And so much of our communications will be remote, over the Internet. You may be wearing things on your person which allow you to communicate. You may have your electronic wallets and so on, too. So cryptography will just be wherever you've got digital communications going on. In terms of making it all work nicely, one of the issues that still needs to be resolved is the establishment of good certification services and public key infrastructure.
Cryptography is very vigorous.
There are new proposals for public key techniques as well as new proposals for basic block ciphers and hash algorithms and so on. To some extent, the most exciting work is at the higher levels, dealing with protocols and applications and trying to put together larger systems. We're getting to that stage now. We'll have to see. I think it's a good step for my guess.