If that's the case, then why wasn't the RSA patent revoked due to prior art?
Re:The Patent Protection Racket
by jacques_chester on Tuesday April 02, 2013 @10:03PM
(#5483728)
Prior art has to be published.
For some strange reason, Her Majesty's cryptographers at GCHQ were loathe to give up all their classified goodies during the cold war. :)
He got a nice medal though.