RE: sshd for windows

["DeGennaro, Gregory" <Gregory_DeGennaro () csaa com>]

Those are useable bits by the user.  It is just like DES is 64 bits but only
56 bits can used.  So this means that Windows 128 bit is not really 128 bit
as well ... ;-)

-----Original Message-----
From: Luciano Miguel Ferreira Rocha [mailto:strange () nsk no-ip org] 
Sent: Tuesday, June 17, 2003 5:50 PM
To: DeGennaro, Gregory
Cc: Depp, Dennis M.; Derek Perry; security-basics () securityfocus com
Subject: Re: sshd for windows


On Tue, Jun 17, 2003 at 01:36:09PM -0700, DeGennaro, Gregory wrote:
> BTW - 3DES is 168 bit
3DES is only 112 bit. 

ENC(DEC(ENC(data, key1), key2), key3) gives you no more security than a
ENC(DEC(ENC(data, key1), key2), key1).

A good cryptography book should give you more information why that's that
than
I can.

Regards,
Luciano Rocha

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