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/*************************************************
* SHA-{384,512} Header File *
* (C) 1999-2007 Jack Lloyd *
*************************************************/
#ifndef BOTAN_SHA_64BIT_H__
#define BOTAN_SHA_64BIT_H__
#include <botan/mdx_hash.h>
namespace Botan {
/*************************************************
* SHA-{384,512} Base *
*************************************************/
class SHA_64_BASE : public MDx_HashFunction
{
protected:
void clear() throw();
SHA_64_BASE(u32bit out) : MDx_HashFunction(out, 128, true, true, 16) {}
SecureBuffer<u64bit, 8> digest;
private:
void hash(const byte[]);
void copy_out(byte[]);
SecureBuffer<u64bit, 80> W;
};
/*************************************************
* SHA-384 *
*************************************************/
class SHA_384 : public SHA_64_BASE
{
public:
void clear() throw();
std::string name() const { return "SHA-384"; }
HashFunction* clone() const { return new SHA_384; }
SHA_384() : SHA_64_BASE(48) { clear(); }
};
/*************************************************
* SHA-512 *
*************************************************/
class SHA_512 : public SHA_64_BASE
{
public:
void clear() throw();
std::string name() const { return "SHA-512"; }
HashFunction* clone() const { return new SHA_512; }
SHA_512() : SHA_64_BASE(64) { clear(); }
};
}
#endif
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