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From: karn@qualcom.qualcomm.com (Phil Karn)
Subject: Re: DES Preserving Filesizes
Message-ID: <1992Jan24.031302.23172@qualcomm.com>
Keywords:  DES CFB RSA
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Organization: Qualcomm, Inc
References:  <1992Jan23.063858.23100@colorado.edu>
Date: Fri, 24 Jan 1992 03:13:02 GMT
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In article <1992Jan23.063858.23100@colorado.edu>, barrett@mumble.colorado.edu (Dave Barrett) writes:
|> Is CFB mode less secure than CBC?  If so, in what way?

I don't think there's any less security, it's just that CFB is less
efficient in its use of DES cycles, which is a real issue in software
implementations.

Phil
