TwoFish Class Reference

#include <twofish.h>

Collaboration diagram for TwoFish:

List of all members.

Public Member Functions
	TwoFish ()
	~TwoFish ()
void	Decrypt (unsigned char *in, unsigned char *out, int len)
void	Init (unsigned char *gseed)
Public Attributes
unsigned char	subData3 [256]
Protected Member Functions
void	BlockEncrypt (CipherInstance *cipher, KeyInstance *key, unsigned char *input, int inputLen, unsigned char *outBuffer)
void	CipherInit (CipherInstance *cipher, unsigned char mode, char *IV)
unsigned int	F32 (unsigned int x, unsigned int *k32, int keyLen)
void	MakeKey (KeyInstance *key, unsigned char direction, int keyLen, char *keyMaterial)
void	ReKey (KeyInstance *key)
unsigned int	RS_MDS_Encode (unsigned int k0, unsigned int k1)
Protected Attributes
CipherInstance	ci
unsigned int	dwIndex
KeyInstance	ki
int	numRounds [4]
int	pos
unsigned int	seed
int	tabEnable
unsigned char	tabUsed [256]

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Detailed Description

Definition at line 34 of file twofish.h.

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Constructor & Destructor Documentation

TwoFish::TwoFish

(

)

Definition at line 81 of file twofish.cpp.

TwoFish::~TwoFish

(

)

Definition at line 84 of file twofish.cpp.

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Member Function Documentation

void TwoFish::BlockEncrypt	(	CipherInstance *	cipher,
		KeyInstance *	key,
		unsigned char *	input,
		int	inputLen,
		unsigned char *	outBuffer
	)		[protected]

Definition at line 237 of file twofish.cpp.

References Bswap, F32(), tagcipherInstance::IV, tagcipherInstance::iv32, tagkeyInstance::keyLen, tagcipherInstance::mode, tagkeyInstance::numRounds, ROL, ROR, tagkeyInstance::sboxKeys, tagkeyInstance::subKeys, and x.

Referenced by Decrypt(), and Init().

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void TwoFish::CipherInit	(	CipherInstance *	cipher,
		unsigned char	mode,
		char *	IV
	)		[protected]

Definition at line 210 of file twofish.cpp.

References Bswap, tagcipherInstance::cipherSig, tagcipherInstance::IV, tagcipherInstance::iv32, and tagcipherInstance::mode.

Referenced by Init().

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void TwoFish::Decrypt	(	unsigned char *	in,
		unsigned char *	out,
		int	len
	)

Definition at line 121 of file twofish.cpp.

References BlockEncrypt(), ci, ki, pos, and subData3.

Referenced by CCryptBlowfishTwofish::Decrypt(), and CCryptTwofish::Decrypt().

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unsigned int TwoFish::F32	(	unsigned int	x,
		unsigned int *	k32,
		int	keyLen
	)		[protected]

Definition at line 154 of file twofish.cpp.

References _b, Bswap, M00, M01, M02, M03, M10, M11, M12, M13, M20, M21, M22, M23, M30, M31, M32, M33, and p8.

Referenced by BlockEncrypt(), and ReKey().

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void TwoFish::Init

(

unsigned char *

gseed

)

Definition at line 90 of file twofish.cpp.

References BlockEncrypt(), ci, CipherInit(), dwIndex, tagkeyInstance::key32, ki, MakeKey(), numRounds, pos, ReKey(), seed, subData3, and tabEnable.

Referenced by CCryptBlowfishTwofish::Init(), and CCryptTwofish::Init().

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void TwoFish::MakeKey	(	KeyInstance *	key,
		unsigned char	direction,
		int	keyLen,
		char *	keyMaterial
	)		[protected]

Definition at line 223 of file twofish.cpp.

References tagkeyInstance::direction, tagkeyInstance::key32, tagkeyInstance::keyLen, tagkeyInstance::keyMaterial, tagkeyInstance::keySig, tagkeyInstance::numRounds, and numRounds.

Referenced by Init().

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void TwoFish::ReKey

(

KeyInstance *

key

)

[protected]

Definition at line 184 of file twofish.cpp.

References F32(), tagkeyInstance::key32, tagkeyInstance::keyLen, tagkeyInstance::numRounds, ROL, RS_MDS_Encode(), tagkeyInstance::sboxKeys, and tagkeyInstance::subKeys.

Referenced by Init().

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unsigned int TwoFish::RS_MDS_Encode	(	unsigned int	k0,
		unsigned int	k1
	)		[protected]

Definition at line 140 of file twofish.cpp.

References RS_rem.

Referenced by ReKey().

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Member Data Documentation

CipherInstance TwoFish::ci [protected]

Definition at line 61 of file twofish.h.

Referenced by Decrypt(), and Init().

unsigned int TwoFish::dwIndex [protected]

Definition at line 64 of file twofish.h.

Referenced by Init().

KeyInstance TwoFish::ki [protected]

Definition at line 60 of file twofish.h.

Referenced by Decrypt(), and Init().

int TwoFish::numRounds[4] [protected]

Definition at line 67 of file twofish.h.

Referenced by Init(), and MakeKey().

int TwoFish::pos [protected]

Definition at line 66 of file twofish.h.

Referenced by Decrypt(), and Init().

unsigned int TwoFish::seed [protected]

Definition at line 63 of file twofish.h.

Referenced by Init().

unsigned char TwoFish::subData3[256]

Definition at line 49 of file twofish.h.

Referenced by Decrypt(), Init(), and CCryptTwofish::Init().

int TwoFish::tabEnable [protected]

Definition at line 65 of file twofish.h.

Referenced by Init().

unsigned char TwoFish::tabUsed[256] [protected]

Definition at line 62 of file twofish.h.

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

• pol/crypt/twofish.h
• pol/crypt/twofish.cpp