[tor-project] Anti-censorship team meeting notes, 2022-06-02

meskio meskio at torproject.org
Thu Jun 2 16:26:46 UTC 2022


Hey everyone!

Here are our meeting logs:

http://meetbot.debian.net/tor-meeting/2022/tor-meeting.2022-05-26-16.00.html

And our meeting pad:

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

Next meeting: Thursday June 9nd 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 Tor.

== 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 28
			* must-do tickets: https://gitlab.torproject.org/groups/tpo/-/milestones/10
			* possible tickets: https://gitlab.torproject.org/groups/tpo/-/issues?scope=all&utf8=%E2%9C%93&state=opened&label_name%5b%5d=Sponsor%2028&milestone_title=None
		* Sponsor 96
			* https://gitlab.torproject.org/groups/tpo/-/milestones/24

== Announcements ==

	* anti-censorship irc channel: #tor-anticensorship @ irc.oftc.net

== Discussion ==

Endless loop on the latest snowflake:
	Tor NOTICE: Managed proxy "TorBrowser\Tor\PluggableTransports\snowflake-client.exe": broker failure timed out waiting for answer!
	Tor NOTICE: Managed proxy "TorBrowser\Tor\PluggableTransports\snowflake-client.exe": connection failed timeout waiting for DataChannel.OnOpen

	* Implement metrics to measure snowflake churn (https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/34075) is now under review. Comments are welcome (https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/95)
		* count disctinct proxy ips, to see how fast they change

	* enforce 2FA in gitlab
		* all accounts with group commit access have 2FA in gitlab already :)

== Actions ==

	* 

== Interesting links ==


== Reading group ==

	* We will discuss "Even Censors Have a Backup: Examining China's Double HTTPS Censorship Middleboxes" on June 23
		* https://dl.acm.org/doi/10.1145/3473604.3474559
		* 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 2022-06-02
Last week:
    - updated gitlab CI to include go v1.18 (snowflake#40144)
    - Remove redundant NAT check at standalone proxy startup (snowflake#40146)
    - resolved snowflake#40145
    - reviews
This week:
    - continued work on conjure PT
    - continue snowflake maintenance tasks
Needs help with:

dcf: 2022-06-02
	Last week:
		- set up access to snowflake-02 bridge site for shelikhoo https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40122#note_2808750
		- posted about other DTLS fingerprints that are being filtered in Russia https://gitlab.torproject.org/tpo/anti-censorship/censorship-analysis/-/issues/40030#note_2809393
	Next week:
		- look at STATUS VERSION proposal https://gitlab.torproject.org/tpo/core/torspec/-/merge_requests/63
	Help with:

meskio: 2022-06-02
	Last week:
			- use systemd to run bridgedb (team#72)
			- update debian package for snowflake (snowflake#40143)
			- don't use entropy in snowflake tests (snowflake!96)
			- contact cymru about their builtin bridges, as they have an old version of obfs4proxy
	Next week:
			- start working on gettor (rdsys#105)
			
Shelikhoo: 2022-05-26
   Last Week:
     - [Merge Request] Add Distributed Snowflake Server Support (snowflake!87)
     - [Merge Request] Distributed Snowflake Bridges (Javascript ver.) (snowflake-webext!29)
     - [Merge Request] Implement metrics to measure snowflake churn (https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/34075) (snowflake!95)
		- [Merge Request Awaiting] Add SOCKS5 forward proxy support to snowflake (snowflake!64)
		- [Discussion & Deployment] Migrating Controlling git repo to Tor Gitlab Instance (shelikhoo/LogCollectorAncillary#5) <- awaiting/blocked
   Next Week:
		  - [Coding] Distributed Snowflake Bridges (continue)
		  - [Coding & Deployment] Proposal: Centralized Probe Result Collector (anti-censorship/team#54)
		  - [Research & Coding] WebSocket + CDN Based Probe Control Connection Forwarder (shelikhoo/LogCollectorAncillary#3)
		  - [Merge Request] Implement metrics to measure snowflake churn (https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/34075)
		 - [Research & Discussion] HTTPT & V2Ray related

Itchy Onion: 2022-06-02
    Last week:
        - work on s28 issue 81 (race conditions in broker)
    This week:
        - continue working on snowflake !93 (add tests)
        - ongoing debugging with s28 (there are other issues, not sure if related to issue 81 yet)
        - working on issue 40117 (display NAT log type to stderr in nonverbose mode)


-- 
meskio | https://meskio.net/
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 My contact info: https://meskio.net/crypto.txt
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Nos vamos a Croatan.
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