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

 - 6th ed. 
 - India  Pearson  2015 
 - 660p.  ill.; 
<br/><br/><label>ISBN: </label>9789332518773 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operating systems (Computers).
<br/><br/><label>Dewey Class. No.: </label>005.8 STA