sci.crypt archive
Re: The importance of IVs
From: Paul Rubin <//phr.cx@NOSPAM.invalid>
Date: Sat Aug 27 2005 - 23:55:00 CEST
Date: Sat Aug 27 2005 - 23:55:00 CEST
"mobius30" <mobius30@hushmail.com> writes:
> checks for weak keys after key expansion/generation. I imagine it
> would involve logically checking each S-box for twins. However this
> would take up more CPU clock cycles, slowing down the app significantly.
You would only have to do it at key initialization time. Blowfish key
initialization is already deliberately very slow. Slowing it down
a little more won't matter much.
Received on Thu Sep 29 21:51:12 2005