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/*
* Copyright (c) 2010 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.
*/
/*****************************************************************************
MacAlgorithm.h
Base class for MAC algorithm classes
*****************************************************************************/
#ifndef _SOFTHSM_V2_MACALGORITHM_H
#define _SOFTHSM_V2_MACALGORITHM_H
#include <string>
#include "config.h"
#include "SymmetricKey.h"
#include "RNG.h"
struct MacAlgo
{
enum Type
{
Unknown,
HMAC_MD5,
HMAC_SHA1,
HMAC_SHA224,
HMAC_SHA256,
HMAC_SHA384,
HMAC_SHA512,
HMAC_GOST,
CMAC_DES,
CMAC_AES
};
};
class MacAlgorithm
{
public:
// Base constructors
MacAlgorithm();
// Destructor
virtual ~MacAlgorithm() { }
// 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);
// Key
virtual unsigned long getMinKeySize();
virtual unsigned long getMaxKeySize();
virtual void recycleKey(SymmetricKey* toRecycle);
// Return the MAC size
virtual size_t getMacSize() const = 0;
protected:
// The current key
const SymmetricKey* currentKey;
private:
// The current operation
enum
{
NONE,
SIGN,
VERIFY
}
currentOperation;
};
#endif // !_SOFTHSM_V2_MACALGORITHM_H
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