Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1 6/24/83; site allegra.UUCP
Path: utzoo!watmath!clyde!cbosgd!ihnp4!allegra!don
From: don@allegra.UUCP (D. Mitchell)
Newsgroups: net.crypt
Subject: crypt 3 uniqueness
Message-ID: <2979@allegra.UUCP>
Date: Sat, 29-Dec-84 23:15:41 EST
Article-I.D.: allegra.2979
Posted: Sat Dec 29 23:15:41 1984
Date-Received: Sun, 30-Dec-84 05:20:20 EST
Organization: AT&T Bell Laboratories, Murray Hill
Lines: 4

Mr. Spencer is wrong.  No one knows if all 2**56 possible keys produce
a unique mapping in DES, and with the "salted" E box, even that would
not be sufficient.  All one can say is that it is extremely unlikely
that two keys produce the same encryption.