double encryption

[Ryan Malayter]

The only thing I could find was this presentation

http://people.cs.uchicago.edu/~kutin/CSPP532/7-3-01/16

-----Original Message-----
From: Adrian 'Dagurashibanipal' von Bidder [mailto:avbidder@fortytwo.ch]

Sent: Tuesday, June 11, 2002 1:37 AM
To: Volker Gaibler
Cc: gnupg-users@gnupg.org
Subject: Re: double encryption


On Tue, 2002-06-11 at 03:59, Volker Gaibler wrote:

> A DoubleDES cipher (encrypting two times with SingleDES and two
> different keys) has an effective key size of only 1 bit more than
> SingleDES. This is not really stronger than the single

Huh!?

I'm surprised. But then, I'm not an expert. Can you tell me why, or
point me to a reference?

cheers
-- vbi

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