Kaufman, Charlie <br/><br/>
Network security :   private communication in a public world / 
Charlie Kaufman, Radia Perlman, Mike Speciner 
 - 2nd ed 
 - Upper Saddle River, NJ:   Prentice Hall PTR,   2002 
 - xxvi, 713 p.;   25 cm 
<br/><br/> Includes bibliographical references (p. 675-684), glossary and index 
<br/><br/><label>ISBN: </label>0130460192 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer security<br/>Computers--Access control<br/>Electronic data processing departments--Security measures