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

 - 5th ed 
 - Pearson, New Delhi  2011 
 - xxx,743 
<br/><br/><label>ISBN: </label>978-81-317-6166-3 
<br/><br/><label>Dewey Class. No.: </label>001.5436 Sta