Stallings, William. <br/><br/>
Cryptography and network security :  principles and practice / 
William Stallings. 
 - 7th ed.  
 - Malaysia :  Pearson,  c2020. 
 - 766 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9789673498208 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Networks.<br/>Data encryption (Computer science).
<br/><br/><label>Dewey Class. No.: </label>005.8  / STA