/*****************************************************************
|
| Neptune - Message Digests
|
| Copyright (c) 2002-2010, Axiomatic Systems, LLC.
| All rights reserved.
|
| Redistribution and use in source and binary forms, with or without
| modification, are permitted provided that the following conditions are met:
| * Redistributions of source code must retain the above copyright
| notice, this list of conditions and the following disclaimer.
| * 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.
| * Neither the name of Axiomatic Systems nor the
| names of its contributors may be used to endorse or promote products
| derived from this software without specific prior written permission.
|
| THIS SOFTWARE IS PROVIDED BY AXIOMATIC SYSTEMS ''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 AXIOMATIC SYSTEMS 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.
|
****************************************************************/
#ifndef _NPT_DIGEST_H_
#define _NPT_DIGEST_H_
/*----------------------------------------------------------------------
| includes
+---------------------------------------------------------------------*/
#include "NptTypes.h"
#include "NptDataBuffer.h"
/*----------------------------------------------------------------------
| NPT_Digest
+---------------------------------------------------------------------*/
class NPT_Digest {
public:
// types
typedef enum {
ALGORITHM_SHA1,
ALGORITHM_SHA256,
ALGORITHM_MD5
} Algorithm;
// factory
static NPT_Result Create(Algorithm algorithm, NPT_Digest*& digest);
// methods
virtual ~NPT_Digest() {}
virtual unsigned int GetSize() = 0;
virtual NPT_Result Update(const NPT_UInt8* data, NPT_Size data_size) = 0;
virtual NPT_Result GetDigest(NPT_DataBuffer& digest) = 0;
protected:
NPT_Digest() {} // don't instantiate directly
};
class NPT_Hmac {
public:
static NPT_Result Create(NPT_Digest::Algorithm algorithm,
const NPT_UInt8* key,
NPT_Size key_size,
NPT_Digest*& digest);
private:
// methods
NPT_Hmac() {} // don't instantiate
};
#endif // _NPT_DIGEST_H_