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

 - 6th ed . 
 - Pearson  New Delhi  2014 
 - 660 
<br/><br/>
<br/><br/><br/>E 
<br/><br/><label>Universal Decimal Class. No.: </label>001.5436 Sta