--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/networksecurity/tlsprovider/Test/tlstest2/clientkeyexchangestep.cpp	Tue Jan 26 15:23:49 2010 +0200
@@ -0,0 +1,303 @@
+// Copyright (c) 2006-2009 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:
+//
+
+/**
+ @file clientkeyexchangestep.cpp
+ @internalTechnology
+*/
+#include "clientkeyexchangestep.h"
+
+#include <tlsprovinterface.h>
+#include <x509cert.h>
+#include <asymmetric.h>
+#include <asymmetrickeys.h>
+#include <asnpkcs.h>
+
+CClientKeyExchangeStep::CClientKeyExchangeStep()
+	{
+	SetTestStepName(KClientKeyExchangeStep);
+	}
+
+TVerdict CClientKeyExchangeStep::doTestStepPreambleL()
+	{
+
+	ConstructL();
+
+	CTlsCryptoAttributes* atts = Provider()->Attributes();
+
+	// Reads PSK values if included in INI file.
+	ReadPskToBeUsedL();
+	// Reads if NULL ciphers suites are to be allowed from INI file.
+	ReadUseNullCipher();
+
+	// read the "server" random
+	HBufC8* random = ServerRandomL();
+	atts->iMasterSecretInput.iServerRandom.Copy(*random);
+	delete random;
+
+	// and the client random
+	random = ClientRandomL();
+	atts->iMasterSecretInput.iClientRandom.Copy(*random);
+	delete random;
+
+	// we only support null compression...
+	atts->iCompressionMethod = ENullCompression;
+
+	// read the cipher suite for the test
+	atts->iCurrentCipherSuite = CipherSuiteL();
+
+	// read the protocol version
+	TTLSProtocolVersion version = ProtocolVersionL();
+	atts->iNegotiatedProtocol = version;
+	atts->iProposedProtocol = version;
+
+	// set the session ID and "server" name (localhost)
+	atts->iSessionNameAndID.iSessionId = SessionId();
+	atts->iSessionNameAndID.iServerName.iAddress = KLocalHost; 
+	atts->iSessionNameAndID.iServerName.iPort = 443;
+	atts->idomainName.Copy(DomainNameL());
+
+	// try and read DH params, this section may not exist
+	RInteger gen;
+	CleanupClosePushL(gen);
+
+	RInteger prime;
+	CleanupClosePushL(prime);
+
+	// If cipher suite under test is uses PSK (Pre Shared Key)
+	if(UsePsk())
+		{
+		// Populates values for PSK 
+		atts->iPskConfigured = true;
+		atts->iPublicKeyParams->iKeyType = EPsk;
+		atts->iPublicKeyParams->iValue4 = PskIdentity();
+		atts->iPublicKeyParams->iValue5 = PskKey();
+		}
+	else 
+		{
+		// If cipher suite under test is NOT PSK 
+		TRAPD(err, ReadDHParamsL());
+		if (err == KErrNone)
+			{
+			atts->iPublicKeyParams->iKeyType = EDHE;
+
+			// The params are:
+			// 1 - Prime
+			// 2 - Generator
+			// 3 - generator ^ random mod prime
+
+			atts->iPublicKeyParams->iValue1 = Prime().BufferLC();
+			CleanupStack::Pop(atts->iPublicKeyParams->iValue1);
+
+			atts->iPublicKeyParams->iValue2 = Generator().BufferLC();
+			CleanupStack::Pop(atts->iPublicKeyParams->iValue2);
+
+			atts->iPublicKeyParams->iValue3 = KeyPair()->PublicKey().X().BufferLC();
+			CleanupStack::Pop(atts->iPublicKeyParams->iValue3);
+
+			}
+		}
+	CleanupStack::PopAndDestroy(2, &gen); // prime
+	
+
+	if(UseNullCipher())
+		{
+		// Enables null cipher by setting appropiate parameter  
+		atts->iAllowNullCipherSuites = ETrue;
+ 		}
+
+	// No client authentication or dialogs for this test, please
+	atts->iClientAuthenticate = EFalse;
+	atts->iDialogNonAttendedMode = ETrue;    
+
+
+	return EPass;
+	}
+	
+TVerdict CClientKeyExchangeStep::doTestStepL()
+	{
+ 	
+	
+  	INFO_PRINTF1(_L("Calling TLS Provider to fetch cipher suites."));
+	
+	// first we have to retrieve the available cipher suites
+	TInt err = GetCipherSuitesL();
+	
+ 	if (err != KErrNone)
+		{
+		INFO_PRINTF2(_L("Failed! Cannot retrieve supported cipher suites! (Error %d)"), err);
+		SetTestStepResult(EFail);
+		return TestStepResult();
+		}
+	
+	// verifies certificate if is not a PSK cipher suite
+  	if( !UsePsk() )
+		{
+			// we have to verify the server certificate, to supply the certificate
+		// and its parameters to the TLS provider.
+
+		INFO_PRINTF1(_L("Calling TLS Provider to verify server certificate."));
+
+		CX509Certificate* cert = NULL;
+
+		err = VerifyServerCertificateL(cert);
+		delete cert;
+		
+			// make sure it completed sucessfully.
+		if (err != KErrNone)
+			{
+			INFO_PRINTF2(_L("Failed! Server Certificate did not verify correctly! (Error %d)"),
+				err);
+			SetTestStepResult(EFail);
+			return TestStepResult();
+			}
+		
+		}   
+	
+			
+	
+  	INFO_PRINTF1(_L("Creating TLS Session."));	
+	
+	// now, create a session with the parameters set in the preamble
+ 	err = CreateSessionL();
+	
+	// ensure we succeeded
+	if (err != KErrNone)
+		{
+		INFO_PRINTF2(_L("Failed! Create Session failed! (Error %d)"), err);
+		SetTestStepResult(EFail);
+		return TestStepResult();
+		}
+	
+ 	INFO_PRINTF1(_L("Calling TLS session key exchange."));    
+	
+ 	HBufC8* keyExMessage = NULL;
+  	err = ClientKeyExchange(keyExMessage);
+	
+	if (err != KErrNone)
+		{
+		INFO_PRINTF2(_L("Failed! Key exchange failed! (Error %d)"), err);
+		delete keyExMessage;
+		SetTestStepResult(EFail);
+		return TestStepResult();
+		}     
+		
+  	CleanupStack::PushL(keyExMessage);
+	
+	// examine the key exchange message, checking it is as expected.
+ 	ExamineKeyExchangeMessageL(*keyExMessage, CipherSuites()); 
+	
+ 	CleanupStack::PopAndDestroy(keyExMessage);     
+
+	return TestStepResult();
+	}
+
+/***
+ *
+ * Since we can't get the master secret out of the token from the test code,
+ * verification that master secret is calculated correctly is done implicitly
+ * in later steps, via the encrypt and decrypt operation steps.
+ *
+ */
+	
+void CClientKeyExchangeStep::ExamineKeyExchangeMessageL(const TDesC8& aMessage,
+		const RArray<TTLSCipherSuite>& aCiphers)
+	{
+	// Look up the cipher suite we used for this test
+	CTlsCryptoAttributes* atts = Provider()->Attributes();
+	TInt index = KErrNotFound;
+	for(TInt j=0;j<aCiphers.Count();j++)
+		{
+		if(aCiphers[j] == atts->iCurrentCipherSuite)
+			{
+			index = j;
+			break;
+			}
+		}
+	User::LeaveIfError(index);
+	
+	HBufC8* premaster = NULL;
+  	
+  	// Derive premaster secret only for non PSK cipher suits. 
+  	if (!UsePsk())
+		{
+		INFO_PRINTF1(_L("Deriving Master Secret."));
+ 	 	premaster = DerivePreMasterSecretL(aMessage);
+		}
+	
+	// currently, we only support two key exhange algorithms, so that is what we test here
+	switch (aCiphers[index].CipherDetails()->iKeyExAlg)
+		{
+	case ERsa:
+		{
+		
+		// first two bytes should be the version, and the whole message
+		// should be 48 bytes long
+		if ((*premaster)[0] != atts->iNegotiatedProtocol.iMajor ||
+			(*premaster)[1] != atts->iNegotiatedProtocol.iMinor ||
+			premaster->Length() != 48)
+			{
+			INFO_PRINTF1(_L("Failed! RSA key exchange message the wrong length/version!"));
+			SetTestStepResult(EFail);
+			}
+		else
+			{
+			INFO_PRINTF1(_L("Test passed."));
+			SetTestStepResult(EPass);
+			}
+		
+		}
+		break;
+		
+	case EDHE:
+		// there isn't a whole lot we can do to verify the premaster secret
+		// here... just make sure the buffer isn't empty
+		if (aMessage.Length() != 0)
+			{
+			INFO_PRINTF1(_L("Test passed."));
+			SetTestStepResult(EPass);
+			}
+		else
+			{
+			INFO_PRINTF1(_L("Failed! DHE key exchange message the wrong length!"));
+			SetTestStepResult(EFail);
+			}
+		
+		break;
+		
+	case EPsk:
+	    
+	    // for PSK cipher suites it checks content of message 
+	    if (aMessage  != PskIdentity()->Des()  )
+	    	{
+	    	INFO_PRINTF1(_L("Failed! PSK key exchange message with wrong length/content"));
+			SetTestStepResult(EFail);
+	    	}
+	   else 
+	   		{
+	   		INFO_PRINTF1(_L("Test passed."));
+			SetTestStepResult(EPass);
+	    	}
+		break;
+	
+	default:
+		User::Leave(KErrUnknown);
+		break;
+		}
+	
+	if(premaster)	
+		delete premaster;
+	
+	}