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.