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From: architec@cutmcvax.cs.curtin.edu.au (Phil Dench)
Newsgroups: comp.sys.sgi
Subject: Re: SecretMail
Message-ID: <architec.668564019@cutmcvax.cs.curtin.edu.au>
Date: 10 Mar 91 00:13:39 GMT
References: <9103061407.AA17329@dolphin.omni.co> <architec.668336357@cutmcvax.cs.curtin.edu.au> <1991Mar9.014207.16178@odin.corp.sgi.com> <89988@sgi.sgi.com>
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Organization: Curtin University of Technology, Computing Science
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Has anyone an opinion on whether using a double crypt with diff keys gives
even better protection?  

eg  crypt < file | crypt > file.crypt

There are not the problems with magics/headers that compress suffers
from.  And its still pretty easy to do.  And secure enough to stop your
average crypt breaker.

Or does it just give as much encryption as a single crypt.  (ie is there a
key that will give you the original with just one crypt? )

Phil