Re: Some thing to think about

drew@sml.co.jp
Fri, 18 Apr 1997 21:57:20 +0900


1997/04/18 08:36:20 -0400にMatt Holtz <holtz@pp.msu.edu>さんに頂いた
「Some thing to think about」への返事です。
>Has anyone ever thought about a hardware implementation of this sort
>of thing? A chip that is specifically designed to do nothing but
>crack DES? I am sure that someone has.

In the book "PGP", by Simson Garfinkel, published by O'Reilley, there
is a description of such a machine on Page 67. In 1993, at a
cryptography conference, a paper was presented which said that for
$10.50, a chip could be made which tries 50 million DES keys/second.

So for only $1,000,000.00, a machine could be made which only takes
7 hours to try every single key. For only $10 million, it will only
take 21 minutes to crack a DES-encrypted message. Finally, for $100
million, it will only take two minutes.

-- 
Drew Hamilton -- drew@sml.co.jp -- http://www.drew-hamilton.net/
「星があんなに美しいのも、目に見えない花が一つあるからなんだよ・瘢雹・瘢雹・瘢雹」