Elbirt, Adam J. <br/><br/>
Understanding and applying cryptography and data security / 
Adam J. Elbirt 
 - Boca Raton, Fl. :  CRC Press,  2009 
 - xxvii, 637 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781420061604 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer security<br/>Cryptography