1. (DUE September 20, 2005 by midnight EDT) Briefly discuss what you learned from the readings in chapters 8-9:
   • What was the most surprising thing you learned?
   • What was the most difficult part for you?
2. (DUE September 20, 2005 by midnight EDT) Select one of the following questions to discuss in detail through the threaded discussion.
   • A cryptographer once stated that cryptography could provide complete security, and that any other computer security controls were unnecessary. Why is he wrong? (Hint: Think of an implementation of a cryptosystem, and ask yourself what aspect(s) of the implementation can cryptography not protect.)
   • As we move into a "paperless society", authentication protocols become even more important. Discuss ways to utilize different authentication techniques when transmitting paperless documents.
   • Discuss the pros and cons of using a key escrow system like the Clipper chip.
3. (DUE September 25, 2005 by midnight EDT) Select a discussion from one or more of your classmates and respond to their comments.

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