Encryption is commonly used to disguise messageson the internet. A Caesar cipher performs a shift ofall of the characters in a string (based on their ASCIIvalues, see Table 2.1), e.g.h e l l o → m j q q tThe example shows a shift with a distance of 5characters, i.e. h(ASCII:104) → m(ASCII:109)Write a C/C++ program that asks the user to input aline of plaintext and the distance value and outputsan encrypted text using a Caesar cipher, with theASCII values range from 0 through 127. Useunderscores (ASCII: 95) to represent spacecharacters.Underscore characters should not be encrypted,and any character that is encrypted may notbecome an underscore. In this case, the charactershould be changed to the next character in theASCII table.The program should work for any printablecharacters.NB: No strings (datatype) or library functions maybe used.See Figure 2.1 for example output. ASCII-tabel verander word.crRangeo o TEX Graracior mASCII table.Die program moet vir enige vertoonbare karaktersThe program should work for any printablewerk.characters.NB: Geen strings (datatipe) of biblioteekfunksiesmag gebruik word nie.NB: No strings (datatype) or library functions maybe used.Sien Figuur 2.1 vir voorbeeld afvoer.See Figure 2.1 for example output.ASCII-Tabel I ASCII TableNUL16DLESP48648096112SOH17DC13349658197113alSTX18DC234506682R.98b.114ETX19DC33551678399115203637EOTDC4524.6884T.100d.116ENQ21NAK5369E85101117ACK22SYN38547086V.102118V7.BEL23ETB395571G.871036.119W8.BSCAN40568.72 H881041206.HTEM41576.738910512110LF26SUB4258749010612211VT27ESC43597591107k12312FF28FS446076921.10812413CR29GS45617793110912514SO30RS4662789411012615SI31US47637995111127DELTabel 2.1 / Table 2.1123 56 72342221234)96

PROGRAM: #include <stdio.h> #include <stdlib.h> int main() { int size=100;…

Answered: Encryption is commonly used to disguise…

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

Encryption is commonly used to disguise messages
on the internet. A Caesar cipher performs a shift of
all of the characters in a string (based on their ASCII
values, see Table 2.1), e.g.
h e l l o → m j q q t
The example shows a shift with a distance of 5
characters, i.e. h(ASCII:104) → m(ASCII:109)
Write a C/C++ program that asks the user to input a
line of plaintext and the distance value and outputs
an encrypted text using a Caesar cipher, with the
ASCII values range from 0 through 127. Use
underscores (ASCII: 95) to represent space
characters.
Underscore characters should not be encrypted,
and any character that is encrypted may not
become an underscore. In this case, the character
should be changed to the next character in the
ASCII table.
The program should work for any printable
characters.
NB: No strings (datatype) or library functions may
be used.
See Figure 2.1 for example output.

ASCII-tabel verander word.
crRangeo o TEX Graracior m
ASCII table.
Die program moet vir enige vertoonbare karakters
The program should work for any printable
werk.
characters.
NB: Geen strings (datatipe) of biblioteekfunksies
mag gebruik word nie.
NB: No strings (datatype) or library functions may
be used.
Sien Figuur 2.1 vir voorbeeld afvoer.
See Figure 2.1 for example output.
ASCII-Tabel I ASCII Table
NUL
16
DLE
SP
48
64
80
96
112
SOH
17
DC1
33
49
65
81
97
113
al
STX
18
DC2
34
50
66
82
R.
98
b.
114
ETX
19
DC3
35
51
67
83
99
115
20
36
37
EOT
DC4
52
4.
68
84
T.
100
d.
116
ENQ
21
NAK
53
69
E
85
101
117
ACK
22
SYN
38
54
70
86
V.
102
118
V
7.
BEL
23
ETB
39
55
71
G.
87
103
6.
119
W
8.
BS
CAN
40
56
8.
72 H
88
104
120
6.
HT
EM
41
57
6.
73
89
105
121
10
LF
26
SUB
42
58
74
90
106
122
11
VT
27
ESC
43
59
75
91
107
k
123
12
FF
28
FS
44
60
76
92
1.
108
124
13
CR
29
GS
45
61
77
93
1
109
125
14
SO
30
RS
46
62
78
94
110
126
15
SI
31
US
47
63
79
95
111
127
DEL
Tabel 2.1 / Table 2.1
123 56 7
234
222
123
4)
96

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