--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/crypto/weakcryptospi/source/symmetric/rijndaelshim.h Fri Nov 13 10:07:38 2009 +0530
@@ -0,0 +1,145 @@
+/*
+* 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:
+* rijndael shim classes definition
+*
+*/
+
+
+/**
+ @file
+ @internalComponent
+ @released
+*/
+
+#ifndef __RIJNDAELSHIM_H__
+#define __RIJNDAELSHIM_H__
+
+#include <rijndael.h>
+
+namespace CryptoSpi
+ {
+ class CSymmetricCipher;
+ class CKey;
+ }
+
+NONSHARABLE_CLASS(CAESEncryptorShim) : public CAESEncryptor
+{
+public:
+ /**
+ Creates an CAESEncryptorShim object which has the same interface
+ as AESEncryptor but delegates all work to a Crypto SPI plug-in.
+
+ @param aKey The encryption key
+ @return A pointer to a CAESEncryptorShim instance
+ */
+ static CAESEncryptorShim* NewL(const TDesC8& aKey);
+
+ /**
+ Creates an CAESEncryptorShim object which has the same interface
+ as AESEncryptor but delegates all work to a Crypto SPI plug-in.
+
+ A pointer to the new object is placed on the cleanup stack
+
+ @param aKey The encryption key
+ @return A pointer to a CAESEncryptorShim instance
+ */
+ static CAESEncryptorShim* NewLC(const TDesC8& aKey);
+
+ // From CBlockTransform
+ TInt BlockSize() const;
+ void Transform(TDes8& aBlock);
+ void Reset(void);
+ TInt KeySize(void) const;
+
+ /// Destructor
+ ~CAESEncryptorShim();
+
+private:
+ /// Constructor
+ CAESEncryptorShim();
+ void ConstructL(const TDesC8& aKey);
+
+ // From CBase
+ TInt Extension_(TUint aExtensionId, TAny*& a0, TAny* a1);
+
+private:
+ /// SPI delegate
+ CryptoSpi::CSymmetricCipher* iSymmetricCipherImpl;
+
+ /// SPI requires all key to passed as key-objects
+ CryptoSpi::CKey* iKey;
+
+ /// Temporary output block, SPI does not overwrite input
+ /// AES uses 64bit blocks
+ TBuf8<16> iOutputBlock;
+};
+
+NONSHARABLE_CLASS(CAESDecryptorShim) : public CAESDecryptor
+{
+public:
+ /**
+ Creates an CAESDecryptorShim object which has the same interface
+ as AESDecryptor but delegates all work to a Crypto SPI plug-in.
+
+ @param aKey The decryption key
+ @return A pointer to a CAESDecryptorShim instance
+ */
+ static CAESDecryptorShim* NewL(const TDesC8& aKey);
+
+ /**
+ Creates an CAESDecryptorShim object which has the same interface
+ as AESDecryptor but delegates all work to a Crypto SPI plug-in.
+
+ A pointer to the new object is placed on the cleanup stack
+
+ @param aKey The decryption key
+ @return A pointer to a CAESDecryptorShim instance
+ */
+ static CAESDecryptorShim* NewLC(const TDesC8& aKey);
+
+ // From CBlockTransform
+ TInt BlockSize() const;
+ void Transform(TDes8& aBlock);
+ void Reset(void);
+ TInt KeySize(void) const;
+
+ /// Destructor
+ ~CAESDecryptorShim();
+
+private:
+ /// Constructor
+ CAESDecryptorShim();
+ void ConstructL(const TDesC8& aKey);
+
+ /**
+ From CBase, to allow CBufferedTransform & CBlockChainingMode
+ to determine whether the functionality may be delegated to
+ the SPI object.
+ */
+ TInt Extension_(TUint aExtensionId, TAny*& a0, TAny* a1);
+
+private:
+ /// SPI delegate
+ CryptoSpi::CSymmetricCipher* iSymmetricCipherImpl;
+
+ /// SPI requires all key to passed as key-objects
+ CryptoSpi::CKey* iKey;
+
+ /// Temporary output block, SPI does not overwrite input
+ /// AES uses 64bit blocks
+ TBuf8<16> iOutputBlock;
+};
+
+#endif // __RIJNDAELSHIM_H__