IST 317 Fall, 2015 Homework #11 Begin reading Chapter 9: Encrypting volumns. Answer the following questions: 1. What is the difference between file encryption and volume encryption. 2. What is the fundamental difference between block and stream ciphers? 3. Describe the steps performed by a typical block cipher. 4. Suppose you encrypt some data with a block cipher and suppose the ciphertext suffers a 1-bit error. How does this effect the plaintext after the ciphertext is decrypted? 5. Summarize the six qualities of good encryption algorithms. 6. Describe how a self-encrypting drive controller works. 7. Look up the “Feistel structure” and describe how it relates to block ciphers.