PLEASE HELP! I am trying to create RSA program in C++ to encrypt data entered by the user. I have a few syntax erros.

Here is what I have so far :

#include

#include

using namespace std;

int main()

{

int ch, n, i

char s1[50], s2[50], key;

cout << "Please type your message: ";

cin.getline(s1, 50);

do

{

cout << " <<<>>> 1]Encrypt 2]Decrypt]n3]Exit Enter your choice: ";

cin >> ch;

switch (ch)

{

case 1: cout << "Enter the key character to encrypt data: ";

cin >> key;

for (i = 0; sl[i] != '\0'; i++)

{

s2[i] = s1[i] ^ key;

}

s2[i] = '\0';

cout << "Your data encrypted successfully Your secure character key is " << key;

cout << "Your encrypted data is --- " << s2;

break;

case 2: cout << "Enter the key character to decrypt data: ";

char t;

cin >> t;

if (key == t)

{

for (i = 0; s2[i] != '\0'; i++)

{

s2[i] = s2[i] ^ key;

}

cout << "Your decrypted data is " << s2;

}

else

cout << "Invalid character key ";

break;

case 3:break;

default:cout << "Invalid choice, try again ";

}

}while (ch != 3);

}

system("pause");

return 0;

}