[tor-project] Anti-censorship team meeting notes, 2024-03-14
Shelikhoo
shelikhoo at torproject.org
Thu Mar 14 17:13:39 UTC 2024
Hey everyone!
Here are our meeting logs:
http://meetbot.debian.net/tor-meeting/2024/tor-meeting.2024-03-14-15.57.html
And our meeting pad:
Anti-censorship work meeting pad
--------------------------------
Anti-censorship
--------------------------------
Next meeting: Thursday, March 21 16:00 UTC
Facilitator: meskio
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?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 ==
- Elections in Russia (March 14 - 17)
== Discussion ==
Last week:
* should we deprecate docker-snowflake-proxy?
* There is now a snowflake Dockerfile for the proxy in the main
snowflake repo
*
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/246
* do we need to do something to integrate it in our release
process?
* yes, we will deprecated
* shelikhoo will move that forward in this issue:
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40345
* Fastly domain fronting updates
* https://github.com/net4people/bbs/issues/309
*
https://gitlab.torproject.org/tpo/anti-censorship/team/-/issues/135
New:
* PTs removed from ios onionbrowser because of RAM constraints
* https://github.com/guardianproject/orbot/issues/1106
* snowflake-webextension still (2024-03-12) being rejected from
Mozilla add-ons? https://paste.mozilla.org/Vh9jKk5g
* Error: Command failed: git submodule update --init -- translation
* fatal: not a git repository (or any of the parent
directories): .git
*
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake-webext/-/issues/89#note_3007959
== Actions ==
== Interesting links ==
* https://github.com/getlantern/broflake Lantern's new
Snowflake-like, uses QUIC, WASM, WebTransport
== 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): 2024-03-14
Last week:
- reviewed Lox MRs
- refactored Lox's bridge_replace function
-
https://gitlab.torproject.org/tpo/anti-censorship/lox/-/merge_requests/143
- improved error types for lox-library::proto::*::request functions
-
https://gitlab.torproject.org/tpo/anti-censorship/lox/-/merge_requests/144
- removed fixed length fields from Lox's BridgeLine struct
-
https://gitlab.torproject.org/tpo/anti-censorship/lox/-/merge_requests/147
- responded to mozilla addon store rejection
This week:
- open MR to change front domain for OONI tests
- deploy snowflake sqs fix
- followup on web extension rejection from mozilla
- compile a list of next-steps for lox
- update wasm-bindgen fork to fix some bugs and hopefully
upstream changes
- tor-browser-build updates for lox wasm + bindings generation
- Conjure bridge maintenance
Needs help with:
dcf: 2024-03-14
Last week:
- azure CDN bookkeeping
https://gitlab.torproject.org/tpo/anti-censorship/team/-/wikis/Snowflake-costs/diff?version_id=a25dfe9eb19a28bb3903d6ed1bd4a9a76cd8361f
- answered a question about Snowflake proxies
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40346#note_3007417
Next week:
- review draft MR for unreliable data channels
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/219
- 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: 2023-03-14
Last week:
- make obfs4-bridge docker image work in armv7
(docker-obfs4-bridge#18)
- publish bridgestrap collector metrics every hour (bridgestrap#39)
- export bridge tests results on assignments.log (rdsys!280)
- document new assignments.log format on the metrics website
(metrics/website!71)
- fix moat not distributing bridges config problem (rdsys#190)
Next week:
- captcha moat in rdsys
Shelikhoo: 2024-03-14
Last Week:
- [Merge Request Done] Remove translation for Tor
Project URL
https://gitlab.torproject.org/tpo/anti-censorship/rdsys/-/merge_requests/278
- Write WebTunnel Blog Post Draft
- Prepare for 3-min presentation
- Merge request reviews(a lots of them!)
Next Week/TODO:
- [Research] Inspect Snowflake Situation In China
- Prepare for 3-min presentation
onyinyang: 2023-03-14
Last week(s):
- continued prep for HACS/DRL meeting
- Sync-test rebase
This week:
- continue prep for HACS/DRL meeting
- Attend HACS, then RWC, then DRL meeting
(later things)
- 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: 2023-03-14
Last weeks:
- Created a setup for extracting fingerprints from DLTS
handshakes and analyzed the previous webrtc/dtls data sets from
https://github.com/kyle-macmillan/snowflake_fingerprintability. Found
more fingerprints than presented in the original paper, but the
fingerprints are not present in newer snowflake versions.
- Contacted Sean DuBois at Pion, he is very supporting of
the project and happy to merge features related to anti-censorsip
- Started on a setup for collecting DTLS handshakes to be
used for mimicking
- Exploring and planning features for anti-fingerprinting
techniques to implement in the Pion lib.
Next weeks:
- Creating a setup for generating DTLS handshakes of
web-browsers with selenium/playwright. This will hopefully generate
common handshakes/fingerprints
Help with:
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