XXX - Add a simple example capture file to the SampleCaptures page and link from here (see below). (XXX add links to preference settings affecting how Tor is dissected). Also add info of additional Wireshark features where appropriate, like special statistics of this protocol.

The Tor dissector is (fully functional, partially functional, not existing, … whatever the current state is). Tor commonly uses ports 90 for network traffic and directory information. The well known TLS port for Tor traffic is 443.

TCP: Typically, Tor uses TLS over TCP as its transport protocol.

XXX - add a brief description of Tor history Protocol dependencies

Traffic flowing down the circuit is sent in fixed-size `cells*, which are unwrapped by a symmetric key at each node (like the layers of an onion) and relayed downstream. Clients choose a path through the network and build a ` circuit*, in which each node (or onion router* or OR*) in the path knows its predecessor and successor, but no other nodes in the circuit. – The articles in the Vulnerabilities and Hackers section is devoted to the topic of software vulnerabilities and how cybercriminals exploit them, as well as legislation and hackers in the broad sense of the word.Tor is a distributed overlay network designed to anonymize low-latency TCP-based applications such as web browsing, secure shell, and instant messaging.

– In the Spam and Phishing section, you will learn about phishing and spam mailings, how their creators earn money from them, and how this type of threat has evolved since the 1990s to the present day. – The Detectable Objects section gives detailed information about malicious and potentially dangerous programs that we protect users against every single day all around the world, as well as advice on what to do in case of infection. The Knowledge Base now has three main sections:

In the Knowledge Base, you will find various articles about common threats, a general classification of malware and unwanted messages, and a brief historical overview of the evolution of these and many other threats.

What is tor the onion router