90 lines
3.2 KiB
C
Executable file
90 lines
3.2 KiB
C
Executable file
/* $OpenBSD: cm_ameth.c,v 1.8 2021/12/12 21:30:13 tb Exp $ */
|
|
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
|
|
* project 2010.
|
|
*/
|
|
/* ====================================================================
|
|
* Copyright (c) 2010 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.
|
|
* ====================================================================
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <openssl/cmac.h>
|
|
#include <openssl/evp.h>
|
|
|
|
#include "asn1_locl.h"
|
|
#include "evp_locl.h"
|
|
|
|
/* CMAC "ASN1" method. This is just here to indicate the
|
|
* maximum CMAC output length and to free up a CMAC
|
|
* key.
|
|
*/
|
|
|
|
static int
|
|
cmac_size(const EVP_PKEY *pkey)
|
|
{
|
|
return EVP_MAX_BLOCK_LENGTH;
|
|
}
|
|
|
|
static void
|
|
cmac_key_free(EVP_PKEY *pkey)
|
|
{
|
|
CMAC_CTX *cmctx = (CMAC_CTX *)pkey->pkey.ptr;
|
|
|
|
CMAC_CTX_free(cmctx);
|
|
}
|
|
|
|
const EVP_PKEY_ASN1_METHOD cmac_asn1_meth = {
|
|
.pkey_id = EVP_PKEY_CMAC,
|
|
.pkey_base_id = EVP_PKEY_CMAC,
|
|
|
|
.pem_str = "CMAC",
|
|
.info = "OpenSSL CMAC method",
|
|
|
|
.pkey_size = cmac_size,
|
|
.pkey_free = cmac_key_free
|
|
};
|