diff -r 000000000000 -r 95b198f216e5 omadrm/drmlicensemanager/src/LMSecurityDecrypt.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/omadrm/drmlicensemanager/src/LMSecurityDecrypt.cpp	Thu Dec 17 08:52:27 2009 +0200
@@ -0,0 +1,65 @@
+/*
+* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "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:  Encryption/Decryption support functions
+*
+*/
+
+
+// INCLUDE FILES
+#include <e32std.h>
+#include <e32base.h>
+#include <e32math.h>
+#include <s32buf.h>
+#include <s32crypt.h>
+
+#include "LMSecurity.h"
+#include "LMSecurityDecrypt.h"
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// ?classname::?member_function
+// ?implementation_description
+// -----------------------------------------------------------------------------
+//
+CLMSecurityDecrypt::CLMSecurityDecrypt(
+    const TDesC8& init)
+    {
+    TPckg<TUint> p(0);
+
+    p.Copy(init);
+    iKey = p();
+    Math::Rand(iKey);
+    }
+
+// -----------------------------------------------------------------------------
+// ?classname::?member_function
+// ?implementation_description
+// -----------------------------------------------------------------------------
+//
+TInt CLMSecurityDecrypt::DecryptL(
+    TDes8& aOutput,
+    const TDesC8& aInput)
+    {
+    TInt i;
+    TUint8* ptr;
+
+    ptr = const_cast<TUint8*>(aOutput.Ptr());
+    for (i = 0; i < aInput.Size(); i++)
+        {
+        ptr[i] = static_cast<TUint8>(aInput[i] ^ Math::Rand(iKey));
+        }
+    aOutput.SetLength(aInput.Size());
+    return aInput.Size();
+    }