From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <91050fd4ead87f311095e5301b5d349d@plan9.bell-labs.com> From: presotto@plan9.bell-labs.com To: 9fans@cse.psu.edu Subject: Re: [9fans] passtokey question MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Date: Thu, 12 Dec 2002 09:06:33 -0500 Topicbox-Message-UUID: 330b4a9e-eacb-11e9-9e20-41e7f4b1d025 We needed a mixing (i.e. hash) algorithm to go from > 56 bits to 56 bits. At the time DES was the best mixing algorithm we had. It was, and still is, used in a number of pseudo random number generators so there was some precedent. If I had to do it from scratch today, I'ld probably run sha1 or mda5.