5. With the aid of a diagram, explain how a block cipher can be used as a pseudo random number generator.

6. Describe some of the design requirements of stream ciphers.

7. The WEP protocol is based on RC4, a stream cipher. What weaknesses led WEP to be broken?

8. Describe the process of the WPA2 handshake.

9. Briefly describe how you would go about implementing a dictionary attack against WPA2 (hardware/software tools, steps, etc).