On Sun, Aug 17, 2003 at 09:57:59AM +0200, Giuliano Bertoletti wrote: > Yes, Quartz is the perfect choice, except for the fact that the algorithm > is patented.
I'm at the Crypto 2003 conference, and a paper was just presented on an attack against HFE based cryptosystems, including Quartz. Apparently Quartz only has 2^62 security rather than 2^80 security as originally claimed. But for software registration 2^62 is probably acceptable.
Yes, I presume it's acceptable.
The patent issue however is worse than it seems.
I repeatedly asked for an offer to possibly buy and use a Quartz algorithm license (I've my own implementation, so they shouldn't even bother to disclose their code), but all my efforts came to no avail. They didn't even bother to ask a huge royalty fee to force me to resign.
Apparently they state a different thing in the Nessie submission paper...
Regards, Giuliano Bertoletti
P.S. Is or will the paper be available for download ?
