sl@0: /*
sl@0: * Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of the License "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: 
sl@0: * software md4 implementation
sl@0: * software md4 implementation
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: /**
sl@0:  @file
sl@0: */
sl@0: 
sl@0: #include "md4impl.h"
sl@0: #include <cryptospi/hashplugin.h>
sl@0: #include "pluginconfig.h"
sl@0: 
sl@0: 
sl@0: using namespace SoftwareCrypto;
sl@0: 
sl@0: 	
sl@0: CMD4Impl* CMD4Impl::NewL()
sl@0: 	{
sl@0: 	CMD4Impl* self=new (ELeave) CMD4Impl();
sl@0: 	self->Reset();
sl@0: 	return self;						
sl@0: 	}
sl@0: 														
sl@0: CMD4Impl* CMD4Impl::NewLC()
sl@0: 	{
sl@0: 	CMD4Impl* self=NewL();
sl@0: 	CleanupStack::PushL(self);
sl@0: 	return self;						
sl@0: 	}
sl@0: 														
sl@0: CMD4Impl::CMD4Impl() : iHash(KMD4HashSize)
sl@0: 	{		
sl@0: 	}
sl@0: 	
sl@0: CMD4Impl::CMD4Impl(const CMD4Impl& aCMD4Impl)
sl@0: : iHash(aCMD4Impl.iHash),iA(aCMD4Impl.iA),iB(aCMD4Impl.iB),iC(aCMD4Impl.iC),iD(aCMD4Impl.iD),
sl@0:   iNl(aCMD4Impl.iNl),iNh(aCMD4Impl.iNh)
sl@0: 	{
sl@0: 	(void)Mem::Copy(iData, aCMD4Impl.iData, sizeof(iData));
sl@0: 	}
sl@0: 	
sl@0: CMD4Impl::~CMD4Impl()
sl@0: 	{	
sl@0: 	}
sl@0: 	
sl@0: void CMD4Impl::Reset()
sl@0: 	{
sl@0: 	iA=0x67452301;
sl@0: 	iB=0xefcdab89;
sl@0: 	iC=0x98badcfe;
sl@0: 	iD=0x10325476;
sl@0: 	iNh=0;
sl@0: 	iNl=0;
sl@0: 	}
sl@0: 	
sl@0: void CMD4Impl::Close()
sl@0: 	{
sl@0: 	delete this;	
sl@0: 	}
sl@0: 	
sl@0: void CMD4Impl::GetCharacteristicsL(const TCharacteristics*& aPluginCharacteristics)
sl@0: 	{
sl@0: 	aPluginCharacteristics=NULL;
sl@0: 	TInt hashNum=sizeof(KHashCharacteristics)/sizeof(THashCharacteristics*);
sl@0: 	for (TInt i=0;i<hashNum;i++)
sl@0: 		{
sl@0: 		if (KHashCharacteristics[i]->cmn.iImplementationUID == ImplementationUid().iUid)
sl@0: 			{
sl@0: 			aPluginCharacteristics = KHashCharacteristics[i];
sl@0: 			break;
sl@0: 			}
sl@0: 		}	
sl@0: 	}
sl@0: 	
sl@0: CExtendedCharacteristics* CMD4Impl::CreateExtendedCharacteristicsL()
sl@0: 	{
sl@0: 	// All Symbian software plug-ins have unlimited concurrency, cannot be reserved
sl@0: 	// for exclusive use and are not CERTIFIED to be standards compliant.
sl@0: 	return CExtendedCharacteristics::NewL(KMaxTInt, EFalse);
sl@0: 	}
sl@0: const CExtendedCharacteristics* CMD4Impl::GetExtendedCharacteristicsL()
sl@0: 	{
sl@0: 	return CMD4Impl::CreateExtendedCharacteristicsL();
sl@0: 	}
sl@0: 
sl@0: TPtrC8 CMD4Impl::Hash(const TDesC8& aMessage)
sl@0: 	{
sl@0: 	DoUpdate(aMessage.Ptr(),aMessage.Size());
sl@0: 	StoreState();
sl@0: 	DoFinal();
sl@0: 	RestoreState();
sl@0: 	return iHash;
sl@0: 	}		
sl@0: 	
sl@0: void CMD4Impl::Update(const TDesC8& aMessage)
sl@0: 	{
sl@0: 	DoUpdate(aMessage.Ptr(),aMessage.Size());	
sl@0: 	}
sl@0: 	
sl@0: TPtrC8 CMD4Impl::Final(const TDesC8& aMessage)
sl@0: 	{
sl@0: 	if (aMessage!=KNullDesC8())
sl@0: 		{
sl@0: 		DoUpdate(aMessage.Ptr(),aMessage.Size());			
sl@0: 		}
sl@0: 	DoFinal();
sl@0: 	Reset();
sl@0: 	return iHash;
sl@0: 	}
sl@0: 	
sl@0: MHash* CMD4Impl::ReplicateL()
sl@0: 	{	 
sl@0: 	return CMD4Impl::NewL();
sl@0: 	}
sl@0: 	
sl@0: MHash* CMD4Impl::CopyL()
sl@0: 	{
sl@0: 	return new(ELeave) CMD4Impl(*this);	
sl@0: 	}
sl@0: 
sl@0: TUid CMD4Impl::ImplementationUid()
sl@0: 	{
sl@0: 	return KCryptoPluginMd4Uid;
sl@0: 	}
sl@0: 
sl@0: void CMD4Impl::DoUpdate(const TUint8* aData,TUint aLength)
sl@0: 	{
sl@0: 	const TUint8* pend=aData+aLength;	
sl@0: 	for (const TUint8* paData=aData;paData<pend;paData++) 
sl@0: 		{
sl@0: 		const TUint8 byte=*paData;
sl@0: 		switch (iNl&3) 
sl@0: 			{
sl@0: 			case 0:
sl@0: 				iData[iNl>>2]=byte;
sl@0: 				break;
sl@0: 			case 1:
sl@0: 				iData[iNl>>2]|=byte<<8;
sl@0: 				break;
sl@0: 			case 2:
sl@0: 				iData[iNl>>2]|=byte<<16;
sl@0: 				break;
sl@0: 			case 3:
sl@0: 				iData[iNl>>2]|=byte<<24;
sl@0: 				break;
sl@0: 			default:
sl@0: 				break;
sl@0: 			};
sl@0: 		if(++iNl==64) 
sl@0: 			{
sl@0: 			Block();
sl@0: 			iNh+=64;
sl@0: 			iNl=0;
sl@0: 			}
sl@0: 		}
sl@0: 	}
sl@0: 	
sl@0: static inline TUint CMD4_F(TUint x,TUint y,TUint z)
sl@0: 	{
sl@0: 	return (x&y) | (~x&z);
sl@0: 	}
sl@0: static inline TUint CMD4_G(TUint x,TUint y,TUint z)
sl@0: 	{
sl@0: 	return (x&y) | (x&z) | (y&z);
sl@0: 	}
sl@0: static inline TUint CMD4_H(TUint x,TUint y,TUint z)
sl@0: 	{
sl@0: 	return x^y^z;
sl@0: 	}
sl@0: 
sl@0: 	
sl@0: #ifdef NOREFS
sl@0: static inline TUint CMD4_FF(TUint a,const TUint b,const TUint c,const TUint d,const TUint x,const TUint s)
sl@0: 	{
sl@0: 	a+=CMD4_F(b,c,d) + x; 
sl@0: 	a=CMD_R(a,s);
sl@0: 	return a;
sl@0: 	}
sl@0: static inline TUint CMD4_GG(TUint a,const TUint b,const TUint c,const TUint d,const TUint x,const TUint s)
sl@0: 	{
sl@0: 	a+=CMD4_G(b,c,d) + x + (TUint32)0x5a827999; 
sl@0: 	a=CMD_R(a,s);
sl@0: 	return a;
sl@0: 	}
sl@0: static inline TUint CMD4_HH(TUint a,const TUint b,const TUint c,const TUint d,const TUint x,const TUint s)
sl@0: 	{
sl@0: 	a+=CMD4_H(b,c,d) + x + (TUint32)0x6ed9eba1; 
sl@0: 	a=CMD_R(a,s);
sl@0: 	return a;
sl@0: 	}
sl@0: 
sl@0: void CMD4Impl::Block()
sl@0: 	{
sl@0: 	register TUint tempA=iA;
sl@0: 	register TUint tempB=iB;
sl@0: 	register TUint tempC=iC;
sl@0: 	register TUint tempD=iD;
sl@0: 
sl@0: 	tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[ 0],3);
sl@0: 	tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[ 1],7);
sl@0: 	tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[ 2],11);
sl@0: 	tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[ 3],19);
sl@0: 	tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[ 4],3);
sl@0: 	tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[ 5],7);
sl@0: 	tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[ 6],11);
sl@0: 	tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[ 7],19);
sl@0: 	tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[ 8],3);
sl@0: 	tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[ 9],7);
sl@0: 	tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[10],11);
sl@0: 	tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[11],19);
sl@0: 	tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[12],3);
sl@0: 	tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[13],7);
sl@0: 	tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[14],11);
sl@0: 	tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[15],19);
sl@0: 
sl@0: 	tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 0],3);
sl@0: 	tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 4],5);
sl@0: 	tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[ 8],9);
sl@0: 	tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[12],13);
sl@0: 	tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 1],3);
sl@0: 	tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 5],5);
sl@0: 	tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[ 9],9);
sl@0: 	tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[13],13);
sl@0: 	tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 2],3);
sl@0: 	tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 6],5);
sl@0: 	tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[10],9);
sl@0: 	tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[14],13);
sl@0: 	tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 3],3);
sl@0: 	tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 7],5);
sl@0: 	tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[11],9);
sl@0: 	tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[15],13);
sl@0: 
sl@0: 	tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 0],3);
sl@0: 	tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[ 8],9);
sl@0: 	tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 4],11);
sl@0: 	tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[12],15);
sl@0: 	tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 2],3);
sl@0: 	tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[10],9);
sl@0: 	tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 6],11);
sl@0: 	tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[14],15);
sl@0: 	tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 1],3);
sl@0: 	tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[ 9],9);
sl@0: 	tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 5],11);
sl@0: 	tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[13],15);
sl@0: 	tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 3],3);
sl@0: 	tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[11],9);
sl@0: 	tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 7],11);
sl@0: 	tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[15],15);
sl@0: 
sl@0: 	iA+=tempA;
sl@0: 	iB+=tempB;
sl@0: 	iC+=tempC;
sl@0: 	iD+=tempD;
sl@0: 	}
sl@0: #else
sl@0: #ifdef MACRO
sl@0: #define CMD4_FF(a, b, c, d, x, s) (CMD_R(a += CMD4_F(b,c,d) + x, s))
sl@0: #define CMD4_GG(a, b, c, d, x, s) (CMD_R(a += CMD4_G(b,c,d) + x + (TUint32)0x5a827999, s))
sl@0: #define CMD4_HH(a, b, c, d, x, s) (CMD_R(a += CMD4_H(b,c,d) + x + (TUint32)0x6ed9eba1, s))
sl@0: void CMD4Impl::Block()
sl@0: 	{
sl@0: 	register TUint tempA=iA;
sl@0: 	register TUint tempB=iB;
sl@0: 	register TUint tempC=iC;
sl@0: 	register TUint tempD=iD;
sl@0: 	
sl@0: 	tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[ 0],3);
sl@0: 	tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[ 1],7);
sl@0: 	tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[ 2],11);
sl@0: 	tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[ 3],19);
sl@0: 	tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[ 4],3);
sl@0: 	tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[ 5],7);
sl@0: 	tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[ 6],11);
sl@0: 	tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[ 7],19);
sl@0: 	tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[ 8],3);
sl@0: 	tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[ 9],7);
sl@0: 	tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[10],11);
sl@0: 	tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[11],19);
sl@0: 	tempA = CMD4_FF(tempA,tempB,tempC,tempD,iData[12],3);
sl@0: 	tempD = CMD4_FF(tempD,tempA,tempB,tempC,iData[13],7);
sl@0: 	tempC = CMD4_FF(tempC,tempD,tempA,tempB,iData[14],11);
sl@0: 	tempB = CMD4_FF(tempB,tempC,tempD,tempA,iData[15],19);
sl@0: 
sl@0: 	tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 0],3);
sl@0: 	tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 4],5);
sl@0: 	tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[ 8],9);
sl@0: 	tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[12],13);
sl@0: 	tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 1],3);
sl@0: 	tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 5],5);
sl@0: 	tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[ 9],9);
sl@0: 	tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[13],13);
sl@0: 	tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 2],3);
sl@0: 	tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 6],5);
sl@0: 	tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[10],9);
sl@0: 	tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[14],13);
sl@0: 	tempA = CMD4_GG(tempA,tempB,tempC,tempD,iData[ 3],3);
sl@0: 	tempD = CMD4_GG(tempD,tempA,tempB,tempC,iData[ 7],5);
sl@0: 	tempC = CMD4_GG(tempC,tempD,tempA,tempB,iData[11],9);
sl@0: 	tempB = CMD4_GG(tempB,tempC,tempD,tempA,iData[15],13);
sl@0: 
sl@0: 	tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 0],3);
sl@0: 	tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[ 8],9);
sl@0: 	tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 4],11);
sl@0: 	tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[12],15);
sl@0: 	tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 2],3);
sl@0: 	tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[10],9);
sl@0: 	tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 6],11);
sl@0: 	tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[14],15);
sl@0: 	tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 1],3);
sl@0: 	tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[ 9],9);
sl@0: 	tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 5],11);
sl@0: 	tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[13],15);
sl@0: 	tempA = CMD4_HH(tempA,tempB,tempC,tempD,iData[ 3],3);
sl@0: 	tempD = CMD4_HH(tempD,tempA,tempB,tempC,iData[11],9);
sl@0: 	tempC = CMD4_HH(tempC,tempD,tempA,tempB,iData[ 7],11);
sl@0: 	tempB = CMD4_HH(tempB,tempC,tempD,tempA,iData[15],15);
sl@0: 
sl@0: 	iA+=tempA;
sl@0: 	iB+=tempB;
sl@0: 	iC+=tempC;
sl@0: 	iD+=tempD;
sl@0: 	}
sl@0: #else
sl@0: static inline void CMD4_FF(TUint& a,const TUint b,const TUint c,const TUint d,const TUint x,const TUint s)
sl@0: 	{
sl@0: 	a+=CMD4_F(b,c,d) + x; 
sl@0: 	a=CMD_R(a,s);
sl@0: 	}
sl@0: static inline void CMD4_GG(TUint& a,const TUint b,const TUint c,const TUint d,const TUint x,const TUint s)
sl@0: 	{
sl@0: 	a+=CMD4_G(b,c,d) + x + (TUint32)0x5a827999; 
sl@0: 	a=CMD_R(a,s);
sl@0: 	}
sl@0: static inline void CMD4_HH(TUint& a,const TUint b,const TUint c,const TUint d,const TUint x,const TUint s)
sl@0: 	{
sl@0: 	a+=CMD4_H(b,c,d) + x + (TUint32)0x6ed9eba1; 
sl@0: 	a=CMD_R(a,s);
sl@0: 	}
sl@0: 
sl@0: void CMD4Impl::Block()
sl@0: 	{
sl@0: 	register TUint tempA=iA;
sl@0: 	register TUint tempB=iB;
sl@0: 	register TUint tempC=iC;
sl@0: 	register TUint tempD=iD;
sl@0: 
sl@0: 	CMD4_FF(tempA,tempB,tempC,tempD,iData[ 0],3);
sl@0: 	CMD4_FF(tempD,tempA,tempB,tempC,iData[ 1],7);
sl@0: 	CMD4_FF(tempC,tempD,tempA,tempB,iData[ 2],11);
sl@0: 	CMD4_FF(tempB,tempC,tempD,tempA,iData[ 3],19);
sl@0: 	CMD4_FF(tempA,tempB,tempC,tempD,iData[ 4],3);
sl@0: 	CMD4_FF(tempD,tempA,tempB,tempC,iData[ 5],7);
sl@0: 	CMD4_FF(tempC,tempD,tempA,tempB,iData[ 6],11);
sl@0: 	CMD4_FF(tempB,tempC,tempD,tempA,iData[ 7],19);
sl@0: 	CMD4_FF(tempA,tempB,tempC,tempD,iData[ 8],3);
sl@0: 	CMD4_FF(tempD,tempA,tempB,tempC,iData[ 9],7);
sl@0: 	CMD4_FF(tempC,tempD,tempA,tempB,iData[10],11);
sl@0: 	CMD4_FF(tempB,tempC,tempD,tempA,iData[11],19);
sl@0: 	CMD4_FF(tempA,tempB,tempC,tempD,iData[12],3);
sl@0: 	CMD4_FF(tempD,tempA,tempB,tempC,iData[13],7);
sl@0: 	CMD4_FF(tempC,tempD,tempA,tempB,iData[14],11);
sl@0: 	CMD4_FF(tempB,tempC,tempD,tempA,iData[15],19);
sl@0: 
sl@0: 	CMD4_GG(tempA,tempB,tempC,tempD,iData[ 0],3);
sl@0: 	CMD4_GG(tempD,tempA,tempB,tempC,iData[ 4],5);
sl@0: 	CMD4_GG(tempC,tempD,tempA,tempB,iData[ 8],9);
sl@0: 	CMD4_GG(tempB,tempC,tempD,tempA,iData[12],13);
sl@0: 	CMD4_GG(tempA,tempB,tempC,tempD,iData[ 1],3);
sl@0: 	CMD4_GG(tempD,tempA,tempB,tempC,iData[ 5],5);
sl@0: 	CMD4_GG(tempC,tempD,tempA,tempB,iData[ 9],9);
sl@0: 	CMD4_GG(tempB,tempC,tempD,tempA,iData[13],13);
sl@0: 	CMD4_GG(tempA,tempB,tempC,tempD,iData[ 2],3);
sl@0: 	CMD4_GG(tempD,tempA,tempB,tempC,iData[ 6],5);
sl@0: 	CMD4_GG(tempC,tempD,tempA,tempB,iData[10],9);
sl@0: 	CMD4_GG(tempB,tempC,tempD,tempA,iData[14],13);
sl@0: 	CMD4_GG(tempA,tempB,tempC,tempD,iData[ 3],3);
sl@0: 	CMD4_GG(tempD,tempA,tempB,tempC,iData[ 7],5);
sl@0: 	CMD4_GG(tempC,tempD,tempA,tempB,iData[11],9);
sl@0: 	CMD4_GG(tempB,tempC,tempD,tempA,iData[15],13);
sl@0: 
sl@0: 	CMD4_HH(tempA,tempB,tempC,tempD,iData[ 0],3);
sl@0: 	CMD4_HH(tempD,tempA,tempB,tempC,iData[ 8],9);
sl@0: 	CMD4_HH(tempC,tempD,tempA,tempB,iData[ 4],11);
sl@0: 	CMD4_HH(tempB,tempC,tempD,tempA,iData[12],15);
sl@0: 	CMD4_HH(tempA,tempB,tempC,tempD,iData[ 2],3);
sl@0: 	CMD4_HH(tempD,tempA,tempB,tempC,iData[10],9);
sl@0: 	CMD4_HH(tempC,tempD,tempA,tempB,iData[ 6],11);
sl@0: 	CMD4_HH(tempB,tempC,tempD,tempA,iData[14],15);
sl@0: 	CMD4_HH(tempA,tempB,tempC,tempD,iData[ 1],3);
sl@0: 	CMD4_HH(tempD,tempA,tempB,tempC,iData[ 9],9);
sl@0: 	CMD4_HH(tempC,tempD,tempA,tempB,iData[ 5],11);
sl@0: 	CMD4_HH(tempB,tempC,tempD,tempA,iData[13],15);
sl@0: 	CMD4_HH(tempA,tempB,tempC,tempD,iData[ 3],3);
sl@0: 	CMD4_HH(tempD,tempA,tempB,tempC,iData[11],9);
sl@0: 	CMD4_HH(tempC,tempD,tempA,tempB,iData[ 7],11);
sl@0: 	CMD4_HH(tempB,tempC,tempD,tempA,iData[15],15);
sl@0: 		
sl@0: 	iA+=tempA;
sl@0: 	iB+=tempB;
sl@0: 	iC+=tempC;
sl@0: 	iD+=tempD;
sl@0: 	}
sl@0: #endif
sl@0: #endif
sl@0: 
sl@0: void CMD4Impl::DoFinal(void)
sl@0: 	{
sl@0: 	iNh += iNl;
sl@0: 	const TUint ul128=128;
sl@0: 	switch (iNl&3) 
sl@0: 		{
sl@0: 		case 0:
sl@0: 			iData[iNl>>2] = ul128;
sl@0: 			break;
sl@0: 		case 1:
sl@0: 			iData[iNl>>2] += ul128<<8;
sl@0: 			break;
sl@0: 		case 2:
sl@0: 			iData[iNl>>2] += ul128<<16;
sl@0: 			break;
sl@0: 		case 3:
sl@0: 			iData[iNl>>2] += ul128<<24;
sl@0: 			break;
sl@0: 		default:
sl@0: 			break;
sl@0: 		};
sl@0: 	if (iNl>=56) 
sl@0: 		{
sl@0: 		if (iNl<60)
sl@0: 			iData[15]=0;		
sl@0: 		Block();
sl@0: 		Mem::FillZ(iData,14*sizeof(TUint));
sl@0: 		} 
sl@0: 	else
sl@0: 		{
sl@0: 		const TUint offset=(iNl+4)>>2;
sl@0: 		Mem::FillZ(iData+offset,(14-offset)*sizeof(TUint));
sl@0: 		}
sl@0:    
sl@0:     iData[14]=iNh<<3;//number in bits
sl@0: 	// this will fail if the total input length is longer than 2^32 in bits
sl@0: 	//(2^31 in bytes) which is roughly half a gig.
sl@0: 	iData[15]=0;
sl@0: 
sl@0: 	Block();
sl@0: 	//
sl@0: 	// Generate hash value into iHash
sl@0: 	//
sl@0: 	TUint tmp=iA;
sl@0: 	iHash[0]=(TUint8)(tmp & 255);
sl@0: 	iHash[1]=(TUint8)((tmp >>= 8) & 255);
sl@0: 	iHash[2]=(TUint8)((tmp >>= 8) & 255);
sl@0: 	iHash[3]=(TUint8)((tmp >>= 8) & 255);
sl@0: 
sl@0: 	tmp=iB;
sl@0: 	iHash[4]=(TUint8)(tmp & 255);
sl@0: 	iHash[5]=(TUint8)((tmp >>= 8) & 255);
sl@0: 	iHash[6]=(TUint8)((tmp >>= 8) & 255);
sl@0: 	iHash[7]=(TUint8)((tmp >>= 8) & 255);
sl@0: 
sl@0: 	tmp=iC;
sl@0: 	iHash[8] =(TUint8)(tmp & 255);
sl@0: 	iHash[9] =(TUint8)((tmp >>= 8) & 255);
sl@0: 	iHash[10]=(TUint8)((tmp >>= 8) & 255);
sl@0: 	iHash[11]=(TUint8)((tmp >>= 8) & 255);
sl@0: 
sl@0: 	tmp=iD;
sl@0: 	iHash[12]=(TUint8)(tmp & 255);
sl@0: 	iHash[13]=(TUint8)((tmp >>= 8) & 255);
sl@0: 	iHash[14]=(TUint8)((tmp >>= 8) & 255);
sl@0: 	iHash[15]=(TUint8)((tmp >>= 8) & 255);
sl@0: 	}
sl@0: 
sl@0: void CMD4Impl::RestoreState()
sl@0: 	{
sl@0: 	iA = iACopy;
sl@0: 	iB = iBCopy;
sl@0: 	iC = iCCopy;
sl@0: 	iD = iDCopy;
sl@0: 	iNl = iNlCopy;
sl@0: 	iNh = iNhCopy;	
sl@0: 	Mem::Copy(&iData[0], &iDataCopy[0], KMD4BlockSize*sizeof(TUint)); 
sl@0: 	}
sl@0: 
sl@0: void CMD4Impl::StoreState()
sl@0: 	{
sl@0: 	iACopy = iA;
sl@0: 	iBCopy = iB;
sl@0: 	iCCopy = iC;
sl@0: 	iDCopy = iD;
sl@0: 	iNlCopy = iNl;
sl@0: 	iNhCopy = iNh;	
sl@0: 	Mem::Copy(&iDataCopy[0], &iData[0], KMD4BlockSize*sizeof(TUint));
sl@0: 	}
sl@0: 
sl@0: 
sl@0: // Implemented in hmacimpl.cpp or softwarehashbase.cpp
sl@0: // but required as derived from MHash. No coverage here.
sl@0: #ifdef _BullseyeCoverage
sl@0: #pragma suppress_warnings on
sl@0: #pragma BullseyeCoverage off
sl@0: #pragma suppress_warnings off
sl@0: #endif
sl@0: 
sl@0: TAny* CMD4Impl::GetExtension(TUid /*aExtensionId*/)
sl@0: 	{
sl@0: 	return NULL;	
sl@0: 	}
sl@0: 
sl@0: void CMD4Impl::SetOperationModeL(TUid /*aOperationMode*/)
sl@0: 	{
sl@0: 	User::Leave(KErrNotSupported);
sl@0: 	}
sl@0: 
sl@0: void CMD4Impl::SetKeyL(const CKey& /*aKey*/)
sl@0: 	{
sl@0: 	User::Leave(KErrNotSupported);
sl@0: 	}
sl@0: 
sl@0: 
sl@0: 
sl@0: