Re: [PATCH/KERNELI] Util-linux 3des update

From: Marc Mutz (Marc@Mutz.com)
Date: Fri Sep 22 2000 - 14:51:32 EST

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Gisle S{lensminde wrote:
>
<snip>
> Predictable data in
> the last DES subkey would probably open up for certain attacks.
>
<snip>

meet-in-the-middle with complexity at most 2*2**54 if the last key is
known. The right way to do this would be to create a random key and use
that for encryption. However, how do you protect the random key?

Marc

-- Marc Mutz <Marc@Mutz.com> http://marc.mutz.com/Encryption-HOWTO/ University of Bielefeld, Dep. of Mathematics / Dep. of Physics

PGP-keyID's: 0xd46ce9ab (RSA), 0x7ae55b9e (DSS/DH)

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