Hershey, John. E. <br/><br/>
Cryptography demystified  [Book] / 
John E. Hershey. 
 - New York :  McGraw-Hill,  c2003. 
 - x, 356 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/> All. 
<br/><br/><label>ISBN: </label>0071406387 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cryptography.<br/>Cryptography--Problems, exercises, etc.
<br/><br/><label>Dewey Class. No.: </label>005.82