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/*
* Copyright (c) 2017 SURFnet bv
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 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 AUTHOR 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.
*/
/*****************************************************************************
OSSLEVPCMacAlgorithm.h
OpenSSL CMAC algorithm implementation
*****************************************************************************/
#ifndef _SOFTHSM_V2_OSSLEVPCMACALGORITHM_H
#define _SOFTHSM_V2_OSSLEVPCMACALGORITHM_H
#include <string>
#include "config.h"
#include "SymmetricKey.h"
#include "MacAlgorithm.h"
#include <openssl/evp.h>
#include <openssl/cmac.h>
class OSSLEVPCMacAlgorithm : public MacAlgorithm
{
public:
// Constructor
OSSLEVPCMacAlgorithm() {
curCTX = NULL;
};
// Destructor
~OSSLEVPCMacAlgorithm();
// Signing functions
virtual bool signInit(const SymmetricKey* key);
virtual bool signUpdate(const ByteString& dataToSign);
virtual bool signFinal(ByteString& signature);
// Verification functions
virtual bool verifyInit(const SymmetricKey* key);
virtual bool verifyUpdate(const ByteString& originalData);
virtual bool verifyFinal(ByteString& signature);
// Return the MAC size
virtual size_t getMacSize() const = 0;
protected:
// Return the right cipher for the operation
virtual const EVP_CIPHER* getEVPCipher() const = 0;
private:
// The current context
CMAC_CTX* curCTX;
};
#endif // !_SOFTHSM_V2_OSSLEVPCMACALGORITHM_H
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