4. Consider the following table where a source 5 with 4 symbols has been encoded in binarycodes with 0 and 1. Identify which code is uniquely decodable and which code isinstantaneous (or prefix).Symbol Sis1s2s3s4Code 100011011Code 2010011Code 3010110111Code 40010110111

Answered: Image /qna-images/answer/9c4a36ab-1bcb-4197-b30d-28f2a7bbde64.jpg

Answered: 4. Consider the following table where a…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Cc.33.
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This question is about Perfect Codes in Coding Theory: You may use that a perfect code of length 13 and distance 3 exists over GF(3). A soccer betting form contains a list of 13 matches. Next to each listed match there are three fill-in boxes which correspond to the following three possible guesses: “first team wins”, “second team wins” or “tied match”. The bettor checks one box for each match. Describe a strategy for filling out the smallest number of forms so that at least one of the forms contains at least 12 correct guesses. How many forms need to be filled out under this strategy?
Suppose (n, d) = (55, 3) is the private key of an RSA cryptosystem. If the received ciphertext is C = 49 what is the corresponding plaintext? O 3 4 10 14
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What is the bit-reversed order of the numbers 0, 1, ... , 7? Write them all in binary (base 2) as 000, 001, ... , 111 and reverse each order. The 8 numbers are now __ .
kindly answer it perfectly
Q20. Perform the subtraction with the following unsigned binary numbers by taking the 2's complement of the subtrahend. (1) (ii) 11010-1101 11010-10000 100
a. Given p=23, q=7, and e=5, generate the public key (n,e) and the private key (n,d) using RSA Key generation algorithm. b. Given Bob's public key of (85, 7) and private key of (85, 55), show how Alice can encrypt m=7 to send to Bob. Show the ciphertext. c. Given Bob's public key of (85, 7) and private key of (85, 55), show how Bob can decrypt the ciphertext y=8 received from Alice. Show the plaintext. d. Using the fast exponentiation method (page 182), determine 535 mod 47

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4. Consider the following table where a source 5 with 4 symbols has been encoded in binary codes with 0 and 1. Identify which code is uniquely decodable and which code is instantaneous (or prefix). Symbol St s1 s2 s3 s4 Code 1 00 01 10 11 Code 2 0 1 00 11 Code 3 0 10 110 111 Code 4 0 01 011 0111