From: jpp@markv.com
Date: Wed, 27 Apr 94 21:29:15 PDT
To: cypherpunks@toad.com
Subject: Re: DId you ever think...
In-Reply-To: <9404271310.AA14921@buoy.watson.ibm.com>
Message-ID: <9404272128.aa01523@hermix.markv.com>
MIME-Version: 1.0
Content-Type: text/plain


> From: uri@watson.ibm.com
> Date: Wed, 27 Apr 1994 09:10:16 -0500 (EDT)
> 
> Wrong again. There was no "proto-DES". From Lucifer to DES took a
> few years and significant redesign, but NSA didn't help  (however
> they sure as hell wanted to keep updated on what was going on, so
> we were telling them [or rather - the team who designed it,'cause
> I joined later on :-]).

  Are you saying that IBM developed DES entierly on their own?  This
doesn't fit my model at all.  But, I'm not afraid to be wrong.

> > Learn something new every day...
> 
> Please do! (:-)

  Gladly! Please tell (learn) me: what was the history of the
development of DES.  How were DES, IBM, NSA, NIST (then NBS), and FIPS
related?  Wasn't there some concern on IBM's part about liability --
Thus the us Governments participation, including the 'secret' changes
to DES?

> > Since about 1977 I wondered what the 'rediscovered
> > crypto techniques' were.
> 
> Will you bet your ass it was the only technique in consideration?

  Why would I do that?

j'