Rivest Patent

Eric Cordian emc at wire.insync.net
Fri Nov 13 15:46:31 PST 1998

Harvey Rook writes:

> It's a little bit more complicated than that. RC-6, which also uses data
> dependant rotations is patent free. 

Wasn't that a requirement for being an AES submission? 

As you may have guessed, I'm not a fan of permitting software to be
patented.  Particularly things like RSA for which obvious prior art
existed, and the plethora of microprocessor patents which cover things
like doing branch prediction and switching instruction sets in absurdly
obvious and simple ways.  Then you have the resulting silly lawsuits over
the silly patents and other innovation-suppressing and time-wasting

The corporate "Push to Patent" is remarkably similar to the academic "Push
to Publish."  90% of the output of either is not worth reading. 

Sponsor the DES Analytic Crack Project

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