Forouzan,Behrouz.A <br/><br/>
Cryptography and network security 

 - 2nd ed. 
 - New Delhi  Tata McGraw Hill Education  2008-R2010 
 - xxiv,702p.  PB  24cm. 
<br/><br/> including index 
<br/><br/><label>ISBN: </label>9780070702080 
<br/><br/><label>Dewey Class. No.: </label>005.82  / FOR