Stalling, William, <br/><br/>
Cryptography and network security :   principles and practices /  
by William Stallings  
 - 4th. 
 - New Delhi:  PHIlearning pvt. ltd.,  2009. 
 - 680p:  25cm. 
<br/><br/><label>ISBN: </label>978-81-203-3018-4 
<br/><br/><label>Subjects--Index Terms: </label>Computer science Cryptography and network security 
<br/><br/><label>Dewey Class. No.: </label>005.82