[tor-project] Anti-censorship team meeting notes, 2022-08-04

Shelikhoo shelikhoo at torproject.org
Thu Aug 4 16:40:51 UTC 2022


Hey everyone!

Here are our meeting logs:
http://meetbot.debian.net/tor-meeting/2022/tor-meeting.2022-08-04-15.59.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 11 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 ==

     * HotFOCI next week, Tue 2022-08-09
         * https://hotfoci.org/
         * register here: https://hotfoci.org/register

== Discussion ==

(KEEP)
     * 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 on ntc 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 #~#)
             * User reports that the problem now is the presence of a 
Hello Verify Request message
                 * 
https://gitlab.torproject.org/tpo/anti-censorship/censorship-analysis/-/issues/40030#note_2823140

(New)
     * Snowflake
         * New snowflake.tpo text review and discussion: 
https://pad.riseup.net/p/snowflake-landing-page-content-update-2022 
ticket: 
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40125
         * Umbrel asked us:"If you push multi architecture builds to 
Docker Hub after your releases automatically, it would just be super 
simple PR to update the version number and checksum to keep Umbrel up to 
date". 
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40169

== 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: 2022-08-04
     Last week:
         - answered some questions about snowflake polling 
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake-webext/-/issues/43#note_2820375 
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40158#note_2821713
         - snowflake CDN bookkeeping 
https://gitlab.torproject.org/tpo/anti-censorship/team/-/wikis/Snowflake-costs/diff?version_id=3df00c8ccef8016d2b73aaf851c04343768d3e83
         - made a mirror of shelikhoo's 
tor-browser-11.5a13-snowflake-dtlslib-20220712-9d73998bca39 
https://gitlab.torproject.org/tpo/anti-censorship/team/-/issues/83#note_2822221
         - answered a question about pluggable transports and 
FascistFirewall 
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40159#note_2822202
         - archived snowflake-webextension-0.6.1 
https://archive.org/details/snowflake-webextension-0.6.1
     Next week:
         - disable non-WireGuard SSH access to snowflake-02
         - migrate goptlib to gitlab 
https://gitlab.torproject.org/tpo/anti-censorship/team/-/issues/86#note_2823122
     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: 2022-08-4
    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
         - [Coding & Deployment] Proposal: Centralized Probe Result 
Collector (anti-censorship/team#54)
         - [Research+Coding] Raw Probe Log Data Collection 
https://gitlab.torproject.org/tpo/anti-censorship/connectivity-measurement/logcollector/-/issues/1

    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
         - [Research] HTTPT Planning
result

Itchy Onion: 2022-08-04
     Last week:
         - Updated snowflake plugin for RACE 2.2.0 (introduced a bug)
     This week:
         - Since updating snowflake plugin to 2.2.0, it has been 
silently dropping messages. Been working on it since then.
     Next week:
         - Still need to work on the leaking file descriptor issue from 
a while ago




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