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