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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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}
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