--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/authenticationservices/authenticationserver/source/server/transientkey.cpp	Tue Nov 24 09:06:03 2009 +0200
@@ -0,0 +1,95 @@
+/*
+* 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: 
+* CTransientKey implementation
+*
+*/
+
+
+/**
+ @file 
+*/
+
+#include "authserver_impl.h"
+
+
+using namespace AuthServer;
+
+CTransientKey* CTransientKey::NewL(CPBEncryptElement* aEncryptor)
+	{
+	CTransientKey*  key =
+		CTransientKey::NewLC(aEncryptor);
+	CleanupStack::Pop(key);
+	return key;
+	}
+
+CTransientKey* CTransientKey::NewLC(CPBEncryptElement* aEncryptor)
+	{
+	CTransientKey*  key = new (ELeave) CTransientKey();
+	CleanupStack::PushL(key);
+	key->ConstructL(aEncryptor);
+	return key;
+	}
+
+void CTransientKey::ConstructL(CPBEncryptElement* aEncryptor)
+	{
+	iPbeElement = aEncryptor;
+    }
+
+CTransientKey::~CTransientKey()
+	{
+	delete iPbeElement;
+	}
+
+CEncryptedProtectionKey*
+CTransientKey::EncryptL(const CProtectionKey& aKey) const
+	{
+	TPtrC8 protData = aKey.KeyData();
+	
+	CPBEncryptor* encryptor = iPbeElement->NewEncryptLC();
+	
+	HBufC8* ciphertext =
+		HBufC8::NewLC(encryptor->MaxFinalOutputLength(protData.Length()));
+
+	TPtr8 ciphertextTemp = ciphertext->Des();
+	
+	encryptor->ProcessFinalL(protData, ciphertextTemp);
+
+	CEncryptedProtectionKey* key = CEncryptedProtectionKey::NewL(ciphertext);
+	
+	CleanupStack::Pop(ciphertext); // don't delete cipher text
+	CleanupStack::PopAndDestroy(encryptor);
+	
+	return key;
+	}
+
+CProtectionKey*
+CTransientKey::DecryptL(const CEncryptedProtectionKey& aKey) const
+	{
+	TPtrC8 encData = aKey.KeyData();
+	
+	CPBDecryptor* decryptor = iPbeElement->NewDecryptLC();
+
+	HBufC8* plaintext =
+		HBufC8::NewLC(decryptor->MaxFinalOutputLength(encData.Length()));
+	TPtr8 plaintextTemp = plaintext->Des();
+
+	// Decrypt the data
+	decryptor->ProcessFinalL(encData, plaintextTemp);
+		 
+	CProtectionKey* key = CProtectionKey::NewL(plaintext);
+	CleanupStack::Pop(plaintext);
+	CleanupStack::PopAndDestroy(decryptor);
+	return key;
+	}