CHAPTER 4
1. Briefly define a nonsingular transformation.
2. What is the difference between a block cipher and a stream cipher?
3. Why is it not practical to use an arbitrary reversible substitution cipher of the kind shown in Table 4.1?
4. Briefly define the terms substitution and permutation.
5. What is the difference between diffusion and confusion?
6. Which parameters and design choices determine the actual algorithm of a Feistel cipher?
7. What are the critical aspects of Feistel cipher design?
CHAPTER 5
1. Briefly define a group.
2. Briefly define a ring.
3. Briefly define a field.
4. List three classes of polynomial arithmetic.
CHAPTER 6
1. What was the original set of criteria used by NIST to evaluate candidate AES ciphers?
2. What was the final set of criteria used by NIST to evaluate candidate AES ciphers?
3. What is the difference between Rijndael and AES?
4. What is the purpose of the State array?
5. How is the S-box constructed?
6. Briefly describe SubBytes.
7. Briefly describe ShiftRows.
8. How many bytes in State are affected by ShiftRows?
9. Briefly describe MixColumns.
10. Briefly describe AddRoundKey.
11. Briefly describe the key expansion algorithm.
12. What is the difference between SubBytes and SubWord?
13. What is the difference between ShiftRows and RotWord?
14. What is the difference between the AES decryption algorithm and the equivalent inverse cipher?
total pages 5
Essay Writing Service Features
Our Experience
No matter how complex your assignment is, we can find the right professional for your specific task. Achiever Papers is an essay writing company that hires only the smartest minds to help you with your projects. Our expertise allows us to provide students with high-quality academic writing, editing & proofreading services.Free Features
Free revision policy
$10Free bibliography & reference
$8Free title page
$8Free formatting
$8How Our Dissertation Writing Service Works
First, you will need to complete an order form. It's not difficult but, if anything is unclear, you may always chat with us so that we can guide you through it. On the order form, you will need to include some basic information concerning your order: subject, topic, number of pages, etc. We also encourage our clients to upload any relevant information or sources that will help.
Complete the order formOnce we have all the information and instructions that we need, we select the most suitable writer for your assignment. While everything seems to be clear, the writer, who has complete knowledge of the subject, may need clarification from you. It is at that point that you would receive a call or email from us.
Writer’s assignmentAs soon as the writer has finished, it will be delivered both to the website and to your email address so that you will not miss it. If your deadline is close at hand, we will place a call to you to make sure that you receive the paper on time.
Completing the order and download