NIST is running a Modes of Operation workshop on Friday 20th. See http://csrc.nist.gov/encryption/aes/modes/ It seems likely that NIST will demand the same licensing conditions from anyone proposing a mode of operation for standardisation that they did for the AES cipher itself. Does anyone know for sure? I ask because one of the papers listed for discussion at the modes of operation workshop is a very cute technique for doing authentication at little extra cost over encryption, but it's patented by IBM, so it'd be good to see the world get a royalty-free license for this one. -- __ \/ o\ Employ me! Cryptology, security, Perl, Linux, TCP/IP, and smarts. /\__/ [EMAIL PROTECTED] http://www.cluefactory.org.uk/paul/cv/
