Editing Proxy server (section)

===Tor onion proxy software===
[[File:Vidalia-0.0.11-svn.png|upright=1.8|thumb|alt=Screenshot of computer program showing computer locations on a world map.|The [[Vidalia project|Vidalia]] Tor-network map]]

[[Tor (network)|Tor]] is a system intended to provide [[internet anonymity|online anonymity]].<ref name="Glater">{{cite news |url=https://www.nytimes.com/2006/01/25/technology/techspecial2/25privacy.html?_r=1 |title=Privacy for People Who Don't Show Their Navels |first=Jonathan |last=Glater |newspaper=The New York Times |date=25 January 2006 |access-date=4 August 2011 |archive-date=29 April 2011 |archive-url=https://web.archive.org/web/20110429194810/http://www.nytimes.com/2006/01/25/technology/techspecial2/25privacy.html?_r=1 |url-status=live }}</ref> Tor client software routes Internet traffic through a worldwide volunteer network of servers for concealing a user's computer location or usage from someone conducting [[Computer surveillance#Network surveillance|network surveillance]] or [[Traffic analysis#In computer security|traffic analysis]]. Using Tor makes tracing Internet activity more difficult,<ref name="Glater" /> and is intended to protect users' personal freedom and their online privacy.

"[[Onion routing]]" refers to the layered nature of the encryption service: The original data are encrypted and re-encrypted multiple times, then sent through successive Tor relays, each one of which decrypts a "layer" of encryption before passing the data on to the next relay and ultimately the destination. This reduces the possibility of the original data being unscrambled or understood in transit.<ref name="torproject">{{cite web | last = The Tor Project | title = Tor: anonymity online | url = https://www.torproject.org/ | access-date = 9 January 2011 | archive-date = 9 April 2010 | archive-url = https://web.archive.org/web/20100409141549/https://www.torproject.org/faq | url-status = live }}</ref>