Problem
1. Pretty Good Privacy can be used as a form of public key infrastructure. Explain how PGP and PKI relate.
2. What is the clipper chip? Did it ever come to fruition? Explain.
3. Occasionally you hear of a virus that is not a virus but instead is a hoax. Find a Web site that lists hoax viruses and report on some of the more interesting ones.
4. What are some of the other spread spectrum technologies besides frequency hopping and direct sequence? Be sure to list your sources.