00001 #ifndef CRYPTOPP_HAVAL_H
00002 #define CRYPTOPP_HAVAL_H
00003
00004 #include "iterhash.h"
00005
00006 NAMESPACE_BEGIN(CryptoPP)
00007
00008
00009 class HAVAL : public IteratedHash<word32, LittleEndian, 128>
00010 {
00011 public:
00012 enum {DIGESTSIZE = 32, HAVAL_VERSION = 1};
00013
00014
00015
00016 HAVAL(unsigned int digestSize=DIGESTSIZE, unsigned int passes=3);
00017 void TruncatedFinal(byte *hash, unsigned int size);
00018 unsigned int DigestSize() const {return digestSize;}
00019
00020 static const char * StaticAlgorithmName() {return "HAVAL";}
00021 std::string AlgorithmName() const {return std::string("HAVAL(") + IntToString(digestSize) + "," + IntToString(pass) + ")";}
00022
00023 protected:
00024 static const unsigned int wi2[32], wi3[32], wi4[32], wi5[32];
00025 static const word32 mc2[32], mc3[32], mc4[32], mc5[32];
00026
00027 void Init();
00028 void Tailor(unsigned int FPTLEN);
00029 void HashEndianCorrectedBlock(const word32 *in);
00030
00031 const unsigned int digestSize, pass;
00032 };
00033
00034
00035 class HAVAL3 : public HAVAL
00036 {
00037 public:
00038 HAVAL3(unsigned int digestSize=DIGESTSIZE) : HAVAL(digestSize, 3) {}
00039 static void Transform(word32 *buf, const word32 *in);
00040 };
00041
00042
00043 class HAVAL4 : public HAVAL
00044 {
00045 public:
00046 HAVAL4(unsigned int digestSize=DIGESTSIZE) : HAVAL(digestSize, 4) {}
00047 static void Transform(word32 *buf, const word32 *in);
00048 };
00049
00050
00051 class HAVAL5 : public HAVAL
00052 {
00053 public:
00054 HAVAL5(unsigned int digestSize=DIGESTSIZE) : HAVAL(digestSize, 5) {}
00055 static void Transform(word32 *buf, const word32 *in);
00056 };
00057
00058 NAMESPACE_END
00059
00060 #endif