On Fri, Feb 13, 2009 at 07:09:49AM -0800, F. Fox wrote: [snip] > > Drake Wilson wrote: > > > > I'm not sure who proposed reimplementing Tor with UDP... ? > > > (snip) > > It's listed in this document, though I don't know who the original > proposer(s) were: > https://svn.torproject.org/svn/tor/trunk/doc/roadmaps/2008-12-19-roadmap-full.pdf
I can't swear who first thought about it. It was a conscious decision to use TCP for both Tor and earlier versions of onion routing (from NRL, ZKS Freedom chose UDP over TCP) vs. unreliable transport. You can see discussion of some of the issues we were considering several years ago when discussing moving Tor to UDP in https://svn.torproject.org/svn/tor/trunk/doc/design-paper/challenges.pdf There is a recent master's thesis from Joel Reardon at Waterloo and a doctoral dissertation from Camilo Viecco at Indiana that each discuss transport issues for Tor. HTH, Paul
