[tor-project] Anti-censorship meeting notes, 2021 December 16

Hi everyone!

Here are our meeting logs:

http://meetbot.debian.net/tor-meeting/2021/tor-meeting.2021-12-16-15.59.html

and our meeting pad:

Anti-censorship work meeting pad

···

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Next meeting: Thursday January 6th 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.

== Links to Useful documents ==

    Our anti-censorship roadmap:

    Roadmap: Development · Boards · Anti-censorship · GitLab

    The anti-censorship team's wiki page:

    Home · Wiki · The Tor Project / Anti-censorship / Team · GitLab

    Past meeting notes can be found at:

    The tor-project Archives

    Tickets that need reviews: from sponsors we are working on:

    All needs review tickets: Merge requests · Anti-censorship · GitLab

    Sponsor 30

    Sponsor 30 - Objective 2.1 · The Tor Project · GitLab

    Sponsor 30 - Objective 2.2 · The Tor Project · GitLab

    Sponsor 30 - Objective 2.3 · The Tor Project · GitLab

    Sponsor 30 - Objective 2.4 · The Tor Project · GitLab

    Sponsor 28

    must-do tickets: Sponsor 28: Reliable Anonymous Communication Evading Censors and Repressors (RACECAR) · The Tor Project · GitLab

    possible tickets: Issues · The Tor Project · GitLab

== Announcements ==

    New default bridge in TorBrowser: Relay Search

== Discussion ==

    Current status in Russia

    meek-azure now unblocked?

    seems to be working OONI reports of Tor blocking in certain ISPs since 2021-12-01 - #79 by ValdikSS - Russia - NTC

    Moat is no longer distributing old bridges in Russia

    remove old bridges from moat for russia (#47) · Issues · The Tor Project / Anti-censorship / Team · GitLab

    The new Telegram bot's bridges were all blocked but one

    we need more mirrors of *.torproject.org as they get blocked

    snowflake bridge has doubled its clients Relay Search

    the DTLS fingerprint fix seems to work

    The new bridge obfs4 deusexmachina is already blocked (from 11.0.2, released 2021-12-08)

    There is an article saying that an organization is petitioning to have Tor Browser removed from the Google and Apple app stores in Russia

    В Российском фонде мира призвали Apple и Google удалить из маркетов анонимный браузер Tor - Газета.Ru | Новости

    Further Snowflake fingerprint fixes

    anyone working on adding ALPN support to DTLS Client Hello? Support for ALPN extension · Issue #408 · pion/dtls · GitHub

    dcf will upgrade the standalone proxies we operate

    meskio will upgrade the docker image

    need updates for the debian package and freebsd port as well

    next meeting Thursday 6 January 2022

    we have now 2k bridges Servers – Tor Metrics

== Actions ==

== Interesting links ==

    blizzard, I2P Plugin for Donating a Snowflake

    Snowflake proxy plugin for I2P

== Reading group ==

    We will discuss "Meteor: Cryptographically Secure Steganography for Realistic Distributions" on 2022-01-??

    https://dl.acm.org/doi/10.1145/3460120.3484550

    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 2021-12-09
Last week:
    - preliminary dump of snowflake shadow simulation scripts (needs more documentation and cleanup)
        - Cecylia Bocovich / snowflake-simulation · GitLab
    - hooked up our reachability measurements to grafana
    - s28 PI meeting
    - handled snowflake probe test outage (responded to alert)
    - snowflake DTLS fingerprinting fixes
        - DTLS fix: Do not include IP addresses as SNI values by cohosh · Pull Request #407 · pion/dtls · GitHub
        - Tor Browser MR: Point to a forked version of pion/dtls with fingerprinting fix (!375) · Merge requests · The Tor Project / Applications / tor-browser-build · GitLab
    - bump version of Snowflake in Tor Browser
        - Bug 40394: Bump version of Snowflake to 221f1c41 (!376) · Merge requests · The Tor Project / Applications / tor-browser-build · GitLab
This week:
    - finish documenting and cleaning up shadow simulation scripts
    - use these snowflake + shadow scripts to do more performance testing
    - ensure everything is in place for end of phase II for s28
        - Sponsor 28: End of phase 2 · Milestones · The Tor Project / Anti-censorship / Team · GitLab
    - follow up on Snowflake DTLS fingerprinting work
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 Create RTCPeerConnections in workers · Issue #77 · w3c/webrtc-extensions · GitHub

    Help with:

    -

dcf: 2021-12-16

    Last week:

    - had a talk about push notifications Proposal: Push Notification Based Signaling Channel (#45) · Issues · The Tor Project / Anti-censorship / Team · GitLab

    - posted an analysis of the quantity of BridgeDB captcha images The anti-censorship-team December 2021 Archive by thread

    Next week:

    - upgrade standalone snowflake proxies for the new DTLS fingerprint

    Help with:

agix:2021-11-25

    Last week:

    - More work on gettor for twitter

    Next week:

    - Continue to work on gettor-twitter

    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: 2021-09-23

    Last week:

    - Worked on uTLS for broker negotiation (#40054) · Issues · The Tor Project / Anti-censorship / Pluggable Transports / Snowflake · GitLab re: utls for broker negotiation

    - Had conversation with someone about upstream utls http round tripper feat: sketch out utls http.RoundTripper by bassosimone · Pull Request #74 · refraction-networking/utls · GitHub

    - Too busy with work :confused:

    Next week:

    - _Really_ want to get a PR for utls round tripper

meskio: 2021-12-16

    Last week:

    - russia censorship fires

    - rotate blocked bridges in telegram bot

    - implement BridgeDB country bridge blocklist and block nonworking moat bridges in russia (team#47)

    - review BridgeDB mock clean up (bridgedb!29)

    - review docker-obfs4-bridge change the nickname (docker-obfs4-bridge!6)

    - merge docker-snowflake-proxy improvements (docker-snowflake-proxy!3)

    - DRL implementors meeting

    Next week:

    - metrics bridge distributor metrics for rdsys (rdsys#67)

Shelikhoo: 2021-12-16
   Last Week:
       - [Merge Request Awaiting] Add SOCKS5 forward proxy support to snowflake(snowflake!64)
       - [Merge Request Awaiting] Multi-arch docker image support with Dockerfile refactor for probetest(probetest!1)
       - [Merge Request] Add Google backend support for gettor updater
       - [Merge Request] Add callbacks in the client for key events during snowflake connections(snowflake#40076)
       - [Merge Request Review] Default to the main branch and cache go modules

      - [Investigate] Random Like Stream Blocking on Certain IDC from gfw_report

      - [Investigate] Implement metrics to measure snowflake churn(snowflake#34075)

      - [Investigate] [Russia] Some ISPs are blocking Tor

      - [Discussion] Proposal: Support for Dynamic IP obfs4 bridges with unattended proxy information update(aka "Subscription")

       - [Discussion] Implement metrics to measure snowflake churn(snowflake#34075)

      - [Discussion] Proposal: Push Notification Based Signaling Channel

      - [Discussion] Proposal: HTTP(S) Download Test(bridgestrap#30)

   Next Week:
       - [Discussion] Designing the Container Layout for rdsys
       - [Discussion] Proposal: Support for Dynamic IP obfs4 bridges with unattended proxy information update(aka "Subscription")
       - [Discussion] Implement metrics to measure snowflake churn(snowflake#34075)
       - [Discussion] Proposal: Push Notification Based Signaling Channel
       - [Investigate] rdsys Deployment Environment

HackerNCoder: 2021-12-16
This week:
    Last/done:
        Setup web mirror on tor.encryptionin.space
    Next:
        Get (new VPs with) new IP and setup new web mirror on new domain

--
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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