blob: 3d181cec31ac4e7db58a925000f08f0fa93bf309 [file] [log] [blame]
/*
* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
* 1999.
*/
/* ====================================================================
* Copyright (c) 1999 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 <limits.h>
#include <stdio.h>
#include <string.h>
#include <openssl/digest.h>
#include <openssl/err.h>
#include <openssl/obj.h>
#include <openssl/mem.h>
#include <openssl/x509.h>
#include "internal.h"
char *i2s_ASN1_OCTET_STRING(const X509V3_EXT_METHOD *method,
const ASN1_OCTET_STRING *oct) {
return x509v3_bytes_to_hex(oct->data, oct->length);
}
ASN1_OCTET_STRING *s2i_ASN1_OCTET_STRING(const X509V3_EXT_METHOD *method,
const X509V3_CTX *ctx,
const char *str) {
size_t len;
uint8_t *data = x509v3_hex_to_bytes(str, &len);
if (data == NULL) {
return NULL;
}
if (len > INT_MAX) {
OPENSSL_PUT_ERROR(X509V3, ERR_R_OVERFLOW);
goto err;
}
ASN1_OCTET_STRING *oct = ASN1_OCTET_STRING_new();
if (oct == NULL) {
goto err;
}
ASN1_STRING_set0(oct, data, (int)len);
return oct;
err:
OPENSSL_free(data);
return NULL;
}
static char *i2s_ASN1_OCTET_STRING_cb(const X509V3_EXT_METHOD *method,
void *ext) {
return i2s_ASN1_OCTET_STRING(method, ext);
}
static void *s2i_skey_id(const X509V3_EXT_METHOD *method, const X509V3_CTX *ctx,
const char *str) {
ASN1_OCTET_STRING *oct;
ASN1_BIT_STRING *pk;
unsigned char pkey_dig[EVP_MAX_MD_SIZE];
unsigned int diglen;
if (strcmp(str, "hash")) {
return s2i_ASN1_OCTET_STRING(method, ctx, str);
}
if (!(oct = ASN1_OCTET_STRING_new())) {
return NULL;
}
if (ctx && (ctx->flags == X509V3_CTX_TEST)) {
return oct;
}
if (!ctx || (!ctx->subject_req && !ctx->subject_cert)) {
OPENSSL_PUT_ERROR(X509V3, X509V3_R_NO_PUBLIC_KEY);
goto err;
}
if (ctx->subject_req) {
pk = ctx->subject_req->req_info->pubkey->public_key;
} else {
pk = ctx->subject_cert->cert_info->key->public_key;
}
if (!pk) {
OPENSSL_PUT_ERROR(X509V3, X509V3_R_NO_PUBLIC_KEY);
goto err;
}
if (!EVP_Digest(pk->data, pk->length, pkey_dig, &diglen, EVP_sha1(), NULL)) {
goto err;
}
if (!ASN1_OCTET_STRING_set(oct, pkey_dig, diglen)) {
goto err;
}
return oct;
err:
ASN1_OCTET_STRING_free(oct);
return NULL;
}
const X509V3_EXT_METHOD v3_skey_id = {
NID_subject_key_identifier,
0,
ASN1_ITEM_ref(ASN1_OCTET_STRING),
0,
0,
0,
0,
i2s_ASN1_OCTET_STRING_cb,
s2i_skey_id,
0,
0,
0,
0,
NULL,
};