Crypto and new computing strategies

In the latest issue of Scientific American there is an article on quantum computing and how the first working machine is to be built in the immediate future. This raises dark portents in my mind when one considers the rate and the size constraints on such devices. We may be looking at a technology birth which will allow brute force computation of RSA style algorithms and their cracking. As an aside in a Physics mailing list I subscribe to Rajashi Roy from Georgian Tech supposedly has managed to synchronize two chaotic lasers which would provide a basis for a optical one-time pad system.