Stallings, William <br/><br/>
Cryptography & Network Security. 

 - 3rd. 
 - New Delhi.  PHI.  2004 
 - xiv, 681p. 
<br/><br/><label>ISBN: </label> RS 295.00 
<br/><br/><label>Dewey Class. No.: </label>005.82 STA