Sehgal, Umesh <br/><br/>
Network security and cryptography 
Umesh Sehgal 
 - Daryaganj, New Delhi :  S.K. Kataria & Sons,  2020. 
 - 342 pages :  illustrations ;  23 cm. 
<br/><br/>Include indexes 
<br/><br/><label>ISBN: </label>9789350146637 
<br/><br/><label>Subjects--Personal Names: </label><br/>1. Computer Networks -- Security Measures.<br/>2. Computer Security.
<br/><br/><label>LC Class. No.: </label>TK 5102.5 S41 2020