- anti-censorship-team - lists.torproject.org

Meeting on July 4 cancelled
by Philipp Winter 24 Jun '19

24 Jun '19

Let's cancel the anti-censorship meeting on July 4. It's a national holiday in the U.S. and several of our developers won't be around. Cheers, Philipp

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Future of Traffic obfusication
by Free Beer 11 Jun '19

11 Jun '19

> Neat. Yes, and all built with existing components. In terms of your chart of Fri May 31 05:02:35 UTC 2019, the original Shadowsocks (SS) was at the look-like-nothing end. ShadowsocksR (SSR), by contrast, offers various experiments in protocol mimicry. Of course, as the censorship arms race escalates, you have to become more and more accurate in your mimicry. There are mutterings on the Internet that _some_ original SS servers are now being detected. No one knows for sure what methods the Great Firewall (GFW) uses. Entropy analysis is one possibility. I see this was mentioned in your reference "Seeing through Network-Protocol Obfuscation." Certain detection methods apply only to private servers. For example, the GFW may simply look to see whether the destination IP address belongs to one of the popular low-cost VPS providers with good latency to China. Traffic metrics may also play a part. If all of your traffic goes to one IP address, and you are the only person who sends traffic that IP address, then it sure looks like some kind of private proxy. On the other hand, certain detection methods apply only to a public project like Tor. These include picking bridge IP addresses out of Github, and requesting new bridges by email every day for as long as it takes to enumerate them. In both cases, we could call such methods "obfuscation agnostic." In other words, it doesn't matter how sophisticated your obfuscation techniques become. You need to think about protecting your server addresses from detection. Sent with ProtonMail Secure Email.

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Future of Traffic obfusication
by Free Beer 09 Jun '19

09 Jun '19

> does anyone have any good predicitions about where > the traffic obfusication is in 5 years ? The experience in China is that any given anti-censorship method will be effective for only 4 years before it is blocked. Therefore, what will work in 5 years time has not yet been invented. :) Just out of interest, for countries where both Tor and Tor bridges are blocked by a firewall, you can configure Tor Browser to use ShadowsocksR (SSR) as a proxy server. I put a quick 1'19" proof-of-concept video up on YouTube with the title Tor浏览器+ShadowsocksR(SSR)客户端配置 Client Configuration: https://www.youtube.com/watch?v=VRGZ4dOYv1Q Sent with ProtonMail Secure Email.

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Re: [anti-censorship-team] Future of Traffic obfusication
by Flipchan 07 Jun '19

07 Jun '19

Is there any research or developement done in anti correlation protocols such as system based on ring signatures such as the ring transactions in monero? On June 7, 2019 3:00:09 PM GMT+03:00, anti-censorship-team-request(a)lists.torproject.org wrote: >Send anti-censorship-team mailing list submissions to > anti-censorship-team(a)lists.torproject.org > >To subscribe or unsubscribe via the World Wide Web, visit > https://lists.torproject.org/cgi-bin/mailman/listinfo/anti-censorship-team > >or, via email, send a message with subject or body 'help' to > anti-censorship-team-request(a)lists.torproject.org > >You can reach the person managing the list at > anti-censorship-team-owner(a)lists.torproject.org > >When replying, please edit your Subject line so it is more specific >than "Re: Contents of anti-censorship-team digest..." > > >Today's Topics: > > 1. Future of Traffic obfusication (Flipchan) > > >---------------------------------------------------------------------- > >Message: 1 >Date: Thu, 06 Jun 2019 22:53:32 +0300 >From: Flipchan <flipchan(a)riseup.net> >To: anti-censorship-team(a)lists.torproject.org >Subject: [anti-censorship-team] Future of Traffic obfusication >Message-ID: <1FA6176E-CDB2-483C-B6AD-7987A26371AF(a)riseup.net> >Content-Type: text/plain; charset="utf-8" > >Hey all, > >I am working on a podcast episode about traffic obfusication, and there >is a lot of nice whitepapers talking about potentially anonymous ways >of shuffeling traffic. > >However, I am intresting in the future of traffic obfusication and the >large problems that traffic obfusication faces today, does anyone have >any good predicitions about where the traffic obfusication is in 5 >years ? > >Or do we wait and see for the next big Whitepaper and PoC code ? > >What do you think? > > >Thanks in advance >Sincerely >Flipchan > >

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Future of Traffic obfusication
by Flipchan 06 Jun '19

06 Jun '19

Hey all, I am working on a podcast episode about traffic obfusication, and there is a lot of nice whitepapers talking about potentially anonymous ways of shuffeling traffic. However, I am intresting in the future of traffic obfusication and the large problems that traffic obfusication faces today, does anyone have any good predicitions about where the traffic obfusication is in 5 years ? Or do we wait and see for the next big Whitepaper and PoC code ? What do you think? Thanks in advance Sincerely Flipchan

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roadmap update
by Gaba 28 May '19

28 May '19

Hi! We need to update the roadmap for the team. I'm sure there may be other things coming up that may have a higher priority now than what we though back in January. Is there any date next week that works better for you two? We only need one hour (or less) where we reorganize the roadmap, sorting out priorities, adding anything else or removing something that does not makes sense to work on anymore. cheers, gaba ps. Sorry, I didn't add this to my TODO list and then I forgot. -- Project Manager: Network, Anti-Censorship and Metrics teams and OONI support gaba at torproject.org she/her are my pronouns GPG Fingerprint EE3F DF5C AD91 643C 21BE 8370 180D B06C 59CA BD19

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No IRC meeting on May 23
by Philipp Winter 20 May '19

20 May '19

Hi team, Cecylia, Roger, and I will be attending a project meeting on Thursday and Friday, and won't have time to attend the meeting. Let's cancel this weeks' meeting and meet again next week, on May 30. Cheers, Philipp

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BridgeDB proposal for Tor's research safety board
by Philipp Winter 25 Apr '19

25 Apr '19

During today's IRC meeting, I mentioned that we should submit the data collection that we intend to do as part of <https://bugs.torproject.org/9316> to Tor's research safety board. I had a chance to write a draft of the proposal -- you can find it attached to this email. Please let me know your thoughts. I'm particularly curious if you can think of risks that I did not consider, and on the heuristics we intend to collect to identify bots. Thanks, Philipp

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Reminder: IRC meeting time moved from 20:00 to 17:00 UTC
by Philipp Winter 24 Apr '19

24 Apr '19

I wanted to remind everyone that we permanently moved our meeting time from 20:00 to 17:00 UTC. Hopefully, this will make it easier for people outside the Americas to attend. The following page tells you what time this is in your part of the world: <https://www.timeanddate.com/worldclock/fixedtime.html?iso=20190425T1700> Our next meeting is tomorrow, on 2019-04-25 at 17:00 UTC in #tor-meeting. Hope to see you there! Cheers, Philipp

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Hi :)
by Carolin Zöbelein 19 Apr '19

19 Apr '19

Hi, I'm happy to be on this list and hope to be helpful with anti- censorship work. Best regards and see you on irc, Samdney :) -- ----------------------------------------------------------------------- Carolin Zöbelein / Nick: Samdney PGP: D4A7 35E8 D47F 801F 2CF6 2BA7 927A FD3C DE47 E13B -----------------------------------------------------------------------

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