149 lines
4.7 KiB
C
149 lines
4.7 KiB
C
/* v3_skey.c */
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/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
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* project 1999.
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*/
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/* ====================================================================
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* Copyright (c) 1999 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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#include <stdio.h>
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#include <string.h>
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#include <openssl/digest.h>
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#include <openssl/err.h>
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#include <openssl/obj.h>
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#include <openssl/x509v3.h>
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static ASN1_OCTET_STRING *s2i_skey_id(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, char *str);
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const X509V3_EXT_METHOD v3_skey_id = {
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NID_subject_key_identifier, 0, ASN1_ITEM_ref(ASN1_OCTET_STRING),
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0,0,0,0,
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(X509V3_EXT_I2S)i2s_ASN1_OCTET_STRING,
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(X509V3_EXT_S2I)s2i_skey_id,
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0,0,0,0,
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NULL};
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char *i2s_ASN1_OCTET_STRING(X509V3_EXT_METHOD *method,
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ASN1_OCTET_STRING *oct)
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{
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return hex_to_string(oct->data, oct->length);
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}
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ASN1_OCTET_STRING *s2i_ASN1_OCTET_STRING(X509V3_EXT_METHOD *method,
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X509V3_CTX *ctx, char *str)
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{
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ASN1_OCTET_STRING *oct;
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long length;
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if(!(oct = M_ASN1_OCTET_STRING_new())) {
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OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
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return NULL;
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}
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if(!(oct->data = string_to_hex(str, &length))) {
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M_ASN1_OCTET_STRING_free(oct);
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return NULL;
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}
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oct->length = length;
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return oct;
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}
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static ASN1_OCTET_STRING *s2i_skey_id(X509V3_EXT_METHOD *method,
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X509V3_CTX *ctx, char *str)
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{
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ASN1_OCTET_STRING *oct;
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ASN1_BIT_STRING *pk;
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unsigned char pkey_dig[EVP_MAX_MD_SIZE];
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unsigned int diglen;
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if(strcmp(str, "hash")) return s2i_ASN1_OCTET_STRING(method, ctx, str);
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if(!(oct = M_ASN1_OCTET_STRING_new())) {
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OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
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return NULL;
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}
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if(ctx && (ctx->flags == CTX_TEST)) return oct;
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if(!ctx || (!ctx->subject_req && !ctx->subject_cert)) {
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OPENSSL_PUT_ERROR(X509V3, X509V3_R_NO_PUBLIC_KEY);
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goto err;
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}
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if(ctx->subject_req)
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pk = ctx->subject_req->req_info->pubkey->public_key;
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else pk = ctx->subject_cert->cert_info->key->public_key;
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if(!pk) {
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OPENSSL_PUT_ERROR(X509V3, X509V3_R_NO_PUBLIC_KEY);
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goto err;
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}
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if (!EVP_Digest(pk->data, pk->length, pkey_dig, &diglen, EVP_sha1(), NULL))
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goto err;
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if(!M_ASN1_OCTET_STRING_set(oct, pkey_dig, diglen)) {
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OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
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goto err;
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}
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return oct;
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err:
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M_ASN1_OCTET_STRING_free(oct);
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return NULL;
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}
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