As we are learning, there are a lot of uses for cryptography in information technology, and there are a lot of different algorithms, cryptographic processes, key lengths, implementation methods, and so on. Let's explore the world of cryptographic products. What's available out there? What kind of quality is found in free, open-source products? What types of hardware devices? What types of software implementations? How are they used? What problems do they solve? How effective are they? How can you tell? What are the tradeoffs between security and business process efficiency?