Hey everyone!

Here are our meeting logs:

http://meetbot.debian.net/tor-meeting/2023/tor-meeting.2023-03-23-15.58.log....

And our meeting pad: Anti-censorship work meeting pad

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- THIS IS A PUBLIC PAD

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

Next meeting: Thursday, March 23 16:00 UTC

Weekly meetings, every Thursday at 16:00 UTC, in #tor-meeting at OFTC (channel is logged while meetings are in progress)

== 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?sc...

- Sponsor 96

- https://gitlab.torproject.org/groups/tpo/-/milestones/24

- Sponsor 139 <-- hackerncoder, irl, joydeep, meskio, emmapeel working on it

- https://pad.riseup.net/p/sponsor139-meeting-pad

== Announcements ==

== Discussion ==

- renovate bot to update dependencies on our projects

- https://gitlab.torproject.org/tpo/tpa/renovate-cron

- there have been complaints that some dependencies of snowflake are outdated

- https://github.com/tladesignz/IPtProxy/issues/45

- https://gitlab.torproject.org/tpo/anti-censorship/team/-/issues/122

- (x/net and x/crypto dependencies were incidentally updated in a recent pion update: https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf..., but not to the currently most recent version)

- currently being used in rdsys, could enable for other projects by request

== Actions ==

-  update the x/net and x/crypt libraries in snowflake and obfs4

- https://gitlab.torproject.org/tpo/anti-censorship/team/-/issues/122

== Interesting links ==

- https://github.com/guardianproject/orbot/releases/tag/17.0.0-BETA-2-tor.0.4....

- https://github.com/guardianproject/orbot/commit/c3f6ee18f17770a5904ad19c3cd2...

- 2023-03-15 Orbot for Android v17 BETA 2 released with snowflake-02 bridge

- snowflake-02 metrics: https://metrics.torproject.org/rs.html#details/91DA221A149007D0FD9E5515F5786... (multiply by 12)

== 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): last updated 2023-03-23 Last week(s):     - Lox tor browser integration work in progress         - https://gitlab.torproject.org/tpo/anti-censorship/team/-/issues/116         - created a fork of wasm-bindgen that generates javascript bindings for the lox client that are compatible with internal browser modules         - looked into enabling wasm target for rust in tbb             - https://gitlab.torproject.org/tpo/applications/tor-browser-build/-/issues/40...     - Lox distributor work         - debugged some async problems with the rdsys-backend-api library     - helped set up new meek bridge for users in TM This week:     - continue Lox tor browser integration     - catch up on snowflake-webext issues and MRs Needs help with:

dcf: 2023-03-23

- Last week:

- - wrote up ideas about partially reliable and/or unordered WebRTC data channels in snowflake https://lists.torproject.org/pipermail/anti-censorship-team/2023-March/00028...

- - wrote notes on RFC 8828 which gives guidance on handling private IP address ICE candidates https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...

- - wrote notes on STUN fingerprinting and STUN over DTLS (RFC 7350) https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...

- - sketched a plan for providing bridge capacity for Turkmenistan https://gitlab.torproject.org/tpo/anti-censorship/censorship-analysis/-/issu...

- - wrote a merge request to fix a minor PT initialization bug in snowflake-server https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...

- - made the necessary changes to make nf_conntrack changes persistent on the snowflake bridges, and restarted them both https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...

- - contributed thoughts about how to share a pool of snowflake proxies with other circumvention projects

- Next week:

- - migrate goptlib to gitlab https://gitlab.torproject.org/tpo/anti-censorship/team/-/issues/86#note_2823... (for real)

- - 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...

- Help with:

meskio: 2023-03-23    Last week:

- - explore how to add webtunnel to rdsys (rdsys#142)

- - add webtunnel support to bridgestrap (bridgestrap!15)

- - experiment with renovate bot in rdsys to update dependencies

- - apply to docker DSOS program (team#121)

- - rebase pt version spec (torspec!63)

Next week:

- - rdsys webtunnel support (rdsys#142)

Shelikhoo: 2023-03-16    Last Week:

- - [Merge Request Awaiting] Add SOCKS5 forward proxy support to snowflake (snowflake!64)

- - [Research] HTTPT Planning https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/httpt...

- - Upstreaming Remove HelloVerify countermeasure (https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...)

- - Fix return nil error on unrecognized request http upgrade failure (https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/webtu...)

- - consider propagating 2FA everywhere, maybe, at the April Tor Meeting (https://gitlab.torproject.org/tpo/tpa/team/-/issues/41083#note_2884138)

- - Resynchronization with Upsteamed Remove HelloVerify countermeasure (https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...)

- - Comment on OnionShare Rebrand

- - Comment on S96 User Research Risk Assessment

- - Comment on Analysis of speed deficiency of Snowflake in China, 2023 Q1(https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...)

- - Comment on enable Gitlab Container Registry(         https://gitlab.torproject.org/tpo/tpa/gitlab/-/issues/89#note_2886693)

- - Add utls-imitate, utls-nosni doc to README (https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...)

- - Review Assign an accepted bandwidth ratio to TBLinks(https://gitlab.torproject.org/tpo/anti-censorship/rdsys/-/merge_requests/78#...)

- - Review Proxy: add an option to bind to a specific address (https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...)

Next Week:

- - [Research] WebTunnel planning (Continue)

- - Try to find a place to host another vantage point

- - Resynchronization with Upsteamed Remove HelloVerify countermeasure (https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...)

- - consider propagating 2FA everywhere, maybe, at the April Tor Meeting (https://gitlab.torproject.org/tpo/tpa/team/-/issues/41083#note_2884138)

- - logcollector alter system

- - webtunnel document for proxy opertaor

-

onyinyang: 2023-03-23     Last week:         - Finished up most of the minimally working example of Lox server integration with rdsys

-          - Identified and helped to debug async issues with rdsys-backend-api stream

-          - Added more helpful comments/error handling and graceful shutdown

- https://gitlab.torproject.org/tpo/anti-censorship/lox/lox-distributor/-/merg...

-

This week:         - Finish up the handling of changed resources in the Lox library

- - Improve client side handling of BridgeLines?

- - Discuss next steps with cohosh

Itchy Onion: 2023-03-22     Last week:

- - Closed #40252 (NAT probetest for standalone proxy)

- - Closed #40265 (mac user reporting standalone proxy complaning about broker cert)

- - Worked on #40231 (Client sometimes send offer with no ICE candidates)

-

This week:      - Tested and created a potential broker security issue (#40266)

- - Stil working on #40231 -- validate SDP contains candidate at the "/client" and "/answer" endpoints broke almsot all of the unit tests

-

-

hackerncoder: 2023-03-09     last week:     Next week:         - getting ooni-exporter to work with torsf (snowflake)         - ooni-exporter web_connectivity         - work on "bridgetester"?         - how does Iran block bridges

cece: 2022-12-22     This week:         - working on creating a dummy WhatsApp bot     Next week:         - My bot is not yet working as expected s? still trying to figure that out     Help with:

-      - resources