a)Given a 64 bit plaintext FFFE 397D AC28 8855 and 48 bit Round key 4D77 32C5 29EF, perform one round DES encryption and decrypt the computed cipher retrieving the original input.   b) Given a 56-bit key 88DF E9DC C277 CA, compute 48 bit Round1, Round2 and Round3 keys

Q: Encrypt : QuiZ Cresar cypher is OVER using the with $ (p) = p+18 (mod 2b Let AこO, B=, Z=25

A: Given plain text is QUIZ IS OVER Also given f(p) = p+18(mod 26) So, key is 18

Q: The probability that at least one of the bits is 0 in a sequence of 5 bits is 31/25?

A: We are going to find out the probability of finding 0  that at least in one of bits in sequence of 5…

Q: Which of the following determines if a Forward Error Correction (FEC) scheme has even parity? O A.…

A: Option C i.e. The number of code bits is an even number  is the correct option for Forward Error…

Q: The decrypted message of fdhvdu fiskhu is: Blank 1 *Hint the text was encrypted using f(p) - (p+3)…

A: To decrypt the message in first we just need to decrease the value by 3 characters to decrypt the…

Q: Match the proper answers to each question: The smallest 8-bit signed number in Hex is: The smallest…

A: Below I have provided a solution for the given question.

Q: What is the minimum (smallest) count in binary? What is the maximum count (in binary) How many…

A:

Q: The very first step in the SHA1 algorithm is to pad the message so that it is a multiple of 512…

A: Including the length of the message in the padding process of the SHA-1 algorithm (and other similar…

Q: [RC4) RC4 is a stream cipher standard that was used widely on the Internet. Read the below…

A: Here i explain about RC4:…

Q: 3. (b) A sender needs to send the four data items Ox1236, OXABCC, OX03BC, and OXEEEE. To avoid…

A: Four data items are: 0x1236 0xABCC 0x03BC 0xEEEE 0x is the prefix that is used to denote the data…

Q: 2. , A string encoded with H(12,8) SECDED is received as 0x500 Is it in error? Which bits are in…

A:

Q: If an unsigned 8-bit integer were to be extended to a 16-bit one, the first 8 most significant bits…

A: The option is the right response to the questions ("False") EXPLANATION: The most significant end of…

Q: In AES, a 128-bit key is expanded to 44 words which are used for each round. If the round key EB C2…

A: -> AES is a symmetrical block cipher algorithm that takes plain text in blocks of 128 bits and…

Q: Suppose that the following abbreviated alphabet is used: S t letter e hi k 1 r binary 000 001 010…

A: The correct solution for the above mentioned question is given in the next steps for your reference

Q: Determine the decimal values of the three values below: • (1010101010)2 • (5713)8 • (F A83)16 (a)…

A: a) Assuming the above three values are unsigned numbers.  Given number (1010101010)2 Steps to…

Q: Do multiplication of 8 bit and 16 bit numbers with ✓ Algorithm ✓ Screenshots of Program &output…

A: Answer is in next step.

Q: S1(0)= S2(0)= S3(0)= S4(0)= S5(0)= S6(0)= S7(0)= S8(0)= Next, write (in Hexadecimal) the output of…

A: S boxes are the substitution boxes used in DES. DES uses 8 boxes each with 6 bit input and 4 bit…

Q: Calculate (4.41762275 *10-3 + 6.34225625 *10-3) * 1.05225 * 102 by hand, assuming each of the values…

A: The calculation by hand, we will first need to convert the given numbers to the half precision…

Q: Let M be the plaintext message M = MALAYSIA and the private key, K = ISSOGOOD a) Convert this…

A: I have provided a solution in step2.

Q: (a) Covert the Hexadecimal number 3BC into its Binary equivalent (b) Convert the Binary number…

A: According to the information given:- We have to convert according to the given instruction.

Q: A1D6D039776742 2514B829BF486A

A: a. Key: 7CA110454A1A6E57 Plaintext: 01A1D6D039776742 Encryption: After initial permutation:…

Q: Q4) Design a Knapsack public key cryptosystem, then encrypt the plaintext "ABC" using this system.…

A: Public-key cryptography needs two keys. One key tells you how to encrypt (or code) a message and…

Q: Given the xor-encoded file content is 000111111000001111100001, and the key is…

A: The Answer is

Q: After executing : MOV SP-1111100000111B MOV CL,71 XLOP: POP ВР DEC CL JNZ XLOP HLT Calculate SP in…

A: Here the first instruction will make SP=1111100000111B=1F07H The next instruction will make CL=71…

Q: Let 2B7E151628AED2A6ABF7158809CF4F3C be a 128-bit AES key (given in hexadecimal notation). Use the…

A: #include <stdio.h> #include <ctype.h> #include "aes.h" #define BLOCK_LEN 16 #define OK 0…

Q: Computer Science -Use 5-Bit RC4 to decrypt the message XNV@H -Translate between characters and…

A: CONVERSION: First step to convert the given cipher text to its corresponding binary formation:…

Q: If we use the 128-bit binary field extension F 128 to decode the 127-bit binary BCH code at a…

A: The 127-bit binary BCH code can be decoded using the 128-bit binary field extension F 128, which…

Q: Decode the message: 22 31 58 102 55 70 75 85 22 31 3 encoding matrix using (, as an

A: Given encoded message is: 22 31 58 102 55 70 75 85 22 31 The encoding matrix is: 3-2-11

Q: 9. In the DES algorithm, although the key size is 64 bits only 48bits are used for the encryption…

A: Answer: ii

Q: Demonstrate RSA encryption and decryption on the following values: -q=37, e=7, M=22, (Note: write…

A: RSA algorithm: Step1: Select any two prime numbers such as p and q Here, p = 5 and q = 37 Step2:…

Q: How many bit strings of length 10 a) begin with 101? b) have weight 3 and begin with 101? c) have…

A: According to the Question below the solution:

Q: Using CBC  and IV=101, Encrypt 111100011100? Input Output 000 110 001 111 010 101 011…

A: To encrypt the given plaintext "111100011100" using Cipher Block Chaining (CBC) mode with an Initial…

Q: Use cipher hill decryption to decrypt the following text:…

A: Hill cipher is a polygraphic substitution cipher based on linear algebra.Each letter is represented…

Q: - The RSA scheme is a ------- cipher O - block O - stream O - block and stream - non of them

A: answer is

Q: Let M be the plaintext message M = MALAYSIA and the private key, K = ISSOGOOD Using the appropriate…

A: (a) The final output of the key for round 1 is F2FCE1F5

Q: Use the congruence C E (3p + 4) (mod 26) to decode the message E COWLS WLBSFI WTNA ET WFPSF LW…

A: The question is to decode the message using the given equation.

Q: 1. Let M be the plaintext message M = MALAYSIA and the private key, K = ISSOGOOD a) Using the…

A: (a) The final output of the key for round 1 is F2FCE1F5

Q: Translate code starting at address 0x300 to assy lang. Memory Address 44 02 Ох030а 44 00 Ох0308 f2…

A: In above the is machine code.here we explain machine code to assembly language.

Q: se 5-Bit RC4 to decrypt the message XNV@H -Translate between characters and numbers using ASCII…

A: XNV@H will be x = 25 N =13 V = 22 @ = 0 H = 8

Q: 2 1 31 101 2 1 The following message was encoded using the 4x4 encoding matrix B== 1221 2 3 2 3 85…

A: According to the question , we have to decode the given code according to matrix. In step 2, we will…

Q: a) For a bit string S, let S denote the complement, obtained by swapping every 1 for a 0 and every 0…

A: Introduction: DES Algorithm: The Data Encryption Standard (DES) is a symmetric-key block cipher…

Q: Fill in the empty spaces in the following table. As you do, please be aware of the following: • All…

A: 16-Bit Binary:   16-Bit Binary representation will be as per the below diagram, Every bit from…