[tor-project] Anti-censorship team meeting notes, 2024-05-16
onyinyang
onyinyang at torproject.org
Thu May 16 16:42:08 UTC 2024
Hey everyone!
Here are our meeting logs:
http://meetbot.debian.net/tor-meeting/2024/tor-meeting.2024-05-16-16.00.html
And our meeting pad:
Anti-censorship work meeting pad
--------------------------------
Anti-censorship
--------------------------------
Next meeting: Thursday, May 30 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: onyinyang
== 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?scope=all&utf8=%E2%9C%93&state=opened&assignee_id=None
* 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_name%5B%5D=Sponsor%20150
== Announcements ==
* No meeting May 23, we are at the tormeeting
== Discussion ==
- 0.4.7.x bridges removal (2024-05-16: 500 bridges running EOL):
https://metrics.torproject.org/rs.html#search/type:bridge%20version:0.4.7%20
== Actions ==
== Interesting links ==
* https://t.me/s/tor_bridges https://t.me/s/vanilla_bridges
* Telegram channels handing out bridges, found at
https://ntc.party/t/7701/4
* https://github.com/jmwample/ptrs
* By Jack Wampler, abstraction for building pluggable
transports in Rust, obfs4 implementation, and "lyrebird" multi-transport
binary.
* https://github.com/theodorsm/covert-dtls
* covertDTLS is a library inspired by uTLS for offering
fingerprint-resistance features to pion/dtls.
*
https://opencollective.com/censorship-circumvention/projects/snowflake-daily-operations
* https://www.youtube.com/watch?v=w3QVkw7Beqc
* onyinyang gave a presentation on snowflake for TechSoup's
Securing the Future panel discussion (along with FPF, Quiet and EFF)
== Reading group ==
* We will discuss "Communication Breakdown: Modularizing
Application Tunneling for Signaling Around Censorship" on May 30
* https://petsymposium.org/popets/2024/popets-2024-0027.php
* 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): 2024-05-09
Last week:
- Updated dependencies for various projects
- Shadow simulations
- https://github.com/cohosh/ptnettools
- Lox-wasm integration test fixups
- Opened an issue about Lox blockage migration
This week:
- upload new snowflake-webext version 0.8.2 to both Firefox and
Chrome web stores
- make changes to Lox encrypted bridge table
-
https://gitlab.torproject.org/tpo/anti-censorship/lox/-/merge_requests/147
- 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: 2024-05-16
Last week:
- snowflake azure cdn bookkeeping
https://gitlab.torproject.org/tpo/anti-censorship/team/-/wikis/Snowflake-costs/diff?version_id=04ae70addf4afdd6a4bbb7622806ff0a12eff14a
- archived snowflake-webextension-0.8.2
https://archive.org/details/snowflake-webextension-0.8.2
Next week:
- review snowflake unreliable+unordered data channels rev2
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/315
- open issue to have snowflake-client log whenever KCPInErrors
is nonzero
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40262#note_2886018
- parent:
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40267
- open issue to disable /debug endpoint on snowflake broker
- move snowflake-02 to new VM
Help with:
meskio: 2023-05-16
Last week:
- add journaling to rdsys persistency so data don't get lost if
an unexpected restart (rdsys#201)
- make errors explicit on distributor assignments in rdsys
(rdsys#200)
- deploy rdsys backend with persistency on bridge assignments
- investigate problems with renovate (rdsys#202)
Next week:
- tormeeting
Shelikhoo: 2024-05-16
Last Week:
- [Merge Request Waiting] Add Container Image Mirroring from
Tor Gitlab to Docker
Hub(https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/280)
- [Merge Request] Snowflake Performance Improvement rev2
(https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/315)
- Merge request reviews
Next Week/TODO:
- In person tor event!
- Merge request reviews
onyinyang: 2023-05-16
Last week(s):
- Hyper upgrade and tokio upgrade
- prepared and presented for techsoup panel
https://www.youtube.com/watch?v=w3QVkw7Beqc
- key rotation implementation
This week:
- key rotation implementation
- begin implementing some preliminary user feedback mechanism
to identify bridge blocking based on Vecna's work
Next week:
- FOMO and sadness :(
- 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: 2023-05-16
Last weeks:
- Pion dtls have merged my PR for hooking of client
hellos, server hellos and certificate request
(https://github.com/pion/dtls/pull/631).
- Quick test with my mimicking library
(https://github.com/theodorsm/covert-dtls) with snowflake: promising results
- Writing for my thesis
Next weeks:
- Add hook to pion/webrtc so it can be used in snowflake.
- Further test and validate mimicked client hello with
snowflake.
- Add randomized fingerprint
- Writing my thesis
- Might explore some stateful attacks/fingerprints
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
--
---
onyinyang
GPG Fingerprint 3CC3 F8CC E9D0 A92F A108 38EF 156A 6435 430C 2036
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