Lauren Weinstein, founder of People for Internet Responsibility, has come out with a new spam solution at http://www.pfir.org/tripoli-overview.
Phil Hallam-Baker made of Verisign made a similar proposal. (I missed responding to an earlier post on this thread that said "here comes Verisign" or such-like.) Unfortunately, I can't find his post any more; I think it was on one of the XML security WG lists, but the message has already been purged from my mailbox. On thing interesting about the VRSN proposal was they they had a hardware implementation of the "velocity checker" as an option. And a patent applied for that. /r$ --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to majordomo@metzdowd.com