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From: guy@sun.uucp (Guy Harris)
Newsgroups: net.unix-wizards
Subject: Re: Int. Sys V crypt() algorithm
Message-ID: <2284@sun.uucp>
Date: Fri, 7-Jun-85 21:45:35 EDT
Article-I.D.: sun.2284
Posted: Fri Jun  7 21:45:35 1985
Date-Received: Tue, 11-Jun-85 02:40:17 EDT
References: <620@bbnccv.UUCP> <281@ihlpm.UUCP>
Distribution: net
Organization: Sun Microsystems, Inc.
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> > AT&T produced a new encrypt() algorithm for their "international version"
> > of System V which provides encryption only.  Does anyone know what
> > algorithm is used in this new scheme, in comparison to the almost-but-not-
> > quite DES algorithm used in earlier versions of UNIX?
> > 
> > Is the new algorithm still based on DES?

I believe it's still DES based but has been "crippled" so that the Russkies
can't get a hold of DES technology :-(.

> My System V manual says:
> "Crypt implements a one-rotor machine designed along the lines of the
> German Enigma, but with a 256-element rotor."
> 
> This says to me that the old Crypt algorithm was not based on DES.

Different other "crypt".  There's the "crypt" routine, which is DES-based
(at least in pre-stupid-export-control UNIX and in domestic System V) and
the "crypt" command which is rotor-based (and has been cracked, but it's
*still* not available in international System V).

	Guy Harris