[tor-project] Anti-censorship team meeting notes, 2023-11-09

onyinyang onyinyang at torproject.org
Thu Nov 9 17:35:44 UTC 2023


Hey everyone!

Here are our meeting logs:
http://meetbot.debian.net/tor-meeting/2023/tor-meeting.2023-11-09-16.00.html

And our meeting pad:

Anti-censorship work meeting pad
--------------------------------
  Anti-censorship
--------------------------------

Next meeting: Thursday, Nov 16 16:00 UTC
Facilitator: meskio

Weekly meetings, every Thursday at 16:00 UTC, in #tor-meeting at OFTC
(channel is logged while meetings are in progress)

This week's Facilitator: onyinyang


== Goal of this meeting ==

Weekly check-in about the status of anti-censorship work at Tor.
Coordinate collaboration between people/teams on anti-censorship at the
Tor Project and Tor community.


== Links to Useful documents ==

          * Our anti-censorship roadmap:
                  * 
Roadmap:https://gitlab.torproject.org/groups/tpo/anti-censorship/-/boards
          * The anti-censorship team's wiki page:
*https://gitlab.torproject.org/tpo/anti-censorship/team/-/wikis/home
          * Past meeting notes can be found at:
                  * https://lists.torproject.org/pipermail/tor-project/
          * Tickets that need reviews: from sponsors, we are working on:
                  * All needs review tickets:
*https://gitlab.torproject.org/groups/tpo/anti-censorship/-/merge_requests?scope=all&utf8=%E2%9C%93&state=opened&assignee_id=None
                  * Sponsor 96 <-- meskio, shell, onyinyang, cohosh
*https://gitlab.torproject.org/groups/tpo/-/milestones/24
                  * Sponsor 150 <-- meskio working on it
*https://gitlab.torproject.org/groups/tpo/anti-censorship/-/issues/?label_name%5B%5D=Sponsor%20150


== Announcements ==



== Discussion ==

     * azure will close domain fronting January 8
         * 
https://gitlab.torproject.org/tpo/anti-censorship/team/-/issues/33#note_2963884

     * Maybe, move to use a private pad?
         * we can use the 'read-only' link from the riseup pads as a 
public link and share the editing link with the people that participates 
on the meetings.
         * meskio will set up for next week.

== Actions ==



== Interesting links ==

     * 
https://forum.torproject.org/t/snowflake-daily-operations-october-2023-update/10106
     * FOCI & PETS 2023 videos
         * Running a high-performance pluggable transports Tor bridge 
https://www.youtube.com/watch?v=UkUQsAJB-bg&list=PLWSQygNuIsPc8bOJ2szOblMK4i6T79S1m&index=5
         * Lox: Protecting the Social Graph in Bridge Distribution 
https://www.youtube.com/watch?v=hT2PkFs-61A&list=PLWSQygNuIsPeSo_mDoX9MPrVDZEaq_umi&index=19
         * others https://github.com/net4people/bbs/issues/307

== Reading group ==

     * We will discuss "On Precisely Detecting Censorship Circumvention 
in Real-World Networks" on November 9
         * 
https://www.robgjansen.com/publications/precisedetect-ndss2024.html
         * Questions to ask and goals to have:
             * What aspects of the paper are questionable?
             * Are there immediate actions we can take based on this work?
             * Are there long-term actions we can take based on this work?
             * Is there future work that we want to call out in hopes 
that others will pick it up?


== Updates ==

Name:
         This week:
             - What you worked on this week.
         Next week:
             - What you are planning to work on next week.
         Help with:
             - Something you need help with.

cecylia (cohosh): 2023-11-09
     Last week:
         - conjure bridge maintenance
         - caught a bug in safelog library
             - 
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40306
         - caught problem with domain front in conjure
             - 
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/conjure/-/issues/38
     This week:
         - lox tor browser UX integration
         - lox distributor testing
         - look into alternative domain fronting providers
     Needs help with:

dcf: 2023-11-09
     Last week:
         - revised encapsulation.ReadData redesign to return an error in 
the case of a short buffer 
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/154#note_2962562
         - security upgrade to tor 0.4.8.8 on snowflake bridges 
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40305
         - sent emails to make contacts for uTLS-like fingerprint 
obfuscation in pion/dtls
     Next week:
         - open issue to have snowflake-client log whenever KCPInErrors 
is nonzero 
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40262#note_2886018
             - parent: 
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40267
             - open issue to disable /debug endpoint on snowflake broker
     Before EOY 2023:
         - move snowflake-02 to new VM
Help with:

meskio: 2023-11-09
     Last week:
         - update the teams wikis
         - explore pad backup options (hackweek#16)
         - rdsys accept multiple config files, to support separating 
secrets (rdsys#92)
         - fix onionsproutsbot after server upgrade (onionsproutsbot#55)
         - expore why polyanthum disk is filling up (tpa/team#41379)
     Next week:
         - experiment with testing bridges more frequently by 
bridgestrap (bridgestrap#39)

Shelikhoo: 2023-11-09
     Last Week:
                 - Work on snowflake performance improvement (WIP): 
https://gitlab.torproject.org/shelikhoo/snowflake/-/tree/dev-speedwithudp?ref_type=heads
                 - Hackweek: wiki replacement considerations 
https://gitlab.torproject.org/tpo/community/hackweek/-/issues/26#note_2963599
                 - Hackweek: Collaborative editing 
https://gitlab.torproject.org/tpo/community/hackweek/-/issues/16#note_2963325
                 - Merge request reviews
     Next Week/TODO:
            - Write Tor Spec for Armored URL (continue)
                 - Work on snowflake performance improvement (WIP): 
https://gitlab.torproject.org/shelikhoo/snowflake/-/tree/dev-speedwithudp?ref_type=heads
            - Merge request reviews

onyinyang: 2023-11-09
          Last week(s):
              - Continued work on Lox telegram bot
              - Hackweek: Docs for Lox 
https://gitlab.torproject.org/tpo/community/hackweek/-/issues/20
          This week:
              - Hackweek: Docs for Lox 
https://gitlab.torproject.org/tpo/community/hackweek/-/issues/20
              - Publish Lox crates to crates.io

         (long term things were discussed at the 
meeting!):https://pad.riseup.net/p/tor-ac-community-azaleas-room-keep
                          - brainstorming grouping strategies for Lox
buckets (of bridges) and gathering context on how types of bridges are
distributed/use in practice
                          Question: What makes a bridge usable for a
given user, and how can we encode that to best ensure we're getting the
most appropriate resources to people?
                                  1. Are there some obvious grouping
strategies that we can already consider?
                                   e.g., by PT, by bandwidth (lower
bandwidth bridges sacrificed to open-invitation buckets?), by locale (to
be matched with a requesting user's geoip or something?)
                                  2. Does it make sense to group 3
bridges/bucket, so trusted users have access to 3 bridges (and untrusted
users have access to 1)? More? Less?

-- 
---
onyinyang

GPG Fingerprint 3CC3 F8CC E9D0 A92F A108 38EF 156A 6435 430C 2036

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