Re: [tor-talk] on the topic of tor's weaknesses

2012-02-25 Thread Xinwen Fu
and exits, some attacks may still work, e.g., by correlating the traffic patterns at the two sides of a circuit. Here is a paper describing such possibility: http://www.cs.uml.edu/~xinwenfu/paper/TorCellSize_ICC11_Fu.pdf. Hope it helps a bit. Xinwen Fu On Sat, Feb 25, 2012 at 12:06 PM, Chris

Re: [tor-talk] on the topic of tor's weaknesses

2012-02-25 Thread Xinwen Fu
mance Tor relies on. TCP is very sensitive to packet ordering errors. Indeed, there are still a lot of things we don't know for sure. However, at least Tor is over there and you can test it on the real one or a private Tor. Cheers, Xinwen Fu On Sat, Feb 25, 2012 at 3:49 PM, Joe Btfs

Re: [tor-talk] on the topic of tor's weaknesses

2012-02-25 Thread Xinwen Fu
on the performance problem. Cheers, Xinwen Fu On Sat, Feb 25, 2012 at 9:31 PM, Xinwen Fu wrote: > That is a lot of thinking. Many of the problems have been discussed > before. If you look at the bibliography on mixes, there are a lot of > discussions. Here is one of my papers on mixe

Re: [tor-talk] on the topic of tor's weaknesses

2012-02-26 Thread Xinwen Fu
on is how you set the overall rate of the padded traffic? You can refer to early papers on padding by my group and Matthew Wright at UT Arlington. Cheers, Xinwen Fu > What do you think? > Chris > > On Sat, Feb 25, 2012 at 9:49 PM, Xinwen Fu wrote: > > > Here is a p

Re: [tor-talk] on the topic of tor's weaknesses

2012-02-26 Thread Xinwen Fu
Sorry, TCP over TCP is believed not a good idea in terms of performance. On Sun, Feb 26, 2012 at 1:30 PM, Xinwen Fu wrote: > Hi Chris, > > On Sun, Feb 26, 2012 at 12:09 PM, Chris Wheeler wrote: > >> Dr Fu, >> >> About the paper you sent, particularly the sect

Re: [tor-talk] on the topic of tor's weaknesses

2012-02-26 Thread Xinwen Fu
raffic rate as features correlating flows. You can refer to them. Hope it helps a bit. Xinwen Fu > I think that could work. What do you think? > > On Sun, Feb 26, 2012 at 1:31 PM, Xinwen Fu wrote: > > > Sorry, TCP over TCP is believed not a good idea in terms of performan

Re: [tor-talk] how bridges work

2012-05-08 Thread Xinwen Fu
This paper may help http://www.cs.uml.edu/~xinwenfu/paper/Bridge.pdf. Xinwen Fu On Sun, May 6, 2012 at 5:07 AM, eliaz wrote: > Of what use is a bridge working off an IP address of a provider located > in, say, the US, to a client in, say, Syria? Sorry for the elementary > questi

[tor-talk] Legal or not on monitoring traffic at a Tor exit?

2011-10-23 Thread Xinwen Fu
the behavior of the operators? Is there any legal liability? Xinwen Fu ___ tor-talk mailing list tor-talk@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-talk

Re: [tor-talk] Legal or not on monitoring traffic at a Tor exit?

2011-10-23 Thread Xinwen Fu
laws. What if somebody attacks my computer running a Tor exit via Tor? I have to call police since I cannot check the content of the attack traffic? Xinwen Fu On Sun, Oct 23, 2011 at 8:51 PM, Gregory Maxwell wrote: > On Sun, Oct 23, 2011 at 8:42 PM, Xinwen Fu wrote: > > I'm a bit cur

Re: [tor-talk] Legal or not on monitoring traffic at a Tor exit?

2011-10-23 Thread Xinwen Fu
Thanks for the information, guys. I'm teaching a digital forensics class and trying to clean up these tangling laws. Xinwen Fu On Sun, Oct 23, 2011 at 10:56 PM, Roger Dingledine wrote: > On Sun, Oct 23, 2011 at 10:18:41PM -0400, Xinwen Fu wrote: > > I'm just asking the

Re: [tor-talk] privacy of hidden services

2016-12-21 Thread Xinwen Fu
Sent from Fu's iPhone > On Dec 21, 2016, at 12:59 PM, Allen wrote: > > I have a question about the privacy of hidden services. Let's say I > create a tor hidden service and privately send the onion address to > only two other people. Would anyone outside of myself and those two > people be a