[Masque] MASQUE and Tor "pluggable transports"
Philipp Winter <phw@torproject.org> Tue, 06 August 2019 16:20 UTC
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Date: Tue, 06 Aug 2019 09:20:44 -0700
From: Philipp Winter <phw@torproject.org>
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Subject: [Masque] MASQUE and Tor "pluggable transports"
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Hi everyone, I read the most recent MASQUE draft that I found here: <https://davidschinazi.github.io/masque-drafts/draft-schinazi-masque.html> It's great work, thanks for this! Section 2.4 suggests onion routing on top of MASQUE servers to add anonymity. There may be an easier way to accomplish this: one could turn MASQUE into a "pluggable transport" protocol. Originally developed by Tor, pluggable transports are a traffic obfuscation mechanism that puts a proxy in front of both a client and a server. These proxies disguise the traffic that's exchanged between client and server as shown in the following diagram: <https://gitweb.torproject.org/torspec.git/tree/pt-spec.txt#n61> Turning MASQUE into a pluggable transport would make it easy-ish to integrate for systems that support the pluggable transport specification including Tor, Psiphon, and Lantern. MASQUE would also benefit from security properties offered by its "host" system -- in Tor's case this would be anonymity. Practically speaking, a user would start Tor Browser with the MASQUE pluggable transport (which would be included in Tor Browser). A rendez-vous mechanism would inform the user about MASQUE servers that she could use. Once a MASQUE server receives the user's HTTPS data, the server extracts the content and shoves it into a Tor bridge that's running on the same (or potentially a different) machine. All of this could be implemented as part of a new module for the obfs4proxy system, which is the pluggable transport proxy that the Tor project uses: <https://gitlab.com/yawning/obfs4> Is there interest in pursuing support for pluggable transports? Cheers, Philipp
- [Masque] MASQUE and Tor "pluggable transports" Philipp Winter
- Re: [Masque] MASQUE and Tor "pluggable transports" Ben Schwartz
- Re: [Masque] MASQUE and Tor "pluggable transports" Shivan Kaul Sahib
- Re: [Masque] MASQUE and Tor "pluggable transports" David Schinazi
- Re: [Masque] MASQUE and Tor "pluggable transports" Philipp Winter
- Re: [Masque] MASQUE and Tor "pluggable transports" David Schinazi
- Re: [Masque] MASQUE and Tor "pluggable transports" Martin Thomson
- Re: [Masque] MASQUE and Tor "pluggable transports" David Schinazi
- Re: [Masque] MASQUE and Tor "pluggable transports" Martin Thomson
- Re: [Masque] MASQUE and Tor "pluggable transports" David Schinazi