Gupta, Kailash N. <br/><br/>
Digital signature:  network security practice / 

 - New Delhi:  PHI ,  2006. 
 - X, 209 P., 
<br/><br/><label>ISBN: </label>8120325990 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Network security.
<br/><br/><label>Dewey Class. No.: </label>621.3821