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

 - 3rd ed. 
 - New Delhi  Prentice-Hall of India  2005 
 - xiv,681p.  PB  24cm. 
<br/><br/><label>ISBN: </label>8120323858 
<br/><br/><label>Dewey Class. No.: </label>005.82  / STA