Stallings, William. <br/><br/>
Cryptography and network security :  principles and practice / 
William Stallings. 
 - 3rd ed. 
 - New Delhi :  Pearson,  2006 
 - 686 p :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9788177580112 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks<br/>Data encryption
<br/><br/><label>Dewey Class. No.: </label>005.82  / STC