Stallings, William. <br/><br/>
Cryptography and network security :  principles and practice / 
William Stallings. 
 - 4th ed. 
 - New Delhi :  Pearson Educ.,  2006. 
 - xvi, 680 p. 
<br/><br/><label>ISBN: </label>8177587749, 8177587746 :  KES 2,750 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks--Security measures.<br/>Cryptography.
<br/><br/><label>LC Class. No.: </label>TK5105.59  / .S73 2006