Cryptography and network security : with lab exercises 
Cryptography and network security with lab exercises 
 -  "255 p. : ill. ; 25 cm., hbk." 
 - New Delhi  Sonali Publications  2019 
<br/><br/><label>ISBN: </label>9788184115642 
<br/><br/><label>Dewey Class. No.: </label>005.82 PEN  / 22.005.82 PEN