Use XOR to encode and ecode a message : XOR « Operators statements « C++ Tutorial

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C++ Tutorial » Operators statements » XOR

3.12.2.Use XOR to encode and ecode a message

#include <iostream> 

using namespace std; 

 

int main() 

{ 

  char msg[] = "This is a test"; 

  char key = 123; 

 

  cout << "Original message: " << msg << "\n"; 

 

  for(int i = 0 ; i < strlen(msg); i++)  

    msg[i] = msg[i] ^ key; 

 

  cout << "Encoded message: " << msg << "\n"; 

 

  for(int i = 0 ; i < strlen(msg); i++)  

    msg[i] = msg[i] ^ key; 

 

  cout << "Decoded message: " << msg << "\n"; 

 

  return 0; 

}

Original message: This is a test
Encoded message: /[[?[��
Decoded message: This is a test

3.12.XOR
	3.12.1.	Demonstrate bitwise exclusive OR
	3.12.2.	Use XOR to encode and ecode a message

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