Re: [tor-dev] Optimising Tor node selection probabilities

2014-10-13 Thread Steven Murdoch
On 11 Oct 2014, at 01:14, Virgil Griffith i...@virgil.gr wrote: Will a longer version of this paper be coming out, particularly one for developers? I don’t have any immediate plans to do so, as my current thinking is it would end up being a queuing theory tutorial with the current paper

Re: [tor-dev] Proposal 227: Include package fingerprints in consensus documents

2014-02-20 Thread Steven Murdoch
Hi Nick, This sounds related to an old idea I presented at PETS 2006: http://www.lightbluetouchpaper.org/2006/07/13/protecting-software-distribution-with-a-cryptographic-build-process/ However there's an important difference. The proposal below is how the directory authorities advertise good

Re: [tor-dev] Status report - HTTP pluggable transport

2013-06-30 Thread Steven Murdoch
Hi Chang, Thanks for the update. BOSH certainly looks like a promising basis, though of course it makes no attempt at obfuscation or scanning resistance. I've added this to the design document: https://github.com/sjmurdoch/http-transport/blob/master/design.md I was thinking about this being a

Re: [tor-dev] Building better pluggable transports - GSoC 2013 project

2013-06-11 Thread Steven Murdoch
Hi Chang, On 29 May 2013, at 06:22, Chang Lan changl...@gmail.com wrote: Given that ScrambleSuite is being deployed, improving protocol obfuscation will be my main focus. HTTP impersonation is really useful, since there are numerous HTTP proxy outside the censored region, while the number of

Re: [tor-dev] Building better pluggable transports - GSoC 2013 project

2013-06-11 Thread Steven Murdoch
On 11 Jun 2013, at 12:49, Steven Murdoch steven.murd...@cl.cam.ac.uk wrote: There certainly are quite a few open questions, so it would be good to start planning early. Implementing HTTP is a deceptively difficult project. I've started a design document https://github.com/sjmurdoch/http

Re: [tor-dev] Gsoc 2012 Project Proposal.. Feedback please!!

2012-04-03 Thread Steven Murdoch
Hi, Thanks for considering this project and posting your proposal to the list. On 1 Apr 2012, at 11:24, drake01 wrote: After initial shortlisting of transport protocols to be integrated with tor, I am left with sctp and udp. Do you mean utp (or µtp with appropriate mail client :-)) So if

Re: [tor-dev] First test report

2012-02-12 Thread Steven Murdoch
On 12 Feb 2012, at 03:28, Nick Mathewson wrote: 2. In comparison assertions, the general convention seems to be to place the expected value first (test_eq(0, functioncall(...)) rather than test_eq(functioncall(...), 0)). I have modified the assertions not following that convention, so they all

Re: [tor-dev] Size issues with Orbot statically linking OpenSSL

2012-01-15 Thread Steven Murdoch
On 15 Jan 2012, at 20:47, Nick Mathewson wrote: Another thing to try: recent gccs and their toolchains have a trick where they can stick every function in its own segment, then tell the linker to dump the unused ones. I believe it's called gc-segments or something. I have no idea if it

Re: [tor-dev] Proposal 176: Proposed version-3 link handshake for Tor

2011-10-04 Thread Steven Murdoch
From a first look at 176 it looks good. Some comments and suggestions inline: Terminological note: I use client below to mean the Tor instance (a client or a bridge or a relay) that initiates a TLS connection, and server to mean the Tor instance (a bridge or a relay) that accepts