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# sha.h

    00001 #ifndef CRYPTOPP_SHA_H
    00002 #define CRYPTOPP_SHA_H
    00003
    00004 #include "iterhash.h"
    00005
    00006 NAMESPACE_BEGIN(CryptoPP)
    00007
    00008 /// <a href="http://www.weidai.com/scan-mirror/md.html#SHA-1">SHA-1</a>
    00009 class CRYPTOPP_DLL SHA1 : public IteratedHashWithStaticTransform<word32, BigEndian, 64, 20, SHA1>
    00010 {
    00011 public:
    00012         static void CRYPTOPP_API InitState(HashWordType *state);
    00013         static void CRYPTOPP_API Transform(word32 *digest, const word32 *data);
    00014         static const char * CRYPTOPP_API StaticAlgorithmName() {return "SHA-1";}
    00015 };
    00016
    00017 typedef SHA1 SHA;       // for backwards compatibility
    00018
    00019 //! implements the SHA-256 standard
    00020 class CRYPTOPP_DLL SHA256 : public IteratedHashWithStaticTransform<word32, BigEndian, 64, 32, SHA256>
    00021 {
    00022 public:
    00023         static void CRYPTOPP_API InitState(HashWordType *state);
    00024         static void CRYPTOPP_API Transform(word32 *digest, const word32 *data);
    00025         static const char * CRYPTOPP_API StaticAlgorithmName() {return "SHA-256";}
    00026
    00027 protected:
    00028         static const word32 K[64];
    00029 };
    00030
    00031 //! implements the SHA-224 standard
    00032 class CRYPTOPP_DLL SHA224 : public IteratedHashWithStaticTransform<word32, BigEndian, 64, 32, SHA224, 28>
    00033 {
    00034 public:
    00035         static void CRYPTOPP_API InitState(HashWordType *state);
    00036         static void CRYPTOPP_API Transform(word32 *digest, const word32 *data) {SHA256::Transform(digest, data);}
    00037         static const char * CRYPTOPP_API StaticAlgorithmName() {return "SHA-224";}
    00038 };
    00039
    00040 #ifdef WORD64_AVAILABLE
    00041
    00042 //! implements the SHA-512 standard
    00043 class CRYPTOPP_DLL SHA512 : public IteratedHashWithStaticTransform<word64, BigEndian, 128, 64, SHA512>
    00044 {
    00045 public:
    00046         static void CRYPTOPP_API InitState(HashWordType *state);
    00047         static void CRYPTOPP_API Transform(word64 *digest, const word64 *data);
    00048         static const char * CRYPTOPP_API StaticAlgorithmName() {return "SHA-512";}
    00049
    00050 protected:
    00051         static const word64 K[80];
    00052 };
    00053
    00054 //! implements the SHA-384 standard
    00055 class CRYPTOPP_DLL SHA384 : public IteratedHashWithStaticTransform<word64, BigEndian, 128, 64, SHA384, 48>
    00056 {
    00057 public:
    00058         static void CRYPTOPP_API InitState(HashWordType *state);
    00059         static void CRYPTOPP_API Transform(word64 *digest, const word64 *data) {SHA512::Transform(digest, data);}
    00060         static const char * CRYPTOPP_API StaticAlgorithmName() {return "SHA-384";}
    00061 };
    00062
    00063 #endif
    00064
    00065 NAMESPACE_END
    00066
    00067 #endif