Cryptography and network security : principles and practice 
Cryptography and network security principles and practice 
 - 6th. ed.  "xvi, 660 p. : ill. ; 24 cm." 
 - New Delhi  Prentice Hall  2014 
<br/><br/><label>ISBN: </label>9789332518773 
<br/><br/><label>Dewey Class. No.: </label>005.8 STA;2  / zzzzzzzz