Use XOR to encode and decode a message : Operator bitwise « Language Basics « C# / C Sharp






Use XOR to encode and decode a message

Use XOR to encode and decode a message
/*
C#: The Complete Reference 
by Herbert Schildt 

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/
// Use XOR to encode and decode a message. 
 
using System; 
 
public class Encode {  
  public static void Main() { 
    char ch1 = 'H'; 
    char ch2 = 'i'; 
    char ch3 = '!'; 
 
    int key = 88; 
 
    Console.WriteLine("Original message: " + 
                      ch1 + ch2 + ch3); 
 
    // encode the message 
    ch1 = (char) (ch1 ^ key); 
    ch2 = (char) (ch2 ^ key); 
    ch3 = (char) (ch3 ^ key); 
 
    Console.WriteLine("Encoded message: " +  
                      ch1 + ch2 + ch3); 
 
    // decode the message 
    ch1 = (char) (ch1 ^ key); 
    ch2 = (char) (ch2 ^ key); 
    ch3 = (char) (ch3 ^ key); 
    
    Console.WriteLine("Decoded message: " + 
                      ch1 + ch2 + ch3); 
  } 
}

           
       








Related examples in the same category

1.Bit Operators: move
2.Bit operator
3.Bit move operator
4.Bit and, or, xor, not operator
5.Bit Shift operator
6.Shift Operators 2
7.Use bitwise AND to make a number evenUse bitwise AND to make a number even
8.Use bitwise AND to determine if a number is oddUse bitwise AND to determine if a number is odd
9.Display the bits within a byteDisplay the bits within a byte
10.Use bitwise OR to make a number oddUse bitwise OR to make a number odd
11.Demonstrate the bitwise NOTDemonstrate the bitwise NOT
12.Demonstrate the shift operatorsDemonstrate the shift operators
13.Use the shift operators to multiply and divide by 2Use the shift operators to multiply and divide by 2
14.Bitwise operationBitwise operation
15.Show bitsShow bits
16.A class that displays the binary representation of a valueA class that displays the binary representation of a value
17.Bitwise Operators 2