You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
62 lines
2.3 KiB
62 lines
2.3 KiB
4 years ago
|
// tiger.h - originally written and placed in the public domain by Wei Dai
|
||
|
|
|
||
|
|
/// \file tiger.h
|
||
|
|
/// \brief Classes for the Tiger message digest
|
||
|
|
/// \details Crypto++ provides the original Tiger hash that was
|
||
|
|
/// submitted to the NESSIE project. The implementation is different
|
||
|
|
/// from the revised Tiger2 hash.
|
||
|
|
/// \sa <a href="https://www.cryptopp.com/wiki/Tiger">Tiger</a> and
|
||
|
|
/// <a href="http://www.cs.technion.ac.il/~biham/Reports/Tiger/">Tiger:
|
||
|
|
/// A Fast New Cryptographic Hash Function</a>
|
||
|
|
/// \since Crypto++ 2.1
|
||
|
|
|
||
|
|
#ifndef CRYPTOPP_TIGER_H
|
||
|
|
#define CRYPTOPP_TIGER_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_TIGER_ASM 1
|
||
|
|
#endif
|
||
|
|
|
||
|
|
NAMESPACE_BEGIN(CryptoPP)
|
||
|
|
|
||
|
|
/// \brief Tiger message digest
|
||
|
|
/// \details Crypto++ provides the original Tiger hash that was
|
||
|
|
/// submitted to the NESSIE project. The implementation is different
|
||
|
|
/// from the revised Tiger2 hash.
|
||
|
|
/// \sa <a href="https://www.cryptopp.com/wiki/Tiger">Tiger</a> and
|
||
|
|
/// <a href="http://www.cs.technion.ac.il/~biham/Reports/Tiger/">Tiger:
|
||
|
|
/// A Fast New Cryptographic Hash Function</a>
|
||
|
|
/// \since Crypto++ 2.1
|
||
|
|
class Tiger : public IteratedHashWithStaticTransform<word64, LittleEndian, 64, 24, Tiger>
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return "Tiger";}
|
||
|
|
std::string AlgorithmProvider() const;
|
||
|
|
|
||
|
|
/// \brief Initialize state array
|
||
|
|
/// \param state the state of the hash
|
||
|
|
static void InitState(HashWordType *state);
|
||
|
|
/// \brief Operate the hash
|
||
|
|
/// \param digest the state of the hash
|
||
|
|
/// \param data the data to be digested
|
||
|
|
static void Transform(word64 *digest, const word64 *data);
|
||
|
|
/// \brief Computes the hash of the current message
|
||
|
|
/// \param digest a pointer to the buffer to receive the hash
|
||
|
|
/// \param digestSize the size of the truncated digest, in bytes
|
||
|
|
/// \details TruncatedFinal() call Final() and then copies digestSize bytes to digest.
|
||
|
|
/// The hash is restarted the hash for the next message.
|
||
|
|
void TruncatedFinal(byte *digest, size_t digestSize);
|
||
|
|
|
||
|
|
protected:
|
||
|
|
static const word64 table[4*256+3];
|
||
|
|
};
|
||
|
|
|
||
|
|
NAMESPACE_END
|
||
|
|
|
||
|
|
#endif
|