[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

[tor-project] Anti-censorship team meeting notes, 2026-07-16

Hey everyone!
Here are our meeting logs: https://meetbot.debian.net/tor-meeting/2026/tor-meeting.2026-07-16-16.00.html 

And our meeting pad:

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

Next meeting: Thursday, July 16 16:00 UTC
Facilitator: cohosh

^^^(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 projects, 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 

    Projects the TPI anti-censorship team is working on:
Project 146: Expanding access to digital media through the use of secure communications, infrastructure, tools, and techniques
https://gitlab.torproject.org/groups/tpo/anti-censorship/-/issues/?label_name%5B%5D=Project%20146
Project 170: Monitoring and reporting on censorship against the Tor network 

    epic: https://gitlab.torproject.org/groups/tpo/-/epics/17

    Project 201: Signaling channels
board https://gitlab.torproject.org/groups/tpo/-/boards/2675?label_name[]=Project%20201 


== Announcements ==



== Discussion ==
Snowflake Daily Operations (snowflake-01 bridge) is making a decision about what to do about Mullvad donations, which have been the largest source of funding for the bridge.
https://opencollective.com/censorship-circumvention/projects/snowflake-daily-operations/transactions?limit=60&date%5Btz%5D=UTC&date%5Btype%5D=BETWEEN&date%5Bgte%5D=2025-07-01&date%5Blte%5D=2026-07-01&kind=ADDED_FUNDS&kind=CONTRIBUTION 

    We will likely be making a statement soon.


== Actions ==



== Interesting links ==

    https://petsymposium.org/popets/2026/popets-2026-0030.php
"Obscura: Enabling Ephemeral Proxies for Traffic Encapsulation in WebRTC Media Streams Against Cost-Effective Censors" 

    PETS 2026 paper that is relevant to Snowflake and WebRTC

    Other FOCI/PETS papers: https://github.com/net4people/bbs/issues/636


== 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? 

    Next in the Reading Group Queue:



== 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): 2026-07-16

    Last week:
- updated documentation on proxy poll-interval options (snowflake!715) 

        - worked on rate limiting implementation (snowflake#40506)

        - closed issue on FIFO vs LIFO priority queue (snowflake#40473)

    Next week:

        - continue to review PT spec implementation in UAT

        - more work on rate limiting proxy polls
- make proxy-bridge reachability checks robust to bridge outages (snowflake#40504) 



dcf: 2026-07-16

    Last week:
-worked with Snowflake Daily Operations on a response to Mullvad funding 

    Next week:

    Help with:


meskio: 2026-07-16
    Last week:
        - research how to add orbot to telegram gettor (onionsproutsbot#74)
        - start looking into options for DNS transports (team#199)
        - review TPA steps to include PTs in deb.tpo (tpa/team#42591)
        - reports
    Next week:
        - add orbot to telegram gettor (onionsproutsbot#74)


Shelikhoo: 2026-07-02
    Last Week:
- [Testing] Unreliable+unordered WebRTC data channel transport for Snowflake rev2 (cont.)( https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/315 ) testing environment setup/research 

    - Merge request Reviews
- [Research] proxy pool overload and potential blocking in Iran ( https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40077#note_3361718 )
- [Research] Add three NAT type buckets to the snowflake broker ( https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40077#note_3361718 )
- [Research] Request for Comment: Rust Library for TLS Fingerprint Imitation with Delegation Route Usage in Tor Browser) https://gitlab.torproject.org/tpo/applications/tor-browser/-/work_items/45056#note_3426867 (Done)
- [Deployment] Release Webtunnel server v0.0.5 (https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/webtunnel/-/merge_requests/45)
- [Research] Consider support of static file distribution(like Tor cached states) over amp cache to allow full Tor bootstrap over amp cache (https://gitlab.torproject.org/tpo/anti-censorship/team/-/work_items/198) 

    Next (working) Week/TODO:
        - Merge request reviews
- [Deployment]Unreliable+unordered WebRTC data channel transport for Snowflake rev2 (cont.)( https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/315 ) Building custom Tor Browser with patch applied 
        - Vantage point maintaince
- [Research] proxy pool overload and potential blocking in Iran ( https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40077#note_3361718 )
- [Research] Add three NAT type buckets to the snowflake broker ( https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40077#note_3361718 ) 

    - Add 3 type nat bucket to snowflake broker

    - Implement TLS Delegate in Rust (cont.)


onyinyang: 2026-07-16

    Last week(s):

    -  Mid-year break

    - Work for project #170 to detect bridge blocking

    Next week:

       - Continue tasks for project #170


   Switch back to some of these:
       As time allows:
          - Continue work on rdsys#196
- Continue Investigating rdsys#248 i.e., why dysfunctional webtunnel bridges are being distributed 

    - Troubleshooting conjure not connecting in China

    - waiting for more information from conjure authors/maintainers
- Lox still seems to be filling up the disk on the rdsys-test server despite changes made to delete old entries, look into what's going wrong
Blog post for conjure: https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/conjure/-/issues/46 - review Tor browser Lox integration https://gitlab.torproject.org/tpo/applications/tor-browser/-/merge_requests/1300 
              - add TTL cache to lox MR for duplicate responses:
https://gitlab.torproject.org/tpo/anti-censorship/lox/-/merge_requests/305 


    - Work on outstanding milestone issues:

    - 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: 2026-05-28

    Last weeks:

    - Researching possible DTLS block in Russia

    - https://github.com/net4people/bbs/issues/603#issuecomment-4451730751

    - Implementing DTLS 1.3 in pion

    Next weeks:

    - Implementing DTLS 1.3 in pion

    Help with:

    -




Facilitator Queue:

    cohosh 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 
_______________________________________________
tor-project mailing list -- tor-project@xxxxxxxxxxxxxxxxxxxx
To unsubscribe send an email to tor-project-leave@xxxxxxxxxxxxxxxxxxxx