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87 lines
2.7 KiB
C#
87 lines
2.7 KiB
C#
// Transport Security Layer (TLS)
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// Copyright (c) 2003-2004 Carlos Guzman Alvarez
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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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using System.Security.Cryptography.X509Certificates;
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using System.Security.Cryptography;
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using Mono.Security.Cryptography;
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namespace Mono.Security.Protocol.Tls.Handshake.Server
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{
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internal class TlsClientCertificateVerify : HandshakeMessage
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{
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#region Constructors
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public TlsClientCertificateVerify(Context context, byte[] buffer)
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: base(context, HandshakeType.CertificateVerify, buffer)
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{
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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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ServerContext context = (ServerContext)this.Context;
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int length = this.ReadInt16 ();
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byte[] signature = this.ReadBytes (length);
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// Verify signature
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SslHandshakeHash hash = new SslHandshakeHash(context.MasterSecret);
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hash.TransformFinalBlock(
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context.HandshakeMessages.ToArray(),
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0,
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(int)context.HandshakeMessages.Length);
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if (!hash.VerifySignature(context.ClientSettings.CertificateRSA, signature))
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{
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throw new TlsException(AlertDescription.HandshakeFailiure, "Handshake Failure.");
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}
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}
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protected override void ProcessAsTls1()
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{
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ServerContext context = (ServerContext)this.Context;
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int length = this.ReadInt16 ();
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byte[] signature = this.ReadBytes (length);
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// Verify signature
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MD5SHA1 hash = new MD5SHA1();
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hash.ComputeHash(
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context.HandshakeMessages.ToArray(),
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0,
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(int)context.HandshakeMessages.Length);
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if (!hash.VerifySignature(context.ClientSettings.CertificateRSA, signature))
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{
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throw new TlsException (AlertDescription.HandshakeFailiure, "Handshake Failure.");
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}
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}
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#endregion
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}
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}
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