-/* Transport Security Layer (TLS)
- * Copyright (c) 2003 Carlos Guzmán Álvarez
- *
- * Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without restriction,
- * including without limitation the rights to use, copy, modify, merge,
- * publish, distribute, sublicense, and/or sell copies of the Software,
- * and to permit persons to whom the Software is furnished to do so,
- * subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
+// Transport Security Layer (TLS)
+// Copyright (c) 2003-2004 Carlos Guzman Alvarez
+// Copyright (C) 2006 Novell, Inc (http://www.novell.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
using System;
-using System.IO;
using System.Security.Cryptography;
+using Mono.Security.Cryptography;
+
namespace Mono.Security.Protocol.Tls.Handshake.Client
{
- internal class TlsClientKeyExchange : TlsHandshakeMessage
+ internal class TlsClientKeyExchange : HandshakeMessage
{
- #region CONSTRUCTORS
+ #region Constructors
- public TlsClientKeyExchange (TlsSession session) :
- base(session,
- TlsHandshakeType.ClientKeyExchange,
- TlsContentType.Handshake)
+ public TlsClientKeyExchange (Context context) :
+ base(context, HandshakeType.ClientKeyExchange)
{
}
#endregion
- #region PROTECTED_METHODS
+ #region Protected Methods
protected override void ProcessAsSsl3()
{
- throw new NotSupportedException();
+ // a large chunk of code is common to both SSL3 and TLS1
+ // SSL3 doesn't send the length of the buffer
+ ProcessCommon (false);
}
protected override void ProcessAsTls1()
+ {
+ // a large chunk of code is common to both SSL3 and TLS1
+ // TLS1 does send the length of the buffer
+ ProcessCommon (true);
+ }
+
+ public void ProcessCommon (bool sendLength)
{
// Compute pre master secret
- byte[] preMasterSecret = Session.Context.Cipher.CreatePremasterSecret();
+ byte[] preMasterSecret = this.Context.Negotiating.Cipher.CreatePremasterSecret ();
// Create a new RSA key
- RSACryptoServiceProvider rsa = null;
- if (Session.Context.ServerSettings.ServerKeyExchange)
+ RSA rsa = null;
+ if (this.Context.ServerSettings.ServerKeyExchange)
{
- rsa = Session.Context.Cipher.CreateRSA(Session.Context.ServerSettings.RsaParameters);
+ // this is the case for "exportable" ciphers
+ rsa = new RSAManaged ();
+ rsa.ImportParameters (this.Context.ServerSettings.RsaParameters);
}
else
{
- rsa = Session.Context.Cipher.CreateRSA(Session.Context.ServerSettings.ServerCertificates[0]);
- }
-
+ rsa = this.Context.ServerSettings.CertificateRSA;
+ }
+
// Encrypt premaster_sercret
- RSAPKCS1KeyExchangeFormatter formatter = new RSAPKCS1KeyExchangeFormatter(rsa);
+ RSAPKCS1KeyExchangeFormatter formatter = new RSAPKCS1KeyExchangeFormatter (rsa);
// Write the preMasterSecret encrypted
- byte[] buffer = formatter.CreateKeyExchange(preMasterSecret);
- Write((short)buffer.Length);
- Write(buffer);
+ byte[] buffer = formatter.CreateKeyExchange (preMasterSecret);
+ if (sendLength)
+ this.Write ((short) buffer.Length);
+ this.Write (buffer);
// Create master secret
- Session.Context.Cipher.CreateMasterSecret(preMasterSecret);
+ this.Context.Negotiating.Cipher.ComputeMasterSecret (preMasterSecret);
// Create keys
- Session.Context.Cipher.CreateKeys();
+ this.Context.Negotiating.Cipher.ComputeKeys ();
// Clear resources
- rsa.Clear();
+ rsa.Clear ();
}
#endregion
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