April 2014 - tor-dev - lists.torproject.org

Re: [tor-dev] Stegotorus Challenge - Inheriting from FileStegMod
by vmon＠riseup.net 04 Apr '14

04 Apr '14

Hey Noah, For committing: I think Zack needs to give you write access. Please send your github id to Zack (zackw(a)cmu.edu) and cc me. Once that is done, please branch out of tor-improve and commit. If it takes Zack long to give you permission, you can just fork Zackw/stegotorus of course. Just please only commit compilable code (no syntax error etc), this way it is easier to review the commits. SWF would be easier than JS but if you like the JS it is cool with me. For the swf, basically swf_wrap should go to encode, swf_unwrap to decode and you need basically discard the http_server_SWF_transmit and http_handle_client_SWF_receive functions (these are redundant). Just be careful that what is supposed to be send to each function, is it the payload without header? with header? etc. So just tweak the swf_unwrap/swf_wrap to be compatible with what encode/decode. Capacity functions: Then PayloadServer::capacitySWF should be implemented as swfSteg::capacity. However, You'll find 4 capacity functions and it is probably quite confusing. capacity headless_capacity static_capacity static_headless_capacity static vs virtual: When all the modules are moved to the new model, we'll get rid of static_capacity, static_headless_capacity but till then, we need them to keep this old/new hybrid stegs model. Hence: capacity just calls static_capacity headless_capacity just calls static_headless_capacity headless vs headfull: headless_capcity: computes the capacity when the payload is given without http header (pure file). capacity: compute the capacity when the payload is given as an HTTP response (So it starts with HTTP/1.1 200 OK Server: Apache Accept-Ranges: bytes Content-Type: text/html; charset=utf-8 Content-Length: 920 Connection: keep-alive and then the file starts, so you just need basically to skip the header and call headless_capacity (we probably should implement the capacity in the parent and only make headless_capacity pure virtual). If you take look at: jpgSteg::capacity jpgSteg::headless_capacity jpgSteg::static_capacity jpgSteg::static_headless_capacity all I what say will sound less gibberish to you. Good luck et bon courage, vmon Noah Rahman <selimthegrim(a)gmail.com> writes: > Laying over in Tokyo enroute to bkk, had a look at all the modules and > will start on the JS one on the plane. I have 24 hours in bkk so > should be able to convert the Js and at least one of the other ones if > not both to inherit from the FileStegMod by the time I leave there. > Should I submit the pr to your Tor-improve branch or zackw's? >

1 0

Re: [tor-dev] Moving ownership to TheTorProject
by Zack Weinberg 04 Apr '14

04 Apr '14

On 02/20/2014 10:48 AM, vmonmoonshine(a)gmail.com wrote: > Hey Zack, > > I want to put up Stegotorus up for GSoC this summer. I was wondering if > you mind transfering the ownership of your Stegotorus repo: > > https://github.com/zackw/stegotorus > > To "TheTorProject" on github: > > https://github.com/TheTorProject > > ? (https://github.com/zackw/stegotorus/settings then Transfer) > > If you don't feel comfortable, we can fork it as well. [ Background for tor-dev: I am no longer involved in Stegotorus development. vmon and at least one other person are continuing to work on it; this is currently happening in non-default branches of the copy on my github account. There is also a copy of the repo on gitweb.torproject.org but it has not been updated in quite some time. ] I discussed this with Roger on IRC yesterday and we came to the conclusion that instead of transferring my Stegotorus repo to the "TheTorProject" organizational account, gitweb.torproject.org/stegotorus.git should be promoted to the master copy. I think right now I am the only person with write access to that copy, and I am not sure what the right procedure is for granting you access. I'm also not good enough at Git to know how to copy all branches of remote A into remote B (short of tedious manual actions and/or shell loops). I think this would also entail using Tor's Trac for issues instead of Github's issue tracker. zw

5 5

Prototype of a next-generation Tor control interface
by ra 04 Apr '14

04 Apr '14

Hi, all! Originally, I wrote the proposal for this year's GSoC, but nobody seems willing to mentor it and the idea most probably needs more time to shape. Hence, I post it on this list to get some feedback and let the idea evolve. (: Best, Robert Problem statement Tor's control protocol[0] facilitated the communication from other programs with a locally running Tor process, regardless of their programming language. It is used by various projects like GUI controllers, such as Vidalia or arm, research projects, or services for monitoring the Tor network, such as bandwidth scanners. The Tor control protocol is a message-based protocol which requires lots of message/string parsing when using it. Hence, to ease the use of that interface, libraries such as JTorCtl, TorCtl, Txtorcon, and Stem were developed. Today, some of those libraries can be considered outdated, such as JTorCtl and TorCtl - even though TorCtl is still in use. Stem and Txtorcon are state-of-the-art and heavily being used, provide thread safety, caching and a better interface, rendering string parsing unnecessary. However, both are Python libraries, restricting the use of the Tor control protocol to Python scripts only. While Python is a fine and very popular scripting language, actual restriction to use a specific programming language, prevents wider use of the Tor control interface. Proposal Therefore, I would like to propose a prototype of a next-generation Tor control interface, aiming to combine the strengths of both the present control protocol and the state-of-the-art libraries. It should provide (network) connectivity from other programs to a locally running Tor process, regardless of the programming language, while preserving thread safety, caching and a better interface. Before implementing in Tor itself, coding a prototype is substantially less work. The prototype should consist of a daemon running on the same machine as the Tor instance. The daemon implements a backend interface to the Tor instance through the Tor control protocol (via Stem) and a frontend interface providing JSON encoded data over HTTP (REST). Therefore, semi-structured data (JSON) can be accessed by any (HTTP-capable) programming/scripting language. HTTP compression and/or encryption can be implemented, too. Not having looked into Python REST frameworks yet in detail, Flask looks promising for this task. Until the new interface is implemented in Tor itself, it will require continual upkeep and maintenance. Therefore, as a long term goal, the new interface should be implemented in Tor itself, if the prototype proofs to be successful. [0] https://gitweb.torproject.org/torspec.git?a=blob_plain;hb=HEAD;f=control- spec.txt

1 1

Feedback on recent Globe improvements
by Karsten Loesing 03 Apr '14

03 Apr '14

Hi Christian, moving our private discussion to the public mailing list. You were asking about making graphs from Onionoo's new clients documents. Here's an example: "1_week":{"first":"2014-03-23 12:00:00","last":"2014-03-30 12:00:00","interval":86400,"factor":0.002802803,"count":8,"values":[251,933,471,955,999,999,735,713],"countries":{"cn":0.1882,"dz":0.0728,"es":0.0146,"fr":0.1006,"gb":0.0174,"hk":0.0233,"ir":0.1119,"jp":0.1882,"kz":0.0117,"my":0.1532,"us":0.1123},"versions":{"v4":1.0000}}, For this bridge, you'd draw the first data point at x = 2014-03-23 12:00:00 UTC with y = 251 * 0.002802803 = 0,703503553 concurrent users. You were also asking about feedback on new uptime graphs: http://rndm.de/globe/canary/index-11349.html Looks pretty good! The uptime graphs for the relays I checked were not as exciting as the bandwidth graphs, but it's actually good if uptime is always at 100%. And finally, you asked about showing numeric averages next to graphs, like on: https://status.github.com/graphs/past_week I like the idea. I think we shouldn't split up graphs to have only 1 line per graph, because that makes it hard to compare incoming and outgoing traffic or the various weights to each other. But it could help to have numeric averages in the same color as graph lines next to the graphs. Thanks! All the best, Karsten

4 15

Re: [tor-dev] Java-version Tor router?
by str4d 03 Apr '14

03 Apr '14

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 On 04/03/2014 02:17 PM, Lei Yang wrote: > I'm wondering are there any Tor routers which are implemented in > Java? Orchid[0] is the Java implementation of Tor. In general it is working well; we have packaged it as an I2P plugin[1] to provide easy outproxy support inside I2P. Unfortunately, the developer appears to not have time to maintain it, as there are several outstanding pull requests with bug fixes, including a fix for a deadlock we discovered during use. We maintain our own repository with fixes[]; Bitcoinj may also be forking the Orchid codebase as part of their plan to bundle it by default[3]. str4d [0]: https://github.com/subgraph/Orchid [1]: http://plugins.i2p.me/plugins/orchid/ (via I2P inproxy) [2]: https://github.com/str4d/Orchid [3]: https://github.com/bitcoinj/bitcoinj/pull/28 -----BEGIN PGP SIGNATURE----- iQEcBAEBCgAGBQJTPMjhAAoJENXeOJaUpGWywNkH/2bBNMb01uNxNHTnOXdThMnQ pnSflUEDTkvtfXWveY4soIVaFVo4XZaJXz6ibvABn5OFLizzwJEjW7CKw0gc3Lg1 4t3R9JhqEQSJyQpFuh3sJEQO+oBl92NBGRHIjiPWkeitJjxcw8mJtSkLYXbtNMyJ 1VgQjSP5AlQ+1KILpuORtuYl2kV5+yUrFqFxvJN6oWt4d5FwuDjdpphzebTERuw5 hJ2Jz4iHh1jvZx1UPKH7gkt+1Mcl+wTFz9fJvfXM8Lc6VUO5P/Sd/m9NXUN5n6N/ bdRp32Y9AzLdxaPXPmjr5A2OQIQGfCoYhOSJwAXSMrPvr6/CZxs4JoWF9pvqnZ8= =zvoZ -----END PGP SIGNATURE-----

1 0

Java-version Tor router?
by Lei Yang 03 Apr '14

03 Apr '14

Hi, I'm wondering are there any Tor routers which are implemented in Java? Thanks, Lei

1 0