BitTorrent protocol encryption: Difference between revisions

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===Development of MSE/PE===

In late January 2006 the developers of [[Vuze]] (then known as Azureus) decided to design and simultaneously implement a new, open protocol obfuscation method, called message stream encryption (MSE). It was included in Azureus CVS snapshot 2307-B29 on 19 January 2006.<ref>{{cite web|url=httphttps://sourceforge.net/mailarchive/forum.php?thread_name=200601200753.k0K7rYp0016440%40aelitis.com&forum_name=azureus-commitlog|title=[Azureus-commitlog] CVS Snapshot Azureus2307-B29.jar has been released !|publisher=Sourceforge.net|date=2006-01-19|access-date=2013-04-08|archive-date=2019-09-24|archive-url=https://web.archive.org/web/20190924171204/https://sourceforge.net/p/azureus/mailman/azureus-commitlog/thread/[e-mail]/|url-status=live}}</ref>

This first draft was heavily criticized since it lacked several key features. After negotiations between different BitTorrent developers, a new proposal was written and then implemented into the [[Vuze|Azureus]] and [[μTorrent]] betas within days. In μTorrent, the new protocol was called protocol encryption (PE).

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* [[rTorrent]] supports MSE/PE as of rTorrent-0.7.0.<ref>{{cite web |url=http://rakshasa.no/pipermail/libtorrent-devel/2006-December/000982.html |title=[Libtorrent-devel] LibTorrent 0.11.0 and rTorrent 0.7.0 released |publisher=Rakshasa.no mail archive |date=2006-12-13 |access-date=2007-06-10 |archive-url=https://web.archive.org/web/20070502055625/http://rakshasa.no/pipermail/libtorrent-devel/2006-December/000982.html |archive-date=2007-05-02 |url-status=dead }}</ref>

* [[Transmission (BitTorrent client)|Transmission]] supports MSE/PE as of Transmission-0.90.<ref>{{cite web|url=http://transmission.m0k.org/forum/viewtopic.php?t=2631|title=Transmission 0.90 Released! |publisher=Transmission.m0k.org forum|date=2007-10-24|archive-url=https://web.archive.org/web/20071027022525/http://transmission.m0k.org/forum/viewtopic.php?t=2631|archive-date=2007-10-27}}</ref>

* [[Vuze]] (formerly Azureus) supports the final spec since 25 January 2006 (CVS snapshot 2307-B33).<ref>{{cite web|url=httphttps://sourceforge.net/mailarchive/forum.php?thread_name=200601252228.k0PMSnp0024117%40aelitis.com&forum_name=azureus-commitlog|title=[Azureus-commitlog] CVS Snapshot Azureus2307-B33.jar has been released !|publisher=Sourceforge.net|date=2006-01-25|access-date=2013-04-08|archive-date=2019-09-24|archive-url=https://web.archive.org/web/20190924171211/https://sourceforge.net/p/azureus/mailman/azureus-commitlog/thread/[e-mail]/|url-status=live}}</ref> Azureus version 2.4.0.0 was released 10 February 2006, and was the first stable version of a client to support MSE/PE. However, glitches in Azureus' implementation resulted in improperly encrypted pieces that failed hash checking. The glitches were rectified as of version 2.4.0.2.<ref>{{cite web|url=http://azureus.sourceforge.net/changelog.php?version=2.4.0.2|title=Azureus : Java BitTorrent Client - Changelog|publisher=Azureus.sourceforge.net|access-date=2006-03-20|archive-date=2006-03-20|archive-url=https://web.archive.org/web/20060320195041/http://azureus.sourceforge.net/changelog.php?version=2.4.0.2|url-status=live}}</ref>

* [[μTorrent]] premiered MSE/PE 4 days after Azureus with beta 1.4.1 build 407.<ref>{{cite web|url=http://forum.utorrent.com/viewtopic.php?id=5384|title=μTorrent 1.4.2 beta 435|publisher=uTorrent Announcements|date=2006-01-29|url-status=dead|archive-url=https://web.archive.org/web/20060514085453/http://forum.utorrent.com/viewtopic.php?id=5384|archive-date=2006-05-14}}</ref> μTorrent version 1.5 (build 436) was released on 7 March 2006; it was the first stable version of μTorrent with PE.<ref>[http://forum.utorrent.com/viewtopic.php?id=7199 "μTorrent 1.5 released"] {{webarchive|url=https://web.archive.org/web/20130529090641/http://forum.utorrent.com/viewtopic.php?id=7199 |date=2013-05-29 }}. uTorrent Announcements. 2006-03-07.</ref>

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|date=9 Feb 2009

|title=Detecting Forged TCP Reset Packets

|authorsauthor1=Nicholas Weaver, |author2=R. Sommer, |author3=Vern Paxson

|conference=NDSS Symposium 2009

}}</ref>

}}