--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/omadrm/drmlicensemanager/src/LMSecurityEncrypt.cpp Thu Dec 17 08:52:27 2009 +0200
@@ -0,0 +1,77 @@
+/*
+* 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 "LMSecurityEncrypt.h"
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CLMSecurityEncrypt::CLMSecurityEncrypt
+// Initialize the random key stream from a constant
+// -----------------------------------------------------------------------------
+//
+CLMSecurityEncrypt::CLMSecurityEncrypt(
+ const TDesC8& init)
+ {
+ TPckg<TUint> p(0);
+
+ p.Copy(init);
+ iKey = p();
+ Math::Rand(iKey);
+ }
+
+// -----------------------------------------------------------------------------
+// CLMSecurityEncrypt::EncryptL
+// Encrypt using the key stream
+// -----------------------------------------------------------------------------
+//
+TInt CLMSecurityEncrypt::EncryptL(
+ 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();
+ }
+
+// -----------------------------------------------------------------------------
+// CLMSecurityEncrypt::CompleteL
+// Final encryption
+// -----------------------------------------------------------------------------
+//
+TInt CLMSecurityEncrypt::CompleteL(
+ TDes8& aOutput,
+ const TDesC8& aInput)
+ {
+ return EncryptL(aOutput, aInput);
+ }