Let Set A = {the quick brown fox jumped over the lazy dog} be a set of strings (two or more characters) formed by characters (single letters) in the standard alphabet. %3D Enumerate (assign numbers to) the alphabet as G|H 7 8 A E F M Q R V W X Y 2 3 4 5 6 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Consider the following encryption algorithm written in pseudo code: Encrypt(set): define f (x) = x + 13 mod 26. Now, Vx E characters of A, If x = 14 mod 26, f (x) Then x → If not,

Let Set A = {the quick brown fox jumped over the lazy dog} be a set of strings (two or more characters) formed by characters (single letters) in the standard alphabet. %3D Enumerate (assign numbers to) the alphabet as G|H 7 8 A E F M Q R V W X Y 2 3 4 5 6 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Consider the following encryption algorithm written in pseudo code: Encrypt(set): define f (x) = x + 13 mod 26. Now, Vx E characters of A, If x = 14 mod 26, f (x) Then x → If not,

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Let Set A = {the quick brown fox jumped over the lazy dog} be a set of strings (two or
more characters) formed by characters (single letters) in the standard alphabet.
%3D
Enumerate (assign numbers to) the alphabet as
A
В
C
D
F
G
K
M
N
P
Q
T
V
W
Y
1
2
6
8.
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Consider the following encryption algorithm written in pseudo code:
Encrypt(set):
define f (x) = x + 13 mod 26.
Now,
Vx E characters of A,
If x = 14 mod 26,
f(x)
Then x →
If not,
Then x → X
What is the overall effect of the Encrypt() algorithm / what effect does this algorithm
have on the alphabet?
What are the domain and codomain of the function f(x) used in Encrypt()? What is the
range? Explain.

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