This less known Tor mode is called Tor hidden services, you can read more about it on the above link. There are no exit nodes involved in this mode, at no point other than your and your buddies own computer will the traffic ever leave the Tor network. This means all TorChat traffic is end2end encrypted.

Upon connection another layer of encryption is established reaching through from one client to the other, building one uninterrupted encrypted tunnel through all 6 nodes between the two end points. Both clients build a normal 3 node circuit from each end to some random tor node in the middle to 'meet' there and connect their circuits with each other. However, there exists another and less commonly known mode of operation in which two Tor clients can initiate a fully encrypted peer-to-peer connection between each other that will not leave the Tor network at any point! This is what TorChat is using. This is the origin of the above mentioned 'Tor provides no encryption' and it is undoubtedly true for this most widely known and practiced application of Tor and users should understand it. The most commonly known usage of Tor is to use it as an anonymizer for traffic between the anonymous user and a publicly available service in the Internet and while the traffic will travel encrypted through the Tor network it MUST at some point leave the Tor network and enter the unencrypted internet to reach its final destination. Whenever I mention Tor and encryption in the same sentence the immediate reflex response of many people is: 'But Tor provides no encryption!' This statement is true for most applications but not for all. There are some misunderstandings floating around regarding Tor and encryption. You can binary compare the tor.exe with the official one to verify this or replace it with your own version of tor.exe if you like.Īll TorChat traffic is encrypted end-to-end.

The Tor binary which is bundled with TorChat is taken from the official Tor-0.2.2.34 installer.

Windows firewall blocking torchat