Re: [tor-dev] SkypeMorph

2012-04-09 Thread George Kadianakis
Hooman writes: > On 12-03-28 06:57 PM, George Kadianakis wrote: >> Hooman writes: >>> We called it SkypeMorph since we are still using the morphing >>> matrix. Although, I personally believe we can find a way to minimize >>> the amount of padding while keeping the timing and sizes statistically

Re: [tor-dev] SkypeMorph

2012-04-01 Thread Hooman
On 12-03-28 06:57 PM, George Kadianakis wrote: > Hooman writes: > > D) The morphing output is basically identical to the naive shaping. Are > you sure you did it right? So as mentioned in the report, the original traffic morphing does not consider timing at all (which makes it le

Re: [tor-dev] SkypeMorph

2012-03-28 Thread George Kadianakis
Hooman writes: D) The morphing output is basically identical to the naive shaping. Are you sure you did it right? >>> So as mentioned in the report, the original traffic morphing does >>> not consider timing at all (which makes it less effective against >>> DPIs) and it aims at minimizi

Re: [tor-dev] SkypeMorph

2012-03-28 Thread Hooman
On 12-03-28 02:28 AM, Roger Dingledine wrote: On Mon, Mar 26, 2012 at 03:04:47PM -0400, Hooman wrote: Can you give us some guesses about next steps for resolving these issues (or explaining why they aren't actually as worrisome as they appear)? A) It looks like the transport has no notion of ad

Re: [tor-dev] SkypeMorph

2012-03-27 Thread Roger Dingledine
On Mon, Mar 26, 2012 at 03:04:47PM -0400, Hooman wrote: > >Can you give us some guesses about next steps for resolving these issues > >(or explaining why they aren't actually as worrisome as they appear)? > > > >A) It looks like the transport has no notion of adapting to network > >conditions, i.e.

Re: [tor-dev] SkypeMorph

2012-03-26 Thread Hooman
On 12-03-25 09:37 PM, Roger Dingledine wrote: On Sun, Mar 25, 2012 at 07:18:44PM -0400, Hooman wrote: In our recent work, SkypeMorph [2], we have tried to use Skype video communications as our target protocol for protocol obfuscation. SkypeMorph functionality is similar to Obfsproxy, but the con

Re: [tor-dev] SkypeMorph

2012-03-26 Thread Roger Dingledine
On Sun, Mar 25, 2012 at 07:18:44PM -0400, Hooman wrote: > 2- SkypeMorph and pluggable transports: Although our code can > potentially be used as a pluggable transport, there is a minor > difficulty with the pluggable transport framework that needs to be > addressed before it can host our code. As m

Re: [tor-dev] SkypeMorph

2012-03-25 Thread Roger Dingledine
On Sun, Mar 25, 2012 at 07:18:44PM -0400, Hooman wrote: > In our recent work, SkypeMorph [2], we have tried to use Skype video > communications as our target protocol for protocol obfuscation. > SkypeMorph functionality is similar to Obfsproxy, but the connection > between the bridge and the client

[tor-dev] SkypeMorph

2012-03-25 Thread Hooman
Greetings, A while ago the Tor project rolled out Obfsproxy as a Browser Bundle [1], for users behind firewalls filtering SSL or detecting other characteristics of a Tor connection, to help them access bridges. In our recent work, SkypeMorph [2], we have tried to use Skype video communicatio