Re: Status of DES, or "Is the DES Standard PD?"

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Article #47

#47

From: Larry Hunter
Date: Fri, 11 Dec 1992 17:51

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spc@pineal.math.fau.edu (Sean 'Captain Napalm' Conner) asks:

  (And on a related note: Is there any information as to the ORIGINAL
  specification for DES that IBM summited to the NSA that is 	available?
  Just asking ... )

To which  uri@watson.ibm.com (Uri Blumental) answers

  Sorry to disappoint you - those "original" specs aren't different from what
  you can get now from ANSI (:-).

Which is not entirely true.  There was a significant controversy over the key
size that would be used.  James Bamford's "Puzzle Palace" (a classic text, but
one that could use an update) has a fairly detailed description of the
wrangling.  I believe the original IBM proposal was for 128 bit keys, but the
final standard ended up with 56 bit keys (that's just off the top of my head;
my copy of Bamford is at home).

				Larry
--
Lawrence Hunter, PhD.
National Library of Medicine
Bldg. 38A, MS-54
Bethesda. MD 20894 USA
tel: +1 (301) 496-9300
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internet: hunter@nlm.nih.gov
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References: <1992Dec11.075845.27376@cybernet.cse.fau.edu> <1992Dec11.201151.145881@watson.ibm.com>

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Newsgroups: alt.security.pgp,alt.security,sci.crypt,talk.politics.misc,talk.politics.guns
Path: arc1-ca.pugleaf.net!sparky!uunet!wupost!darwin.sura.net!lhc!lhc!hunter
From: hunter@work.nlm.nih.gov (Larry Hunter)
Subject: Re: Status of DES, or "Is the DES Standard PD?"
In-Reply-To: uri@watson.ibm.com's message of Fri, 11 Dec 1992 20:11:51 GMT
Message-ID: <HUNTER.92Dec11175157@work.nlm.nih.gov>
Sender: news@nlm.nih.gov
Organization: National Library of Medicine
References: <1992Dec11.075845.27376@cybernet.cse.fau.edu>
 <1992Dec11.201151.145881@watson.ibm.com>
Date: 11 Dec 92 17:51:57
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