Hey everyone,

Here are our meeting logs:

http://meetbot.debian.net/tor-meeting/2021/tor-meeting.2021-07-15-16.00.html

and our meeting pad:

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

Next meeting: Thursday July 15th 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 ==

Tor Browser 10.5 released with Snowflake.

https://blog.torproject.org/new-release-tor-browser-105

Peep the charts 👀

https://metrics.torproject.org/rs.html#details/5481936581E23D2D178105D44DB69...

https://metrics.torproject.org/userstats-bridge-transport.html?start=2021-01...

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

== Discussion ==

Snowflake usage metrics after stable release

How's the performance in places that are geographically far from the bridge?

Is the spike globally distributed or centered on certain countries?

Today's bridge-stats:

bridge-stats-end 2021-07-14 17:36:29 (86400 s)

bridge-ips us=552,ru=456,by=336,cn=216,ir=168,de=144,gb=120,in=88,fr=80,br=72,it=64,ca=48,dz=48,tr=48,nl=40,at=32,...

== Actions ==

== Interesting links ==

snowflake-client.exe in TB 10.5 detected as malware

https://lists.torproject.org/pipermail/tor-talk/2021-July/045752.html

https://www.reddit.com/r/TOR/comments/of1gu3/windows_defender_latest_tor_bro...

https://gitlab.torproject.org/tpo/web/support/-/issues/237

== 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 2021-07-15 Last week: - reviewed snowflake!47 - finished moat shim (bridgedb#32276) - bridgestrap reviews - bumped version of snowflake - updated snowflake proxy Docker image - attended some of PETS - deployed changes to snowflake.tp.o (snowflake-webext!18) - looked into snowflake performance tuning as a result of dcf's email - https://lists.torproject.org/pipermail/anti-censorship-team/2021-July/000185...

- opened https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...

- did some cleaning up of Snowflake repository READMEs (snowflake!49) This week: - followup review for rdsys!11 - more work on snowflake documentation (snowflake#40031) - check and maintain snowflake censorhsip measurements (snowflake#32657) - start work on a Conjure PT for Tor Needs help with: - review snowflake!48 (kcp + smux parameter tuning) - review of snowflake!49

arlolra: 2021-07-08

Last week:

- More snowflake!39

Next week:

- Maybe get back to snowflake-webext #10

Help with:

-

dcf: 2021-07-15

Last week:

Next week:

- AMP cache rendezvous for snowflake https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowf...

- look at KCP/smux buffer size increase 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: 2021-07-15

Last week:

- fix bridgestrap CollecTor bug so it properly reports if bridges are functional (bridgestrap!8)

- short bridgestrap CollecTor metrics by the hashed fingerprint to don't reveal information (bridgestrap!9)

- deploy bridgestrap with CollecTor metrics

- report number of connected clients from snowflake webext to the broker (snowlfake-webext!19)

- gettor rdsys integration (rdsys!11 rdsys#32)

- document our server setup in TPA wiki

Next week:

- submit the "final" gettor rdsys integration (rdsys!11 rdsys#32)

Help with:

-