Hey everyone!

Here are our meeting logs:

http://meetbot.debian.net/tor-meeting/2024/tor-meeting.2024-10-24-16.00.html

And our meeting pad:

Anti-censorship --------------------------------

Next meeting: Thursday, October 31 16:00 UTC Facilitator: onyinyang ^^^(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: meskio

== 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 projects, we are working on: * All needs review tickets: * https://gitlab.torproject.org/groups/tpo/anti-censorship/-/merge_requests?sc... * Project 158 <-- meskio working on it * https://gitlab.torproject.org/groups/tpo/anti-censorship/-/issues/?label_nam...

== Announcements ==

*

== Discussion ==

* Snowflake broker transition still pending.

* Adding a snowflake transport to lyrebird * https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/lyreb... * Squash PTs into Lyrebird: https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/lyreb... * TODOs: add proxy support and event logging * We decide is a good idea to integrate the snowflake client into lyrebird * we are not removing the snowflake client from the snowflake proyect for now, we'll keep both until it becomes a burden. * only the snowflake client will be integrated in lyrebird, not the server

* pion/webrtc v4 release is out * it has support to integrate with covert-dtls * on the beta testing there were some issues, we'll need to check if it works with the release or it needs work

* split broker into components * there is an old MR with a WIP version of this change * we are still interested on it * cohosh will check with arlo if he can continue that work or we'll close it for now

== Actions ==

== Interesting links ==

* OS image with remote access (for providing vantages in censored regions), with built-in circumvention as an incentive to run it. * https://github.com/ValdikSS/hoogmoon-testing * https://ntc.party/t/5939 * Tor 0.4.8.13 was released with STATUS TYPE=version support so PTs can report their version * https://gitlab.torproject.org/tpo/core/tor/-/raw/release-0.4.8/ReleaseNotes * https://github.com/refraction-networking/uquic * "Low-level access to the QUIC Initial Packet for mimicry purposes, hard fork of quic-go."

== 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): 2024-10-24 Last week: - finished IPtProxy rewrite - https://github.com/tladesignz/IPtProxy/pull/61 - added a snowflake transport into lyrebird https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/lyreb... - added OnClientConnected callback to the snowflake proxy https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf... - fixed a panic when SnowflakeConn is closed more than once https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf... - merged some dependency updates - lots of reviews This week: - continue work on adding a snowflake transport to lyrebird - finish snowflake dependency upgrades that were causing problems - take a look at snowflake web and webext translations and best practices - make changes to Lox encrypted bridge table - https://gitlab.torproject.org/tpo/anti-censorship/lox/-/merge_requests/147 Needs help with: - abandoned snowflake MR - https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...

dcf: 2024-10-24 Last week: - reviewed merge request to remove inner pollInterval in snowflake standalone proxy https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf... - reviewed merge request to pre-resolve snowflake relay URL hostnames to check if they are local https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf... - answered a question about domain fronting with Google and meek https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/meek/... - commented on merge request to guess an unrestricted NAT type on the first attempt if unknown https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf... = made additional comments on merge request to run Manifest Version 3 snowflake proxy while the browser is closed https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf... - commented on a double Close panic in the snowflake client library https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf... Next week: - comment on updates to unreliable snowflake transport https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf... - 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 Help with: - tell me when to restart the brokers for https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...

meskio: 2024-10-24 Last week: - bring back QR coes for email bridges (rdsys#244) - add QR codes to Telegram distributor (rdsys#243) - debug gettor telegram issues (onionsproutsbot#63) Next week: - update snowflake proxy debian package

Shelikhoo: 2024-10-24 Last Week: - [Next Action Pending] snowflake broker update/reinstall(cont.): https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf... - [Awaiting Review] Unreliable+unordered WebRTC data channel transport for Snowflake rev2 (cont.)( https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf... ) improvements - [Awaiting Input] Review CI: fix `latest` container image tag. https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf... - Update vantage point image on cnnext, russia - Prepare State of the Onion script/slide - Merge request reviews Next Week/TODO: - Merge request reviews - Unreliable+unordered WebRTC data channel transport for Snowflake rev2 (cont.) ( https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf... ) improvements - Prepare State of the Onion script/slide - Work on finishing snowflake container release(and fix the comments) - Work on Parpare DeploymentTool for Publishing https://gitlab.torproject.org/tpo/anti-censorship/connectivity-measurement/l...

onyinyang: 2024-10-24 Last week(s): - MR for troll-patrol integration for Lox bridge blockage detection - https://gitlab.torproject.org/tpo/anti-censorship/lox/-/merge_requests/263 Next week: - fix up some troll-patrol functionality - extra-info collecting/parsing should work correctly and exit gracefully - maybe make blockage detection in extra info a bit more reasonable - prevent evaluation before stats are published - implement and deploy test distributor - update lox protocols to return duplicate responses for an already seen request - Work on outstanding milestone issues: in particular: https://gitlab.torproject.org/tpo/anti-censorship/lox/-/issues/69 - key rotation automation Later: pending decision on abandoning lox wasm in favour of some kind of FFI? https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/43096): - add pref to handle timing for pubkey checks in Tor browser - add trusted invitation logic to tor browser integration: https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/42974 - improve metrics collection/think about how to show Lox is working/valuable - sketch out Lox blog post/usage notes for forum (long term things were discussed at the meeting!): - 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: 2024-10-24 Last weeks: - Adjusting to post-student life - Testing out beta releases of pion dtls and webrtc Next weeks: - Update Snowflake to use latest pion upstream releases - Test Snowflake fork with covert-dtls - Condensing thesis into paper Help with: - Feedback on thesis

Facilitator Queue: onyinyang shelikhoo meskio 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