[tor-project] Anti-censorship team meeting notes, 2023-02-16
Shelikhoo
shelikhoo at torproject.org
Thu Feb 16 16:49:00 UTC 2023
Hey everyone!
Here are our meeting logs:
http://meetbot.debian.net/tor-meeting/2023/tor-meeting.2023-02-16-15.58.html
And our meeting pad:
Anti-censorship work meeting pad
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THIS IS A
PUBLIC PAD
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Anti-censors
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Next meeting: Thursday, February 23 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 ==
* Tor Browser 12.0.3 released with Hello Verify Request mitigation
for Snowflake
* https://blog.torproject.org/new-release-tor-browser-1203/
* we are in the process of upstreaming, last remaining piece is
https://github.com/pion/webrtc/pull/2407
* success reports:
*
https://ntc.party/t/second-snowflake-bridge-available-for-testing/3445/12
*
https://gitlab.torproject.org/tpo/anti-censorship/connectivity-measurement/bridgestatus/-/blob/main/recentResult_russia
== 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 if they are not
around
* Proposal for reading group:
*
https://www.ndss-symposium.org/wp-content/uploads/madweb2021_23011_paper.pdf
* Detecting Tor Bridge from Sampled Traffic in Backbone Networks
* "Current researches on Tor bridge detection have used a small
amount of complete traffic, which makes their methods not very practical
in the backbone network. In this paper, we proposed a method for the
detection of obfs4 bridge in backbone networks. To solve current
limitations, we sample traffic to reduce the amount of data and put
forward the Nested Count Bloom Filter structure to process the sampled
network traffic. Besides, we extract features that can be used for
bridge detection after traffic sampling. The experiment uses real
backbone network traffic mixed with Tor traffic for verification."
== Actions ==
* We should make a ticket for pion to cache its stun answers when
possible, because right now it surprises us by asking way more stun
questions than it actually needs to.
* is this about DNS?
* BTW stun.stunprotocol.org is going away:
https://groups.google.com/g/stunprotocol/c/upVwaG97ggY/m/3ddUBGA_FAAJ
* it's been removed from proxies and Tor Browser clients
(https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40241)
and circumvention settings, but is likely still being used by Orbot
* We might want to be able to spin up our own stun servers, on our
own ip/port, for debugging. We should talk to TPA about that goal at
some point (not urgent).
== Interesting links ==
*
== 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: 2023-02-16
Last week:
- integrate onbasca into rdsys to test bridge speed (rdsys#150)
- UAE circumvention settings configuration doesn't seem to be
necesary (team#106)
- merge whatsapp integration in rdsys (rdsys#74)
- review bridgestatus README (bridgestatus!1)
Next week:
- integrate onbasca into rdsys to test bridge speed (rdsys#150)
- deploy onbasca in polyanthum
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: 2023-02-16
Last week:
- Lox wasm bindings for Tor integration:
- public keys
- open invitation
- trust promotion
- trust migration
This week:
- continuing with bindings for the rest of the Lox protocols:
- encrypted bridge table
- level up
- 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: 2023-02-16
Last week:
- Continue working on issue #40108 (standalone proxy bind
specific IP)
- RACE T&E meeting
This 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)
hackerncoder: 2023-02-02
last week:
- Lunar New Year break
Next week:
- getting ooni-exporter to work with torsf (snowflake)
- work on monitoring bridges health
- 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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