Stallings, William <br/><br/>
Cryptography and network security principles and practices 

 - 4th ed. 
 - New Delhi  Pearson/Prentice Hall  2009 
 - xvi,680p.  24cm.  PB 
<br/><br/><label>ISBN: </label>9788177587746 
<br/><br/><label>Dewey Class. No.: </label>005.82  / STA