Inheritance diagram for Tiger:

Public Member Functions
std::string	AlgorithmProvider () const
	Retrieve the provider of this algorithm. More...

void	TruncatedFinal (byte *digest, size_t digestSize)
	Computes the hash of the current message. More...

Public Member Functions inherited from IteratedHashWithStaticTransform< word64, LittleEndian, 64, 24, Tiger >
unsigned int	DigestSize () const
	Provides the digest size of the hash. More...

Public Member Functions inherited from ClonableImpl< Tiger, AlgorithmImpl< IteratedHash< word64, LittleEndian, T_BlockSize >, Tiger > >
Clonable *	Clone () const
	Create a copy of this object. More...

Public Member Functions inherited from AlgorithmImpl< IteratedHash< word64, LittleEndian, T_BlockSize >, Tiger >
std::string	AlgorithmName () const
	The algorithm name. More...

Public Member Functions inherited from IteratedHash< word64, LittleEndian, T_BlockSize >
unsigned int	BlockSize () const
	Provides the block size of the hash. More...

ByteOrder	GetByteOrder () const
	Provides the byte order of the hash. More...

void	CorrectEndianess (HashWordType out, const HashWordType in, size_t byteCount)
	Adjusts the byte ordering of the hash. More...

Public Member Functions inherited from IteratedHashBase< word64, HashTransformation >
	IteratedHashBase ()
	Construct an IteratedHashBase.

unsigned int	OptimalBlockSize () const
	Provides the input block size most efficient for this cipher. More...

unsigned int	OptimalDataAlignment () const
	Provides input and output data alignment for optimal performance. More...

void	Update (const byte *input, size_t length)
	Updates a hash with additional input. More...

byte *	CreateUpdateSpace (size_t &size)
	Requests space which can be written into by the caller. More...

void	Restart ()
	Restart the hash. More...

void	TruncatedFinal (byte *digest, size_t digestSize)
	Computes the hash of the current message. More...

virtual std::string	AlgorithmProvider () const
	Retrieve the provider of this algorithm. More...

Public Member Functions inherited from HashTransformation
HashTransformation &	Ref ()
	Provides a reference to this object. More...

virtual void	Final (byte *digest)
	Computes the hash of the current message. More...

virtual unsigned int	DigestSize () const =0
	Provides the digest size of the hash. More...

unsigned int	TagSize () const
	Provides the tag size of the hash. More...

virtual unsigned int	BlockSize () const
	Provides the block size of the compression function. More...

virtual unsigned int	OptimalBlockSize () const
	Provides the input block size most efficient for this hash. More...

virtual unsigned int	OptimalDataAlignment () const
	Provides input and output data alignment for optimal performance. More...

virtual void	CalculateDigest (byte digest, const byte input, size_t length)
	Updates the hash with additional input and computes the hash of the current message. More...

virtual bool	Verify (const byte *digest)
	Verifies the hash of the current message. More...

virtual bool	VerifyDigest (const byte digest, const byte input, size_t length)
	Updates the hash with additional input and verifies the hash of the current message. More...

virtual void	CalculateTruncatedDigest (byte digest, size_t digestSize, const byte input, size_t length)
	Updates the hash with additional input and computes the hash of the current message. More...

virtual bool	TruncatedVerify (const byte *digest, size_t digestLength)
	Verifies the hash of the current message. More...

virtual bool	VerifyTruncatedDigest (const byte digest, size_t digestLength, const byte input, size_t length)
	Updates the hash with additional input and verifies the hash of the current message. More...

Public Member Functions inherited from Algorithm
	Algorithm (bool checkSelfTestStatus=true)
	Interface for all crypto algorithms. More...

virtual std::string	AlgorithmName () const
	Provides the name of this algorithm. More...

Public Member Functions inherited from Clonable
virtual Clonable *	Clone () const
	Copies this object. More...

Static Public Member Functions
static const char *	StaticAlgorithmName ()

static void	InitState (HashWordType *state)
	Initialize state array. More...

static void	Transform (word64 digest, const word64 data)
	Operate the hash. More...

Static Public Member Functions inherited from AlgorithmImpl< IteratedHash< word64, LittleEndian, T_BlockSize >, Tiger >
static std::string	StaticAlgorithmName ()
	The algorithm name. More...

Additional Inherited Members
Public Types inherited from IteratedHash< word64, LittleEndian, T_BlockSize >
typedef LittleEndian	ByteOrderClass

typedef word64	HashWordType

Public Types inherited from IteratedHashBase< word64, HashTransformation >
typedef word64	HashWordType

Static Public Attributes inherited from IteratedHashWithStaticTransform< word64, LittleEndian, 64, 24, Tiger >
static const int	DIGESTSIZE

Static Public Attributes inherited from IteratedHash< word64, LittleEndian, T_BlockSize >
static const int	BLOCKSIZE

Detailed Description

Tiger message digest.

Crypto++ provides the original Tiger hash that was submitted to the NESSIE project. The implementation is different from the revised Tiger2 hash.

See also: Tiger and Tiger: A Fast New Cryptographic Hash Function

Since: Crypto++ 2.1

Definition at line 35 of file tiger.h.

Member Function Documentation

◆ AlgorithmProvider()

std::string Tiger::AlgorithmProvider ( ) const

virtual

Retrieve the provider of this algorithm.

Returns: the algorithm provider

The algorithm provider can be a name like "C++", "SSE", "NEON", "AESNI", "ARMv8" and "Power8". C++ is standard C++ code. Other labels, like SSE, usually indicate a specialized implementation using instructions from a higher instruction set architecture (ISA). Future labels may include external hardware like a hardware security module (HSM).

Generally speaking Wei Dai's original IA-32 ASM code falls under "SSE2". Labels like "SSSE3" and "SSE4.1" follow after Wei's code and use intrinsics instead of ASM.

Algorithms which combine different instructions or ISAs provide the dominant one. For example on x86 AES/GCM returns "AESNI" rather than "CLMUL" or "AES+SSE4.1" or "AES+CLMUL" or "AES+SSE4.1+CLMUL".

Note: Provider is not universally implemented yet.

Since: Crypto++ 8.0

Reimplemented from Algorithm.

Definition at line 19 of file tiger.cpp.

◆ InitState()

void Tiger::InitState ( HashWordType * state )

static

Initialize state array.

Parameters

state the state of the hash

Definition at line 30 of file tiger.cpp.

◆ Transform()

void Tiger::Transform	(	word64 *	digest,
		const word64 *	data
	)

static

Operate the hash.

Parameters

digest	the state of the hash
data	the data to be digested

Definition at line 54 of file tiger.cpp.

◆ TruncatedFinal()

void Tiger::TruncatedFinal	(	byte *	digest,
		size_t	digestSize
	)

virtual

Computes the hash of the current message.

Parameters

digest	a pointer to the buffer to receive the hash
digestSize	the size of the truncated digest, in bytes

TruncatedFinal() calls Final() and then copies digestSize bytes to digest. The hash is restarted the hash for the next message.

Implements HashTransformation.

Definition at line 37 of file tiger.cpp.

The documentation for this class was generated from the following files:

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ AlgorithmProvider()

◆ InitState()

◆ Transform()

◆ TruncatedFinal()