"Stallings, William" <br/><br/>
Cryptography and network security/ 
William Stallings 
 - 4th 
 - New Delhi:  "Prentice Hall,"  2007 
 - 680p. 
<br/><br/><label>ISBN: </label>978-81-203-3018-4 
<br/><br/><label>Subjects--Index Terms: </label>Crytpgraphy 
<br/><br/><label>Dewey Class. No.: </label>4.6