Ferguson, Niels, <br/><br/>
Practical cryptography / 
Niels Ferguson, Bruce Schneier. 
 - [Chichester] :  Wiley,  c2003. 
 - xx, 410 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>047122894x 0471223573 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cryptography<br/>Computer security
<br/><br/><label>LC Class. No.: </label>QA76.9 
<br/><br/><label>Dewey Class. No.: </label>005.82