Forouzan, Behrous A. , Mukhopadhyay, Debdeep . <br/><br/>
Cryptography and network security  

 - 2nd  
 - New Delhi;  Tata McGraw Hill Education Private Limited   2011 
<br/><br/><label>ISBN: </label>9780070702080 
<br/><br/><label>Dewey Class. No.: </label>005.8   / FOR