Re: [Sks-devel] Oh, Jeeez...!

[Christian Felsing]

Am 25.05.2016 um 18:13 schrieb Valentin Sundermann:
> Hi,
> > Can we add a proof of work mechanism to make adding a key to the server
> > more "costly" ?.


Let client solve a simple integer factorization of a random number given 
by server with e.g. 64bit build from two prime numbers. Client has to 
find those prime numbers. Until "Can integer factorization be done in 
polynomial time?" is answered with "yes" this can be seen as a "hard 
problem" so even quite powerful cpus will need a few seconds to solve that.

Christian

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