Forouzan, Behrouz A ; Mukhopadhyay, Debdeep <br/><br/>
Cryptography and network security 

 - 3rd. ed. 
 - New Delhi  McGraw Hill Education  2015. 
 - xxiv; 674 p. 
<br/><br/><label>ISBN: </label>9789339220945 
<br/><br/><label>Source: </label> 1121.00 PKR