Shyamala, C K; Harini, N & Padmanabhan, T R <br/><br/>
Cryptography and security  

 - Wiley   New Delhi  2011 
 - xxx,529 
<br/><br/>
<br/><br/><br/>E 
<br/><br/><label>Universal Decimal Class. No.: </label>001.5436 Shy