[tor-project] Anti-censorship team meeting notes, 2022-5-12

Shelikhoo shelikhoo at torproject.org
Thu May 12 17:12:29 UTC 2022


Hey everyone!

Here are our meeting logs:
http://meetbot.debian.net/tor-meeting/2022/tor-meeting.2022-05-12-15.58.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 May 19th 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 ==

     *

== Discussion ==

     * Snowflake doesn't work in Russia (connection failure by timeout)
         * there are some anomalies in OONI for RU, but they are not 
higher than some coutries like CA
         * most of snowflake users are comming from Russia, it works at 
least for some
         * stunreachability measurements show 3 (of 12) STUN servers 
inaccessible in Russia, 2 blocked by Russian ISPs, 1 possibly 
geoblocking of users in Russia
             * 
https://explorer.ooni.org/chart/mat?probe_cc=RU&test_name=stunreachability&since=2022-02-01&until=2022-05-13&axis_x=measurement_start_day&axis_y=domain
         * flakey bridge-stats still show plenty of connections from 
Russia today
         * whoever added this discussion item is not here to supply more 
details
     * Moat gives blocklisted(ru) bridges in Russia (e.g. 
https://metrics.torproject.org/rs.html#details/1807BF9A521468998385F179DDBF928D2482A62C)
         * meskio will investigate it

== Actions ==

     *

== Interesting links ==

     *

== Reading group ==

     * We will discuss "Understanding the Impact of Encrypted DNS on 
Internet Censorship, ACM WWW 2021" on May 19th, 2022
         * https://shhaos.github.io/papers/www21-DoE.pdf
         * 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.

anadahz: 2022-01-27
     Last week:
         - Increase timeout check cycles for default-bridge-felix-1 and 
default-bridge-felix-2 as they have been generating too many alerts: 
https://gitlab.torproject.org/tpo/anti-censorship/monit-configuration/-/merge_requests/1

cecylia (cohosh): last updated 2022-05-12
     Last week:
     - work on conjure PT
     - review of Distributed snowflake server support (snowflake!87)
     This week:
     - continue work on conjure PT
     - continue snowflake maintenance tasks
     Needs help with:

dcf: 2022-05-12
     Last week:
         - started to look at OONI stunreachability measurements from Russia
     Next week:
         - look at STATUS VERSION proposal 
https://gitlab.torproject.org/tpo/core/torspec/-/merge_requests/63
         - set up access control on the snowflake-02 bridge 
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40122#note_2797271
         - write up observations on OONI stunreachability measurements 
from Russia
     Help with:

arlolra: 2022-04-07
     Last week:
         - Merged the rest of snowflake !81
     Next week:
       - Get to snowflake-webext #10
     Evergreen:
         - Figure out where in pion/webrtc ALPN should be configured and 
used
         - Maybe add Chacha20Poly1305 to pion/dtls
         https://github.com/pion/dtls#planned-features
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40014#note_2764731
     Help with:
         -

maxb: 2021-09-23
     Last week:
         - Worked on 
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40054 
re: utls for broker negotiation
         - Had conversation with someone about upstream utls http round 
tripper https://github.com/refraction-networking/utls/pull/74
         - Too busy with work :/
     Next week:
         - _Really_ want to get a PR for utls round tripper

meskio: 2022-05-12
     Last week:
             - add location to circumvention settings (rdsys#108)
             - use a worker to write telegram metrics (rdsys!39)
             - deploy a test setup for dynamic bridges updates API 
(rdsys#98)
             - prepare demhack.ru hackathon challenge (team#61)
             - configure our mergerequest assignments bot so cohosh only 
gets snowflake ones (TriageOps!8)
     Next week:
             - rethink distributor retries to the rdsys backend (rdsys#99)
             - use systemd to run bridgedb (team#72)

Shelikhoo: 2022-05-12
    Last Week:
      - [Merge Request] Add Distributed Snowflake Server Support 
(snowflake!87)
         - [Merge Request Awaiting] Add SOCKS5 forward proxy support to 
snowflake (snowflake!64)
         - [Merge Request Review] Telegram distributor hands both new 
and old bridges to old accounts (snowflake!37)
         - [Research & Coding] WebSocket + CDN Based Probe Control 
Connection Forwarder (shelikhoo/LogCollectorAncillary#3)
         - [Coding & Deployment] Proposal: Centralized Probe Result 
Collector (anti-censorship/team#54)
         - [Discussion] Opening 8443 port on probetelemetry-01@ for 
V2Ray Websocket Connection Inbound (continue)
    Next Week:
           - [Coding] Distributed Snowflake Bridges (continue)
           - [Merge Request] Add Distributed Snowflake Server Support 
(snowflake!87)
           - [Coding & Deployment] Proposal: Centralized Probe Result 
Collector (anti-censorship/team#54)
           - [Research & Coding & Coding] WebSocket + CDN Based Probe 
Control Connection Forwarder (shelikhoo/LogCollectorAncillary#3)
           - [Research & Coding] Implement metrics to measure snowflake 
churn 
(https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/34075)

Itchy Onion: 2022-05-12
     Last week:
         - prepared for Georgetown meeting (read code/docs about snowflake)
     This week:
         - audit PI meeting
         - working on the snowflake issues assigned to me
         - review MRs assigned to me

HackerNCoder: 2021-12-16
     This week:
     Last/done:
         Setup web mirror on tor.encryptionin.space
     Next:
         Get (new VPs with) new IP and setup new web mirror on new domain

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