sha.h

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// sha.h - originally written and placed in the public domain by Wei Dai
 
 
#ifndef CRYPTOPP_SHA_H
#define CRYPTOPP_SHA_H
 
#include "config.h"
#include "iterhash.h"
 
// Clang 3.3 integrated assembler crash on Linux. Clang 3.4 due to compiler
// error with .intel_syntax, http://llvm.org/bugs/show_bug.cgi?id=24232
#if CRYPTOPP_BOOL_X32 || defined(CRYPTOPP_DISABLE_MIXED_ASM)
# define CRYPTOPP_DISABLE_SHA_ASM 1
#endif
 
NAMESPACE_BEGIN(CryptoPP)
 
 
class CRYPTOPP_DLL SHA1 : public IteratedHashWithStaticTransform<word32, BigEndian, 64, 20, SHA1>
{
public:
        static void CRYPTOPP_API InitState(HashWordType *state);
        static void CRYPTOPP_API Transform(HashWordType *digest, const HashWordType *data);
        CRYPTOPP_STATIC_CONSTEXPR const char* CRYPTOPP_API StaticAlgorithmName() {return "SHA-1";}
        // Algorithm class
        std::string AlgorithmProvider() const;
 
protected:
        size_t HashMultipleBlocks(const HashWordType *input, size_t length);
};
 
class CRYPTOPP_DLL SHA256 : public IteratedHashWithStaticTransform<word32, BigEndian, 64, 32, SHA256, 32, true>
{
public:
        static void CRYPTOPP_API InitState(HashWordType *state);
        static void CRYPTOPP_API Transform(HashWordType *digest, const HashWordType *data);
        CRYPTOPP_STATIC_CONSTEXPR const char* CRYPTOPP_API StaticAlgorithmName() {return "SHA-256";}
 
        // Algorithm class
        std::string AlgorithmProvider() const;
 
protected:
        size_t HashMultipleBlocks(const HashWordType *input, size_t length);
};
 
class CRYPTOPP_DLL SHA224 : public IteratedHashWithStaticTransform<word32, BigEndian, 64, 32, SHA224, 28, true>
{
public:
        static void CRYPTOPP_API InitState(HashWordType *state);
        static void CRYPTOPP_API Transform(HashWordType *digest, const HashWordType *data) {SHA256::Transform(digest, data);}
        CRYPTOPP_STATIC_CONSTEXPR const char* CRYPTOPP_API StaticAlgorithmName() {return "SHA-224";}
 
        // Algorithm class
        std::string AlgorithmProvider() const;
 
protected:
        size_t HashMultipleBlocks(const HashWordType *input, size_t length);
};
 
class CRYPTOPP_DLL SHA512 : public IteratedHashWithStaticTransform<word64, BigEndian, 128, 64, SHA512, 64, true>
{
public:
        static void CRYPTOPP_API InitState(HashWordType *state);
        static void CRYPTOPP_API Transform(HashWordType *digest, const HashWordType *data);
        CRYPTOPP_STATIC_CONSTEXPR const char* CRYPTOPP_API StaticAlgorithmName() {return "SHA-512";}
 
        // Algorithm class
        std::string AlgorithmProvider() const;
};
 
class CRYPTOPP_DLL SHA384 : public IteratedHashWithStaticTransform<word64, BigEndian, 128, 64, SHA384, 48, true>
{
public:
        static void CRYPTOPP_API InitState(HashWordType *state);
        static void CRYPTOPP_API Transform(HashWordType *digest, const HashWordType *data) {SHA512::Transform(digest, data);}
        CRYPTOPP_STATIC_CONSTEXPR const char* CRYPTOPP_API StaticAlgorithmName() {return "SHA-384";}
 
        // Algorithm class
        std::string AlgorithmProvider() const;
};
 
NAMESPACE_END
 
#endif