tor-project

tor-project@lists.torproject.org

April 2021

10 participants
21 discussions

hackweek starting this Monday at 15UTC!
by Gaba 01 Apr '21

01 Apr '21

Hi! Next week we are hacking on small projects all week! There are 10 proposals so far from visualizing metrics data to adding onion services v3 support to arti. To kickoff the week we will have an opening session on **Monday March 29th at 15UTC**. Projects will be presented at that session and teams will be created. The link for the opening session room will be posted on Monday. We will close the hackweek on Friday with a demo session where teams will be able to show the work done during the week. You can take a look at the proposed projects in https://gitlab.torproject.org/tpo/community/hackweek 1 Torify signal-cli with torsocks Summary: Work through blocking bugs for getting signal-cli working with torsocks. Interesting because signal is being blocked in some locales. Lead by jnewsome and/or dgoulet 2 Prometheus alerts for anti-censorship metrics Summary: We have BridgeDB exporting prometheus metrics so far, and we could implement this for Snowflake. It would be great if we could get alerts when usage changes to notify us of possible censorship events. Somewhat related, it would also be nice to get alerts when default bridge usage drops off suddenly or directly connecting Tor users from different regions. Lead by cohosh and anarcat 3 Prototype network-namespace-based torsocks Summary: Use network namespaces (or maybe something else?) to run target software in an environment where it can't talk to the real network; it can only talk to the tor socks port and/or some "shim" adapter. Might be able to remove or lessen dependence on LD_PRELOAD (which isn't available everywhere, can be "escaped", and can be a bit fragile). If we continued to use LD_PRELOAD could at least be used to prevent accidental connections to the real network. Lead by jnewsome and/or dgoulet 4 Add support for UDP sockets over onion services, possibly with enabling support for WebRTC in Tor Browser Lead by sysrqb 5 Visualize Tor metrics's data in ways that it can be useful for community Summary: The goal is to have a dashboard with Tor usage per country in a way that is easy to see big changes happening. Right now we need to select each country to see the Tor usage. It would be good to have a way to see all the countries and the onews where usage is increasing (via bridge and direct connection) Lead by gus and gaba 6 Prototype Rust+Arti-based HTTP frontend cache for directory authorities Summary: Directory authorities are under a lot of unnecessary load from excessive download requests. We have other projects in mind to reduce those requests, but one workaround is to add a frontend cache in front of one or more of the authorities' HTTP ports. With this project we'll write a Rust server use Arti's download and validation code to fetch directory information from an authority, and expose that information via a set of HTTP requests. With luck, our code will be reuseable in the future when relays or authorities are rewritten in Rust. Lead by nickm 7 Onionshare download accelerator Summary: Journalists are requesting ways to download large files from onion services faster. This is actually possible already with HTTP, without any Tor client modifications. By splitting up requests into 250k chunks using HTTP range requests, and using SOCKS username and password to allocate these requests properly onto different circuits, we can hit ~6 megabytes/sec per guard (so ~12 megabytes/sec with 2 gaurds), with a custom HTTP download acelerator. This download accelerator could be provided as part of onionshare. For more details, see https://github.com/micahflee/onionshare/issues/1295. Lead by mike 8 Vanguards doc updates, bugfixes, packages for onionshare and/or Tor Browser Summary: The vanguards Tor control port addon provides defense against Guard discovery attacks, as well as other attacks against onion services, onion clients, and even Tor Browser exit traffic. Vanguards is in need of some doc updates, bugfixes, and we could even package it for one of onionshare or Tor Browser. Packaging it with Onionshare also helps improve the security properties of the above download accelerator item. See the bugtracker for specific items: https://github.com/mikeperry-tor/vanguards/issues Lead by mike 9 Circuit Padding Simulator Summary: The Tor circuit padding framework is under active use by researchers to improve padding defenses against website traffic fingerprinting, and onion service circuit fingerprinting. The simulator is in need of update to the latest Tor release, as well as in need of performance improvements, and a more accurate way to deal with time-based features. See https://github.com/pylls/circpad-sim/blob/master/README.md Lead by mike 10 Onion service v3 support for arti Summary: arti currently does not do v3 onion services. Let's do some solid work towards making that possible. Lead by asn

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