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// 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;
namespace Mono.Security.Protocol.Tls.Handshake.Server
{
internal class TlsServerHello : HandshakeMessage
{
#region Private Fields
private int unixTime;
private byte[] random;
#endregion
#region Constructors
public TlsServerHello(Context context)
: base(context, HandshakeType.ServerHello)
{
}
#endregion
#region Methods
public override void Update()
{
base.Update();
TlsStream random = new TlsStream();
// Compute Server Random
random.Write(this.unixTime);
random.Write(this.random);
this.Context.ServerRandom = random.ToArray();
// Compute ClientRandom + ServerRandom
random.Reset();
random.Write(this.Context.ClientRandom);
random.Write(this.Context.ServerRandom);
this.Context.RandomCS = random.ToArray();
// Server Random + Client Random
random.Reset();
random.Write(this.Context.ServerRandom);
random.Write(this.Context.ClientRandom);
this.Context.RandomSC = random.ToArray();
random.Reset();
}
#endregion
#region Protected Methods
protected override void ProcessAsSsl3()
{
this.ProcessAsTls1();
}
protected override void ProcessAsTls1()
{
// Write protocol version
this.Write(this.Context.Protocol);
// Write Unix time
this.unixTime = this.Context.GetUnixTime();
this.Write(this.unixTime);
// Write Random bytes
random = this.Context.GetSecureRandomBytes(28);
this.Write(this.random);
if (this.Context.SessionId == null)
{
this.WriteByte(0);
}
else
{
// Write Session ID length
this.WriteByte((byte)this.Context.SessionId.Length);
// Write Session ID
this.Write(this.Context.SessionId);
}
// Write selected cipher suite
this.Write(this.Context.Negotiating.Cipher.Code);
// Write selected compression method
this.WriteByte((byte)this.Context.CompressionMethod);
}
#endregion
}
}
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