--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cryptoplugins/cryptospiplugins/source/softwarecrypto/md4impl.cpp	Fri Nov 06 13:21:00 2009 +0200
@@ -0,0 +1,538 @@
+/*
+* 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: 
+* software md4 implementation
+* software md4 implementation
+*
+*/
+
+
+/**
+ @file
+*/
+
+#include "md4impl.h"
+#include <cryptospi/hashplugin.h>
+#include "pluginconfig.h"
+
+
+using namespace SoftwareCrypto;
+
+	
+CMD4Impl* CMD4Impl::NewL()
+	{
+	CMD4Impl* self=new (ELeave) CMD4Impl();
+	self->Reset();
+	return self;						
+	}
+														
+CMD4Impl* CMD4Impl::NewLC()
+	{
+	CMD4Impl* self=NewL();
+	CleanupStack::PushL(self);
+	return self;						
+	}
+														
+CMD4Impl::CMD4Impl() : iHash(KMD4HashSize)
+	{		
+	}
+	
+CMD4Impl::CMD4Impl(const CMD4Impl& aCMD4Impl)
+: iHash(aCMD4Impl.iHash),iA(aCMD4Impl.iA),iB(aCMD4Impl.iB),iC(aCMD4Impl.iC),iD(aCMD4Impl.iD),
+  iNl(aCMD4Impl.iNl),iNh(aCMD4Impl.iNh)
+	{
+	(void)Mem::Copy(iData, aCMD4Impl.iData, sizeof(iData));
+	}
+	
+CMD4Impl::~CMD4Impl()
+	{	
+	}
+	
+void CMD4Impl::Reset()
+	{
+	iA=0x67452301;
+	iB=0xefcdab89;
+	iC=0x98badcfe;
+	iD=0x10325476;
+	iNh=0;
+	iNl=0;
+	}
+	
+void CMD4Impl::Close()
+	{
+	delete this;	
+	}
+	
+void CMD4Impl::GetCharacteristicsL(const TCharacteristics*& aPluginCharacteristics)
+	{
+	aPluginCharacteristics=NULL;
+	TInt hashNum=sizeof(KHashCharacteristics)/sizeof(THashCharacteristics*);
+	for (TInt i=0;i<hashNum;i++)
+		{
+		if (KHashCharacteristics[i]->cmn.iImplementationUID == ImplementationUid().iUid)
+			{
+			aPluginCharacteristics = KHashCharacteristics[i];
+			break;
+			}
+		}	
+	}
+	
+CExtendedCharacteristics* CMD4Impl::CreateExtendedCharacteristicsL()
+	{
+	// All Symbian software plug-ins have unlimited concurrency, cannot be reserved
+	// for exclusive use and are not CERTIFIED to be standards compliant.
+	return CExtendedCharacteristics::NewL(KMaxTInt, EFalse);
+	}
+const CExtendedCharacteristics* CMD4Impl::GetExtendedCharacteristicsL()
+	{
+	return CMD4Impl::CreateExtendedCharacteristicsL();
+	}
+
+TPtrC8 CMD4Impl::Hash(const TDesC8& aMessage)
+	{
+	DoUpdate(aMessage.Ptr(),aMessage.Size());
+	StoreState();
+	DoFinal();
+	RestoreState();
+	return iHash;
+	}		
+	
+void CMD4Impl::Update(const TDesC8& aMessage)
+	{
+	DoUpdate(aMessage.Ptr(),aMessage.Size());	
+	}
+	
+TPtrC8 CMD4Impl::Final(const TDesC8& aMessage)
+	{
+	if (aMessage!=KNullDesC8())
+		{
+		DoUpdate(aMessage.Ptr(),aMessage.Size());			
+		}
+	DoFinal();
+	Reset();
+	return iHash;
+	}
+	
+MHash* CMD4Impl::ReplicateL()
+	{	 
+	return CMD4Impl::NewL();
+	}
+	
+MHash* CMD4Impl::CopyL()
+	{
+	return new(ELeave) CMD4Impl(*this);	
+	}
+
+TUid CMD4Impl::ImplementationUid()
+	{
+	return KCryptoPluginMd4Uid;
+	}
+
+void CMD4Impl::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 CMD4Impl::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 CMD4Impl::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 CMD4Impl::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 CMD4Impl::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 CMD4Impl::RestoreState()
+	{
+	iA = iACopy;
+	iB = iBCopy;
+	iC = iCCopy;
+	iD = iDCopy;
+	iNl = iNlCopy;
+	iNh = iNhCopy;	
+	Mem::Copy(&iData[0], &iDataCopy[0], KMD4BlockSize*sizeof(TUint)); 
+	}
+
+void CMD4Impl::StoreState()
+	{
+	iACopy = iA;
+	iBCopy = iB;
+	iCCopy = iC;
+	iDCopy = iD;
+	iNlCopy = iNl;
+	iNhCopy = iNh;	
+	Mem::Copy(&iDataCopy[0], &iData[0], KMD4BlockSize*sizeof(TUint));
+	}
+
+
+// Implemented in hmacimpl.cpp or softwarehashbase.cpp
+// but required as derived from MHash. No coverage here.
+#ifdef _BullseyeCoverage
+#pragma suppress_warnings on
+#pragma BullseyeCoverage off
+#pragma suppress_warnings off
+#endif
+
+TAny* CMD4Impl::GetExtension(TUid /*aExtensionId*/)
+	{
+	return NULL;	
+	}
+
+void CMD4Impl::SetOperationModeL(TUid /*aOperationMode*/)
+	{
+	User::Leave(KErrNotSupported);
+	}
+
+void CMD4Impl::SetKeyL(const CKey& /*aKey*/)
+	{
+	User::Leave(KErrNotSupported);
+	}
+
+
+
+