Hey everyone!

Here are our meeting logs: http://meetbot.debian.net/tor-meeting/2022/tor-meeting.2022-08-11-15.58.html

And our meeting pad:

Anti-censorship work meeting pad

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Next meeting: Thursday Aug 18 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?sc... * 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%... * Sponsor 96 * https://gitlab.torproject.org/groups/tpo/-/milestones/24

== Announcements ==

*

== 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/-/issu... * 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-... * shell will post it on ntc and tor forum * https://ntc.party/t/testing-invitation-for-tor-browser-with-supported-groups... * (Not working???) * >>> Request a packet capture * https://forum.torproject.net/t/testing-invitation-for-tor-browser-with-suppo... * (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/-/issu... * This discussion will be moved to censorship-analysis#40030 and remove from the pad

* Snowflake * 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/snowf... * we are not conforably giving gitlab access to push images to docker hub * but we can build binaries in the CI

(New) * Use azure as snowflake's fronting service: context -> Turkmenistan meek working, snowflake blocked https://gitlab.torproject.org/tpo/anti-censorship/censorship-analysis/-/issu... https://gitlab.torproject.org/tpo/anti-censorship/censorship-analysis/-/issu... src shell (conflicting evidence: https://snowflake-broker.freehaven.net/metrics shows 1 TM IP, but proxy based test show cover site reachable) * meskio will find who has access to meek-azure and if we can change the domain front from the circumvention settings just for TM * there is a merge request in tor to fix some issues connecting to Tor from TM: https://gitlab.torproject.org/tpo/core/tor/-/merge_requests/599 * most obfs4 bridges are blocked as most IP ranges are not reachable from TM

* HTTPT discussion RFC: https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/httpt... src shell * shell will start working on that proposal

== 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/conju... - 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/snowf... https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf... - snowflake CDN bookkeeping https://gitlab.torproject.org/tpo/anti-censorship/team/-/wikis/Snowflake-cos... - 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_2822... - answered a question about pluggable transports and FascistFirewall https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf... - 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_2823... Help with:

meskio: 2022-08-11 Last week: - set upa testing environment of rdsys-gettor - prepare a deployment of rdsys-gettor - catch up after vacation Next week: - deploy moat shim-token support - deploy rdsys-gettor

Shelikhoo: 2022-08-04 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/l... - [Investigate] China "Anti-Fraud" Webpage Redirection Censorship (censorship-analysis#40026): update the research based on updated ooni - [Merge Request Awaiting] Raw Probe Log Data Collection https://gitlab.torproject.org/tpo/anti-censorship/connectivity-measurement/l... - [Research] HTTPT Planning https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/httpt... - [Deployment] Enable unprivilaged user namespace support on probetelemetry-01@ for systemd user unit isolation https://gitlab.torproject.org/tpo/tpa/team/-/issues/40855 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/l... - [Research] HTTPT Planning(Continue)

Itchy Onion: 2022-08-11 Last week: - Updated snowflake plugin for RACE 2.2.0 This week: - Fixing leaking file descriptor issue