Re: The Cost of Snakeoil (was Re: John Gilmore and the Great Internet Snake Drive)

Mok-Kong Shen (mok-kong.shen@stud.uni-muenchen.de)
Wed, 22 Jul 1998 09:49:35 +0100

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Kriston J. Rehberg wrote:
>
> Remember, 3DES not necessarily DES taken three times; I believe the most
> secure (and most popular) form takes the output of DES decrypted with
> another key on the second pass and then encrypted again with DES with a
> third key on the third pass. It's fascinating and super-clever (and
> some say "unbreakable") but it's, of course, very slow.

I wonder whether the speed is a real bottleneck in view of better
technology than the time DES was first used. When there are more
than one message to be sent one could use more hardware. Finally
I believe that extremely important messages (like those described
in Kahn's book) are mostly fairly short even at the current age.

M. K. Shen

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