123 lines
3.1 KiB
C#
123 lines
3.1 KiB
C#
// Transport Security Layer (TLS)
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// Copyright (c) 2003-2004 Carlos Guzman Alvarez
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// Copyright (C) 2006 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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namespace Mono.Security.Protocol.Tls.Handshake.Server
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{
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internal class TlsServerHello : HandshakeMessage
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{
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#region Private Fields
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private int unixTime;
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private byte[] random;
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#endregion
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#region Constructors
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public TlsServerHello(Context context)
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: base(context, HandshakeType.ServerHello)
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{
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}
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#endregion
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#region Methods
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public override void Update()
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{
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base.Update();
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TlsStream random = new TlsStream();
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// Compute Server Random
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random.Write(this.unixTime);
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random.Write(this.random);
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this.Context.ServerRandom = random.ToArray();
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// Compute ClientRandom + ServerRandom
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random.Reset();
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random.Write(this.Context.ClientRandom);
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random.Write(this.Context.ServerRandom);
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this.Context.RandomCS = random.ToArray();
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// Server Random + Client Random
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random.Reset();
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random.Write(this.Context.ServerRandom);
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random.Write(this.Context.ClientRandom);
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this.Context.RandomSC = random.ToArray();
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random.Reset();
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}
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#endregion
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#region Protected Methods
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protected override void ProcessAsSsl3()
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{
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this.ProcessAsTls1();
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}
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protected override void ProcessAsTls1()
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{
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// Write protocol version
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this.Write(this.Context.Protocol);
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// Write Unix time
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this.unixTime = this.Context.GetUnixTime();
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this.Write(this.unixTime);
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// Write Random bytes
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random = this.Context.GetSecureRandomBytes(28);
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this.Write(this.random);
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if (this.Context.SessionId == null)
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{
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this.WriteByte(0);
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}
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else
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{
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// Write Session ID length
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this.WriteByte((byte)this.Context.SessionId.Length);
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// Write Session ID
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this.Write(this.Context.SessionId);
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}
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// Write selected cipher suite
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this.Write(this.Context.Negotiating.Cipher.Code);
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// Write selected compression method
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this.WriteByte((byte)this.Context.CompressionMethod);
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}
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#endregion
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}
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}
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