The below code was written for Affine encoder:
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
Related questions
Question
![The below code was written for
Affine encoder: *
clc;clear all;close all
c=input ('enter ciphertext: ','s');
c=upper (c);
a -input ('enter value a= ');
input ('enter value b-');
length (c);
lc
al-[1 3 5 79 11 15 17 19 21 23 25];
a2=[1 9 21 15 3 19 7 23 11 5 17 25];
s-0;
for i-1:12
if al (i)==a
s-i3;
end
end
ia=a2 (s);
for i-1:lc
k=int16(c (i))-65;
p(i)-mod ((ia* (k-b)), 26);
end
p-char (p+97)
O True
O False](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa4ba0509-9e99-4806-b74d-e917509070dd%2Fed892bdf-8feb-4d87-9edb-9a25c1aeb985%2F6l11kdh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The below code was written for
Affine encoder: *
clc;clear all;close all
c=input ('enter ciphertext: ','s');
c=upper (c);
a -input ('enter value a= ');
input ('enter value b-');
length (c);
lc
al-[1 3 5 79 11 15 17 19 21 23 25];
a2=[1 9 21 15 3 19 7 23 11 5 17 25];
s-0;
for i-1:12
if al (i)==a
s-i3;
end
end
ia=a2 (s);
for i-1:lc
k=int16(c (i))-65;
p(i)-mod ((ia* (k-b)), 26);
end
p-char (p+97)
O True
O False
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