Forouzan, Behrouz A. <br/><br/>
Cryptography and network security  , 
Behrouz A. Forouzan , Debdeep Mukhopadhyay 
 - Third edition 
 - Chennai,   Mcgraw Hill Education  2019 
<br/><br/><label>ISBN: </label>9789339220945 
<br/><br/><label>Dewey Class. No.: </label>005.8  / FOR