[tor-bugs] #6149 [Censorship analysis]: "Censorship-timeline" for Tor

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#6149: "Censorship-timeline" for Tor
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 Reporter:  phw                              |          Owner:  runa
     Type:  project                          |         Status:  new 
 Priority:  normal                           |      Milestone:      
Component:  Censorship analysis              |        Version:      
 Keywords:  dpi, archive, censorship, block  |         Parent:      
   Points:                                   |   Actualpoints:      
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Comment(by phw):

 Replying to [comment:8 arma]:
 > Replying to [comment:6 hellais]:
 > > Just put the ASN in place of the source ip. I don't think that makes
 the data at all less useful.
 >
 > Be very careful when thinking you've anonymized data. For example, if
 you take out the IP address, but you leave in a checksum of the previous
 thing that included the IP address, it is not hard to recompute the IP
 address.

 Depending on how sensitive the data is, even port numbers can be a problem
 since we have to assume that data might be captured and stored by the
 censor for later analysis. Anonymizing traffic traces is a hard problem
 and in most cases it might be better to just provide the tools to quickly
 reproduce traffic traces.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/6149#comment:10>
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