Re: [tor-dev] obfs4, meek, active probing and the timeline of pluggable transports

2018-10-27 Thread Sambuddho Chakravarty
Obfs4 can apparently solve most of the problems pertinent to identifying Tor bridge traffic by inspection of TLS headers... Meek relies on SNI field of TLS headers to communicate to bridges via a "front end ". >From an overall cursory glance it appears that obfs4 was introduced in 2014 while Meek

Re: [tor-dev] (no subject)

2018-03-15 Thread Sambuddho Chakravarty
Hi All We (myself and my student, cc'ed here) have some questions regarding Tor relay bandwidth. We created a small testbed (private Tor network) involving relays, clients and servers over virtual machines. The client uses the relays to create two hop circtuits to communicate to the server. The

Re: [tor-dev] Tor's current traffic scheduling

2012-10-02 Thread Sambuddho Chakravarty
Great! Thanks a lot ! Sambuddho On Tue, Oct 2, 2012 at 4:01 PM, Roger Dingledine wrote: > On Tue, Oct 02, 2012 at 03:28:04PM -0400, Sambuddho Chakravarty wrote: > > Hi All > > I am a bit curious to know how does the traffic scheduling work in the > > present Tor distrib

[tor-dev] Tor's current traffic scheduling

2012-10-02 Thread Sambuddho Chakravarty
Hi All I am a bit curious to know how does the traffic scheduling work in the present Tor distributions. Is it EWMA or the old round robin method ? Thanks Sambuddho ___ tor-dev mailing list tor-dev@lists.torproject.org https://lists.torproject.org/cgi-b

Re: [tor-dev] Reg : using the keep alive messages

2011-06-27 Thread Sambuddho Chakravarty
, Sambuddho Chakravarty wrote: > > Which is the relevant part of the that should I look into for injecting > such cells in streams ? > > Thanks > Sambuddho > > > On Thu, Jun 9, 2011 at 3:03 PM, Sambuddho Chakravarty > wrote: > >> Dear Roger >> Thanks for

Re: [tor-dev] Reg : using the keep alive messages

2011-06-24 Thread Sambuddho Chakravarty
Which is the relevant part of the that should I look into for injecting such cells in streams ? Thanks Sambuddho On Thu, Jun 9, 2011 at 3:03 PM, Sambuddho Chakravarty wrote: > Dear Roger > Thanks for your response. I read the spec document about the RELAY_DROP > cells. You say th

Re: [tor-dev] Reg : using the keep alive messages

2011-06-09 Thread Sambuddho Chakravarty
ttack (and its 2009 variant) . Thanks Sambuddho On Thu, Jun 9, 2011 at 12:29 PM, Roger Dingledine wrote: > On Wed, Jun 08, 2011 at 08:11:58PM -0400, Sambuddho Chakravarty wrote: > > Hi All > > I read in the Tor design spec that Tor control protocol supports > keepalive > >

[tor-dev] Reg : using the keep alive messages

2011-06-08 Thread Sambuddho Chakravarty
Hi All I read in the Tor design spec that Tor control protocol supports keepalive messages which could be used for link padding . I wonder if anyone has ever explored using them... Thanks Sambuddho ___ tor-dev mailing list tor-dev@lists.torproject.org ht