[tor-dev] Trying to connect to a OR

[Steven Retz <SJR3t2@xxxxxxxxxxxx>]

Everyone,

 

I have been toying with doing something with tor for a long time.  I decided to start doing something with it.  I wrote this quick POC in C# to connect to a tor node I got from the cache file.  I tried to follow the specs in https://gitweb.torproject.org/torspec.git?a=blob_plain;hb=HEAD;f=tor-spec.txt section 2 connections, but apparently I’m doing something wrong.  I’m hoping someone can help me out.

 

Steven

using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.Net.Security;
using System.Security.Cryptography.X509Certificates;
using System.Security.Authentication;

namespace TorTests
{
    class Program
    {
        private const string host = "81.223.215.102";
		private const int port = 443;

        static void Main(string[] args)
        {
            using (var socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp))
            {
                socket.Connect(host, port);
                
                using (var networkStream = new NetworkStream(socket))
                using (var ssl = new SslStream(networkStream, false, CertificateValidation))
                {
                    var certificates = GetCollection();
                    ssl.AuthenticateAsClient(host, certificates, SslProtocols.Ssl3, false);
                }
            }
        }

        private static X509CertificateCollection GetCollection()
        {
            var collection = new X509CertificateCollection();

            var certificate = new X509Certificate("TestServer.cer");

            collection.Add(certificate);

            return collection;
        }

        private static bool CertificateValidation(Object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
        {
            return true;
        }
    }
}

Attachment: TestServer.cer
Description: application/x509-ca-cert

Attachment: makecerts.rename2bat
Description: Binary data

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