Re: [tor-talk] What is being detected to alert upon?

2015-05-01 Thread Tom van der Woerdt
:49 PM To: tor-talk@lists.torproject.org Subject: RE: [tor-talk] What is being detected to alert upon? a connection to a Tor bridge looks kind of like regular TLS traffic. Question: I recompiled OpenSSL to remove a bunch of features that look unnecessary and might present a security risk

Re: [tor-talk] What is being detected to alert upon?

2015-05-01 Thread Allen
[mailto:allen...@gmail.com] Sent: Thursday, April 30, 2015 5:49 PM To: tor-talk@lists.torproject.org Subject: RE: [tor-talk] What is being detected to alert upon? a connection to a Tor bridge looks kind of like regular TLS traffic. Question: I recompiled OpenSSL to remove a bunch of features that look

Re: [tor-talk] What is being detected to alert upon?

2015-04-30 Thread Frederick Zierold
Unfortunately, I cannot see their signature set. They have it locked down. They claim they are not detecting it by IP address. On 4/30/2015 2:24 PM, Speak Freely wrote: The list of exit nodes is public information. The Tor Project publishes the information, and several spam blocking

Re: [tor-talk] What is being detected to alert upon?

2015-04-30 Thread Frederick Zierold
Thanks for replying. I understand it is a spy vs spy type of situation but what do they see currently? I don't believe they are seeing it by the IP addresses (or so they claim). Is it something in the handshake the is triggering the alert? On Thu, Apr 30, 2015 at 2:17 PM, Seth David Schoen

[tor-talk] What is being detected to alert upon?

2015-04-30 Thread Frederick Zierold
Hi, I am very curious how a vendor is detecting Tor Project traffic. My questions is what are they seeing to alert upon? I have asked them, but I was told that is in the special sauce. Is the connection from the users computer to the bridge encrypted? Thank you for your insight. --

Re: [tor-talk] What is being detected to alert upon?

2015-04-30 Thread Speak Freely
The list of exit nodes is public information. The Tor Project publishes the information, and several spam blocking services also publish them under varying pretenses. What the vendor sees is the IP address of the exit relay hitting their server. If you had more information to provide, we could

Re: [tor-talk] What is being detected to alert upon?

2015-04-30 Thread Seth David Schoen
Frederick Zierold writes: Hi, I am very curious how a vendor is detecting Tor Project traffic. My questions is what are they seeing to alert upon? I have asked them, but I was told that is in the special sauce. Is the connection from the users computer to the bridge encrypted?

Re: [tor-talk] What is being detected to alert upon?

2015-04-30 Thread tor
On 04/30/2015 09:15 PM, Frederick Zierold wrote: Hi, I am very curious how a vendor is detecting Tor Project traffic. My questions is what are they seeing to alert upon? I have asked them, but I was told that is in the special sauce. Is the connection from the users computer to the

Re: [tor-talk] What is being detected to alert upon?

2015-04-30 Thread Philipp Winter
On Thu, Apr 30, 2015 at 02:20:34PM -0400, Frederick Zierold wrote: Thanks for replying. I understand it is a spy vs spy type of situation but what do they see currently? I don't believe they are seeing it by the IP addresses (or so they claim). Is it something in the handshake the is

Re: [tor-talk] What is being detected to alert upon?

2015-04-30 Thread Philipp Winter
On Thu, Apr 30, 2015 at 02:57:01PM -0400, t...@t-3.net wrote: One rules file is dedicated to it (emerging-tor.rules), that file has all the Tor IP addresses hardcoded into it. That's probably not very effective because the Tor network has quite a bit of churn, which would lead to plenty of

Re: [tor-talk] What is being detected to alert upon?

2015-04-30 Thread Allen
a connection to a Tor bridge looks kind of like regular TLS traffic. Question: I recompiled OpenSSL to remove a bunch of features that look unnecessary and might present a security risk, such as SSL2, SSL3 and DTLS. (In case it matters, it is OpenSSL v1.0.2a and the specific configure options