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/*
* SHA-{224,256}
* (C) 1999-2011 Jack Lloyd
* 2007 FlexSecure GmbH
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_SHA_224_256_H__
#define BOTAN_SHA_224_256_H__
#include <botan/mdx_hash.h>
namespace Botan {
/**
* SHA-224
*/
class BOTAN_DLL SHA_224 : public MDx_HashFunction
{
public:
std::string name() const { return "SHA-224"; }
size_t output_length() const { return 28; }
HashFunction* clone() const { return new SHA_224; }
void clear();
SHA_224() : MDx_HashFunction(64, true, true), digest(8)
{ clear(); }
private:
void compress_n(const byte[], size_t blocks);
void copy_out(byte[]);
secure_vector<u32bit> digest;
};
/**
* SHA-256
*/
class BOTAN_DLL SHA_256 : public MDx_HashFunction
{
public:
std::string name() const { return "SHA-256"; }
size_t output_length() const { return 32; }
HashFunction* clone() const { return new SHA_256; }
void clear();
SHA_256() : MDx_HashFunction(64, true, true), digest(8)
{ clear(); }
private:
void compress_n(const byte[], size_t blocks);
void copy_out(byte[]);
secure_vector<u32bit> digest;
};
}
#endif
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