Stallings, W.  . <br/><br/>
Cryptography and network security : principles and practice /  
by William Stallings. 
 - 4th ed /  
 - Delhi :   Dorling Kindersley (India) Pvt. Ltd. ,   2007 
 - xvi, 680p :  
<br/><br/><label>ISBN: </label>81-7758-774-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer- Netwok security
<br/><br/><label>Dewey Class. No.: </label>BV  / P7;27