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/*************************************************
* EMSA2 Header File *
* (C) 1999-2007 Jack Lloyd *
*************************************************/
#ifndef BOTAN_EMSA2_H__
#define BOTAN_EMSA2_H__
#include <botan/emsa.h>
#include <botan/hash.h>
namespace Botan {
/*************************************************
* EMSA2 *
*************************************************/
class BOTAN_DLL EMSA2 : public EMSA
{
public:
EMSA2(HashFunction* hash);
~EMSA2() { delete hash; }
private:
void update(const byte[], u32bit);
SecureVector<byte> raw_data();
SecureVector<byte> encoding_of(const MemoryRegion<byte>&, u32bit,
RandomNumberGenerator& rng);
bool verify(const MemoryRegion<byte>&, const MemoryRegion<byte>&,
u32bit) throw();
SecureVector<byte> empty_hash;
HashFunction* hash;
byte hash_id;
};
}
#endif
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