-
Notifications
You must be signed in to change notification settings - Fork 0
/
ROT47.cpp
73 lines (59 loc) · 1.49 KB
/
ROT47.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
#include <iostream>
using namespace std;
void cipherEncryption(){
string message;
cout << "Enter message: ";
getline(cin, message);
cin.ignore();
int key = 47;
string encrypText = "";
for (int i = 0; i < message.length(); i++){
int temp = message[i] + key;
if(message[i] == 32){
encrypText += " ";
} else if (temp > 126){
temp -= 94;
encrypText += temp;
} else {
encrypText += temp;
} // if-else
} // for
cout << "Encrypted Text: " << encrypText;
}
void cipherDecryption(){
string message;
cout << "Enter message: ";
getline(cin, message);
cin.ignore();
int key = 47;
string decrypText = "";
for (int i = 0; i < message.length(); i++){
int temp = message[i] - key;
if(message[i] == 32){
decrypText += " ";
} else if (temp < 32){
temp += 94;
decrypText += temp;
} else {
decrypText += temp;
} // if-else
} // for
cout << "Decrypted Text: " << decrypText;
}
int main()
{
cout << "1. Encryption\n2. Decryption\nChoose(1,2): ";
int choice;
cin >> choice;
cin.ignore();
if (choice == 1){
cout << endl << "---Encryption---" << endl;
cipherEncryption();
} else if (choice == 2){
cout << endl << "---Decryption---" << endl;
cipherDecryption();
} else {
cout << "Invalid Choice";
}
return 0;
}