Re: [tor-dev] fteproxy depends on obfsproxy...

2015-09-07 Thread Kevin P Dyer
Response inline. On Mon, Sep 7, 2015 at 3:29 PM, Yawning Angel <yawn...@schwanenlied.me> wrote: > On Mon, 7 Sep 2015 14:37:07 -0700 > Kevin P Dyer <kpd...@gmail.com> wrote: > > > ...and it shouldn't. > > > > Fortunately, the dependency is isolate

[tor-dev] fteproxy depends on obfsproxy...

2015-09-07 Thread Kevin P Dyer
...and it shouldn't. Fortunately, the dependency is isolated to a single file. See [1]. My understanding is that pyptlib [2] is no longer maintained. wiley/asn/etc. - What's the proper way to remove this dependency, but make it easy for fteproxy to be a PT? -Kevin [1]

Re: [tor-dev] Seeing through Network-Protocol Obfuscation

2015-08-22 Thread Kevin P Dyer
On Sat, Aug 22, 2015 at 12:43 AM, Yawning Angel yawn...@schwanenlied.me wrote: On Fri, 21 Aug 2015 17:51:20 -0700 Kevin P Dyer kpd...@gmail.com wrote: On Wed, Aug 19, 2015 at 11:58 AM, Yawning Angel yawn...@schwanenlied.me wrote: [snip] The FTE semantic attack they presented

Re: [tor-dev] Seeing through Network-Protocol Obfuscation

2015-08-21 Thread Kevin P Dyer
Hey Philipp! Thanks for the interest! I'm one of the authors on the paper. My response is inline. On Wednesday, August 19, 2015, Philipp Winter p...@nymity.ch wrote: https://kpdyer.com/publications/ccs2015-measurement.pdf They claim that they are able to detect obfs3, obfs4, FTE, and

Re: [tor-dev] Seeing through Network-Protocol Obfuscation

2015-08-21 Thread Kevin P Dyer
On Wed, Aug 19, 2015 at 11:58 AM, Yawning Angel yawn...@schwanenlied.me wrote: [snip] The FTE semantic attack they presented isn't the easiest one I know of (the GET request as defined by the regex is pathologically malformed). Very interesting! This is news to me. I'm assuming I did

Re: [tor-dev] Bridge users by transport is broken

2015-01-12 Thread Kevin P Dyer
...@torproject.org wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 29/12/14 19:57, Karsten Loesing wrote: On 29/12/14 19:02, Kevin P Dyer wrote: The Bridge users by transport [1] graph on metrics.torproject.org abruptly stops at Dec. 12 for all transports. Has anyone had an opportunity

[tor-dev] Bridge users by transport is broken

2014-12-29 Thread Kevin P Dyer
The Bridge users by transport [1] graph on metrics.torproject.org abruptly stops at Dec. 12 for all transports. Has anyone had an opportunity to troubleshoot this issue? -Kevin [1]

Re: [tor-dev] Temporary decrease in FTE users in late August?

2014-09-17 Thread Kevin P Dyer
Hi David, I don't believe it has anything to do with bridges being blocked. Here's what I know: There was a few days downtime at the end of August for the first-listed FTE bridge in the Tor Browser. However, not all FTE bridges listed in the Tor Browser were down at that time. It should have

Re: [tor-dev] wfpadtools: comments about primitives

2014-05-30 Thread Kevin P Dyer
Hi Marc, Thanks for doing this work, I'm excited to see what you learn this summer. However, I'm a bit confused by statements like: The idea is to implement a set of primitives that any link padding-based defense would benefit [from]. Can you provide a high-level diagram that explains where

[tor-dev] fteproxy 0.2.14 released (resolves ticket #11629)

2014-05-10 Thread Kevin P Dyer
Hi George, I've released version 0.2.14 of fteproxy [1], with corresponding changes [2] to the Tor Browser. This release addresses ticket #11629 [3], thanks to Yawning's patch [6]. My changes [2] to the tor-browser-bundle include the following: - Updated fteproxy to 0.2.14 - Updated obfsproxy

[tor-dev] Version bump of obfsproxy to 0.2.8 in TB breaks FTE

2014-04-28 Thread Kevin P Dyer
Hi Mike, It looks like [1] broke FTE [2]. Can you hold off on pushing any releases public, until we resolve #11629? George - Can we revert obfsproxy back to 0.2.4, to give me time to sort this out? -Kevin [1]

Re: [tor-dev] Version bump of obfsproxy to 0.2.8 in TB breaks FTE

2014-04-28 Thread Kevin P Dyer
On Mon, Apr 28, 2014 at 11:06 AM, George Kadianakis desnac...@riseup.netwrote: Kevin P Dyer kpd...@gmail.com writes: Hi Mike, It looks like [1] broke FTE [2]. Can you hold off on pushing any releases public, until we resolve #11629? George - Can we revert obfsproxy back to 0.2.4

Re: [tor-dev] Projects to combat/defeat data correlation

2014-01-16 Thread Kevin P Dyer
On Wed, Jan 15, 2014 at 7:16 PM, Jim Rucker mrjim...@gmail.com wrote: [snip] From my understanding (please correct me if I'm wrong) Tor has a weakness in that if someone can monitor data going into the relays and going out of the exit nodes then they can defeat the anonymity of tor by

Re: [tor-dev] Small FTE question

2014-01-03 Thread Kevin P Dyer
On Fri, Jan 3, 2014 at 6:20 AM, George Kadianakis desnac...@riseup.net wrote: Hello Kevin, I saw your recent changes to the FTE codebase. The code looks nice! I then tried to test it, but I got a bit confused by the CLI. I wanted to try the good ol' ncat test, where I put FTE in the middle,

[tor-dev] fteproxy v0.2.2

2013-12-16 Thread Kevin P Dyer
I've response to the good feedback [1] from asn, nickm, and yawning, I've tagged v0.2.2 [2] of fteproxy. This release includes the removal of gmpy as a dependency, additional documentation to explain the significance of language theoretical algorithms, and bounds checking of the input/output of

[tor-dev] Gitian Build Failure (pt branch only?)

2013-12-12 Thread Kevin P Dyer
Hi Mike/dcf1, Building the pt branch [1] of tor-browser-bundle on Ubuntu 13.04, 64-bit resulted in the following error: ./bin/gbuild:21:in `system!': failed to run on-target setarch i386 bash -x var/build-script var/build.log 21 (RuntimeError) from ./bin/gbuild:121:in

[tor-dev] fteproxy v0.2.1

2013-12-10 Thread Kevin P Dyer
Hi dcf1/asn, Yesterday I tagged release v0.2.1 of fteproxy. In this release I focused on breaking away from heavyweight dependencies: OpenFST and boost. Cross-platform PTTBB binaries are available on the fteproxy website: https://fteproxy.org/download. asn - Please have a look at the code and

Re: [tor-dev] Development of an HTTP PT

2013-11-25 Thread Kevin P Dyer
Hi dardok, Thanks for thinking about HTTP pluggable transports. It turns out to be a deceptively hard problem! Do you have any initial high-level goals? Or are you just trying to figure out *some* way to bootstrap an existing HTTP client/server architecture to tunnel arbitrary data streams?

[tor-dev] FTE v0.2 Release Candidate

2013-11-25 Thread Kevin P Dyer
I'm pleased to announce the release candidate of a pluggable transport powered by Format-Transforming Encryption. Cross-platform PTTBBs are available on the FTE website: https://fteproxy.org/download dcf - I've added a patch to ticket #9941. This patch can be applied to [2], to integrate FTE

Re: [tor-dev] Transport composition

2013-11-19 Thread Kevin P Dyer
Hi George, Maybe I'm missing something from the discussions that happened eight months ago at the dev meeting. (as per the initial comment in [1]) However, I guess I'm a bit confused about the motivation. Just to be clear, the goal is to be able to combine multiple transports easily, right? For

Re: [tor-dev] Pluggable Transport TBB Build

2013-10-09 Thread Kevin P Dyer
Hi David! Thanks for the detailed response. My thoughts are inline. On Sun, Oct 6, 2013 at 3:30 PM, David Fifield da...@bamsoftware.com wrote: On Sat, Oct 05, 2013 at 11:08:40AM -0400, Kevin P Dyer wrote: Sorry I missed the most recent Pluggable Transport bi-weekly meeting. In regards

Re: [tor-dev] Pluggable Transport TBB Build

2013-10-09 Thread Kevin P Dyer
On Wed, Oct 9, 2013 at 12:22 PM, David Fifield da...@bamsoftware.com wrote: On Wed, Oct 09, 2013 at 12:02:20PM -0400, Kevin P Dyer wrote: On Sun, Oct 6, 2013 at 3:30 PM, David Fifield da...@bamsoftware.com wrote: This is a good start and goes a long way towards automating the build process

[tor-dev] Pluggable Transport TBB Build

2013-10-05 Thread Kevin P Dyer
Hi David, Sorry I missed the most recent Pluggable Transport bi-weekly meeting. In regards to the PTTBB build, I plan to make progress towards a streamlined build process. Platforms I want to get the PTTBB build working on: 1) CentOS 5.9 (32-bit) 2) CentOS 5.9 (64-bit) 3) Windows 7 4) OSX 10.8

Re: [tor-dev] Format-Transforming Encryption Pluggable Transport

2013-07-27 Thread Kevin P Dyer
-bit/64-bit linux binaries were compiled on RHEL6.4 with GLIBC 2.12. Please let me know if this resolves the issue you encountered. -Kevin On Wed, Jul 24, 2013 at 10:51 PM, Kevin P Dyer kpd...@gmail.com wrote: Hi George, Thanks for trying FTE! Apologies, this is my fault. I built the current

[tor-dev] Format-Transforming Encryption Pluggable Transport

2013-06-09 Thread Kevin P Dyer
the Great Firewall of China, using FTE to make our traffic look like HTTP. We're eager for feedback on this alpha release, so please do not hesitate to contact us with questions. -Kevin P Dyer (and his co-authors) [1] https://lists.torproject.org/pipermail/tor-dev/2012-September/003993.html [2

Re: [tor-dev] Format-Transforming Encryption for Censorship Circumvention

2012-09-11 Thread Kevin P Dyer
On Thu, Sep 6, 2012 at 3:30 PM, David Fifield da...@bamsoftware.com wrote: On Thu, Sep 06, 2012 at 09:25:58AM -0700, Kevin P Dyer wrote: 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