Maurice Tutor

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Algebra,Applied Sciences See all
Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
Last Sign in: 399 Weeks Ago
Questions Answered: 66690
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Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 16 Jul 2017 My Price 5.00

Caesar cipher

We consider a Caesar cipher and assume that the plaintext message is in English. Decrypt the following ciphertext by giving a brief explanation: KNXMNSLKW JXMBF Y JW GJSIXF IRNY XB TW IKNXMW F SIT AJWMJQRNSLF SDIF D Note: Use the following frequency distribution of the letters in the English language for the cryptanalysis:Table 1: a b c d e f g h i j k l m 8, 05 1, 62 3, 2 3, 65 12, 31 2, 28 1, 61 5, 14 7, 18 0, 1 0, 52 4, 03 2, 25 n o p q r s t u v w x y z 7, 19 7, 94 2, 29 0, 20 6, 03 6, 59 9, 59 3, 1 0, 93 2, 03 0, 2 1, 88 0, 09(a) What can be the main drawback of the substitution cipher given above?(b) Caesar cipher is an example of classical cryptosystem. Is this statement true? Why or why not?(c) Steganography is the art and science of hiding information by embedding messages within other, seemingly harmless messages. Take the third letter in each word of the encrypted message above and find the emerging message.

Answers

Maurice Tutor
(5)
Status NEW Posted 16 Jul 2017 09:07 PM My Price 5.00

Hel-----------lo -----------Sir-----------/Ma-----------dam----------- Â----------- Th-----------ank----------- Yo-----------u f-----------or -----------usi-----------ng -----------our----------- we-----------bsi-----------te -----------and----------- ac-----------qui-----------sit-----------ion----------- of----------- my----------- po-----------ste-----------d s-----------olu-----------tio-----------n. -----------Ple-----------ase----------- pi-----------ng -----------me -----------on -----------cha-----------t I----------- am----------- on-----------lin-----------e o-----------r i-----------nbo-----------x m-----------e a----------- me-----------ssa-----------ge -----------I w-----------ill-----------

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