Matt Blaze Matt Blaze has been involved in all sorts of stuff, from evaluating Carnivore and Key Escrow for the government to writing the crypto file system to writing dozens of papers on crypto. He was the co-designer of swIPe, a predecessor of the now standard IPSEC protocol for protecting Internet traffic. In 1994, he discovered a serious flaw in the U.S. government's "Clipper" encryption system, which had been proposed as a mechanism for the public to encrypt their data in a way that would still allow law enforcement to have access to it.