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2015 May 26
8
Weak DH primes and openssh
...ory as the ECDH curve selection discussion -- the theory you're suggesting is that some safe-prime moduli could themselves have a backdoor that we don't know about. Am i understanding you correctly? I've been talking with several cryptographers for the last year about finite-field DH (FFDH) and i haven't heard any suggestion that any of them think there is likely to be such a class of backdoored moduli. > yes, it would basically exclude the chance that the primes are backdoored, > there's still the chance for the values to be composites > > for values to be used...
2015 May 26
2
Weak DH primes and openssh
On Tue 2015-05-26 12:57:05 -0400, Hubert Kario wrote: > creating composites that will pass even 100000 rounds of Miller-Rabin is > relatively simple.... > (assuming the values for M-R tests are picked randomly) Can you point me to the algorithms for doing that? This would suggest that we really do want primality proofs (and a good way to verify them). Do those algorithms hold for