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3594 discussions

information about "last_restarted"
by succer110＠tiscali.it 25 Sep '12

25 Sep '12

Hi everyone tor devel! I would like to know more information about last_restarted information. - It's possibile to forge this kind of data or is somehow certified by the tor network? Sometime, while sampling hourly some data by onionoo i've noticed some difference in the uptime by + or - a few seconds in this value. - Any idea of how this is possible?! - In which file do i find the code that handle this value? Thank you! Invita i tuoi amici e Tiscali ti premia! Il consiglio di un amico … [View More]

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Email-based rendezvous for flash proxies
by David Fifield 25 Sep '12

25 Sep '12

I have made a design and written some code for an email-based registration system for flash proxy clients. Registration is the process by which a censored client sends its IP address to request service from an external proxy. In summary, a censored client sends its address in encrypted email over SMTP over TLS to a distinguished email address. A program running on the flash proxy facilitator makes an IMAP connection over TLS, polls for messages, then decrypts them and registers the addresses … [View More]

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Fwd: New HS protocol
by Robert Ransom 19 Sep '12

19 Sep '12

Note that this scheme is not quite safe to implement with Ed25519 or other DSA-like signature schemes as described; the base point needs to be multiplied by the same number as the public-key group element. ---------- Forwarded message ---------- From: Robert Ransom <rransom.8774(a)gmail.com> Date: Wed, 19 Jan 2011 08:42:40 -0800 Subject: New HS protocol To: Kadianakis George <desnacked(a)gmail.com> Cc: [redacted], [redacted], tor-assistants(a)torproject.org I wrote up the … [View More]

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Italy - third highest number users
by SiNA Rabbani 19 Sep '12

19 Sep '12

Somehow in August, Italy got a few thousand additional Tor users and became third as far as usage of Tor: > https://metrics.torproject.org/users.html?graph=direct-users&country=it#dir… > Country Mean daily users > United States 60769 (14.30 %) > Iran 43709 (10.28 %) > Italy 37306 (8.78 %) > Germany 36672 (8.63 %) Any insight? --SiNA

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Reminder: Big/tricky/interesting features for 0.2.4 need proposals by 10 October
by Nick Mathewson 17 Sep '12

17 Sep '12

Hi, all! >From https://trac.torproject.org/projects/tor/wiki/org/roadmaps/Tor/024 : "October 10, 2012: Big feature proposal checkpoint. Any large complicated feature which requires a design proposal must have its first design proposal draft by this date." There are only 23 days till October 10. If there's something you want in 0.2.4.x, and it is the kind of thing that needs a design proposal, and there is no proposal yet, it could be time to start writing! What needs a design proposal? … [View More]

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DNS(SEC) draft update
by Ondrej Mikle 16 Sep '12

16 Sep '12

Hi Nick, I've revised the DNS draft, attaching it. In section 4 there are some options for integration with libunbound, but each of them requires some work with the stock libunbound code. Ondrej

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Re: [tor-dev] Tor Volunteer
by Damian Johnson 15 Sep '12

15 Sep '12

> Damian, > > I saw on the tor-dev mailing list you would be happy to have help with > Python related Tor work. I'm game. I'd love to help the Tor Project. Hi Scott. Glad you want to help! These are great questions so I'm looping in Ravi (another developer who's actively hacking on stem) and tor-dev in case other people are interested. > I looked through the Easy bugs for Arm but it seems that Stem is where the > effort is going now. Yup. Arm was experiencing really bad … [View More]feature creep so I swapped my focus to stem around a year back. Here's the relevant links for stem... * Development Wiki https://trac.torproject.org/projects/tor/wiki/doc/stem * Gitweb https://gitweb.torproject.org/stem.git * Bug Tracker http://tinyurl.com/stem-bugs > Should I focus on Stem? > Do you have a list of easier tasks to get my feet wet with? Sure! We're currently working to make it feature complete and prepare for its initial release. Development tasks tend to fall into a few general categories... =================== Controller Functionality =================== Stem is primarily a replacement for TorCtl, a controller library used by several of our other projects (arm, SoaT, TorBEL, etc). Ravi's been focusing on making the Controller class feature complete. This is mostly located in... https://gitweb.torproject.org/stem.git/blob/HEAD:/stem/control.py Some nice introductory tasks here would be... * Add methods for querying relay descriptors The first bits of this is very easy, while the later parts get a bit more interesting... - Add a get_relay() method that calls get_info("desc/id/[fingerprint]") then return a ServerDescriptor for it. - Write unit and integ tests for the addition. - [tricky part] Add a get_all_relays() method that provides an iterator for all of the descriptors. The tricky bit is that the BaseController provides discrete controller messages, but in this case the "GETINFO desc/all" output is so large that we want to process it while it comes in. This means changing stem's underlying message processing system. * Split low and high level controller methods The Controller class is growing to be pretty bulky, and its methods can generally be split into two categories... - Low level methods that simply mirror what the control-spec provides. - Higher level methods (like the get_relay() and get_all_relays() above) which are more user friendly and build on what the control spec provides. Ravi: Do you have any thoughts on this? Do you think this would be a good way to break up the controller, or would this just make it more confusing? Alternatively we could wait until we try using stem in arm to see if this makes sense or not... =============== Descriptor Parsing =============== This is where my focus has been for the last couple weeks. A controller needs to be able to parse Tor's descriptor content (GETINFO's desc, ns, and md responses). This has expanded to include file descriptors and other descriptor content, so stem can be used as a python replacement for MetricsLib. This is useful for projects like Onionoo's python counterpart. This is a somewhat dry part of stem to work on, so unless you like reading specs and writing a parser for them this might not be a great section to work on. That said, if detail oriented parsing and validation sounds interesting then there's lots 'o tasks here. ====== Clients ====== Stem doesn't yet have any clients, and will certainly need some before we make a release in order to work out the kinks. Our plan for this is... * Port arm's interpretor Arm's control interpretor is actually a standalone script that can, with a little work, be used independently from the rest of arm. It would be interesting to see what an stem based control interpretor would look like... * Port arm's torTools module Arm makes very heavy use of the controller, and abstracts all of its TorCtl usage behind a wrapper module... https://gitweb.torproject.org/arm.git/blob/HEAD:/src/util/torTools.py This abstraction should make arm reasonably easy to move to stem. Also, stem's getting many of that wrapper's features so arm's codebase could be greatly simplified after we move. * Port TorBEL TorBEL would be a great candidate after we work out most of stem's rough edges by moving arm. It'll likely provide some interesting use cases, though this is still a ways out. ======= Usability ======= Stem doesn't yet have a site, nor have I posted its sphinx documentation anywhere. A few things that we should do here is... * Make a pretty site Ideally I'd like to write the site itself with sphinx so we have a consistent look between the front page and the documentation. * Site with auto-updating documentation This would involve setting up a site with a cron process that fetches stem and, if changed, serves up the new documentation. * Tidy up sphinx docs Stem has a lot of documentation, but we haven't really looked much at the sphinx output with an eye for making it developer friendly. It would be nice to have people try to use stem, and improve the documentation for the confusing bits. * Examples We should ask tor-dev@ for a list of bite sized Tor tasks that people commonly want (like "print my relay's bandwidth" or "list all of the relays with the BadExit flag"). Then write example scripts that do this, and provide them on stem's site to give example usage. > If so, how hard is it to set up a dev environment? Very, very easy. Assuming that you have python, git, and tor installed simply do the following. * Get a copy of stem git clone git://git.torproject.org/stem.git * To run its unit tests cd stem ./run_tests.py --unit * To run its integ tests ./run_tests.py --integ > Does the Tor Project have a formal mentorship program? How does that work? I'm not sure what you mean by a 'formal mentorship program'. I've mentored students through GSoC and Wesleyan's open source program if that answers your question. Cheers! -Damian [View Less]

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torrouter development
by ficus＠robocracy.org 12 Sep '12

12 Sep '12

Hello tor-dev! I would like to contribute to the torouter (aka TorRouter, aka OnionBox?) project, with the intention of getting a "functional" development image for the DreamPlug hardware released in the next few weeks. The goals of the torouter project seem a bit vague (especially w/r/t a transparent torified WiFi access point), perhaps this is why development slowed down previously. I will attempt a design document and specification, but mostly focus on making the core components (… [View More]

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Format-Transforming Encryption for Censorship Circumvention
by Kevin P Dyer 11 Sep '12

11 Sep '12

Following my email to this list, dated 29/07/2012, I direct your attention to the IACR eprint document http://eprint.iacr.org/2012/494, "Format-Transforming Encryption: More than Meets the DPI". In it, we present our framework for steganographic encoding of messages using regular languages, along with initial findings for a Python/C++ based implementation. To briefly highlight some of the main things we deliver: * A record-layer, powered by format-transforming encryption, that can tunnel … [View More]

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Integration of Tor, Tor Browser, Tor IM, Tor Birdy, Vidalia, Tor Router, Tails, etc.
by adrelanos 10 Sep '12

10 Sep '12

Hello, the current integration has a lot open issues and feature requests. [2] Because there might come a proposal [1] to solve this cleanly, I created an overview of all related open issues. [2] There are just so many issues I though it makes sense to create an overview so nothing gets forgotten. Feel free to edit/correct/expand the wiki site. Add your wishes. I cc'ed all effected people, if someone has been forgotten, feel free to forward this mail. Can we have this discussion on tor-dev? … [View More]

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