97 lines
3.2 KiB
C
97 lines
3.2 KiB
C
/*
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* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
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* 2010.
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*/
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/* ====================================================================
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* Copyright (c) 2010 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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#include <stdio.h>
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#include "cryptlib.h"
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#include <openssl/evp.h>
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#include <openssl/cmac.h>
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#include "asn1_locl.h"
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/*
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* CMAC "ASN1" method. This is just here to indicate the maximum CMAC output
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* length and to free up a CMAC key.
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*/
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static int cmac_size(const EVP_PKEY *pkey)
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{
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return EVP_MAX_BLOCK_LENGTH;
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}
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static void cmac_key_free(EVP_PKEY *pkey)
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{
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CMAC_CTX *cmctx = (CMAC_CTX *)pkey->pkey.ptr;
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if (cmctx)
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CMAC_CTX_free(cmctx);
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}
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const EVP_PKEY_ASN1_METHOD cmac_asn1_meth = {
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EVP_PKEY_CMAC,
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EVP_PKEY_CMAC,
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0,
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"CMAC",
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"OpenSSL CMAC method",
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0, 0, 0, 0,
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0, 0, 0,
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cmac_size,
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0,
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0, 0, 0, 0, 0, 0, 0,
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cmac_key_free,
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0,
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0, 0
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};
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