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sha.h

#ifndef CRYPTOPP_SHA_H
#define CRYPTOPP_SHA_H

#include "iterhash.h"

NAMESPACE_BEGIN(CryptoPP)

class SHA : public IteratedHash<word32, true, 64>
{
public:
        enum {DIGESTSIZE = 20};
        SHA() : IteratedHash<word32, true, 64>(DIGESTSIZE) {Init();}
        static void Transform(word32 *digest, const word32 *data);

protected:
        void Init();
        void vTransform(const word32 *data) {Transform(digest, data);}
};

typedef SHA SHA1;

class SHA256 : public IteratedHash<word32, true, 64>
{
public:
        enum {DIGESTSIZE = 32};
        SHA256() : IteratedHash<word32, true, 64>(DIGESTSIZE) {Init();}
        static void Transform(word32 *digest, const word32 *data);

protected:
        void Init();
        void vTransform(const word32 *data) {Transform(digest, data);}

        const static word32 K[64];
};

#ifdef WORD64_AVAILABLE

class SHA512 : public IteratedHash<word64, true, 128>
{
public:
        enum {DIGESTSIZE = 64};
        SHA512() : IteratedHash<word64, true, 128>(DIGESTSIZE) {Init();}
        static void Transform(word64 *digest, const word64 *data);

protected:
        void Init();
        void vTransform(const word64 *data) {Transform(digest, data);}

        const static word64 K[80];
};

class SHA384 : public IteratedHash<word64, true, 128>
{
public:
        enum {DIGESTSIZE = 48};
        SHA384() : IteratedHash<word64, true, 128>(64) {Init();}
        unsigned int DigestSize() const {return DIGESTSIZE;};

protected:
        void Init();
        void vTransform(const word64 *data) {SHA512::Transform(digest, data);}
};

#endif

NAMESPACE_END

#endif

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