A Moore circuit has one input and one output. The output is initially zero. The output is the same as the input just received, unless the input sequence 101 occurs, in which case the output stays 1 thereafter. Derive the state graph and table for the circuit. The overlap of inputs is allowed. Show your work. a) Draw the state graph with minimum number of states. b) Write down the state table.

1. 2. What is the purpose of S-Boxes in DES algorithm? a. Substitution and Permutation b. Nonlinear permutation and complexity c. Nonlinear substitution and choice d. Substitution and expansion Which of the following statements is false? a. A stream cipher is one that encrypts a digital data stream one bit or one byte at a time. b. A block cipher is one in which a block of plaintext is treated as a whole and used to produce a ciphertext block of equal length. c. Asymmetric ciphers use one key and symmetric ciphers use two keys. d. None items. 3. Which of the following statements is true? a. Cryptanalysis attack exploits the characteristics of the algorithm to attempt to deduce a specific plaintext or to deduce the key being used. b. Brute-force attacks try every possible key on a piece of cipher text until an intelligible translation into plaintext is obtained. c. In brute-force attacks on average, half of all possible keys must be tried to achieve success. d. All items. 4. Which of…

5^7 (mod 11) =_________________

Enter the program in Listing 2.9.2 and test it. Use Exercises 2.6 to test the program. First pic is the code. Second pic is what is needed to test the code.  Pls I have no idea when i fill in the numbers the code does nothing

TASK 1: Swap Brightest and Darkest Colors (15 – 20 min) Create a function LightDark which identifies the brightest color of a given image (closest to white) and swaps that color with the darkest color of the image (closest to black). HINT: The brightness of a color is proportional to the sum of its RGB values.

8,9

1. 2. 3. 4. 5. Convert each of the following decimal numbers to binary, octal, and hexadecimal numbers. (a) (915) 10 (b) (174.25) 10 Convert each of the following binary numbers to octal, hexadecimal, and decimal numbers using the most appropriate conversion method. (a) (101110)2 (b) (10101.11)2 Calculate A + B, A- B, A x B, and A+B for the following pair of binary numbers. (a) A = (1011010)2, B = (101111)2 Find the 2's complement of each of the following binary numbers assuming n=8. (a) 101010 (b) 0 (c) 11111111 Calculate A + B, A- B, -A + B, and -A - B for the following pair of numbers assuming a 2's complement number system and n-8. Check your results by decimal arithmetic. Explain any unusual results. A-1101011, B-0101010