subtracting 1 from it. Function main calls functions encrypt and decrypt and prints theencrypted string.// A simple encryption/decryption program#include "stdafx.h"#include using namespace std;// write the prototype for function encrypt// write the prototype function decryptint main(){// create a string to encryptchar string[] = "this is a secret!";cout « "Original string is : " « string « endl;encrypt(string);cout « "Encrypted string is : " « string <« endl;decrypt(string);cout « "Decrypted string is : " «string<< endl;return 0;}// encrypt datavoid encrypt(char e[]){// Write implementation for function encrypt} // end function encrypt// decrypt datavoid decrypt(char *ePtr)// Write implementation for function decrypt} // end function decryptSample outputE CAWINDOWSlsystem32\cmd.exeOriginal string is : this is a secret!Encrypted string is : uijt!jt!b!tfdsfu"Decrypted string is : this is a secret!Press any key to continue . 2. Write a simple encryption/decryption program. Function encrypt takes a characterpointer as a parameter and uses pointer-subscript notation to change the value in theaddress pointed to by adding 1 to it. Function decrypt takes a character pointer as aparameter and uses pointer notation to change the value in the address pointed to bysubtracting 1 from it. Function main calls functions encrypt and decrypt and prints theencrypted string.// A simple encryption/decryption program#include "stdafx.h"#include using namespace std;// write the prototype for function encrypt// write the prototype function decryptint main(){// create a string to encryptchar string[] = "this is a secret!";cout « "Original string is : " « string « endl;encrypt(string);cout « "Encrypted string is :« string <« endl;decrypt(string);cout <« "Decrypted string is :«string<< endl;

Introduction : Here we have to write a simple program of encryption / decryption . where Function…

Write a simple encryption/decryption program. Function encrypt takes a character pointer as a parameter and uses pointer-subscript notation to change the value in the address pointed to by adding 1 to it. Function decrypt takes a character pointer as a parameter and uses pointer notation to change the value in the address pointed to by

Write a simple encryption/decryption program. Function encrypt takes a character pointer as a parameter and uses pointer-subscript notation to change the value in the address pointed to by adding 1 to it. Function decrypt takes a character pointer as a parameter and uses pointer notation to change the value in the address pointed to by

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Question

subtracting 1 from it. Function main calls functions encrypt and decrypt and prints the
encrypted string.
// A simple encryption/decryption program
#include "stdafx.h"
#include <iostream>
using namespace std;
// write the prototype for function encrypt
// write the prototype function decrypt
int main()
{
// create a string to encrypt
char string[] = "this is a secret!";
cout « "Original string is : " « string « endl;
encrypt(string);
cout « "Encrypted string is : " « string <« endl;
decrypt(string);
cout « "Decrypted string is : " «string<< endl;
return 0;
}
// encrypt data
void encrypt(char e[])
{
// Write implementation for function encrypt
} // end function encrypt
// decrypt data
void decrypt(char *ePtr)
// Write implementation for function decrypt
} // end function decrypt
Sample output
E CAWINDOWSlsystem32\cmd.exe
Original string is : this is a secret!
Encrypted string is : uijt!jt!b!tfdsfu"
Decrypted string is : this is a secret!
Press any key to continue .

2. Write a simple encryption/decryption program. Function encrypt takes a character
pointer as a parameter and uses pointer-subscript notation to change the value in the
address pointed to by adding 1 to it. Function decrypt takes a character pointer as a
parameter and uses pointer notation to change the value in the address pointed to by
subtracting 1 from it. Function main calls functions encrypt and decrypt and prints the
encrypted string.
// A simple encryption/decryption program
#include "stdafx.h"
#include <iostream>
using namespace std;
// write the prototype for function encrypt
// write the prototype function decrypt
int main()
{
// create a string to encrypt
char string[] = "this is a secret!";
cout « "Original string is : " « string « endl;
encrypt(string);
cout « "Encrypted string is :
« string <« endl;
decrypt(string);
cout <« "Decrypted string is :
«string<< endl;

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