[tor-talk] Lots of tor relays send out sequential IP IDs; please fix that!

Joe Btfsplk joebtfsplk at gmx.com
Mon Mar 31 22:31:31 UTC 2014

On 3/31/2014 4:12 PM, Jann Horn wrote:
> Well, the subject line pretty much says it all: Lots of Tor relays send out
> globally sequential IP IDs, which, as far as I know, allows a remote party to
> measure how fast the relay is sending out IP packets with high precision,
> possibly making statistical attacks possible that could e.g. pinpoint the entry
> guard a user or hidden service uses.
Why would this be?  By design for some reason?  Oversight? 
Misinterpretation of the data?

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