A quick tor analysis that I did in my spare time.

[jason cooper]

Quoting andrew at torproject.org:

> On Fri, Jul 23, 2010 at 03:08:25PM +0100,   
> jason.cooper at heckrothindustries.co.uk wrote 1.2K bytes in 23 lines   
> about:
>> Over the last few months I have been having a play with a crude tor
>> simulator (it just simulates the circuit building part of tor).  I did
>> three different types of simulation from point of view of a number of
>> organisations trying adding their own nodes to the network in an attempt
>> to control both the entrance and exit nodes.
>
> Have you read through anonbib and seen the research that covers this
> topic?
>
> http://freehaven.net/anonbib/topic.html
>

   I have to confess that I haven't read most of the papers on there.   
Was there some specific ones that you had in mind?  If so then I will  
read them and add links to the related ones in my blog post.

   I have seen Xinwen Fu's paper  
(http://www.cs.uml.edu/~xinwenfu/paper/SPCC10_Fu.pdf) after my  
original posting to the list and added a link to it in my blog post as  
it gives a lot of details about properties seen.

   The one difference between my quick analysis and the papers that I  
have read so far, other than theirs being a much more in depth  
analysis, is that I was looking at it from the point of view of  
multiple entities trying to control entrance/exit nodes.  Most  
analysis I have seen only look at it from the point of view of one  
entity, and it was interesting the way that if multiple entities all  
tried to reach the same goal independently then they would interfere  
with each other.  I found this interesting as I imagine that it would  
be very unlikely that a single organisation would want to monitor tor  
traffic in this way, it would more likely be none or more than one  
organisation trying to do this.

-- 
Jason.


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