Stallings, William. <br/><br/>
Cryptography and network security : principles and practice  principles and practice 
William Stallings. 
 - 4th ed. 
 - New Delhi :  Pearson/Prentice Hall,  c2006. 
 - xvi, 680 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0131873164 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks--Security measures.<br/>Data encryption (Computer science)<br/>Coding theory.<br/>Computer security.
<br/><br/><label>Dewey Class. No.: </label>005.8