--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crypto/weakcrypto/inc/random.h	Wed Jul 08 11:25:26 2009 +0100
@@ -0,0 +1,220 @@
+/*
+* Copyright (c) 2005-2009 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: 
+* (c) 1999-2003 Symbian Ltd
+*
+*/
+
+
+
+
+
+
+
+/**
+ @file
+ @publishedAll
+ @released
+*/
+
+#ifndef __RANDOM_H__
+#define __RANDOM_H__
+
+#include <e32base.h>
+
+class CRandom : public CBase
+/**
+ * @publishedAll
+ * @released
+ */
+	{
+public:
+
+	/**
+	 * Implementations of this method should fill the passed
+	 * buffer with securely generated random data up to the 
+	 * current length, discarding any current contents.
+	 *
+	 * @param aDest The buffer in to which to write random data.
+	 *
+	 */
+	virtual void GenerateBytesL(TDes8& aDest) = 0;
+protected:
+	IMPORT_C CRandom(void);
+private:
+	CRandom(const CRandom&);
+	CRandom& operator=(const CRandom&);
+	};
+
+/**
+ *
+ * Sets a secure random number generator implementation to use
+ * for this thread.
+ * 
+ * @param aRNG The secure random number generator to use.
+ *
+ */
+IMPORT_C void SetThreadRandomL(CRandom* aRNG);
+
+/**
+ *
+ * Sets a secure random number generator implementation to use
+ * for this thread, placing it on the cleanup stack.
+ * 
+ * @param aRNG The secure random number generator to use.
+ *
+ */
+IMPORT_C void SetThreadRandomLC(CRandom* aRNG);
+
+/** @internalAll */
+void DeleteThreadRandom(TAny* aPtr);
+
+/**
+ *
+ * Destroys the currently installed random number generator
+ * that is in use for this thread.
+ *
+ */
+IMPORT_C void DestroyThreadRandom(void);
+
+/**
+ *
+ * Generates cryptographically secure random data, filling
+ * the provided buffer up to its current length, discarding
+ * any data that it may currently contain.
+ *
+ * @param aDest The buffer to fill with random data
+ *
+ */
+IMPORT_C void GenerateRandomBytesL(TDes8& aDest);
+
+class CSystemRandom : public CRandom
+/**
+ *
+ * This default secure random number generator uses
+ * system state to generate entropy for the generation
+ * of cryptographically secure random numbers.
+ *
+ * @publishedAll
+ * @released
+ *
+ */
+
+	{
+public:
+
+	/**
+	 *
+	 * Constructs a new system random number generator.
+	 *
+	 * @return A ready-to-use random number generator.
+	 */
+	IMPORT_C static CSystemRandom* NewL(void);
+	
+	/**
+	 *
+	 * Constructs a new system random number generator,
+	 * and places it on the cleanup stack.
+	 *
+	 * @return A ready-to-use random number generator.
+	 *
+	 */
+	IMPORT_C static CSystemRandom* NewLC(void);
+	
+	/**
+	 *
+	 * Implements the contract as specified in the base
+	 * class, CRandom, filling the buffer supplied with
+	 * cryptographically secure random data up to its
+	 * current length, discarding its current content.
+	 *
+	 * @param aDest The buffer to which to write random data
+	 *
+	 */
+	virtual void GenerateBytesL(TDes8& aDest);
+private:
+	CSystemRandom(void);
+	CSystemRandom(const CSystemRandom&);
+	CSystemRandom& operator=(const CSystemRandom&);
+	};
+
+class TRandom
+/**
+ *
+ * The user interface to the system cryptographically 
+ * secure random number generator.
+ *
+ * @publishedAll
+ * @released
+ */
+	{
+public:
+
+	/**
+	 * 
+	 * Fills the provided buffer with secure random data up to its
+	 * current length, discarding any current content.
+	 *
+	 * @param aDestination The buffer in which to write the random data.
+	 * @deprecated Use RandomL() instead
+	 * @panic This function can panic under low memory conditions
+	 *
+	 */
+	IMPORT_C static void Random(TDes8& aDestination);
+
+	/**
+	 * 
+	 * Fills the provided buffer with secure random data up to its
+	 * current length, discarding any current content.
+	 *
+	 * @param aDestination The buffer in which to write the random data.
+	 * @leave This function can leave under low memory conditions
+	 *
+	 */
+	IMPORT_C static void RandomL(TDes8& aDestination);
+	};
+
+class RRandomSession:public RSessionBase
+/**
+ *
+ * The client interface to the system random number generator. End
+ * users should use TRandom instead of this interface.
+ *
+ * @publishedAll
+ * @released
+ */
+	{
+public:
+
+	IMPORT_C RRandomSession(void);
+	
+	/**
+	 * 
+	 * Fills the provided buffer with secure random data up to its
+	 * current length, discarding any current content.
+	 *
+	 * @param aDestination The buffer in to which to write the random data 
+	 *
+	 */
+	IMPORT_C TInt GetRandom(TDes8& aDestination);
+	
+	/**
+	 *
+	 * Opens a new session with the random number server.
+	 *
+	 */
+	IMPORT_C void ConnectL(void);
+	};
+
+#endif // __RANDOM_H__