[tor-project] Anti-censorship team meeting notes, 2022-07-21

Shelikhoo shelikhoo at torproject.org
Thu Jul 21 17:32:42 UTC 2022


Hey everyone!

Here are our meeting logs:
http://meetbot.debian.net/tor-meeting/2022/tor-meeting.2022-07-21-15.59.html 
<http://meetbot.debian.net/tor-meeting/2022/tor-meeting.2022-03-31-15.59.html>

And our meeting pad:

Anti-censorship work meeting pad

--------------------------------

Next meeting: Thursday Aug 4 16:00 UTC

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

== 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 Tor.

== 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 28
             * must-do tickets: 
https://gitlab.torproject.org/groups/tpo/-/milestones/10
             * possible tickets: 
https://gitlab.torproject.org/groups/tpo/-/issues?scope=all&utf8=%E2%9C%93&state=opened&label_name%5b%5d=Sponsor%2028&milestone_title=None
         * Sponsor 96
             * https://gitlab.torproject.org/groups/tpo/-/milestones/24

== Announcements ==

     * logcollector redeployment finished, project moved to team 
space(src shell)
         * 
https://gitlab.torproject.org/tpo/anti-censorship/connectivity-measurement
         * 
https://gitlab.torproject.org/tpo/anti-censorship/team/-/issues/70
         * 
https://gitlab.torproject.org/tpo/anti-censorship/connectivity-measurement/logcollector-admin/-/issues/3

     * 
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40161 
(Private)

     * roskomanzor has lifted the blockade on torproject.org website, no 
on the network
         * 
https://gitlab.torproject.org/tpo/community/support/-/issues/40050#note_2823017

== Discussion ==

     * What is the status of adjusting snowflake (pion) DTLS signature 
to avoid blocking in Russia? (Based on offset of supported_groups 
extension.)
         * 
https://gitlab.torproject.org/tpo/anti-censorship/censorship-analysis/-/issues/40030#note_2804998
         * https://github.com/pion/dtls/pull/474
         * https://ntc.party/t/webrtc/2174/21
         * 
https://gitlab.torproject.org/tpo/community/support/-/issues/40050 
(generally)
         * shell have produced a TB tgz with a modified snowflake to test
             * 
https://people.torproject.org/~shelikhoo/dqo8apcai4/tor-browser/tor-browser-11.5a13-linux-x86_64-176893/tor-browser-linux64-11.5a13_en-US.tar.xz
         * shell will post it in nft and tor forum
             * 
https://ntc.party/t/testing-invitation-for-tor-browser-with-supported-groups-patch-countermeasure-in-snowflake-to-evade-censorship-observed-in-russia/2837
             * (Not working???)
             * >>> Request a packet capture
             * 
https://forum.torproject.net/t/testing-invitation-for-tor-browser-with-supported-groups-patch-countermeasure-in-snowflake-to-evade-censorship-observed-in-russia/4029
             * (No reply #~#)

     * Bug fix release for Snowflake necessary(src shell)
         * Semver? 0.6.1, is cherry-pick necessary?
         * 
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake-webext/-/issues/45
         * 
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake-webext/-/merge_requests/40
         * >>> cherry-pick if easy, and then release bug fix release

== Actions ==


== Interesting links ==


== Reading group ==

     * We will discuss "" on
         *
         * 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): last updated 2022-06-30
     Last week:
     - got tor to bootstrap fully with the deployed conjure station and 
bridge
     - met with CU Boulder team to discuss conjure rollout plan
     This week:
     - follow up with CU Boulder team about a wireguard connection 
between the station and bridge
     - a few quality of life conjure issues
         - 
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/conjure/-/issues/?sort=updated_desc&state=opened&assignee_username%5B%5D=cohosh&first_page_size=20
     - draft an announcement of conjure for forum and development 
community mailing lists
     Needs help with:

dcf: 2022-07-07
     Last week:
             - commented on STATUS VERSION proposal and proposed some 
text 
https://gitlab.torproject.org/tpo/core/torspec/-/merge_requests/63#note_2817321
             - commented on Snowflake user estimates vis-à-vis Tor 
Metrics 
https://gitlab.torproject.org/tpo/network-health/metrics/website/-/issues/40047#note_2817372 
https://gitlab.torproject.org/tpo/network-health/metrics/website/-/issues/40057#note_2818588
     Next week:
         - disable non-WireGuard SSH access to snowflake-02
     Help with:

meskio: 2022-07-21
    Last week:
        - use the same bucket on gettor-rdsys archive.org for the 
existence file (rdsys!44)
        - use a folder per flatform on gettor-rdsys gdrive (rdsys!45)
        - request feedback on bridge URIs and QR codes
        - review code cleanups on snowflake webextension 
(webextension!36 !37)
        - review connection assist feedback (support#40086)
        - help on bridgedb lektor migration and broken tests (bridgedb!31)
    Next week:
        - deploy moat shim-token support
        - deploy a testing environment of rdsys-gettor

Shelikhoo: 2022-07-21
    Last Week:
         - [Merge Request Awaiting] Add SOCKS5 forward proxy support to 
snowflake (snowflake!64)
         - [Discussion & Deployment] Migrating Controlling git repo to 
Tor Gitlab Instance (shelikhoo/LogCollectorAncillary#5)
         - [Discussion & Deployment] Rollout of Distributed Snowflake 
Support
         - [Deployment] Creating a version of Tor Browser with patched 
Snowflake client that includes supported_groups censorship 
countermeasure(https://gitlab.torproject.org/tpo/anti-censorship/team/-/issues/83#note_2820655)
         - [Coding & Deployment] Proposal: Centralized Probe Result 
Collector (anti-censorship/team#54)
         - [Research & Coding] WebSocket + CDN Based Probe Control 
Connection Forwarder
         - [Investigate & Review] Daily number of users helped gone to 
zero 
(https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake-webext/-/issues/45#note_2822553)
    Next Week:
         - [Investigate] China "Anti-Fraud" Webpage Redirection 
Censorship (censorship-analysis#40026): update the research based on 
updated ooni
         - [Research+Coding] Raw Probe Log Data Collection 
https://gitlab.torproject.org/tpo/anti-censorship/connectivity-measurement/logcollector/-/issues/1
result

Itchy Onion: 2022-07-21
     Last week:
         - ongoing debugging s28 issues 81 (leaking file descriptor)
     This week:
         - updating snowflake plugin for RACE 2.2.0




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