--- a/Symbian3/PDK/Source/GUID-D2D17EF9-FFC6-5FBD-A992-55746A12B625.dita	Fri Jul 02 12:51:36 2010 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,103 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- Copyright (c) 2007-2010 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: 
--->
-<!DOCTYPE concept
-  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
-<concept id="GUID-D2D17EF9-FFC6-5FBD-A992-55746A12B625" xml:lang="en"><title>Basic
-encryption and decryption using a symmetric cipher</title><prolog><metadata><keywords/></metadata></prolog><conbody>
-<p>This example demonstrates how to encrypt and decrypt a small string of
-data using a symmetric cipher. Firstly, an encryption operation is performed
-on the data. Following this a decryption operation is performed on the encrypted
-data. Finally a check is made on the decrypted data for equality with the
-original data which tests that the encrypt and decrypt operations have maintained
-data integrity. </p>
-<codeblock id="GUID-E9342EBD-213A-53CE-BA3E-93CC24D63319" xml:space="preserve">#include &lt;legacyselector.h&gt;
-#include &lt;cryptosymmetriccipherapi.h&gt;
-#include &lt;keys.h&gt;
-
-using namespace CryptoSpi;
-
-//Create a new CCryptoParams object to encapsulate the secret key string and key type
-CCryptoParams* params = CCryptoParams::NewLC(); 
-
-//Add the secret key to the CCryptoParams object by calling the CCryptoParams::AddL() method,  
-//passing in the key string and appropriate key parameter UID
-params-&gt;AddL( _L8("12345678"), KSymmetricKeyParameterUid);
-
-//Create a key object (CKey) by passing in an instance of TKeyProperty and the previously 
-//created CCryptoParams object containing the secret key. 
-TKeyProperty keyProperty = {KDesUid, KNullUid, KSymmetricKey, KNonEmbeddedKeyUid};
-CKey* key=CKey::NewL(keyProperty, *params); 
-CleanupStack::PushL(key);
-//Create and initialize a pointer for the Symmetric cipher implementation object
-CSymmetricCipher* impl = NULL;    
-
-//Create a symmetric cipher passing in the appropriate CKey object
-TRAPD(err, CSymmetricCipherFactory::CreateSymmetricCipherL
-    (impl,
-    KDesUid,
-    *key,
-    KCryptoModeEncryptUid,  // This can be either encrypt or decrypt
-    KOperationModeECBUid,   // Use "electronic code book" mode
-    KPaddingModeNoneUid,   // This is the type of padding to be used
-    NULL));
-
-//Check the return value and for non NULL
-if (impl &amp;&amp; (err == KErrNone))
-    {
-    //Create a buffer holding the data to be encrypted
-    TBuf8&lt;8&gt; srcData(_L8("12345678"));
-    
-    //Create a buffer to hold the encrypted data.
-    //MaxFinalOutputLength() returns the number of bytes the buffer passed to ProcessFinalL()
-    //needs to be capable of holding
-    TInt maxOutputLength = impl-&gt;MaxFinalOutputLength(srcData.Length());
-    HBufC8* encrypted =    HBufC8::NewLC(maxOutputLength);
-    TPtr8 encryptedPtr = encrypted-&gt;Des();
-
-    //Perform the encryption operation 
-    //ProcessFinalL() pads the input buffer if required
-    TRAP(err, impl-&gt;ProcessFinalL(srcData, encryptedPtr));
-
-    if (err == KErrNone)
-        {
-        //Switch to decrypt mode
-        impl-&gt;SetCryptoModeL(KCryptoModeDecryptUid);
-    
-        //Create a buffer for the decrypted data
-        maxOutputLength = encryptedPtr.Length();
-        HBufC8* output = HBufC8::NewLC(impl-&gt;MaxFinalOutputLength(maxOutputLength));
-        TPtr8 outputPtr = output-&gt;Des();
-        
-        //Perform the decryption operation
-        TRAP(err, impl-&gt;ProcessFinalL(encryptedPtr, outputPtr));
-
-    if (err == KErrNone)
-        {
-            //Check that the original source data matches the data that 
-            //has been encrypted then decrypted
-            if (!outputPtr.Compare(srcData))
-                {
-                // Descriptors are the same - successful encrypt/decrypt check
-                }
-            }
-
-        CleanupStack::PopAndDestroy(output); 
-        }
-
-    CleanupStack::PopAndDestroy(encrypted); 
-    }
-
-//Destroy the symmetric implementation object    
-delete impl;
-impl = NULL;
-
-CleanupStack::PopAndDestroy(key);
-CleanupStack::PopAndDestroy(params);</codeblock>
-</conbody></concept>
\ No newline at end of file