tor-dev April 2015

tor-dev@lists.torproject.org

72 participants
62 discussions

Tor Summer of Privacy [ Incorporating ruleset testing into https-everywhere release process ]
by karan grover 09 Apr '15

09 Apr '15

Hello there! I am Karan Grover. I am a 2nd year computer science student at IIIT Delhi. I am a part of my college's Cybersecurity Education and Research Center, which is the first of its kind in the country. I have worked primarily in the field of Privacy and Security of Online Social Media (PSOSM). I am interested in contributing to Tor as a part of Tor Summer of Privacy. The project I am interested in working on is *Incorporating ruleset testing into https-everywhere release process*. I have been understanding the codebase of *https-everywhere-checker, *and am now quite familiar with it. I would like to discuss further about what the project entails. I contribute to open source every now and then, but am now looking to be an active open source contributor and Tor seems to align with my interests. Looking forward to your reply. Thank you.

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Orfox (Firefox for Android) - Recent Updates
by Amogh Pradeep 09 Apr '15

09 Apr '15

Hey guys, At the Valencia meet I got Orfox building again with the latest mozilla code and since then, I've been trying to get the project back on track. The current repo can be found at[0] After going through the source code for firefox for andoroid, these were the network related findings that I've made. The application uses maily 3 layers to work. 1) The core layer, written in C++. 2) A JS layer with some more functional code. 3) A Java layer that makes uses the Android API's and other code used for android. Out of the 3 layers, 2 of them make network calls. 1) The C++ layer. There is an advantage of this layer making the network calls as all the calls made by this layer are proxied. They obey the fennec settings for proxy that has currently been set at mozilla-central/mobile/android/app/mobile.js . Hence, we do not need to bother about setting proxy to these connections and calls. 2) The Java layer. The Java code, the code run by android also has many network calls but the problem is that these calls are not done obeying the tor proxy and hence they are harmful. List of places where these calls are made are: a) any class which imports org.apache.* (commons.net.ftp.*, http.*): build/mobile/sutagent/android/DoCommand.java build/mobile/sutagent/android/SUTAgentAndroid.java mobile/android/base/distribution/Distribution.java mobile/android/base/favicons/LoadFaviconTask.java mobile/android/base/tests/BaseRobocopTest.java b) The browser also seems to be using another library for network communications and that lies at mobile/android/thirdparty/ch/boye/httpclientandroidlib This library seems to have proxy support but the calls made to this library have not been proxied, a list of those are [1] NOTE: Not all these classes listed there make network calls, I will make a shorter list of this in the next few days. [0] https://github.com/amoghbl1/gecko-dev/tree/dev_orfox [1] https://dxr.mozilla.org/mozilla-central/search?q=ch.boye.httpclientandroidl… Feedback on what you think would be very useful and much appreciated. Best, amoghbl1

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Aspirant for Tor Summer of Privacy ( for Improving Tails)
by Saket Sinha 08 Apr '15

08 Apr '15

Hi, I would like to participate to Tor Summer of Privacy by contributing to "Improve Tails by working on Debian". I have worked on Debian packaging and build systems and find this project a match for my technical skills. Kindly let me know how to go ahead with this. Regards, Saket Sinha

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Please vote on times for the Pluggable Transports, Bridges, and BridgeDB Meeting!
by isis 07 Apr '15

07 Apr '15

Hello! Did you have an interest in attending the Pluggable Transports Meeting v1.0? Well then, you will certainly be excited to here about the *BRAND NEW* Pluggable Transports Meeting v2.0!!!! *NOW INCLUDING DEVELOPMENT DISCUSSION OF BRIDGEDB AND BRIDGES IN GENERAL* That's 3 meetings for the price of 1!! Wow!!! Please take a moment away from your undeniable shock and ecstatic joy at this great news to vote for a new time for this combined meeting: http://doodle.com/tn28wgzw8iydpznp Thanks! -- ♥Ⓐ isis agora lovecruft _________________________________________________________ OpenPGP: 4096R/0A6A58A14B5946ABDE18E207A3ADB67A2CDB8B35 Current Keys: https://blog.patternsinthevoid.net/isis.txt

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Contact Stem example authors.
by Lluís 06 Apr '15

06 Apr '15

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Hello everybody, After completing the "Stem" tutorial I tried to run one of the examples it points to, the "RTT Prober". I succeeded. However, after patching, recompiling and running the tor version they recommend, I had to change the python sources. I would share my results, but I really don't know how to contact the authors. May someone put me in touch with them ? Thanks, Lluís -----BEGIN PGP SIGNATURE----- iQIcBAEBCgAGBQJVImFvAAoJEJOS0D3m/rNlr3gP/1OEQI2NBAvEEAdTVgRPpuoc VMDnKt1PdjWDy+HTPyXAqki5eVzh8dyOYAla8yg38bxr5wCL1relUhkQzFyQb61h wXBTqvPzgJQOfcVj/V7h3CBPzkbXgfyaJIuOD0+NvSBLVf9W4keigA7cZ7uUE7d8 UQKnj30pFjC98CZt9Uq5ziyQqxq3xzzNHQfu5YE9YpQdYy6fm5t37I4Qm7ZXxin5 JI3nxvL34CKKXgBkxsqf+zY8f+Yoo7uFl1n+Fm+wyXc0aqi4MTzjHY7tm0cvgg/i qtxcBxJlLQu73srrbMXW9T4+o4dgRtegN8/hvRPnSOw7c520G8/2HODJ+EtEHXGm eFnNnZDHtOCjzCq9R8QcHXlEtSdXRdfxh3uI5AhPzEIM+Mx3Vtl8Y8lSMgsR0anD 0B0mGd25zgS7aLk6tuPzTKJ4B7ae1k2jsWYY3z4mziriGr+s61SiS0uWDdH3cUJb EnKVii5N5w0Tn2pJwStJrlecUkgHe6gTIJ1U5YYY2Raa/+sKKRDABAOUH+j2qV3n TL5utyQ+koszVwEreRf6q6IadHH1PxmqNd6MG6WLtejYWEqeWJy8BhK90HeOShTG ckR9OxeO5ZIZBOO8+XmaPdF8mam+hQxDU079rmoH3X+dvXVt+jPpcW+vEBzzwiG1 yx21KPu21u/TiAR6KbDd =pYKC -----END PGP SIGNATURE-----

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Tor Summer of Privacy
by Damian Johnson 06 Apr '15

06 Apr '15

Do you want to make Tor even better, and get paid in the process? If you are a student, we have good news for you: the Tor Project is pleased to announce our first Summer of Privacy! https://trac.torproject.org/projects/tor/wiki/org/TorSoP Thanks to Google, over the last eight years Tor has mentored 53 students over summers. This year the program was trimmed back to make room for new organizations. So, rather than wait another year we're starting a program of our own! The Tor Summer of Privacy is a pilot program for students that want to collaborate and develop privacy tools. So why apply? * You will work with a world-class team of anonymity experts and developers on an anonymity network that is already protecting millions of people daily. * We only write free (open source) software. The tools you make won't be locked down or rot on a shelf. * Your work could contribute to academic publications. Tor development raises many interesting research questions. * You can work your own hours in your own locations. As long as you get the job done, we don't care about the process. * ... oh, and of course there's also the $5,500 stipend for the summer. :P We are looking for great coders who are self-motivated and able to work independently. The deadline for applications is April 17th, 2015 which is right around the corner, so don't be shy - apply!

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multi-instance tor with a single torrc
by Nusenu 03 Apr '15

03 Apr '15

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Hi Pascal, (OpenBSD tor package maintainer) (splitting this part off to tor-dev, since it is not suited well for tor-relays I guess) For the interested reader this discussion started here [1]. Pascal Stumpf: >> Multi-instance support isn't something that's provided by >> OpenBSD's rc.d(8) subsystem, and I doubt it ever will be. Too >> much complexity for something that's more of a crutch to work >> around few applications' limitations than something universally >> needed and useful. > >> I think the real solution would be to talk to upstream about >> improving MP scalability. Even if it's just something as >> primitive as forking a child for every ORPort directive in >> /etc/tor/torrc, it would be much easier than having to keep track >> of a bazillion individually started tor instances, all with their >> own configuration files. I guess this (forking one tor instance per ORPort line) sounds a lot simpler than it actually would be. How do you handle ControlPort, HS, DataDir, ExitPolicy and basically any other config option, ... but since I need a solution in the near future I'll probably just go with multiple services on OpenBSD. thanks, Nusenu [1] https://lists.torproject.org/pipermail/tor-relays/2015-April/006741.html -----BEGIN PGP SIGNATURE----- iQIcBAEBCgAGBQJVHuIaAAoJEFv7XvVCELh03H0QAKpg05vfOS/DTJ6Qhl7TfQV/ pKiAHjVfbWOfBD4vfqMHX0H054l7WfRUUiSz6gZ9DRGwXj7uDXh59kjsNa2ipMvK 4YYvDXjUIh3UBZdDnjLrkRPI5Lws1PuCi6wvnFX+e/weWiWQ18N/2HALaluhyldI 3aiDWA3k0ZnZVkuLLpbkxvbol8HS0upMTkwWlba/QXdWflK3it6sydkIi8EMhMx4 cEfTRCvWjxxU5YguIQ7/NpNFpKvRCtUEoCKBLjXuUGKTvawQ+Xu+XJQeSqE/yOqO Z1lTSQqH4i7JjBGEMxXQP/U7B3gELxv2tRcpfImGQZArLim41VPTVXse2+dPhb4d 0Knl19yYxtd4gjtoMbnv3GEPNgj2xnBr8e2MEYDsRY+rGYFnHEtnPvmJmC5p/vtX NAcuReFLd+y3j2PuB0XJHlGYOLtzvtaXJdiqV6oq42Mu0VHpiGfbTfKi2k8ZMUTw PfLQjx9z3dQ6GleC1mGHdMeJ7bJ7Wk2dJ7dicLF0veY5/Gc7gkYtWibsLXggTwrQ K0IqXnGJ8fWM41ZO4hhpmkkywhXodLzlWlXCxgxDUBsuFci/mVvtfu6ylxh+LCqG y5TxIk1T4/i+atx7jvuMLgrZGf02YgFyCf15Swj+VoDxx8GAxJl9nEQx0jD5d+Zl 206/+0QAI5hksaedorvj =qUCf -----END PGP SIGNATURE-----

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Summary of meek's costs, March 2015
by David Fifield 03 Apr '15

03 Apr '15

Here's the summary of meek's CDN fees for March 2015. Earlier reports: https://lists.torproject.org/pipermail/tor-dev/2014-August/007429.html https://lists.torproject.org/pipermail/tor-dev/2014-October/007576.html https://lists.torproject.org/pipermail/tor-dev/2014-November/007716.html https://lists.torproject.org/pipermail/tor-dev/2014-December/007916.html https://lists.torproject.org/pipermail/tor-dev/2015-January/008082.html https://lists.torproject.org/pipermail/tor-dev/2015-February/008235.html https://lists.torproject.org/pipermail/tor-dev/2015-March/008427.html App Engine + Amazon + Azure = total by month February 2014 $0.09 + -- + -- = $0.09 March 2014 $0.00 + -- + -- = $0.00 April 2014 $0.73 + -- + -- = $0.73 May 2014 $0.69 + -- + -- = $0.69 June 2014 $0.65 + -- + -- = $0.65 July 2014 $0.56 + $0.00 + -- = $0.56 August 2014 $1.56 + $3.10 + -- = $4.66 September 2014 $4.02 + $4.59 + $0.00 = $8.61 October 2014 $40.85 + $130.29 + $0.00 = $171.14 November 2014 $224.67 + $362.60 + $0.00 = $587.27 December 2014 $326.81 + $417.31 + $0.00 = $744.12 January 2015 $464.37 + $669.02 + $0.00 = $1133.39 February 2015 $650.53 + $604.83 + $0.00 = $1255.36 March 2015 $690.29 + $815.68 + $0.00 = $1505.97 -- total by CDN $2405.82 + $3007.42 + $0.00 = $5413.24 grand total The number of simultaneous users was up again in March, reaching 2000 simultaneous users some days. The fluctuation between weekdays and weekends was greater than we've seen before. https://metrics.torproject.org/userstats-bridge-transport.html?graph=userst… We moved something over 9 TB in March. We're getting close to where CDNs start offering price breaks :/ == App Engine a.k.a. meek-google == At the end of February, I tried tweaking some performance parameters to try and reduce instance hours. It seems like it worked, as instance hours were down 31% as bandwidth was up 29%. Here is how the Google costs broke down: 5316 GB $637.93 2173 instance hours $108.64 Compared to the previous month: 4114 GB $492.71 3226 instance hours $157.82 https://globe.torproject.org/#/bridge/88F745840F47CE0C6A4FE61D827950B06F9E4… == Amazon a.k.a. meek-amazon == meek-amazon was up quite a bit compared to the previous month. Requests were up 6% and bandwidth was up a whopping 42%. The big increases were in the Asia Pacific (Singapore) region and EU (Ireland) region. I think we're going to go ahead with removing meek-amazon from Tor Browser. This will take a little bit of work--I'd like there to be a blog post that explains how to set up your own Amazon instance if meek-amazon is currently working for you. I also would like to try and work out any performance issues with meek-azure in order to use it as a replacement. Weirdly, there were over 24,000 plain HTTP requests from the US East region. That is strange because meek is HTTPS-only. The number of HTTP requests is still small compared to the 44,000,000 HTTPS requests received from the same region, but it's far above other regions, which have at most a few dozen HTTP requests. Asia Pacific (Singapore) 171M requests $205.57 1433 GB $195.60 Asia Pacific (Sydney) 156K requests $0.20 1 GB $0.17 Asia Pacific (Tokyo) 10M requests $12.05 70 GB $9.07 EU (Ireland) 158M requests $190.03 1486 GB $118.34 South America (Sao Paulo) 3M requests $6.70 17 GB $4.03 US East (Northern Virginia) 44M requests $44.00 378 GB $29.92 -- total 386M requests $458.55 3385 GB $357.13 https://globe.torproject.org/#/bridge/3FD131B74D9A96190B1EE5D31E91757FADA1A… == Azure a.k.a. meek-azure == https://onionoo.torproject.org/bandwidth?fingerprint=AA033EEB61601B2B7312D8… Estimated bandwidth use this month: 2015-03 737 GB Compared to last month: 2015-02 614 GB https://globe.torproject.org/#/bridge/AA033EEB61601B2B7312D89B62AAA23DC3ED8… David Fifield

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Tor hangs at startup
by spriver 01 Apr '15

01 Apr '15

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, the Tor software has a odd behaviour on my Debian machine; it hangs when I start it via "service start tor" on my Debian (Wheezy 3.2.0-4-amd64 #1 SMP Debian 3.2.65-1+deb7u2) with Tor (0.2.4.26-1): service tor start [ ok ] Starting tor daemon... And then nothing happens anymore, I have to kill the dialog with ^C. As I figured out Tor starts correctly in the background (the logfile tells me so) and also opens my ORport and Dirport (netstat told me). Is this a bug or a behaviour that is supposed to be that way? Cheers, spriver -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJVHEYUAAoJEMkUf8VoejgP1GYP+wWnfllpVIC942S6PvHW9lx0 wPp6aHYBFL46Fg/r2pO8+rz7L1E1M72V0lYiqkiuzRs7IW2DYgfBVMpTz5+EoPk4 vGf+vPnyDR5hmVEM4sJbtfawb7CsK6dps/4sU6QuxfPCQE8IEII4JxbP8krobrcL 7nQAr8PPwVnuwbZGf9eqHNN4fZUnmZv8bPTtwpPB7ie8lOMzeJVCiEMU8NXKIe3K 9Wui7vatgNvTqldrHLI0DJZRJJ86V/+Q4aSJ6hvH0C7JuB+tO7sOLlplIKLxYkb5 eXFzBUhqESslsGc07k8wVhytaYSEhsG3Y0xh18gcA2rZF3kf6zi4roK2wWECyV+/ 7WsVQhQ0zJm2CUbprYKCAMqBHGm2fKdRLo+OyXQCzfO/Gn75NX2aWZBaAjZ3Ppt5 IMTdQh9UZzEPnrogjLVRwq8JvQBKNgMVe72zstMvnGtqevJuvu8bY/2EjAoK9085 UBiJyaOM8VoCf0CeEgiXijzf3dtzL6FSA78kQFlb1KWNm20PJxWaZ4YqK1vWHP/o vHWz8w0252WaM1WF1raQFqVuMz4z5QFrjMOeGxkDoq2kDVaYDfwifQntzgspqOgG CJzefHrob3cAEDPoFlPiod8k/RxHg9e1nJnLYORCbCuh5pqGL95NCA6f6/zE7xxb eeu7eDN823KTBbwriyrU =RZWR -----END PGP SIGNATURE-----

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PT-themed stuffed animals: huggable transports
by David Fifield 01 Apr '15

01 Apr '15

In an effort to improve pluggable transports' visual identity, we should introduce a line of stuffed animals. The only rule that the the animal's name has to be made out of the transport name. The meek meerkat! [1] The obfs blobfish! [2] The FTE eft! [3] The flash proxy banded quail (Philortyx fasciatus)! [4] The ScrambleSuit bumblebee (Bombus centralis)! [5] Call now, operators are standing by. [1] https://en.wikipedia.org/wiki/Meerkat [2] https://en.wikipedia.org/wiki/Blobfish [3] https://en.wikipedia.org/wiki/Eft [4] https://en.wikipedia.org/wiki/Philortyx_fasciatus [5] https://en.wikipedia.org/wiki/Bombus_centralis

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tor-dev April 2015