1 /* Transport Security Layer (TLS)
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2 * Copyright (c) 2003 Carlos Guzmán Álvarez
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4 * Permission is hereby granted, free of charge, to any person
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5 * obtaining a copy of this software and associated documentation
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6 * files (the "Software"), to deal in the Software without restriction,
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7 * including without limitation the rights to use, copy, modify, merge,
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8 * publish, distribute, sublicense, and/or sell copies of the Software,
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9 * and to permit persons to whom the Software is furnished to do so,
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10 * subject to the following conditions:
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12 * The above copyright notice and this permission notice shall be included
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13 * in all copies or substantial portions of the Software.
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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17 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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22 * DEALINGS IN THE SOFTWARE.
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26 using System.Security.Cryptography;
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28 using Mono.Security.Cryptography;
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30 namespace Mono.Security.Protocol.Tls.Handshake.Client
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32 internal class TlsClientFinished : TlsHandshakeMessage
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34 #region CONSTRUCTORS
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36 public TlsClientFinished(TlsSession session)
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37 : base(session, TlsHandshakeType.Finished, TlsContentType.Handshake)
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45 public override void UpdateSession()
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47 base.UpdateSession();
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53 #region PROTECTED_METHODS
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55 protected override void ProcessAsSsl3()
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57 // Compute handshake messages hashes
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58 HashAlgorithm hash = new TlsSslHandshakeHash(this.Session.Context.MasterSecret);
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60 TlsStream data = new TlsStream();
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61 data.Write(this.Session.Context.HandshakeMessages.ToArray());
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62 data.Write((int)0x434C4E54);
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64 hash.TransformFinalBlock(data.ToArray(), 0, (int)data.Length);
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66 this.Write(hash.Hash);
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71 protected override void ProcessAsTls1()
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73 // Compute handshake messages hash
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74 HashAlgorithm hash = new MD5SHA1CryptoServiceProvider();
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76 Session.Context.HandshakeMessages.ToArray(),
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78 (int)Session.Context.HandshakeMessages.Length);
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81 Write(Session.Context.Cipher.PRF(Session.Context.MasterSecret, "client finished", hash.Hash, 12));
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