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ANN: txtorcon 0.10.0
by meejah 15 Jun '14

15 Jun '14

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'm excited to announce txtorcon 0.10.0 which adds support for Twisted's endpoint strings. This means that ANY Twisted program that uses endpoints can accept "onion:" strings to bring up a hidden services easily (by launching a new Tor instance). Typically, no code changes to the application should be needed (just "pip install txtorcon"). "twistd" supports endpoints, so for example to serve some Web content from ~/public_html as a hidden-serivce, we can do this (with txtorcon installed): twistd web --port onion:80 --path ~/public_html Some examples of other valid "onion:" endpoint strings: onion:80:hiddenServiceDir=/dev/shm/hidsrv onion:80:controlPort=9050:hiddenServiceDir=/srv/hidden The first allows specifying existing hidden service keys and the second says to connect to an already-running Tor instance. Thanks to David Stainton (dawuud) for the initial pull-request (and continued collaboration) that made this happen. There is a complete demonstration of the power of this Fully Operational endpoint-station here: https://txtorcon.readthedocs.org/en/latest/howtos.html#endpoints-enable-tor… You can download the release from PyPI or GitHub (or of course use "pip install txtorcon"): https://pypi.python.org/pypi/txtorcon/0.10.0 https://github.com/meejah/txtorcon/releases/tag/v0.10.0 sha256sum reports: 910ff3216035de0a779cfc167c0545266ff1f26687b163fc4655f298aca52d74 txtorcon-0.10.0-py2-none-any.whl c93f3d0f21d53c6b4c1521fc8d9dc2c9aff4a9f60497becea207d1738fa78279 txtorcon-0.10.0.tar.gz thanks, meejah -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJTnTM5AAoJEMJgKAMSgGmnB5EIAIJACHhd7PEWYfCZmB8lL1pr J4rrhUuXD1iI7zJJL/rmS/SZLL+34JoKke6iQsBRGYzU0GRK2JQkFAeMq++AMdMu QvoTg745OhnMSbZyCyS6buN/NhAVcmD3GYI9h8TK60jfUPEFn7+sDstMG4OePdgq X0QQHBuJq9XtDwEmRWFHq2Aht//7J2DUliPPjtwT3C4FhPT5pXxasvfQA4jOYxsO jTja6UE4/4TnonV5gB/chijp60cKvVxFQi86mKuNnVaKTZu+QCZFJtXkr/DbRSxv CJ+z7jJ9s8xhfQ5Nkv9pkVAreH6w9bemc/iijKlZmQGYvLBTsvISPATyWGtn1f4= =wIVZ -----END PGP SIGNATURE-----

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Re: [tor-dev] Tor Cloud maintenance - Question
by Sina Rabbani 13 Jun '14

13 Jun '14

Dear Team, I started building new images for Amazon EC2, as of last night. I noticed that obf2 and obf3 ports are hard-coded and the same for all Tor instances on Amazon. Is there a specific reason for this? If not, can I randomize the ports? All the best, SiNA On 2014-06-11 23:50, Karsten Loesing wrote: > Hi Sina, > > please find the following conversation below from #tor-project. Any > thoughts? > > Thanks, > Karsten > > > 06:43:15 < Lunar^> We really need a maintainer for Tor Cloud. Thre's > some of the support tickets we are getting I have > no idea how to answer… > 06:45:20 < karsten> > > https://trac.torproject.org/projects/tor/wiki/org/operations/Infrastructure > says inf0 and Runa are the maintainers. > 06:45:55 < karsten> is that not the case? should we mark it as > unmaintained and threaten to turn it off three > months later? > 06:47:01 < arma1> sina said he would pick it up > 06:47:04 < arma1> but i don't know that he ever did > 06:47:13 < karsten> sina = inf0? > 06:47:18 < arma1> perhaps karsten could mail him and ask if he is > maintaining it or if we should turn it off? > 06:47:19 < arma1> yes > 06:47:28 < karsten> sure, I can do that. > 06:47:57 < arma1> thanks! -- "be the change we wish to see in the world." Gandhi

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Re: [tor-dev] Proposal for improving social incentives for relay operators
by Virgil Griffith 11 Jun '14

11 Jun '14

> Also, theconcept of naming authorities is about to be phased out [1], so > better not build new services that rely on nicknames. Karsten I love you. Not only do you have fine ideas, you are the greatest feedback provider in the world. Agreed 100%. Replace key-by-nickname with key-by-fingerprint. Not crazy about having a a separate Torati name space, but meh, you do what you have to. Maybe make the nicknames a version 2.0 feature. (Could always make a namespace integration with google+! Har.) > Okay. See Andrew's concerns about avoiding words having "Tor" in them. I will find a name that doesn't explicitly invoke Tor. -V

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Typo in torspec.git/control-spec.txt
by Frithjof 11 Jun '14

11 Jun '14

Hi, the Tor control protocol spec says in §4.1 about asyncrhronous replies: > These replies can be sent after a corresponding SETEVENTS command has been > received. They will not be interleaved with other Reply elements, but they > can not appear between a command and its corresponding reply. > > C: SETEVENTS CIRC > S: 250 OK > C: GETCONF SOCKSPORT ORPORT > S: 650 CIRC 1000 EXTENDED moria1,moria2 > S: 250-SOCKSPORT=9050 > S: 250 ORPORT=0 If I am not reading the example wrongly, the negation in the last sentence is wrong, e.g. diff --git a/control-spec.txt b/control-spec.txt index 2dde043..70ddf3b 100644 --- a/control-spec.txt +++ b/control-spec.txt @@ -1253,7 +1253,7 @@ These replies can be sent after a corresponding SETEVENTS command has been received. They will not be interleaved with other Reply elements, but they - can not appear between a command and its corresponding reply. For example, + can appear between a command and its corresponding reply. For example, this sequence is possible: Cheers, Frithjof

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Reminder: tor development meetings this (and every) Wednesday, 19:00 UTC
by Nick Mathewson 11 Jun '14

11 Jun '14

Here's your regular reminder for the weekly IRC meeting for people working on the program "tor". (This won't cover all the other programs developed under the Tor umbrella.) The next meeting time will be: Wednesday June 11, 19:00 UTC. (That's 3pm EDT and 12:00 noon PDT.) As usual, we'll do it on the #tor-dev IRC channel. I've seen a drop-off in the number of people coming since I stopped sending these out weekly, so I'm sending them again for a while. Among other stuff, I expect we'll be wrapping up (or planning to wrap up) 0.2.5.5-alpha and maybe doing some initial strategizing on 0.2.6. cheers, -- Nick

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GSoC: BridgeDB Twitter Distributor report
by Kostas Jakeliunas 11 Jun '14

11 Jun '14

Hey all, in the past weeks I've been working on understanding what can be done using Twitter APIs and its media support in its CDN (for a later captcha implementation), as well as on improving my existing Twitter bridge distributor bot PoC. I've written some broken code, but it's alright. More details below. Distributor bot improvements included working on adding a churn rate control mechanism which securely stores Twitter user IDs (with code and design ideas from BridgeDB's HMAC approach to remembering e.g. email addresses in the EmailDistributor), and implementing a (mostly) bogus text-based challenge-response system (this is mostly so that we have a generic design for doing challenge-responses in this distributor - we'll be able to later on replace it with a decent CAPTCHA, for example. It's just nice to have a generic system and a thing for testing out the bot, etc.) I've also looked into using isis' new and shiny BridgeRequest objects to process user (well) 'bridge requests' in a non-hacky way; this should also eventually result in a bridge request syntax compatible with (a subset of) GetTor commands. But I still need to figure out the best way to use BridgeRequests, so nothing interesting to show yet. TODO * (still yet to) summarize a nice meeting i've had with sysrqb and isis. No definite conclusions were made, but there were (iirc) some nice ideas about a generic BridgeDB API that could be used by third party components, etc. (i.e. it might be worth pursuing it even if the Social Distributor is to be implemented at some later point.) * clean up my mess, test new code not to fail, and push new things onto https://github.com/wfn/twidibot/ (current (old) code there does work, if anyone's curious to run it) * figure out BridgeRequests, the new IRequestBridges (ha!) interface, and use these in the twitter bot * be able to 'serve' the bot fake bridge data so it could process it in a way that may be compatible with a future BridgeDB API (i.e., hopefully this bot will be able to run as a third-party-thing, separate from core bridgedb. This is hopefully how future distributors will/should work.) This way the bot will be more/actually 'realistic' in the way it serves current bogus bridge lines to users. (I thought I'd have this by now, but I don't. Hrm.) * continue looking into captcha systems modulo what can be used in the twitter context * look into bridgedb buckets and what I can help re: them, so the bridgedb API could happen sooner than later. (Old todo list item, did not yet touch it.) All in all, need to write more non-broken code, fewer words, and just continue with the current bot. Have a nice day/night/thing! -- Kostas. 0x0e5dce45 @ pgp.mit.edu

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[GSoC 2014] Revamp GetTor: Send HTTP links for downloading TBB
by Israel Leiva 10 Jun '14

10 Jun '14

Hi! I've been discussing with my mentors (Sukhbir and Nima) the option of sending HTTP links to download TBB via GetTor. The main reason for this would be that in some censor countries is very difficult to download a "big file" (>= 10 Mb) over SSL, so HTTP links would be needed. Obviously, the user would be warned about the lack of SSL and that he/she *must* verify the integrity of the bundle. On the other side, bundles downloaded over HTTPS should also be verified if you need maximum security, since we can't trust in the cloud services neither. (e.g. Dropbox). Since this is not an easy decision, we've decided to discuss it publicly. Any thoughts on this? What's your experience regarding this matter? All feedback is welcomed. In the meanwhile we'll keep considering HTTPS links only. Regards. -- israel

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GSoC: Multicore daemon status report
by Белоус Михаил 10 Jun '14

10 Jun '14

Hi all, As start of my project, I made patch to work queue, making thread pool more efficient and wrote some benchmarks. Future work 1.Rewrite architecture of tor circuit processing, to use thread pool 2.Write benchmarks showing, that multi core implementation efficient, or not? Most of my work can be found at https://github.com/towelenee/tor. Please feel free to provide feedback of any sort. Cheers, Mikhail

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[announce] Tails HackFest, July 5-6, Paris
by intrigeri 08 Jun '14

08 Jun '14

Hi, I'm looking forward to see quite a few of you there! Join us at the Tails HackFest, 2014! July 5-6, 2014 -- Paris, France Description and goals ===================== Join us to make online anonymity and digital privacy usable by the masses! Whether you're a writer, a software developer, a designer, a system administrator or just plain interested, come learn about the challenges faced by Tails, and how you can be part of the solution. The Tails HackFest will bring together anyone interested in making Tails more usable and more secure. This open event will be an intense mix of teaching, drawing, coding, sharing, learning and celebrating. Logistics ========= * Where: the venue for the event is IRILL, Paris, France (https://www.irill.org/about/information-for-guests) * Dates: Saturday, July 5, 2014 - Sunday, July 6, 2014 * Time: 10 AM - 10 PM * Registration: if you want to attend, please consider dropping us a note about it. This is optional, but would help organizing this event. * Contact: <tails-hackfest-2014(a)boum.org>, #tails-hackfest on irc.oftc.net * Details, scheduling and updates: https://tails.boum.org/blueprint/HackFest_2014_Paris/ Host and sponsors ================= Many thanks to Debian, IRILL, Mozilla and the Tor project for supporting this event! Cheers, -- intrigeri | GnuPG key @ https://gaffer.ptitcanardnoir.org/intrigeri/intrigeri.asc | OTR fingerprint @ https://gaffer.ptitcanardnoir.org/intrigeri/otr.asc

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Re: [tor-dev] Introducing CollecTor
by Karsten Loesing 08 Jun '14

08 Jun '14

[Replying on list with Damian's permission.] On 06/06/14 17:21, Damian Johnson wrote: >> I'm currently extending metrics-lib to fetch descriptors from CollecTor. >> Maybe Damian extends Stem to do the same (or accepts patches for that >> purpose). > > Probably obvious, but what's the advantage of this over fetching new > descriptors from authorities and mirrors? What kind of CollecTor > methods did you have in mind? If you're only interested in new descriptors, then the authorities and mirrors are the place to go. But if you care about having the full history of descriptors, then you should go to CollecTor. Imagine that your tool might break for a few hours. There's no way to get the missing data from the directory authorities or mirrors anymore. For applications like ExoneraTor, where you need to store every single consensus, this can make the difference. The same holds for Onionoo and the metrics website, though it's less critical to miss a few hours. Also, if you only care about relay descriptors, then you should be fine asking directory authorities and mirrors. But sanitized bridge descriptors, exit lists, bridge pool assignments, and Torperf measurements are only available from CollecTor. Note that there's also a disadvantage of fetching from CollecTor: it's a single point of failure. Now, we could add mirrors, but it would be even better to set up a second CollecTor instance (ideally run by another person) in parallel to the current first instance, and have the two exchange data. Future work, on my list. I guess the above should be added to the CollecTor homepage. Do you have any suggestions where you would have expected to read about this, or do you have further points to add? I'll add something next week. All the best, Karsten

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