Stallings, William <br/><br/>
Cryptography and network security : principles and practice 
William Stallings 
 - 5th ed. 
 - New Delhi  Pearson education  2011 
 - 743 p. 
<br/><br/><label>ISBN: </label>9788131761663 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks--Security measures
<br/><br/><label>Dewey Class. No.: </label>005.8