At 02:35 PM 10/27/98 -0800, Michael Motyka wrote:

...

Most of nature is a very high quality vacuum, actually.

Yup, I did my 100hrs of Physics, Chemistry and Math too. I like the way the 'vacuum' behaves near very hi-Z nuclei.

Fine, lets get into vacuum energy, but not waste cpunk time.

More interesting, though, is this: why would a block cipher use key bits rather than an LFSR to do input or output whitening? Is it strictly a performance issue? Is it proven that doing this doesn't leak key bits in some way?

Shift registers are cracked. Good ciphers haven't been. (Love tautologies.) Traditional block ciphers are expensive bleach, take note. Unnecessary.