md4.cpp File Reference

An implementation of MD4 designed for use in the samba SMB authentication protocol. More...

#include "../shared/shared.h"
#include "md4.h"

Include dependency graph for md4.cpp:

Go to the source code of this file.

Macros
#define	F(X, Y, Z)
#define	G(X, Y, Z)
#define	H(X, Y, Z)
#define	lshift(x, s)
#define	ROUND1(a, b, c, d, k, s)
#define	ROUND2(a, b, c, d, k, s)
#define	ROUND3(a, b, c, d, k, s)

Functions
static void	mdfour64 (uint32_t *M)
static void	copy64 (uint32_t *M, const unsigned char *in)
static void	copy4 (unsigned char *out, uint32_t x)
static void	mdfour_begin (struct mdfour *md)
static void	mdfour_tail (const unsigned char *in, int n)
static void	mdfour_update (struct mdfour *md, const unsigned char *in, int n)
static void	mdfour_result (struct mdfour *md, unsigned char *out)
static void	mdfour (unsigned char *out, const unsigned char *in, int n)
unsigned	Com_BlockChecksum (const void *buffer, int length)

Variables
static struct mdfour *	m

Detailed Description

An implementation of MD4 designed for use in the samba SMB authentication protocol.

Note

This code makes no attempt to be fast!

It assumes that a int is at least 32 bits long

Definition in file md4.cpp.

Macro Definition Documentation

F

#define F	(		X,
			Y,
			Z )

Value:

(((X)&(Y)) | ((~(X))&(Z)))

Definition at line 37 of file md4.cpp.

Referenced by Com_SHA2Process().

G

#define G	(		X,
			Y,
			Z )

Value:

(((X)&(Y)) | ((X)&(Z)) | ((Y)&(Z)))

Definition at line 38 of file md4.cpp.

Referenced by Com_SHA2Process().

H

#define H	(		X,
			Y,
			Z )

Value:

((X)^(Y)^(Z))

Definition at line 39 of file md4.cpp.

Referenced by Com_SHA2Process().

lshift

#define lshift	(		x,
			s )

Value:

(((x)<<(s)) | ((x)>>(32-(s))))

Definition at line 43 of file md4.cpp.

ROUND1

#define ROUND1	(		a,
			b,
			c,
			d,
			k,
			s )

Value:

a = lshift(a + F(b,c,d) + X[k], s)

Definition at line 46 of file md4.cpp.

Referenced by mdfour64().

ROUND2

#define ROUND2	(		a,
			b,
			c,
			d,
			k,
			s )

Value:

a = lshift(a + G(b,c,d) + X[k] + 0x5A827999,s)

Definition at line 47 of file md4.cpp.

Referenced by mdfour64().

ROUND3

#define ROUND3	(		a,
			b,
			c,
			d,
			k,
			s )

Value:

a = lshift(a + H(b,c,d) + X[k] + 0x6ED9EBA1,s)

Definition at line 48 of file md4.cpp.

Referenced by mdfour64().

Function Documentation

Com_BlockChecksum()

unsigned Com_BlockChecksum	(	const void *	buffer,
		int	length )

MD4-based checksum utility functions Copyright (C) 2000 Jeff Teunissen d2dee.nosp@m.k@pm.nosp@m.ail.n.nosp@m.et Author: Jeff Teunissen d2dee.nosp@m.k@pm.nosp@m.ail.n.nosp@m.et Date: 01 Jan 2000

Definition at line 202 of file md4.cpp.

References length, and mdfour().

Referenced by CM_AddMapTile(), and Com_GetScriptChecksum().

copy4()

void copy4 ( unsigned char * out, uint32_t x )

static

Definition at line 107 of file md4.cpp.

Referenced by mdfour_result(), and mdfour_tail().

copy64()

void copy64 ( uint32_t * M, const unsigned char * in )

static

Definition at line 101 of file md4.cpp.

References i, and M.

Referenced by mdfour_tail(), and mdfour_update().

mdfour()

void mdfour ( unsigned char * out, const unsigned char * in, int n )

static

Definition at line 187 of file md4.cpp.

References mdfour_begin(), mdfour_result(), and mdfour_update().

Referenced by Com_BlockChecksum().

mdfour64()

void mdfour64 ( uint32_t * M )

static

Definition at line 51 of file md4.cpp.

References mdfour::A, mdfour::B, mdfour::C, mdfour::D, M, m, ROUND1, ROUND2, and ROUND3.

Referenced by mdfour_tail(), and mdfour_update().

mdfour_begin()

void mdfour_begin ( struct mdfour * md )

static

Definition at line 115 of file md4.cpp.

References mdfour::A, mdfour::B, mdfour::C, mdfour::D, and mdfour::totalN.

Referenced by mdfour().

mdfour_result()

void mdfour_result ( struct mdfour * md, unsigned char * out )

static

Definition at line 176 of file md4.cpp.

References copy4(), and m.

Referenced by mdfour().

mdfour_tail()

void mdfour_tail ( const unsigned char * in, int n )

static

Definition at line 125 of file md4.cpp.

References copy4(), copy64(), M, m, mdfour64(), and OBJZERO.

Referenced by mdfour_update().

mdfour_update()

void mdfour_update ( struct mdfour * md, const unsigned char * in, int n )

static

start of edit by Forest 'LordHavoc' Hale commented out to prevent crashing when length is 0 if (n == 0) mdfour_tail(in, n); end of edit by Forest 'LordHavoc' Hale

Definition at line 152 of file md4.cpp.

References copy64(), M, m, mdfour64(), and mdfour_tail().

Referenced by mdfour().

Variable Documentation

m

struct mdfour* m

static

Definition at line 35 of file md4.cpp.

Referenced by CalculateMinsMaxs(), Check_FindCompositeSides(), CheckNodraws(), CheckPropagateParserContentFlags(), CL_EventAddMail(), CL_PrecacheCharacterModels(), Com_AddObjectLinks(), G_ReadItem(), GAME_InitializeBattlescape(), GLPositionTransform(), GLVectorTransform(), Grid_RecalcRouting(), Irc_Proto_Enqueue(), Matrix4x4_FromBonePose6s(), Matrix4x4_FromDoom3Joint(), Matrix4x4_FromOriginQuat(), Matrix4x4_ToBonePose6s(), Matrix4x4_ToOrigin3Quat4Float(), MatrixTranspose(), mdfour64(), mdfour_result(), mdfour_tail(), mdfour_update(), ParseBrush(), R_CreateSurfaceFlare(), R_Draw3DGlobe(), R_DrawFlareSurfaces(), R_DrawMaterialSurfaces(), R_ImageClearMaterials(), R_LoadMaterials(), R_Trace(), R_UpdateMaterial(), AABB::rotateAround(), RotatePointAroundVector(), StringToFilter(), SV_AddMissingTiles(), SV_FilterPacket(), SV_FitTile(), SV_TileMaskToString(), TEST_F(), UI_CloseWindowByRef(), UI_GeoscapeNodeZoomIn(), UI_GeoscapeNodeZoomOut(), UI_GetUIModel(), UI_ListUIModels_f(), UI_MaterialEditorNewStage_f(), UP_GetUnreadMails(), UP_MailClientClick_f(), UP_OpenMail_f(), UP_SetAllMailsRead_f(), and VectorRotate().