--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/crypto/weakcryptospi/source/symmetric/rijndaelshim.cpp Fri Nov 06 13:21:00 2009 +0200
@@ -0,0 +1,187 @@
+/*
+* Copyright (c) 2006-2009 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:
+*
+*/
+
+
+#include "rijndaelshim.h"
+
+#include "cryptosymmetriccipherapi.h"
+#include <cryptospi/cryptospidef.h>
+#include <cryptospi/plugincharacteristics.h>
+#include "keys.h"
+#include <cryptostrength.h>
+
+#include "../common/inlines.h"
+
+using namespace CryptoSpi;
+
+// CAESEncryptorShim ////////////////////////////////////////////////////////
+CAESEncryptorShim* CAESEncryptorShim::NewL(const TDesC8& aKey)
+ {
+ CAESEncryptorShim* self = CAESEncryptorShim::NewLC(aKey);
+ CleanupStack::Pop(self);
+ return self;
+ }
+
+CAESEncryptorShim* CAESEncryptorShim::NewLC(const TDesC8& aKey)
+ {
+ CAESEncryptorShim* self = new (ELeave) CAESEncryptorShim();
+ CleanupStack::PushL(self);
+ self->ConstructL(aKey);
+ TCrypto::IsSymmetricWeakEnoughL(BytesToBits(aKey.Size()));
+ return self;
+ }
+
+CAESEncryptorShim::CAESEncryptorShim()
+ {
+ }
+
+CAESEncryptorShim::~CAESEncryptorShim()
+ {
+ delete iSymmetricCipherImpl;
+ delete iKey;
+ }
+
+void CAESEncryptorShim::ConstructL(const TDesC8& aKey)
+ {
+ TKeyProperty keyProperty = {KAesUid, KNullUid, KSymmetricKeyUid, KNonEmbeddedKeyUid};
+ CCryptoParams* keyParam =CCryptoParams::NewLC();
+ keyParam->AddL(aKey, KSymmetricKeyParameterUid);
+ iKey=CKey::NewL(keyProperty, *keyParam);
+ CleanupStack::PopAndDestroy(keyParam);
+ CSymmetricCipherFactory::CreateSymmetricCipherL(
+ iSymmetricCipherImpl,
+ KAesUid,
+ *iKey,
+ KCryptoModeEncryptUid,
+ KOperationModeECBUid,
+ KPaddingModeNoneUid,
+ NULL);
+ }
+
+TInt CAESEncryptorShim::BlockSize() const
+ {
+ return BitsToBytes(iSymmetricCipherImpl->BlockSize());
+ }
+
+TInt CAESEncryptorShim::KeySize() const
+ {
+ return iSymmetricCipherImpl->KeySize();
+ }
+
+void CAESEncryptorShim::Transform(TDes8& aBlock)
+ {
+ iOutputBlock.Zero();
+ TRAP_IGNORE(iSymmetricCipherImpl->ProcessL(aBlock, iOutputBlock);)
+ aBlock = iOutputBlock;
+ }
+
+void CAESEncryptorShim::Reset()
+ {
+ iSymmetricCipherImpl->Reset();
+ }
+
+TInt CAESEncryptorShim::Extension_(TUint aExtensionId, TAny*& a0, TAny* /*a1*/)
+ {
+ TInt ret(KErrExtensionNotSupported);
+
+ if (CryptoSpi::KSymmetricCipherInterface == aExtensionId && iSymmetricCipherImpl)
+ {
+ a0=iSymmetricCipherImpl;
+ ret=KErrNone;
+ }
+ return ret;
+ }
+
+// CAESDecryptorShim ////////////////////////////////////////////////////////
+
+CAESDecryptorShim* CAESDecryptorShim::NewL(const TDesC8& aKey)
+ {
+ CAESDecryptorShim* self = CAESDecryptorShim::NewLC(aKey);
+ CleanupStack::Pop(self);
+ return self;
+ }
+
+
+CAESDecryptorShim* CAESDecryptorShim::NewLC(const TDesC8& aKey)
+ {
+ CAESDecryptorShim* self = new (ELeave) CAESDecryptorShim();
+ CleanupStack::PushL(self);
+ self->ConstructL(aKey);
+ TCrypto::IsSymmetricWeakEnoughL(BytesToBits(aKey.Size()));
+ return self;
+ }
+
+CAESDecryptorShim::CAESDecryptorShim()
+ {
+ }
+
+CAESDecryptorShim::~CAESDecryptorShim()
+ {
+ delete iSymmetricCipherImpl;
+ delete iKey;
+ }
+
+void CAESDecryptorShim::ConstructL(const TDesC8& aKey)
+ {
+ TKeyProperty keyProperty = {KAesUid, KNullUid, KSymmetricKeyUid, KNonEmbeddedKeyUid};
+ CCryptoParams* keyParam =CCryptoParams::NewLC();
+ keyParam->AddL(aKey, KSymmetricKeyParameterUid);
+ iKey=CKey::NewL(keyProperty, *keyParam);
+ CleanupStack::PopAndDestroy(keyParam);
+ CSymmetricCipherFactory::CreateSymmetricCipherL(
+ iSymmetricCipherImpl,
+ KAesUid,
+ *iKey,
+ KCryptoModeDecryptUid,
+ KOperationModeECBUid,
+ KPaddingModeNoneUid,
+ NULL);
+ }
+
+TInt CAESDecryptorShim::BlockSize() const
+ {
+ return BitsToBytes(iSymmetricCipherImpl->BlockSize());
+ }
+
+TInt CAESDecryptorShim::KeySize() const
+ {
+ return iSymmetricCipherImpl->KeySize();
+ }
+
+void CAESDecryptorShim::Transform(TDes8& aBlock)
+ {
+ iOutputBlock.Zero();
+ TRAP_IGNORE(iSymmetricCipherImpl->ProcessL(aBlock, iOutputBlock);)
+ aBlock = iOutputBlock;
+ }
+
+void CAESDecryptorShim::Reset()
+ {
+ iSymmetricCipherImpl->Reset();
+ }
+
+TInt CAESDecryptorShim::Extension_(TUint aExtensionId, TAny*& a0, TAny* /*a1*/)
+ {
+ TInt ret(KErrExtensionNotSupported);
+
+ if (CryptoSpi::KSymmetricCipherInterface == aExtensionId && iSymmetricCipherImpl)
+ {
+ a0=iSymmetricCipherImpl;
+ ret=KErrNone;
+ }
+ return ret;
+ }