William Stallings <br/><br/>
Cryptography and network security  principles and practice 

 - 4th 
 - USA  Pearson Prentice Hall  2006 
 - 680p 
<br/><br/><label>ISBN: </label>9780131873162 
<br/><br/><label>Dewey Class. No.: </label>005.8 WIL