[messaging] Panoramix decryption mixnet messaging spec and design documents

[dawuud]

german news article about panoramix and autocrypt/nextleap

http://fm4.orf.at/stories/2877814/


On Tue, Nov 14, 2017 at 04:10:25PM +0000, dawuud wrote:
> 
> > I wonder, in general can we have nice things? Can we finally have a
> > cryptographic messaging system that protects against intersection
> > attacks? To that end I've been putting together a reading list so that
> 
> If my understanding is correct, the answer is No. No we cannot prevent
> longterm intersection attacks by using decoy traffic in the
> katzenpost/loopix system because users will go offline and come back
> online later which changes the anonymity set size and thus leaks
> information to a global network observer.
> 
> I suspect that there are mixnet use cases which are not vulnerable or
> less vulnerable to this... such that user or application behavior does not
> form a "session" where users send multiple messages over long periods which
> can be linked by a passive observer.



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