niko
101 lines
3.1 KiB
C#
101 lines
3.1 KiB
C#
using System;
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namespace Mono.Security.Protocol.Tls.Handshake.Server
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{
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// Token: 0x020000B5 RID: 181
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internal class TlsClientHello : HandshakeMessage
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{
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// Token: 0x060006A5 RID: 1701 RVA: 0x000254A0 File Offset: 0x000236A0
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public TlsClientHello(Context context, byte[] buffer)
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: base(context, HandshakeType.ClientHello, buffer)
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{
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}
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// Token: 0x060006A6 RID: 1702 RVA: 0x000254AC File Offset: 0x000236AC
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public override void Update()
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{
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base.Update();
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this.selectCipherSuite();
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this.selectCompressionMethod();
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base.Context.SessionId = this.sessionId;
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base.Context.ClientRandom = this.random;
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base.Context.ProtocolNegotiated = true;
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}
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// Token: 0x060006A7 RID: 1703 RVA: 0x000254FC File Offset: 0x000236FC
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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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// Token: 0x060006A8 RID: 1704 RVA: 0x00025504 File Offset: 0x00023704
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protected override void ProcessAsTls1()
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{
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this.processProtocol(base.ReadInt16());
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this.random = base.ReadBytes(32);
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this.sessionId = base.ReadBytes((int)base.ReadByte());
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this.cipherSuites = new short[(int)(base.ReadInt16() / 2)];
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for (int i = 0; i < this.cipherSuites.Length; i++)
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{
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this.cipherSuites[i] = base.ReadInt16();
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}
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this.compressionMethods = new byte[(int)base.ReadByte()];
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for (int j = 0; j < this.compressionMethods.Length; j++)
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{
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this.compressionMethods[j] = base.ReadByte();
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}
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}
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// Token: 0x060006A9 RID: 1705 RVA: 0x000255B0 File Offset: 0x000237B0
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private void processProtocol(short protocol)
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{
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SecurityProtocolType securityProtocolType = base.Context.DecodeProtocolCode(protocol);
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if ((securityProtocolType & base.Context.SecurityProtocolFlags) == securityProtocolType || (base.Context.SecurityProtocolFlags & SecurityProtocolType.Default) == SecurityProtocolType.Default)
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{
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base.Context.SecurityProtocol = securityProtocolType;
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base.Context.SupportedCiphers.Clear();
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base.Context.SupportedCiphers = null;
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base.Context.SupportedCiphers = CipherSuiteFactory.GetSupportedCiphers(securityProtocolType);
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return;
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}
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throw new TlsException(AlertDescription.ProtocolVersion, "Incorrect protocol version received from server");
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}
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// Token: 0x060006AA RID: 1706 RVA: 0x00025644 File Offset: 0x00023844
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private void selectCipherSuite()
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{
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for (int i = 0; i < this.cipherSuites.Length; i++)
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{
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int num;
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if ((num = base.Context.SupportedCiphers.IndexOf(this.cipherSuites[i])) != -1)
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{
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base.Context.Negotiating.Cipher = base.Context.SupportedCiphers[num];
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break;
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}
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}
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if (base.Context.Negotiating.Cipher == null)
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{
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throw new TlsException(AlertDescription.InsuficientSecurity, "Insuficient Security");
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}
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}
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// Token: 0x060006AB RID: 1707 RVA: 0x000256D4 File Offset: 0x000238D4
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private void selectCompressionMethod()
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{
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base.Context.CompressionMethod = SecurityCompressionType.None;
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}
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// Token: 0x0400032A RID: 810
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private byte[] random;
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// Token: 0x0400032B RID: 811
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private byte[] sessionId;
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// Token: 0x0400032C RID: 812
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private short[] cipherSuites;
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// Token: 0x0400032D RID: 813
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private byte[] compressionMethods;
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}
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}
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