Stallings, William. <br/><br/>
Cryptography and Network Security: Principles and Practices 

 - 3 
 - New Delhi  Prentice Hall  2006 
 - p.680 
<br/><br/><label>ISBN: </label>8177580116 
<br/><br/><label>Dewey Class. No.: </label>621.38196428 S775