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/*
* KDF/MGF
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_KDF_BASE_H__
#define BOTAN_KDF_BASE_H__
#include <botan/secmem.h>
#include <botan/types.h>
namespace Botan {
/*
* Key Derivation Function
*/
class BOTAN_DLL KDF
{
public:
SecureVector<byte> derive_key(u32bit, const MemoryRegion<byte>&,
const std::string& = "") const;
SecureVector<byte> derive_key(u32bit, const MemoryRegion<byte>&,
const MemoryRegion<byte>&) const;
SecureVector<byte> derive_key(u32bit, const MemoryRegion<byte>&,
const byte[], u32bit) const;
SecureVector<byte> derive_key(u32bit, const byte[], u32bit,
const std::string& = "") const;
SecureVector<byte> derive_key(u32bit, const byte[], u32bit,
const byte[], u32bit) const;
virtual ~KDF() {}
private:
virtual SecureVector<byte> derive(u32bit, const byte[], u32bit,
const byte[], u32bit) const = 0;
};
/*
* Mask Generation Function
*/
class BOTAN_DLL MGF
{
public:
virtual void mask(const byte[], u32bit, byte[], u32bit) const = 0;
virtual ~MGF() {}
};
}
#endif
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