HAVAL Class Reference

#include <haval.h>

Inheritance diagram for HAVAL:

List of all members.

Detailed Description

HAVAL

Definition at line 9 of file haval.h.

Public Types

enum { DIGESTSIZE = 32, HAVAL_VERSION = 1 }

typedef LittleEndian ByteOrderClass

typedef IteratedHashBase<
word32, HashTransformation
>::HashWordType HashWordType

Public Member Functions

HAVAL (unsigned int digestSize=DIGESTSIZE, unsigned int passes=3)

digestSize can be 16, 20, 24, 28, or 32 (Default=32)
pass can be 3, 4 or 5 (Default=3)

void TruncatedFinal (byte *hash, unsigned int size)

truncated version of Final()

unsigned int DigestSize () const

size of the hash returned by Final()

std::string AlgorithmName () const

returns name of this algorithm, not universally implemented yet

unsigned int BlockSize () const

block size of underlying compression function, or 0 if not block based

unsigned int OptimalBlockSize () const

input to Update() should have length a multiple of this for optimal speed

unsigned int OptimalDataAlignment () const

returns how input should be aligned for optimal performance

void Update (const byte *input, unsigned int length)

process more input

byte * CreateUpdateSpace (unsigned int &size)

request space to write input into

void Restart ()

discard the current state, and restart with a new message

virtual void Final (byte *digest)

compute hash for current message, then restart for a new message

virtual void CalculateDigest (byte *digest, const byte *input, unsigned int length)

use this if your input is in one piece and you don't want to call Update() and Final() separately

virtual bool Verify (const byte *digest)

verify that digest is a valid digest for the current message, then reinitialize the object

virtual bool VerifyDigest (const byte *digest, const byte *input, unsigned int length)

use this if your input is in one piece and you don't want to call Update() and Verify() separately

virtual void CalculateTruncatedDigest (byte *digest, unsigned int digestSize, const byte *input, unsigned int length)

truncated version of CalculateDigest()

virtual bool TruncatedVerify (const byte *digest, unsigned int digestLength)

truncated version of Verify()

virtual bool VerifyTruncatedDigest (const byte *digest, unsigned int digestLength, const byte *input, unsigned int length)

truncated version of VerifyDigest()

virtual Clonable * Clone () const

this is not implemented by most classes yet

Static Public Member Functions

const char * StaticAlgorithmName ()

void CorrectEndianess (HashWordType *out, const HashWordType *in, unsigned int byteCount)

Static Public Attributes

CompileAssert<((BLOCKSIZE
&(BLOCKSIZE-1))==0) cryptopp_assert___LINE__ )

Protected Member Functions

void Init ()

void Tailor (unsigned int FPTLEN)

void HashEndianCorrectedBlock (const word32 *in)

void HashBlock (const HashWordType *input)

virtual void HashBlock (const word32 *input)=0

virtual void HashEndianCorrectedBlock (const HashWordType *data)=0

void SetBlockSize (unsigned int blockSize)

void SetStateSize (unsigned int stateSize)

word32 GetBitCountHi () const

word32 GetBitCountLo () const

virtual unsigned int HashMultipleBlocks (const word32 *input, unsigned int length)

void PadLastBlock (unsigned int lastBlockSize, byte padFirst=0x80)

void ThrowIfInvalidTruncatedSize (unsigned int size) const

Protected Attributes

const unsigned int digestSize

const unsigned int pass

SecBlock< word32 > m_data

SecBlock< word32 > m_digest

Static Protected Attributes

const unsigned int wi2 [32] = { 5,14,26,18,11,28, 7,16, 0,23,20,22, 1,10, 4, 8,30, 3,21, 9,17,24,29, 6,19,12,15,13, 2,25,31,27}

const unsigned int wi3 [32] = {19, 9, 4,20,28,17, 8,22,29,14,25,12,24,30,16,26,31,15, 7, 3, 1, 0,18,27,13, 6,21,10,23,11, 5, 2}

const unsigned int wi4 [32] = {24, 4, 0,14, 2, 7,28,23,26, 6,30,20,18,25,19, 3,22,11,31,21, 8,27,12, 9, 1,29, 5,15,17,10,16,13}

const unsigned int wi5 [32] = {27, 3,21,26,17,11,20,29,19, 0,12, 7,13, 8,31,10, 5, 9,14,30,18, 6,28,24, 2,23,16,22, 4, 1,25,15}

const word32 mc2 [32]

const word32 mc3 [32]

const word32 mc4 [32]

const word32 mc5 [32]

Member Function Documentation

virtual void HashTransformation::Final ( byte * digest ) [inline, virtual, inherited]

compute hash for current message, then restart for a new message

Precondition:
size of digest == DigestSize().
Definition at line 532 of file cryptlib.h.
Referenced by PKCS5_PBKDF2_HMAC< T >::DeriveKey(), HashFilter::Put2(), and HMAC_Base::TruncatedFinal().

virtual bool HashTransformation::Verify ( const byte * digest ) [inline, virtual, inherited]

verify that digest is a valid digest for the current message, then reinitialize the object
Default implementation is to call Final() and do a bitwise comparison between its output and digest. Definition at line 558 of file cryptlib.h.

Member Data Documentation

const word32 HAVAL::mc2 [static, protected]

Initial value:
{ 0x452821E6, 0x38D01377, 0xBE5466CF, 0x34E90C6C, 0xC0AC29B7, 0xC97C50DD, 0x3F84D5B5, 0xB5470917 , 0x9216D5D9, 0x8979FB1B, 0xD1310BA6, 0x98DFB5AC, 0x2FFD72DB, 0xD01ADFB7, 0xB8E1AFED, 0x6A267E96 , 0xBA7C9045, 0xF12C7F99, 0x24A19947, 0xB3916CF7, 0x0801F2E2, 0x858EFC16, 0x636920D8, 0x71574E69 , 0xA458FEA3, 0xF4933D7E, 0x0D95748F, 0x728EB658, 0x718BCD58, 0x82154AEE, 0x7B54A41D, 0xC25A59B5}
Definition at line 213 of file haval.cpp.

const word32 HAVAL::mc3 [static, protected]

Initial value:
{ 0x9C30D539,0x2AF26013,0xC5D1B023,0x286085F0,0xCA417918,0xB8DB38EF,0x8E79DCB0,0x603A180E, 0x6C9E0E8B,0xB01E8A3E,0xD71577C1,0xBD314B27,0x78AF2FDA,0x55605C60,0xE65525F3,0xAA55AB94, 0x57489862,0x63E81440,0x55CA396A,0x2AAB10B6,0xB4CC5C34,0x1141E8CE,0xA15486AF,0x7C72E993, 0xB3EE1411,0x636FBC2A,0x2BA9C55D,0x741831F6,0xCE5C3E16,0x9B87931E,0xAFD6BA33,0x6C24CF5C}
Definition at line 219 of file haval.cpp.

const word32 HAVAL::mc4 [static, protected]

Initial value:
{ 0x7A325381,0x28958677,0x3B8F4898,0x6B4BB9AF,0xC4BFE81B,0x66282193,0x61D809CC,0xFB21A991, 0x487CAC60,0x5DEC8032,0xEF845D5D,0xE98575B1,0xDC262302,0xEB651B88,0x23893E81,0xD396ACC5, 0x0F6D6FF3,0x83F44239,0x2E0B4482,0xA4842004,0x69C8F04A,0x9E1F9B5E,0x21C66842,0xF6E96C9A, 0x670C9C61,0xABD388F0,0x6A51A0D2,0xD8542F68,0x960FA728,0xAB5133A3,0x6EEF0B6C,0x137A3BE4}
Definition at line 225 of file haval.cpp.

const word32 HAVAL::mc5 [static, protected]

Initial value:
{ 0xBA3BF050,0x7EFB2A98,0xA1F1651D,0x39AF0176,0x66CA593E,0x82430E88,0x8CEE8619,0x456F9FB4, 0x7D84A5C3,0x3B8B5EBE,0xE06F75D8,0x85C12073,0x401A449F,0x56C16AA6,0x4ED3AA62,0x363F7706, 0x1BFEDF72,0x429B023D,0x37D0D724,0xD00A1248,0xDB0FEAD3,0x49F1C09B,0x075372C9,0x80991B7B, 0x25D479D8,0xF6E8DEF7,0xE3FE501A,0xB6794C3B,0x976CE0BD,0x04C006BA,0xC1A94FB6,0x409F60C4}
Definition at line 231 of file haval.cpp.

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

Generated on Wed Jul 21 19:15:53 2004 for Crypto++ by

1.3.7-20040704


Public Types
enum	{ DIGESTSIZE = 32, HAVAL_VERSION = 1 }
typedef LittleEndian	ByteOrderClass
typedef IteratedHashBase< word32, HashTransformation >::HashWordType	HashWordType
Public Member Functions
	HAVAL (unsigned int digestSize=DIGESTSIZE, unsigned int passes=3)
	digestSize can be 16, 20, 24, 28, or 32 (Default=32) pass can be 3, 4 or 5 (Default=3)
void	TruncatedFinal (byte *hash, unsigned int size)
	truncated version of Final()
unsigned int	DigestSize () const
	size of the hash returned by Final()
std::string	AlgorithmName () const
	returns name of this algorithm, not universally implemented yet
unsigned int	BlockSize () const
	block size of underlying compression function, or 0 if not block based
unsigned int	OptimalBlockSize () const
	input to Update() should have length a multiple of this for optimal speed
unsigned int	OptimalDataAlignment () const
	returns how input should be aligned for optimal performance
void	Update (const byte *input, unsigned int length)
	process more input
byte *	CreateUpdateSpace (unsigned int &size)
	request space to write input into
void	Restart ()
	discard the current state, and restart with a new message
virtual void	Final (byte *digest)
	compute hash for current message, then restart for a new message
virtual void	CalculateDigest (byte digest, const byte input, unsigned int length)
	use this if your input is in one piece and you don't want to call Update() and Final() separately
virtual bool	Verify (const byte *digest)
	verify that digest is a valid digest for the current message, then reinitialize the object
virtual bool	VerifyDigest (const byte digest, const byte input, unsigned int length)
	use this if your input is in one piece and you don't want to call Update() and Verify() separately
virtual void	CalculateTruncatedDigest (byte digest, unsigned int digestSize, const byte input, unsigned int length)
	truncated version of CalculateDigest()
virtual bool	TruncatedVerify (const byte *digest, unsigned int digestLength)
	truncated version of Verify()
virtual bool	VerifyTruncatedDigest (const byte digest, unsigned int digestLength, const byte input, unsigned int length)
	truncated version of VerifyDigest()
virtual Clonable *	Clone () const
	this is not implemented by most classes yet
Static Public Member Functions
const char *	StaticAlgorithmName ()
void	CorrectEndianess (HashWordType out, const HashWordType in, unsigned int byteCount)
Static Public Attributes
CompileAssert<((BLOCKSIZE &(BLOCKSIZE-1))==0)	cryptopp_assert___LINE__ )
Protected Member Functions
void	Init ()
void	Tailor (unsigned int FPTLEN)
void	HashEndianCorrectedBlock (const word32 *in)
void	HashBlock (const HashWordType *input)
virtual void	HashBlock (const word32 *input)=0
virtual void	HashEndianCorrectedBlock (const HashWordType *data)=0
void	SetBlockSize (unsigned int blockSize)
void	SetStateSize (unsigned int stateSize)
word32	GetBitCountHi () const
word32	GetBitCountLo () const
virtual unsigned int	HashMultipleBlocks (const word32 *input, unsigned int length)
void	PadLastBlock (unsigned int lastBlockSize, byte padFirst=0x80)
void	ThrowIfInvalidTruncatedSize (unsigned int size) const
Protected Attributes
const unsigned int	digestSize
const unsigned int	pass
SecBlock< word32 >	m_data
SecBlock< word32 >	m_digest
Static Protected Attributes
const unsigned int	wi2 [32] = { 5,14,26,18,11,28, 7,16, 0,23,20,22, 1,10, 4, 8,30, 3,21, 9,17,24,29, 6,19,12,15,13, 2,25,31,27}
const unsigned int	wi3 [32] = {19, 9, 4,20,28,17, 8,22,29,14,25,12,24,30,16,26,31,15, 7, 3, 1, 0,18,27,13, 6,21,10,23,11, 5, 2}
const unsigned int	wi4 [32] = {24, 4, 0,14, 2, 7,28,23,26, 6,30,20,18,25,19, 3,22,11,31,21, 8,27,12, 9, 1,29, 5,15,17,10,16,13}
const unsigned int	wi5 [32] = {27, 3,21,26,17,11,20,29,19, 0,12, 7,13, 8,31,10, 5, 9,14,30,18, 6,28,24, 2,23,16,22, 4, 1,25,15}
const word32	mc2 [32]
const word32	mc3 [32]
const word32	mc4 [32]
const word32	mc5 [32]