title: XOR a plain text with cipher text to retrieve the key (C1 XOR P1=K, P1 XOR K=C1)
body: <p>Let us consider the plain text <code>This is a known Message!</code> and the cipher text <code>a469b1c502c1cab966965e50425438e1bb1b5f9037a4c159</code>. The cipher text is the encryption of the plain text. </p>
  
  <p>Does any one know of any good examples of <code>C1 XOR P1 = K</code>?</p>
  
  <p>I tried converting plain text to hexadecimal and then both <code>p1</code> and <code>c1</code> to binary to <code>XOR</code> them. It does not seem to work that way. Once I get the binary, I convert it back to hexadecimal.  I am pretty sure I did it correctly but I don't get the correct key. Does anyone have any advice on that? </p>
  
  <p>What I am looking for is some better examples of <code>XOR</code>ing. I do not think I am doing it correctly. </p>