>Patrick Wilken wrote: [crypto is secure] presumably only until we develop
reasonable >quantum computing. How long is that going to take? <20years? Are their any encryption >schemes that will hold up to a QCs assault?
Actually, yes. The crypto guys can make their codes arbitrarily secure simply by making the keys arbitrarily long. With QC, the length of the keys would make them a pain in the ass, of course. Even if we continue Moore's Law-ing for the foreseeable future, given longer keys, computers will not be able to overpower the algorithm found in PGP. spike