--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cryptoplugins/cryptospiplugins/source/softwarecrypto/macimpl.cpp	Fri Nov 06 13:21:00 2009 +0200
@@ -0,0 +1,302 @@
+/*
+* Copyright (c) 2008-2009 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 Mac Implementation
+* Software Mac Implementation
+* MAC plugin header
+*
+*/
+
+
+/**
+ @file
+*/
+#include "macimpl.h"
+#include "pluginconfig.h"
+
+/**
+ * HMAC plugin headers
+ */ 
+#include "md2impl.h"
+#include "md4impl.h"
+#include "md5impl.h"
+#include "sha1impl.h"
+#include "sha2impl.h"
+#include "hmacimpl.h"
+
+
+using namespace SoftwareCrypto;
+using namespace CryptoSpi;
+
+
+CMacImpl* CMacImpl::NewL(const CKey& aKey, const TUid aImplementationId, const CCryptoParams* aAlgorithmParams)
+	{
+	CMacImpl* self = new (ELeave) CMacImpl();
+	CleanupStack::PushL(self);
+	self->ConstructL(aKey, aImplementationId, aAlgorithmParams);
+	CleanupStack::Pop();
+	return self;
+	}
+
+CMacImpl::CMacImpl() 
+	{
+	}
+
+void CMacImpl::ConstructL(const CKey& aKey, const TUid aImplementationId, const CCryptoParams* /*aAlgorithmParams*/) 
+	{
+	iImplementationUid = aImplementationId; 
+	iKey = CryptoSpi::CKey::NewL(aKey);
+		
+	MSoftwareHash* hashImpl = NULL;
+	
+	switch (aImplementationId.iUid)
+		{
+		case KCryptoPluginMacHashMd2:
+			{
+			hashImpl = CMD2Impl::NewL();
+			CleanupClosePushL(*hashImpl);
+			iHmacImpl=CHMacImpl::NewL(*iKey, hashImpl);
+			iBase = EHashBased;
+			}
+			break;
+		case KCryptoPluginMacHashMd5:
+			{
+			hashImpl = CMD5Impl::NewL();
+			CleanupClosePushL(*hashImpl);
+			iHmacImpl=CHMacImpl::NewL(*iKey, hashImpl);
+			iBase = EHashBased;
+			}
+			break;
+		case KCryptoPluginMacHashMd4:
+			{
+			hashImpl = CMD4Impl::NewL();
+			CleanupClosePushL(*hashImpl);
+			iHmacImpl=CHMacImpl::NewL(*iKey, hashImpl);
+			iBase = EHashBased;
+			}
+			break;
+		case KCryptoPluginMacHashSha1:
+			{
+			hashImpl = CSHA1Impl::NewL();
+			CleanupClosePushL(*hashImpl);
+			iHmacImpl=CHMacImpl::NewL(*iKey, hashImpl);
+			iBase = EHashBased;
+			}
+			break;
+		case KCryptoPluginMacHashSha224:
+			{
+			hashImpl = CSHA2Impl::NewL(KCryptoPluginSha224);
+			CleanupClosePushL(*hashImpl);
+			iHmacImpl=CHMacImpl::NewL(*iKey, hashImpl);
+			iBase = EHashBased;
+			}
+			break;
+		case KCryptoPluginMacHashSha256:
+			{
+			hashImpl = CSHA2Impl::NewL(KCryptoPluginSha256);
+			CleanupClosePushL(*hashImpl);
+			iHmacImpl=CHMacImpl::NewL(*iKey, hashImpl);
+			iBase = EHashBased;
+			}
+			break;
+		case KCryptoPluginMacHashSha384:
+			{
+			hashImpl = CSHA2Impl::NewL(KCryptoPluginSha384);
+			CleanupClosePushL(*hashImpl);
+			iHmacImpl=CHMacImpl::NewL(*iKey, hashImpl);
+			iBase = EHashBased;
+			}
+			break;
+		case KCryptoPluginMacHashSha512:
+			{
+			hashImpl = CSHA2Impl::NewL(KCryptoPluginSha512);
+			CleanupClosePushL(*hashImpl);
+			iHmacImpl=CHMacImpl::NewL(*iKey, hashImpl);
+			iBase = EHashBased;
+			}
+			break;
+		case KCryptoPluginMacAesXcbcMac96:
+			{
+			CSymmetricCipher* symmetricCipher = NULL;
+			CryptoSpi::CSymmetricCipherFactory::CreateSymmetricCipherL(symmetricCipher,
+														CryptoSpi::KAesUid, *iKey,
+														CryptoSpi::KCryptoModeEncryptUid,
+														CryptoSpi::KOperationModeCBCUid,
+														CryptoSpi::KPaddingModeNoneUid,
+														NULL);
+			
+			iCmacImpl= CCMacImpl::NewL(*iKey, symmetricCipher, CryptoSpi::KAlgorithmCipherAesXcbcMac96);
+			iBase = ECipherBased;
+			}
+			break;
+		case KCryptoPluginMacAesXcbcPrf128:
+			{
+			TBuf8<16> tempKey;
+			tempKey.SetLength(16);
+			
+			CryptoSpi::CCryptoParams* keyParams = CryptoSpi::CCryptoParams::NewLC();
+			keyParams->AddL(tempKey, CryptoSpi::KSymmetricKeyParameterUid);
+			CryptoSpi::CKey* key = CryptoSpi::CKey::NewLC(aKey.KeyProperty(),*keyParams);
+				
+			CSymmetricCipher* symmetricCipher = NULL;
+			CryptoSpi::CSymmetricCipherFactory::CreateSymmetricCipherL(symmetricCipher,
+														CryptoSpi::KAesUid, *key,
+														CryptoSpi::KCryptoModeEncryptUid,
+														CryptoSpi::KOperationModeCBCUid,
+														CryptoSpi::KPaddingModeNoneUid,
+														NULL);
+			CleanupStack::PopAndDestroy(2, keyParams); //key and keyParams
+			
+			iCmacImpl= CCMacImpl::NewL(*iKey, symmetricCipher, CryptoSpi::KAlgorithmCipherAesXcbcPrf128);
+			iBase = ECipherBased;
+			}
+			break;
+
+		default:
+			User::Leave(KErrNotSupported);
+		}
+
+	if(iBase == EHashBased)
+		{
+		CleanupStack::PopAndDestroy(hashImpl);
+		}
+	}
+
+CMacImpl::~CMacImpl()
+	{
+	delete iKey;
+	if(iHmacImpl)
+		{
+		iHmacImpl->Close();
+		}
+	delete iCmacImpl;
+	}
+	
+void CMacImpl::Reset()
+	{
+	if (iBase == EHashBased)
+		{
+		iHmacImpl->Reset();
+		}
+	else if (iBase == ECipherBased)
+		{
+		iCmacImpl->Reset();
+		}
+	}
+	
+void CMacImpl::Close()
+	{
+	delete this;	
+	}
+	
+void CMacImpl::GetCharacteristicsL(const TCharacteristics*& aPluginCharacteristics)
+	{
+	aPluginCharacteristics=NULL;
+	TInt macNum=sizeof(KMacCharacteristics)/sizeof(TMacCharacteristics*);
+	for (TInt i=0;i<macNum;++i)
+		{
+		if (KMacCharacteristics[i]->iMacChar.iImplementationUID==ImplementationUid().iUid)
+			{
+			aPluginCharacteristics = KMacCharacteristics[i];
+			break;
+			}
+		}	
+	}
+
+const CExtendedCharacteristics* CMacImpl::GetExtendedCharacteristicsL()
+	{
+	return (iBase == EHashBased) ? iHmacImpl->GetExtendedCharacteristicsL(): iCmacImpl->GetExtendedCharacteristicsL();
+	}
+
+TAny* CMacImpl::GetExtension(TUid aExtensionId)
+	{
+	return (iBase == EHashBased) ? iHmacImpl->GetExtension(aExtensionId): NULL;
+	}
+
+TUid CMacImpl::ImplementationUid() const
+	{
+	return iImplementationUid;
+	}
+
+TPtrC8 CMacImpl::MacL(const TDesC8& aMessage)
+	{
+	return (iBase == EHashBased) ? iHmacImpl->Hash(aMessage):iCmacImpl->MacL(aMessage);
+	}		
+	
+void CMacImpl::UpdateL(const TDesC8& aMessage)
+	{
+	(iBase == EHashBased) ? iHmacImpl->Update(aMessage):iCmacImpl->UpdateL(aMessage);
+	}
+
+TPtrC8 CMacImpl::FinalL(const TDesC8& aMessage)
+	{
+	return (iBase == EHashBased) ? iHmacImpl->Final(aMessage):iCmacImpl->FinalL(aMessage);
+	}
+
+void CMacImpl::ReInitialiseAndSetKeyL(const CKey& aKey)
+	{
+	delete iKey;
+	iKey = NULL;
+	iKey = CryptoSpi::CKey::NewL(aKey);
+	
+	if (iBase == EHashBased)
+		{
+		iHmacImpl->SetKeyL(aKey);
+		iHmacImpl->Reset();
+		}
+	else if (iBase == ECipherBased)
+		{
+		iCmacImpl->ReInitialiseAndSetKeyL(aKey);
+		}
+	}
+
+MMac* CMacImpl::ReplicateL()
+	{
+	CMacImpl* that= new(ELeave) CMacImpl();
+	CleanupStack::PushL(that);
+	that->iImplementationUid = iImplementationUid;
+	that->iBase = iBase;
+	that->iKey=CKey::NewL(*iKey);
+	
+	if(iBase == EHashBased)
+		{
+		that->iHmacImpl=static_cast<CHMacImpl*>(iHmacImpl->ReplicateL());
+		}
+	else if (iBase == ECipherBased)
+		{
+		that->iCmacImpl= iCmacImpl->ReplicateL();
+		}
+	CleanupStack::Pop(that);
+	return that;
+	}
+	
+MMac* CMacImpl::CopyL()
+	{
+	CMacImpl* that= new(ELeave) CMacImpl();
+	CleanupStack::PushL(that);
+	that->iImplementationUid = iImplementationUid;
+	that->iBase = iBase;
+	that->iKey=CKey::NewL(*iKey);
+
+	if(iBase == EHashBased)
+		{
+		that->iHmacImpl=static_cast<CHMacImpl*>(iHmacImpl->CopyL());
+		}
+	else if (iBase == ECipherBased)
+		{
+		that->iCmacImpl= iCmacImpl->CopyL();
+		}
+	CleanupStack::Pop(that);
+	return that;
+	}