niko
95 lines
3.3 KiB
C#
95 lines
3.3 KiB
C#
using System;
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namespace Mono.Security.Protocol.Tls.Handshake.Client
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{
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// Token: 0x020000AF RID: 175
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internal class TlsServerHello : HandshakeMessage
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{
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// Token: 0x0600068C RID: 1676 RVA: 0x0002498C File Offset: 0x00022B8C
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public TlsServerHello(Context context, byte[] buffer)
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: base(context, HandshakeType.ServerHello, buffer)
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{
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}
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// Token: 0x0600068D RID: 1677 RVA: 0x00024998 File Offset: 0x00022B98
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public override void Update()
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{
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base.Update();
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base.Context.SessionId = this.sessionId;
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base.Context.ServerRandom = this.random;
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base.Context.Negotiating.Cipher = this.cipherSuite;
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base.Context.CompressionMethod = this.compressionMethod;
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base.Context.ProtocolNegotiated = true;
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int num = base.Context.ClientRandom.Length;
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int num2 = base.Context.ServerRandom.Length;
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int num3 = num + num2;
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byte[] array = new byte[num3];
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Buffer.BlockCopy(base.Context.ClientRandom, 0, array, 0, num);
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Buffer.BlockCopy(base.Context.ServerRandom, 0, array, num, num2);
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base.Context.RandomCS = array;
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byte[] array2 = new byte[num3];
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Buffer.BlockCopy(base.Context.ServerRandom, 0, array2, 0, num2);
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Buffer.BlockCopy(base.Context.ClientRandom, 0, array2, num2, num);
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base.Context.RandomSC = array2;
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}
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// Token: 0x0600068E RID: 1678 RVA: 0x00024A9C File Offset: 0x00022C9C
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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: 0x0600068F RID: 1679 RVA: 0x00024AA4 File Offset: 0x00022CA4
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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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int num = (int)base.ReadByte();
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if (num > 0)
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{
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this.sessionId = base.ReadBytes(num);
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ClientSessionCache.Add(base.Context.ClientSettings.TargetHost, this.sessionId);
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base.Context.AbbreviatedHandshake = HandshakeMessage.Compare(this.sessionId, base.Context.SessionId);
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}
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else
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{
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base.Context.AbbreviatedHandshake = false;
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}
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short num2 = base.ReadInt16();
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if (base.Context.SupportedCiphers.IndexOf(num2) == -1)
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{
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throw new TlsException(AlertDescription.InsuficientSecurity, "Invalid cipher suite received from server");
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}
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this.cipherSuite = base.Context.SupportedCiphers[num2];
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this.compressionMethod = (SecurityCompressionType)base.ReadByte();
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}
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// Token: 0x06000690 RID: 1680 RVA: 0x00024B84 File Offset: 0x00022D84
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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: 0x04000323 RID: 803
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private SecurityCompressionType compressionMethod;
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// Token: 0x04000324 RID: 804
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private byte[] random;
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// Token: 0x04000325 RID: 805
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private byte[] sessionId;
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// Token: 0x04000326 RID: 806
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private CipherSuite cipherSuite;
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}
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}
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