In an evolving cyber security landscape, defenses must continually evolve. Static systems are not only inherently insecure, they are less so with each passing day. This principle applies to cryptography as much as to other types of cyber-defenses. And with the advent of quantum computing, most analysts agree that common cryptographic algorithms will eventually become ineffective. The scale of the potential threat is immense — for nearly all the hardware and software we use in both traditional IT environments and burgeoning Internet of Things (IoT) ecosystems.