Stallings, William. <br/><br/>
Cryptography and network security :  principles and practice/ 
William Stallings. 
 - Indian subcontinent adaptation. 
 - UP ; India :  Pearson,  [c2017] 
 - 766 p : 
<br/><br/> First imp. 2017, Third imp. 2019, Fourth imp. 2018 
<br/><br/><label>ISBN: </label>9789332585225 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer security---
<br/><br/><label>Dewey Class. No.: </label>005.8S7828Cr,7