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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.
*/
/*****************************************************************************
OSSLAES.h
OpenSSL AES implementation
*****************************************************************************/
#ifndef _SOFTHSM_V2_OSSLAES_H
#define _SOFTHSM_V2_OSSLAES_H
#include <openssl/evp.h>
#include <string>
#include "config.h"
#include "OSSLEVPSymmetricAlgorithm.h"
class OSSLAES : public OSSLEVPSymmetricAlgorithm
{
public:
// Destructor
virtual ~OSSLAES() { }
// Wrap/Unwrap keys
virtual bool wrapKey(const SymmetricKey* key, const SymWrap::Type mode, const ByteString& in, ByteString& out);
virtual bool unwrapKey(const SymmetricKey* key, const SymWrap::Type mode, const ByteString& in, ByteString& out);
// Return the block size
virtual size_t getBlockSize() const;
protected:
// Return the right EVP cipher for the operation
virtual const EVP_CIPHER* getCipher() const;
const EVP_CIPHER* getWrapCipher(const SymWrap::Type mode, const SymmetricKey* key) const;
bool wrapUnwrapKey(const SymmetricKey* key, const SymWrap::Type mode, const ByteString& in, ByteString& out, const int wrap) const;
bool checkLength(const int insize, const int minsize, const char * const operation) const;
};
#endif // !_SOFTHSM_V2_OSSLAES_H
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