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crypto/weakcrypto/source/hash/md4.cpp
branchRCL_3
changeset 62 a71299154b21
parent 61 641f389e9157
child 63 94225563cd41 
--- a/crypto/weakcrypto/source/hash/md4.cpp	Tue Aug 31 17:00:08 2010 +0300
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,495 +0,0 @@
-/*
-* Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
-* All rights reserved.
-* This component and the accompanying materials are made available
-* under the terms of the License "Eclipse Public License v1.0"
-* which accompanies this distribution, and is available
-* at the URL "http://www.eclipse.org/legal/epl-v10.html".
-*
-* Initial Contributors:
-* Nokia Corporation - initial contribution.
-*
-* Contributors:
-*
-* Description: 
-*
-*/
-
-
-/**
- @file
-*/
-
-#include <e32std.h>
-#include <hash.h>
-#include "hashinc.h"
-#define EXPANDLOOP
-
-
-CMD4::CMD4(void)
-: CMessageDigest(),iHash(MD4_HASH)
-	{
-	}
-
-CMD4::CMD4(const CMD4& aMD)
-: CMessageDigest(aMD),
-  iHash(aMD.iHash),iA(aMD.iA),iB(aMD.iB),iC(aMD.iC),iD(aMD.iD),
-  iNl(aMD.iNl),iNh(aMD.iNh)
-	{
-	(void)Mem::Copy(iData,aMD.iData,sizeof(iData));
-	}
-	
-EXPORT_C CMD4* CMD4::NewL(void)
-	{
-	CMD4* self = new (ELeave) CMD4();
-	self->Reset();
-	return (self);
-	}
-	
-EXPORT_C CMessageDigest* CMD4::ReplicateL(void)
-	{
-	 return CMD4::NewL();
-	}
-	
-EXPORT_C CMD4::~CMD4(void)
-	{
-	}
-
-EXPORT_C TPtrC8 CMD4::Hash(const TDesC8& aMessage)
-	{
-	//Adds the aMessage to the internal representation of data to be hashed i.e iData
-	DoUpdate(aMessage.Ptr(),aMessage.Size());
-	StoreState();
-	//Does the padding and does the block operation on the final 512 bit block.
-	DoFinal();
-	RestoreState();
-	return iHash;
-	}
-
-EXPORT_C CMessageDigest* CMD4::CopyL(void)
-	{
-	return new(ELeave) CMD4(*this);
-	}
-	
-EXPORT_C TInt CMD4::BlockSize(void)
-	{
-	return sizeof(iData);
-	}
-	
-EXPORT_C TInt CMD4::HashSize(void)
-	{
-	return MD4_HASH;
-	}
-	
-EXPORT_C void CMD4::Reset(void)
-	{
-	iA=0x67452301;
-	iB=0xefcdab89;
-	iC=0x98badcfe;
-	iD=0x10325476;
-	iNh=0;
-	iNl=0;
-	}
-
-EXPORT_C void CMD4::Update(const TDesC8& aMessage)
-	{
-	DoUpdate(aMessage.Ptr(),aMessage.Size());
-	}
-	
-EXPORT_C TPtrC8 CMD4::Final(const TDesC8& aMessage)
-	{
-	//Adds the aMessage to the internal representation of data to be hashed i.e iData
-	DoUpdate(aMessage.Ptr(),aMessage.Size());
-	//Does the padding and does the block operation on the final 512 bit block.
-	DoFinal();
-	//Resets the values of iA, iB, iC and iD, iNh, iNl
-	Reset();
-	return iHash;
-	}
-
-EXPORT_C TPtrC8 CMD4::Final()
-	{
-	//Does the padding and does the block operation on the final 512 bit block.
-	DoFinal();
-	//Resets the values of iA, iB, iC and iD, iNh, iNl
-	Reset();
-	return iHash;
-	}
-
-void CMD4::DoUpdate(const TUint8* aData,TUint aLength)
-	{
-	const TUint8* pend=aData+aLength;	
-	for (const TUint8* paData=aData;paData<pend;paData++) 
-		{
-		const TUint8 byte=*paData;
-		switch (iNl&3) 
-			{
-			case 0:
-				iData[iNl>>2]=byte;
-				break;
-			case 1:
-				iData[iNl>>2]|=byte<<8;
-				break;
-			case 2:
-				iData[iNl>>2]|=byte<<16;
-				break;
-			case 3:
-				iData[iNl>>2]|=byte<<24;
-				break;
-			default:
-				break;
-			};
-		if(++iNl==64) 
-			{
-			Block();
-			iNh+=64;
-			iNl=0;
-			}
-		}
-	}
-
-static inline TUint CMD4_F(TUint x,TUint y,TUint z)
-	{
-	return ((x)&(y)) | ((~x)&(z));
-	}
-	
-static inline TUint CMD4_G(TUint x,TUint y,TUint z)
-	{
-	return ((x)&(y)) | ((x)&(z)) | ((y)&(z));
-	}
-	
-static inline TUint CMD4_H(TUint x,TUint y,TUint z)
-	{
-	return (x)^(y)^(z);
-	}
-
-	
-#ifdef NOREFS
-static inline TUint CMD4_FF(TUint a,const TUint b,const TUint c,const TUint d,const TUint x,const TUint s)
-	{
-	a+=CMD4_F(b,c,d) + x; 
-	a=CMD_R(a,s);
-	return a;
-	}
-	
-static inline TUint CMD4_GG(TUint a,const TUint b,const TUint c,const TUint d,const TUint x,const TUint s)
-	{
-	a+=CMD4_G(b,c,d) + x + (TUint32)0x5a827999; 
-	a=CMD_R(a,s);
-	return a;
-	}
-	
-static inline TUint CMD4_HH(TUint a,const TUint b,const TUint c,const TUint d,const TUint x,const TUint s)
-	{
-	a+=CMD4_H(b,c,d) + x + (TUint32)0x6ed9eba1; 
-	a=CMD_R(a,s);
-	return a;
-	}
-	
-void CMD4::Block()
-	{
-	register TUint tempA=iA;
-	register TUint tempB=iB;
-	register TUint tempC=iC;
-	register TUint tempD=iD;
-
-	tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[ 0],3);
-	tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[ 1],7);
-	tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[ 2],11);
-	tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[ 3],19);
-	tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[ 4],3);
-	tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[ 5],7);
-	tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[ 6],11);
-	tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[ 7],19);
-	tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[ 8],3);
-	tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[ 9],7);
-	tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[10],11);
-	tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[11],19);
-	tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[12],3);
-	tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[13],7);
-	tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[14],11);
-	tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[15],19);
-
-	tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 0],3);
-	tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 4],5);
-	tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[ 8],9);
-	tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[12],13);
-	tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 1],3);
-	tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 5],5);
-	tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[ 9],9);
-	tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[13],13);
-	tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 2],3);
-	tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 6],5);
-	tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[10],9);
-	tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[14],13);
-	tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 3],3);
-	tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 7],5);
-	tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[11],9);
-	tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[15],13);
-
-	tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 0],3);
-	tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[ 8],9);
-	tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 4],11);
-	tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[12],15);
-	tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 2],3);
-	tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[10],9);
-	tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 6],11);
-	tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[14],15);
-	tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 1],3);
-	tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[ 9],9);
-	tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 5],11);
-	tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[13],15);
-	tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 3],3);
-	tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[11],9);
-	tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 7],11);
-	tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[15],15);
-
-	iA+=tempA;
-	iB+=tempB;
-	iC+=tempC;
-	iD+=tempD;
-	}
-
-#else
-#ifdef MACRO
-#define CMD4_FF(a, b, c, d, x, s) (CMD_R(a += CMD4_F(b,c,d) + x, s))
-#define CMD4_GG(a, b, c, d, x, s) (CMD_R(a += CMD4_G(b,c,d) + x + (TUint32)0x5a827999, s))
-#define CMD4_HH(a, b, c, d, x, s) (CMD_R(a += CMD4_H(b,c,d) + x + (TUint32)0x6ed9eba1, s))
-void CMD4::Block()
-	{
-	register TUint tempA=iA;
-	register TUint tempB=iB;
-	register TUint tempC=iC;
-	register TUint tempD=iD;
-	
-	tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[ 0],3);
-	tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[ 1],7);
-	tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[ 2],11);
-	tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[ 3],19);
-	tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[ 4],3);
-	tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[ 5],7);
-	tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[ 6],11);
-	tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[ 7],19);
-	tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[ 8],3);
-	tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[ 9],7);
-	tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[10],11);
-	tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[11],19);
-	tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[12],3);
-	tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[13],7);
-	tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[14],11);
-	tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[15],19);
-
-	tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 0],3);
-	tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 4],5);
-	tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[ 8],9);
-	tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[12],13);
-	tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 1],3);
-	tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 5],5);
-	tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[ 9],9);
-	tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[13],13);
-	tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 2],3);
-	tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 6],5);
-	tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[10],9);
-	tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[14],13);
-	tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 3],3);
-	tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 7],5);
-	tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[11],9);
-	tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[15],13);
-
-	tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 0],3);
-	tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[ 8],9);
-	tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 4],11);
-	tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[12],15);
-	tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 2],3);
-	tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[10],9);
-	tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 6],11);
-	tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[14],15);
-	tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 1],3);
-	tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[ 9],9);
-	tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 5],11);
-	tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[13],15);
-	tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 3],3);
-	tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[11],9);
-	tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 7],11);
-	tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[15],15);
-
-	iA+=tempA;
-	iB+=tempB;
-	iC+=tempC;
-	iD+=tempD;
-	}
-	
-#else
-static inline void CMD4_FF(TUint& a,const TUint b,const TUint c,const TUint d,const TUint x,const TUint s)
-	{
-	a+=CMD4_F(b,c,d) + x; 
-	a=CMD_R(a,s);
-	}
-	
-static inline void CMD4_GG(TUint& a,const TUint b,const TUint c,const TUint d,const TUint x,const TUint s)
-	{
-	a+=CMD4_G(b,c,d) + x + (TUint32)0x5a827999; 
-	a=CMD_R(a,s);
-	}
-	
-static inline void CMD4_HH(TUint& a,const TUint b,const TUint c,const TUint d,const TUint x,const TUint s)
-	{
-	a+=CMD4_H(b,c,d) + x + (TUint32)0x6ed9eba1; 
-	a=CMD_R(a,s);
-	}
-
-void CMD4::Block()
-	{
-	register TUint tempA=iA;
-	register TUint tempB=iB;
-	register TUint tempC=iC;
-	register TUint tempD=iD;
-
-	CMD4_FF(tempA,tempB,tempC,tempD,iData[ 0],3);
-	CMD4_FF(tempD,tempA,tempB,tempC,iData[ 1],7);
-	CMD4_FF(tempC,tempD,tempA,tempB,iData[ 2],11);
-	CMD4_FF(tempB,tempC,tempD,tempA,iData[ 3],19);
-	CMD4_FF(tempA,tempB,tempC,tempD,iData[ 4],3);
-	CMD4_FF(tempD,tempA,tempB,tempC,iData[ 5],7);
-	CMD4_FF(tempC,tempD,tempA,tempB,iData[ 6],11);
-	CMD4_FF(tempB,tempC,tempD,tempA,iData[ 7],19);
-	CMD4_FF(tempA,tempB,tempC,tempD,iData[ 8],3);
-	CMD4_FF(tempD,tempA,tempB,tempC,iData[ 9],7);
-	CMD4_FF(tempC,tempD,tempA,tempB,iData[10],11);
-	CMD4_FF(tempB,tempC,tempD,tempA,iData[11],19);
-	CMD4_FF(tempA,tempB,tempC,tempD,iData[12],3);
-	CMD4_FF(tempD,tempA,tempB,tempC,iData[13],7);
-	CMD4_FF(tempC,tempD,tempA,tempB,iData[14],11);
-	CMD4_FF(tempB,tempC,tempD,tempA,iData[15],19);
-
-	CMD4_GG(tempA,tempB,tempC,tempD,iData[ 0],3);
-	CMD4_GG(tempD,tempA,tempB,tempC,iData[ 4],5);
-	CMD4_GG(tempC,tempD,tempA,tempB,iData[ 8],9);
-	CMD4_GG(tempB,tempC,tempD,tempA,iData[12],13);
-	CMD4_GG(tempA,tempB,tempC,tempD,iData[ 1],3);
-	CMD4_GG(tempD,tempA,tempB,tempC,iData[ 5],5);
-	CMD4_GG(tempC,tempD,tempA,tempB,iData[ 9],9);
-	CMD4_GG(tempB,tempC,tempD,tempA,iData[13],13);
-	CMD4_GG(tempA,tempB,tempC,tempD,iData[ 2],3);
-	CMD4_GG(tempD,tempA,tempB,tempC,iData[ 6],5);
-	CMD4_GG(tempC,tempD,tempA,tempB,iData[10],9);
-	CMD4_GG(tempB,tempC,tempD,tempA,iData[14],13);
-	CMD4_GG(tempA,tempB,tempC,tempD,iData[ 3],3);
-	CMD4_GG(tempD,tempA,tempB,tempC,iData[ 7],5);
-	CMD4_GG(tempC,tempD,tempA,tempB,iData[11],9);
-	CMD4_GG(tempB,tempC,tempD,tempA,iData[15],13);
-
-	CMD4_HH(tempA,tempB,tempC,tempD,iData[ 0],3);
-	CMD4_HH(tempD,tempA,tempB,tempC,iData[ 8],9);
-	CMD4_HH(tempC,tempD,tempA,tempB,iData[ 4],11);
-	CMD4_HH(tempB,tempC,tempD,tempA,iData[12],15);
-	CMD4_HH(tempA,tempB,tempC,tempD,iData[ 2],3);
-	CMD4_HH(tempD,tempA,tempB,tempC,iData[10],9);
-	CMD4_HH(tempC,tempD,tempA,tempB,iData[ 6],11);
-	CMD4_HH(tempB,tempC,tempD,tempA,iData[14],15);
-	CMD4_HH(tempA,tempB,tempC,tempD,iData[ 1],3);
-	CMD4_HH(tempD,tempA,tempB,tempC,iData[ 9],9);
-	CMD4_HH(tempC,tempD,tempA,tempB,iData[ 5],11);
-	CMD4_HH(tempB,tempC,tempD,tempA,iData[13],15);
-	CMD4_HH(tempA,tempB,tempC,tempD,iData[ 3],3);
-	CMD4_HH(tempD,tempA,tempB,tempC,iData[11],9);
-	CMD4_HH(tempC,tempD,tempA,tempB,iData[ 7],11);
-	CMD4_HH(tempB,tempC,tempD,tempA,iData[15],15);
-	
-	iA+=tempA;
-	iB+=tempB;
-	iC+=tempC;
-	iD+=tempD;
-	}
-#endif
-#endif
-
-void CMD4::DoFinal(void)
-	{
-	iNh += iNl;
-	const TUint ul128=128;
-	switch (iNl&3) 
-		{
-		case 0:
-			iData[iNl>>2] = ul128;
-			break;
-		case 1:
-			iData[iNl>>2] += ul128<<8;
-			break;
-		case 2:
-			iData[iNl>>2] += ul128<<16;
-			break;
-		case 3:
-			iData[iNl>>2] += ul128<<24;
-			break;
-		default:
-			break;
-		};
-	if (iNl>=56) 
-		{
-		if (iNl<60)
-			iData[15]=0;		
-		Block();
-		Mem::FillZ(iData,14*sizeof(TUint));
-		} 
-	else
-		{
-		const TUint offset=(iNl+4)>>2;
-		Mem::FillZ(iData+offset,(14-offset)*sizeof(TUint));
-		}
-	
-	iData[14]=iNh<<3;//number in bits
-	// this will fail if the total input length is longer than 2^32 in bits
-	//(2^31 in bytes) which is roughly half a gig.
-	iData[15]=0;
-
-	Block();
-	//
-	// Generate hash value into iHash
-	//
-	TUint tmp=iA;
-	iHash[0]=(TUint8)(tmp & 255);
-	iHash[1]=(TUint8)((tmp >>= 8) & 255);
-	iHash[2]=(TUint8)((tmp >>= 8) & 255);
-	iHash[3]=(TUint8)((tmp >>= 8) & 255);
-
-	tmp=iB;
-	iHash[4]=(TUint8)(tmp & 255);
-	iHash[5]=(TUint8)((tmp >>= 8) & 255);
-	iHash[6]=(TUint8)((tmp >>= 8) & 255);
-	iHash[7]=(TUint8)((tmp >>= 8) & 255);
-
-	tmp=iC;
-	iHash[8]=(TUint8)(tmp & 255);
-	iHash[9]=(TUint8)((tmp >>= 8) & 255);
-	iHash[10]=(TUint8)((tmp >>= 8) & 255);
-	iHash[11]=(TUint8)((tmp >>= 8) & 255);
-
-	tmp=iD;
-	iHash[12]=(TUint8)(tmp & 255);
-	iHash[13]=(TUint8)((tmp >>= 8) & 255);
-	iHash[14]=(TUint8)((tmp >>= 8) & 255);
-	iHash[15]=(TUint8)((tmp >>= 8) & 255);
-	}
-
-void CMD4::RestoreState()
-{
-	iA = iACopy;
-	iB = iBCopy;
-	iC = iCCopy;
-	iD = iDCopy;
-	iNl = iNlCopy;
-	iNh = iNhCopy;	
-	Mem::Copy(&iData[0], &iDataCopy[0], MD4_LBLOCK*sizeof(TUint)); 
-}
-
-void CMD4::StoreState()
-{
-	iACopy = iA;
-	iBCopy = iB;
-	iCCopy = iC;
-	iDCopy = iD;
-	iNlCopy = iNl;
-	iNhCopy = iNh;	
-	Mem::Copy(&iDataCopy[0], &iData[0], MD4_LBLOCK*sizeof(TUint));
-}
MCL/sf/os/security