Hey everyone!

Here are our meeting logs: http://meetbot.debian.net/tor-meeting/2024/tor-meeting.2024-04-18-16.15.html

And our meeting pad:

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

Next meeting: Thursday, Apr 25 16:00 UTC Facilitator: onyingyang ^^^(See Facilitator Queue at tail)

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: shelikhoo

== 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?sc...         * 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_nam...

== Announcements ==

== Discussion ==     * Latest snowflake addon reviewer feedback requires a consent prompt for the collection of personal data         * https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...         * is already being implemented and the addon is in the store

== Actions ==

== Interesting links ==

* Snowflake support in Greatfire Envoy (using their own proxies and bridge as I understand)         * https://github.com/greatfire/envoy/pull/63     * "Snowflake Anonymous Network Traffic Identification" January 2024         * https://link.springer.com/chapter/10.1007/978-981-99-9247-8_40         * Research from China, too recent to have been referenced in the Snowflake paper         * Corresponding author Xu Dawei also has a paper on secure rendezvous using a blockchain https://link.springer.com/chapter/10.1007/978-3-031-15777-6_14

== 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): 2024-04-18     Last week:         - added a consent prompt for the snowflake addon             - https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...         - deployed snowflake addon v0.8.0 (got approved)         - updated npm script for preparing addon             - https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...         - added a button to reopen consent prompt for addon             - https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...         - Added a fingerprint field to Lox bridge table after feedback from vecna             - https://gitlab.torproject.org/tpo/anti-censorship/lox/-/merge_requests/147         - reviewed and merged dependency updates         - added a new meek bridge to the censorship settings             - https://gitlab.torproject.org/tpo/anti-censorship/rdsys-admin/-/merge_reques...     This week:         - release a new version of snowflake addon once !72 and !73 are merged         - follow up on reported SQS errors         - update wasm-bindgen fork to fix some bugs and hopefully upstream changes         - create a Lox test environment and instructions for the browser team             - https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/42503     Needs help with:

dcf: 2024-04-18 (since 2024-03-21)     Last week:         - reviewed draft MR for unreliable data channels https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...         - investigated a momentary drop in users of the snowflake-01 bridge https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...         - azure CDN bookkeeping https://gitlab.torproject.org/tpo/anti-censorship/team/-/wikis/Snowflake-cos...         - archived snowflake-webext 0.8.0 https://archive.org/details/snowflake-webextension-0.8.0     Next week:         - open issue to have snowflake-client log whenever KCPInErrors is nonzero https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...             - parent: https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...         - open issue to disable /debug endpoint on snowflake broker         - move snowflake-02 to new VM Help with:

meskio: 2023-04-18     Last week:         - persistency for resources in rdsys (rdsys#56)         - use the same distributor for bridges sharing IP or fingerprint (rdsys!293)         - integration tests for rdsys (rdsys#180)     Next week:         - email distributor in rdsys (rdsys#186)

Shelikhoo: 2024-04-18     Last Week:         - [Merge Request WIP] Add Container Image Mirroring from Tor Gitlab to Docker Hub(https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...)         - [Merge Request Done] Update lyrebird version to v0.2.0 https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/lyreb...         - [Merge Request] Rename Stable Container Tags to Latest https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...                 - Merge request reviews     Next Week/TODO:         - Merge request reviews         - Investigate broken debian-testing pipeline for snowflake

onyinyang: 2023-04-18     Last week(s):         - HACS         - DRL meeting         - AFK for 1 week

This week:         - Responding to pre-existing MR reviews and other notifications/questions in gitlab     Probably next week and beyond:         - preparing for upcoming panel         - implement some preliminary user feedback mechanism to identify bridge blocking based on Vecna's work         - improve metrics collection/think about how to show Lox is working/valuable         - sketch out Lox blog post/usage notes for forum         - attempt hyper upgrade again

(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?

theodorsm: 2023-04-18         Last weeks:             - WIP: extended Pion dtls library to support mimicking of client hellos. A github action generate fresh dtls handshakes of the newest firefox and chromium versions. The bytes of the client hello are replayed to mimick common dlts fingerprints.         Next weeks:             - Test and validate mimicked client hello with snowflake.             - PR to pion github, talk with sean.         Help with:

Facilitator Queue:     onyinyang meskio shelikhoo 1. First available staff in the Facilitator Queue will be the facilitator for the meeting 2. After facilitating the meeting, the facilitator will be moved to the tail of the queue