Hi all,

Here are our meeting minutes:

http://meetbot.debian.net/tor-meeting/2020/tor-meeting.2020-04-23-17.58.html

And here is our meeting pad:

Anti-censorship work meeting pad --------------------------------

Next meeting: Thursday April 23th 18:00 UTC

Weekly meetings, every Thursday at 18:00 UTC, in #tor-meeting at OFTC (channel is logged while meetings are in progress).

== Goal of this meeting ==

Weekly checkin about the status of anti-censorship work at Tor. Coordinate collaboration between people/teams on anti-censorship at Tor.

== Links to Useful documents ==

* Our anti-censorship roadmap: https://gitlab.torproject.org/torproject/anti-censorship/roadmap/boards * Our roadmap consists of a subset of trac tickets. For 2020 Q1, the trac keyword is anti-censorship-roadmap-2020Q1 * Next planning session: last week of April * The anti-censorship team's wiki page: https://trac.torproject.org/projects/tor/wiki/org/teams/AntiCensorshipTeam * Past meeting notes can be found at: https://lists.torproject.org/pipermail/tor-project/ * GetTor's roadmap: https://gitlab.torproject.org/groups/torproject/anti-censorship/gettor-proje... * Tickets that need reviews: from sponsors we are working on: * https://trac.torproject.org/projects/tor/wiki/org/sponsors/Sponsor30 * https://trac.torproject.org/projects/tor/wiki/org/sponsors/Sponsor28 * Anti-censorship related tickets that we want other teams to fix: * https://pad.riseup.net/p/tor-anti-censorship-tickets-keep

------------------------- --- April 23th 2020 -- -------------------------

== Announcements ==

* We've now officially split snowflake into two repositories * Go implementation: gitweb.torproject.org/pluggable-transports/snowflake.git/ * Web-based proxy code: gitweb.torproject.org/pluggable-transports/snowflake-webext.git/ * Kyle, the researcher who is investigating Snowflake's network fingerprint, has found differences in Snowflake's DTLS handshake (different offered extensions) relative to Facebook Messenger, Hangouts, and Discord. He is planning to file a ticket with details.

== Discussion ==

*

== Actions ==

*

== Interesting links ==

*

== Reading group ==

* We will discuss "MassBrowser: Unblocking the Censored Web for the Masses, by the Masses" on April 30 * https://censorbib.nymity.ch/#Nasr2020a * 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 (related to anti-censorship work). Help with: - Something you may need help with.

phw: This week (2020-04-23): * Offboarding meeting for Tor's exit scanner. * Spent a bit of time looking into porting exitmap to Python 3. * Reviewed #32912, #33835, and #31528. * More improvements to script that tests BridgeDB's email autoresponder (#12802). * Some organisational tasks (TTP grant, DARPA PI meeting). * Asked around wrt status of meek-azure. * Moved forward with "censorship snapshot" (#28531). * In the process, improved our lightweight censorship analyser, which can help with that (#30794). * More thinking about feedback loop between BridgeDB and OONI. * There are similarities to Salmon: we may want to implement a simplified Salmon for this task. Next week: * Help with: * #28531

Gaba: () Last week (2020-03-30): * not much related to anti-censorship This week (planned): * anti-censorship retrospective

cecylia (cohosh): last updated 2020-04-23 Last week: - lots of meetings - discussed #28325 and #33953 with GeKo and boklm - revised solution to snowflake proxy failures (#33666) - revised and merged PRs to separate snowflake repos (#33593) - merged cleanup of gettor scripts (#32912) - popets things - sponsor 28 evaluation work - started looking at GetTor twitter responder and telegram bot work (#33036, #22011) This week: - get a tor browser android build running - start working on snowflake for android (#28672) - set up some kind of NAT topology testing suite (#25595) - look into setting up a TURN server (#25596) - figure out what we need to do to revive the twitter responder in GetTor (#33036) - look at old GetTor mirrors (#33893) Needs help with: - review of snowflake proxy failure solution (#33666)

juggy :

This week: - Researched XUL and dug into previous conversations around integrating Tor Launcher into Tor Browser, why porting to Web Extensions might not work, etc. Next week: - Implement audio captchas in moat, figure out how to reduce audio captcha request size - Keep studying BridgeDB Help with: -

arlolra: 2020-04-16 Last week: - start on #33365 - review of #33593 Next week: - follow ups to #33365 - review of #33666 - start on #31201 Help with: - review of #33365

dcf: 2020-04-23 Last week: - reviewed Go 1.13 upgrade (#32027) - commented on design for self-limiting failing proxies (#33666) Next week: - respond to feedback on turbotunnel merge branch (#33745) - branch for snowflake turbotunnel merge into Tor Browser - share access to the snowflake broker CDN configuration (#30510) Help with:

cjb: 2020-04-23 Last week: - gonna be afk with kids Next week: Help with:

agix:2020-04-23 Last week: - Kept working on #33835 Next week: - finalize #33835 - finalize #31528 Help with: -

catalyst: 2020-04-16 last week: - more work on #5304 (PT outbound bind address) - started looking at #29128 (assemble bridge line) this week: - more background research and work on s28/s30 tickets

thymbahutymba: 2020-04-02 Last week: - CI/CD pipeline for multiarch docker images, which has a problem with the apt tor version even though the apt repository have been changed into the Dockerfile. Next week: Help with: