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#ifndef CRYPTOPP_SHA_H
#define CRYPTOPP_SHA_H
#include "iterhash.h"
NAMESPACE_BEGIN(CryptoPP)
/// <a href="http://www.weidai.com/scan-mirror/md.html#SHA-1">SHA-1</a>
class SHA : public IteratedHashWithStaticTransform<word32, BigEndian, 64, SHA>
{
public:
enum {DIGESTSIZE = 20};
SHA() : IteratedHashWithStaticTransform<word32, BigEndian, 64, SHA>(DIGESTSIZE) {Init();}
static void Transform(word32 *digest, const word32 *data);
static const char *StaticAlgorithmName() {return "SHA-1";}
protected:
void Init();
};
typedef SHA SHA1;
//! implements the SHA-256 standard
class SHA256 : public IteratedHashWithStaticTransform<word32, BigEndian, 64, SHA256>
{
public:
enum {DIGESTSIZE = 32};
SHA256() : IteratedHashWithStaticTransform<word32, BigEndian, 64, SHA256>(DIGESTSIZE) {Init();}
static void Transform(word32 *digest, const word32 *data);
static const char *StaticAlgorithmName() {return "SHA-256";}
protected:
void Init();
static const word32 K[64];
};
#ifdef WORD64_AVAILABLE
//! implements the SHA-512 standard
class SHA512 : public IteratedHashWithStaticTransform<word64, BigEndian, 128, SHA512>
{
public:
enum {DIGESTSIZE = 64};
SHA512() : IteratedHashWithStaticTransform<word64, BigEndian, 128, SHA512>(DIGESTSIZE) {Init();}
static void Transform(word64 *digest, const word64 *data);
static const char *StaticAlgorithmName() {return "SHA-512";}
protected:
void Init();
static const word64 K[80];
};
//! implements the SHA-384 standard
class SHA384 : public IteratedHashWithStaticTransform<word64, BigEndian, 128, SHA512>
{
public:
enum {DIGESTSIZE = 48};
SHA384() : IteratedHashWithStaticTransform<word64, BigEndian, 128, SHA512>(64) {Init();}
unsigned int DigestSize() const {return DIGESTSIZE;};
static const char *StaticAlgorithmName() {return "SHA-384";}
protected:
void Init();
};
#endif
NAMESPACE_END
#endif
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