On 14-11-2014 16:01, Philip Jackson wrote: > Does anything prevent the key breaker getting lucky and cracking it first try?
No. It's just extremely unlikely. > It seems to me that all discussions on key breaking with their very large > numbers always assume that the last try is THE ONE. Nu, usually one assumes that brute forcing requires, on average, scanning half the keyspace. > And how does the cracker know he has succeeded ? That's the tricky part. If the output of the encryption program is just encrypted text, the only way is to see if there's something recognizable in the decrypted stuff. But most software includes some kind of CRC check or a hash so that can be checked. GnuPG does this. > Does he have to pause between > each iteration to see if he has 'something good' ? Yes. -- ir. J.C.A. Wevers PGP/GPG public keys at http://www.xs4all.nl/~johanw/pgpkeys.html _______________________________________________ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
