[tor-project] Anti-censorship team meeting notes, 2023-02-23

[Itchy Onion]

Hey everyone!
Here are our meeting logs:
http://meetbot.debian.net/tor-meeting/2023/tor-meeting.2023-02-23-15.58.log.html

And our meeting pad:
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    THIS IS A PUBLIC PAD

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Anti-censorship
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Next meeting: Thursday, March 02 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 the Tor Project and Tor community.

== 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-do 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

    Sponsor 139 <-- hackerncoder, irl, joydeep, meskio, emmapeel working on it

    https://pad.riseup.net/p/sponsor139-meeting-pad


== Announcements ==


== Discussion ==

    What is the status of activating the snowflake-02 bridge in Orbot?

    snowflake-01 is still pretty much saturated, and snowflake-02 relatively almost unused

    no news yet from Orbot on status of deployment

    latest Orbot release was 2023-01-13

    will add to S96 agenda and discuss in 2 weeks (On March 2rd) if they are not around

    forking obfs4proxy, a new name?

    https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/obfs4/-/issues/40010

    rdsys is using onbasca to measure bridge bandwidth

    https://gitlab.torproject.org/tpo/anti-censorship/rdsys/-/merge_requests/76

    bridgestrap is reporing most bridges as non-functional

    looks similar to an old issue: https://gitlab.torproject.org/tpo/anti-censorship/bridgestrap/-/issues/7

    rdsys can handle the situation and will not be a big problem if is not fixed fast


== Actions ==

    meskio will write a survival guide on onbasca

    move the ampcache snowflake fallback forward


== Interesting links ==

    https://explorer.ooni.org/chart/mat?probe_cc=IR&since=2023-01-20&until=2023-02-20&time_grain=day&axis_x=measurement_start_day&test_name=web_connectivity&domain=cdn.sstatic.net

    continued sporadic blocking of cdn.sstatic.net in Iran

    https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40068

    https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40250


== Reading group ==

    We will discuss "Detecting Tor Bridge from Sampled Traffic in Backbone Networks" on March 9

    https://www.ndss-symposium.org/wp-content/uploads/madweb2021_23011_paper.pdf

    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 2023-02-16
Last week:
    - FOCI workshop prep
    - Lox tor browser integration work in progress
        - https://gitlab.torproject.org/cohosh/tor-browser/-/tree/lox-integration
This week:
    - Lox tor browser integration
    - continue work on conjure client-side recovery
Needs help with:

dcf: 2023-02-16

    Last week:

    - opened issue to restart snowflake bridges for haproxy CVE-2023-0056, CVE-2023-25725 https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40253

    Next week:

    - restart snowflake bridges https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40253

    - migrate goptlib to gitlab https://gitlab.torproject.org/tpo/anti-censorship/team/-/issues/86#note_2823122 (for real)

    Help with:


meskio: 2023-02-23
   Last week:
       - integrate onbasca into rdsys to test bridge speed (rdsys#150)
       - deploy onbasca in polyanthum
       - patch onbasca API to be easier to parse (onbasca!60)
       - investigate bridgestrap issue, is reporting 30% of functional bridges
   Next week:
       - Vacation!!!

Shelikhoo: 2023-02-16
   Last Week:

    - [Merge Request Awaiting] Add SOCKS5 forward proxy support to snowflake (snowflake!64)

    - [Research] HTTPT Planning https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/httpt/-/issues/1

    - Try to find a place to host another vantage point (not working so far)

    - WebTunnel @ TorBrowser mobile

   Next Week:

    - [Research] WebTunnel planning (Continue)

    - Try to find a place to host another vantage point

    - WebTunnel @ TorBrowser mobile


onyinyang: 2023-02-23
    Last week:
        - Lox wasm bindings for Tor integration:
            - encrypted bridge table (this took longer than expected due to confusion about needing to implement deserialize)
            - level up
    This week:
        - continuing with bindings for the rest of the Lox protocols:
            - issue invitation
            - check blockage
            - blockage migration
    Help with:

         - questions about best way to handle timing for freshness credentials (fresh for x time period or fresh until x time each day)<this is not especially urgent>


Itchy Onion: 2023-02-23
    Last week:

    - Continue working on issue #40108 (standalone proxy bind specific IP)

    - Created issue #40252 (NAT probetest for standalone proxy)

    - Foci

    - Work on updating snowflake plugin for the latest race version  (code freeze on Friday)

    This week:

    - Holiday

    - Contine working on issue #40252 (NAT probetest for standalone proxy)


hackerncoder: 2023-02-23
    last week:
        - work on monitoring bridges health
    Next week:
        - getting ooni-exporter to work with torsf (snowflake)
        - work on "bridgetester"?

cece: 2022-12-22
    This week:
        - working on creating a dummy WhatsApp bot
    Next week:
        - My bot is not yet working as expected s? still trying to figure that out
    Help with:

         - resources


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