🚀 go-pugleaf

In article <C1JFMC.L3C@vcd.hp.com> johne@PROBLEM_WITH_INEWS_GATEWAY_FILE (John Eaton) writes:
:Assume such a chip could be clocked at 10 mhz. It would take 16 * 100 ns
:to perform a single decryption. But since you have all 16 stages you
:could pipeline the process so that you preformed one decryption every
:100 ns. With 32 of these going at once you would average one DES operation
:every 3.125 ns. One chip could cover the entire keyspace in 7.14 years.
:A parallel machine of 1024 chips could do it in 2.5 days. We are probably
:talking in the 50-100K$ range.

What about the chip on the output end that decides if the output is a
valid decryption or just junk?  At that rate you can't feed it into a
general purpose computer can you?

Hmmm... makes me think that double-encryption (with another alg - I'd
guess double encryption with DES would be decodable in a single DES, or
no?) might be worthwhile if it forces the algorithm out of hardware
and back on to a CPU...

G