Final Lab Assignment- TEAM WORK

Steps

• Preliminary Part (10 points): Binary Numbers and ASCII, One-Time Pads and Pseudo-random Bit Generation - Chapter 2.8 - 2.10.
  Requirements:
  • Read chapters 2.8 - 2.10 (pp.38 - 43)

  • Create your own example that generates random key using Blum-Blum-Shub(BBS) pseudo-random bit generator. See example on page 43. Document the steps in word file.

  • Submission: Due day Monday, April 20 by the end of the class. You can write a program that implements the algorithm, but it is not required. You will see that some steps are similar to steps you performed in RSA implementation.

• Main Part: Data Encryption Standard - DES: Chapter 4

  • Step 1 (70 points): Introduction and Simplified DES (4.1, 4.2 pp. 113 - 118)
    Requirements: Create 2 examples demonstrating simplified DES encryption/decryption process. Choose the same S-boxes (S1 and S2) that are used in the textbook on page 116. For this step you only need to perform 2 rounds. Document all steps in Word file.
    Due Day: Monday April 27 by the end of the class.

  • Step 2 (20 points): Modes of Operations: ECB and CBC: 4.5.1 and 4.5.2. Requirements: Create your own example to demonstrate each mode.
    Due Day: Friday May 1, 11 AM - Start of the Class (!!) SHARP DEADLINE NO LATE SUBMISSIONS IT IS A LAST DAY OF CLASSES!

  • Bonus (10 points): Computer Problem 1(a) and 1(b) p. 149: Write a program that performs one round of the simplified DES-type algorithm presented in Section 4.2

    Answer TESING QUIZ - Due Day May 1 by the end of the class