3. Decrypt the letters XMMIFZXQFLKP if it was encrypted using an alphabetic Caesar shift cipher with shift 23 right. Completethe table and write the decrypted message below.Original A BCDEFGHIJ KLMN 0 PQR STUV W XY ZMaps toDecrypted message for XMMIFZXQFLK:

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Answered: 3. Decrypt the letters XMMIFZXQFLKP if…

Elements Of Modern Algebra

8th Edition

ISBN:9781285463230

Author:Gilbert, Linda, Jimmie

Publisher:Gilbert, Linda, Jimmie

Chapter2: The Integers

Section2.7: Introduction To Coding Theory (optional)

Problem 4E

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Suppose that in an RSA Public Key Cryptosystem, the public key is e=13,m=77. Encrypt the message "go for it" using two-digit blocks and the 27-letter alphabet A from Example 2. What is the secret key d? Example 2 Translation Cipher Associate the n letters of the "alphabet" with the integers 0,1,2,3.....n1. Let A={ 0,1,2,3.....n-1 } and define the mapping f:AA by f(x)=x+kmodn where k is the key, the number of positions from the plaintext to the ciphertext. If our alphabet consists of a through z, in natural order, followed by a blank, then we have 27 "letters" that we associate with the integers 0,1,2,...,26 as follows: Alphabet:abcdef...vwxyzblankA:012345212223242526
Suppose that in an RSA Public Key Cryptosystem. Encrypt the message "algebra" using the -letter alphabet from Example 4. Use two-digit blocks. Use three-digit blocks. What is the secret key?
Suppose that in a long ciphertext message the letter occurred most frequently, followed in frequency by. Using the fact that in the -letter alphabet, described in Example, "blank" occurs most frequently, followed in frequency by, read the portion of the message enciphered using an affine mapping on. Write out the affine mapping and its inverse. Example 2 Translation Cipher Associate the letters of the "alphabet" with the integers. Let and define the mapping by where is the key, the number of positions from the plaintext to the ciphertext. If our alphabet consists of through, in natural order, followed by a blank, then we have "letters" that we associate with the integers as follows:
Suppose the alphabet consists of a through z, in natural order, followed by a blank and then the digits 0 through 9, in natural order. Associate these "letters" with the numbers 0,1,2,...,36, respectively, thus forming a 37-letter alphabet, D. Use the affine cipher to decipher the message X01916R916546M9CN1L6B1LL6X0RZ6UII if you know that the plaintext message begins with "t" followed by "h". Write out the affine mapping f and its inverse.
Decrypt the word OSCEG if it was encrypted using an alphabetic Caesar shift cipher that starts with shift 9 (mapping A to J), and shifts one additional space after each character is encrypted.=______________(Alphabetic means we're only using the characters ABCDEFGHIJKLMNOPQRSTUVWXYZ)
Decrypt the ciphertext message “LEWLYPLUJL PZ H NYLHA ALHJOLY” that was encrypted with the shift cipher with shift k = 7.
Suppose that the ciphertext ERC WYJJMGMIRXPC EHZERGIH XIGLRSPSKC MW MRHMWXMRKYMWLEFPI JVSQ QEKMG was produced by encrypting a plaintext message using a shift cipher. What is the original plaintext?
Encrypt the word THIRD using an alphabetic Caesar shift cipher that starts with shift 3 (mapping A to D), and shifts one additional space after each character is encrypted.=__________Alphabetic means we're only using the characters ABCDEFGHIJKLMNOPQRSTUVWXYZ
Encrypt the message APPLES AND ORANGES using a shift cipher with key k = 13.
Use the Caesar cipher (shift of 3 places) to encryptBRAVE
Decrypt these messages that were encrypted using the Caesar cipher.a) EOXH MHDQVb) WHVW WRGDBc) HDW GLP VXP
Encrypt the message KILLTHEBEAST using shift cipher with K=18.

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3. Decrypt the letters XMMIFZXQFLKP if it was encrypted using an alphabetic Caesar shift cipher with shift 23 right. Complete the table and write the decrypted message below. Original | A | в | с D E F G HIJKLMNO PQRS TUV W XY Z Maps to Decrypted message for XMMIFZXQFLK: