   Chapter 8.2, Problem 58ES Mathematical Excursions (MindTap C...

4th Edition
Richard N. Aufmann + 3 others
ISBN: 9781305965584

Solutions

Chapter
Section Mathematical Excursions (MindTap C...

4th Edition
Richard N. Aufmann + 3 others
ISBN: 9781305965584
Textbook Problem

Encryption Use the encrypting congruence c ≡ ( 3 p + 11 ) mod 26 to code the message NONE SHALL PASS.

To determine

Use the encrypting congruence c(3p+11)mod26 to code the message “NONE SHALL PASS”

Explanation

Given: The message is “NONE SHALL PASS” and the congruence for encrypting is c(3p+11)mod26

Calculation:

The word in plaintext is given as

NONE SHALL PASS

Congruence is c(3p+11)mod26

Encryption is carried as follows

N  c=(52+11)mod26=63mod26=11   Coded as K

O  c=(45+11)mod26=56mod26=4   Coded as D

E  c=(15+11)mod26=26mod26=0   Coded as Z

S  c=(

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