Hey everyone!

Here are our meeting logs:

http://meetbot.debian.net/tor-meeting/2021/tor-meeting.2021-09-09-16.00.html

and our meeting pad:

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

Next meeting: Thursday September 9th 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 checkin about the status of anti-censorship work at Tor. Coordinate collaboration between people/teams on anti-censorship at Tor.

== Announcements ==

Job opening on the anti-censorship team: https://www.torproject.org/about/jobs/software-developer-anticensorship-2/ \o/

== Discussion ==

- what's going wrong with these connection failures?

- https://bugs.torproject.org/tpo/anti-censorship/pluggable-transports/snowfla... - could just be getting unlucky with non-working proxies, and reaching the SOCKS timeout - will ask them to enable the snowflake-client log - is it ok to change the IP address of a bridge periodically (e.g. once per year)? - https://lists.torproject.org/pipermail/tor-relays/2021-August/019788.html - it's ok, bridgedb will start distributing the new IP address (existing users of the bridge lose access) - bridges are assigned to pools based on a hash of the fingerprint; is it possible for a bridge to fall into the manual, human-distributed pool that way? or are all those bridges hand-selected?

== Actions ==

== Interesting links ==

Blocking of DNS/DoH/DoT servers of Google/Cloudflare/OpenDNS in Russia, begins today(?)

https://github.com/net4people/bbs/issues/81

https://ntc.party/t/doh-dns-google/1225

Disruptions of BitTorrent and WireGuard in Russia last week

https://github.com/net4people/bbs/issues/76#issuecomment-915544316

https://github.com/net4people/bbs/issues/83

https://ntc.party/t/an-open-encyclopedia-of-internet-censorship-persian/1223

== Reading group ==

We will discuss "BlindTLS: Circumventing TLS-based HTTPS censorship" on 2021-09-23

https://dl.acm.org/doi/10.1145/3473604.3474564

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 2021-09-09 Last week: - provided usecase for v3 service worker implementation of RTCPeerConnection - https://github.com/w3c/webextensions/issues/72#issuecomment-912675268 - https://github.com/w3c/webrtc-extensions/issues/77#issuecomment-912667886 - finished up and merged rdsys#38 - sponsor 28 scrimmage work - hiring tasks - started work on snowflake library v2 API changes (snowflake#40063) This week: - Away next week Needs help with:

arlolra: 2021-08-12

Last week:

- Migrate to v3 of the webextension manifest

Next week:

- Maybe get back to snowflake-webext #10

- Write up the pitch for our use case for supporting creating PeerConnections in background service workers https://github.com/w3c/webrtc-extensions/issues/77

Help with:

-

dcf: 2021-09-09

Last week:

- fixed meek-client test errors https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/meek/...

- commented on goptlib go.mod issue https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...

Next week:

- identify cause and fix for the goptlib go.mod issue https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...

- reply to Alexander Mages re SCTP pluggable transport https://lists.torproject.org/pipermail/anti-censorship-team/2021-August/0001...

- suggest enabling logs in https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...

Help with:

agix:2021-07-15

Last week:

-Off due to final exams

Next week:

-Work on bridgebox for rdsys

-More research on httpt #4

Help with:

-

hanneloresx: 2021-3-4

Last week:

- Submitted MR for bridgestrap issue #14

Next week:

- Finish bridgestrap #14

- Find new issue to work on

Help with:

-

maxb: 2021-07-15

Last week:

- Opened https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf... re: utls for broker negotiation

- Worked on github.com/max-b/nat-testing for https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...

- Added a snowflake-proxy-no-nat and a snowflake-client-no-nat to help with debugging

- Successfully making connections from snowflake-client and snoflake-client-no-nat through the snowflake-proxy-no-nat, but not having any success with the snowflake-proxy (with nat).

- Added a local dockerized STUN server

Next week:

- Use wireshark to figure out the difference between successful snowflake-proxy-no-nat and unsuccessful snowflake-proxy-nat

- Work on implementing different NAT types, particularly in a way that's conducive to automatic testing

- Add testing wrapper w/ "pass/fail" conditions

meskio: 2021-09-09

Last week:

- snowflake debian package (snowflake#19409)

- failed gitlab uploader implementation for gettor in rdsys (rdsys#43)

- start censorship snapsot available on moat (bridgedb#40025)

- review networkstatus documents for running flag in rdsys (rdsys!14)

Next week:

- implement censorship snapsot available on moat (bridgedb#40025)

- add more providers to gettor (rdsys#43)

Help with:

-