--- a/Symbian3/PDK/Source/GUID-38C8F8B0-C259-5B03-A13E-10DBED4071F2.dita	Fri Jul 02 12:51:36 2010 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,131 +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-38C8F8B0-C259-5B03-A13E-10DBED4071F2" xml:lang="en"><title>Signing
-and verification</title><prolog><metadata><keywords/></metadata></prolog><conbody>
-<p>The following example demonstrates signing and verifying with DSA keys.
-It generates a DSA key pair from the factory, signs some randomly generated
-data using the private key and then verifies the signature using the public
-key. </p>
-<codeblock id="GUID-BFCAC8B2-D97E-59BC-8855-E5A030B9E26B" xml:space="preserve">#include &lt;legacyselector.h&gt;
-#include &lt;cryptosignatureapi.h&gt;
-#include &lt;cryptokeypairgeneratorapi.h&gt;
-#include &lt;random.h&gt;
-#include &lt;keypair.h&gt;
-
-using namespace CryptoSpi;
-
-//Get a DSA key pair generator
-CKeyPairGenerator* keyPairGeneratorImpl = NULL;
-
-TRAPD(err,CKeyPairGeneratorFactory::CreateKeyPairGeneratorL
-        (keyPairGeneratorImpl,
-        KDSAKeyPairGeneratorAlgorithmUid,
-        NULL));
-
-if(keyPairGeneratorImpl &amp;&amp; (err == KErrNone))
-    {
-    CleanupStack::PushL(keyPairGeneratorImpl);
-    CCryptoParams* keyParameters = CCryptoParams::NewLC();
-
-    //Create a DSA key pair
-    CKeyPair* keyPair = NULL;
-                
-    //Hardcode the keybit to 512
-    TRAP(err,keyPairGeneratorImpl-&gt;GenerateKeyPairL
-        (512,
-        *keyParameters,
-        keyPair));
-            
-    if(keyPair &amp;&amp; (err == KErrNone))
-        {
-        CleanupStack::PushL(keyPair);
-                
-        //Create a pointer for the signing implementation object
-        CSigner* signerImpl = NULL;
-                
-        //Create a signer implementation object using the private key
-        const CKey&amp; privateKey = keyPair-&gt;PrivateKey();
-        TRAP(err,CSignatureFactory::CreateSignerL(
-             signerImpl,
-             KDsaSignerUid,
-             privateKey,
-             KPaddingModeNoneUid,
-             NULL));
-                
-        if(!signerImpl || (err != KErrNone))
-            {
-            User::Panic(_L("Signer/Verifier"),err);
-            }
-        else
-            {
-            CleanupStack::PushL(signerImpl);
-                
-            //Create the object to hold the signature
-            CCryptoParams* signature = CCryptoParams::NewLC();
-
-            //Generate random data; 128 bytes max length and 128 bytes long
-            TBuf8&lt;128&gt; message(128); 
-            TRandom::RandomL(message);
-
-            //Sign the random data
-            //On return, second parameter contains the signature
-            TRAP(err,signerImpl-&gt;SignL(message, *signature));
-            
-            if(err != KErrNone)
-                {
-                User::Panic(_L("Signature using private key"),err);
-                }
-
-            //Now verify the signature using the public key
-            CVerifier* verifierImpl = NULL;
-                    
-            const CKey&amp; publicKey = keyPair-&gt;PublicKey();
-
-            // Create a verification object from the factory
-            TRAP(err,CSignatureFactory::CreateVerifierL(verifierImpl,
-                 KDsaVerifierUid,
-                 publicKey,
-                 KPaddingModeNoneUid,
-                 NULL));
-                        
-            if (!verifierImpl || (err != KErrNone))
-                {
-                User::Panic(_L("Signer/Verifier"),err);
-                }
-            else
-                {
-                CleanupStack::PushL(verifierImpl);
-
-                TBool verifyResult = EFalse;    
-                        
-                //Verify the signature using the public key
-                verifierImpl-&gt;VerifyL(message, *signature, verifyResult);
-
-                if (verifyResult == EFalse)
-                    {
-                    User::Panic(_L("Signer/Verifier"),err);
-                    }
-                            
-                CleanupStack::PopAndDestroy(verifierImpl);
-                }
-                        
-            CleanupStack::PopAndDestroy(signature);
-            CleanupStack::PopAndDestroy(signerImpl);
-            }
-                    
-        CleanupStack::PopAndDestroy(keyPair);                    
-        }
-            
-    CleanupStack::PopAndDestroy(keyParameters);    
-    CleanupStack::PopAndDestroy(keyPairGeneratorImpl);    
-    }</codeblock>
-</conbody></concept>
\ No newline at end of file