Stallings, William <br/><br/>
Cryptography and network security : principles and practice 
William Stallings 
 - 4th ed. 
 - New Delhi  Pearson Education  2008  
 - xvi,680p.:ill.;   24cm.   
<br/><br/> library has 5th ed. 6th ed. and 8th ed. also. 
<br/><br/><label>ISBN: </label>9788177587746  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cryptography <br/>Computer  network security
<br/><br/><label>Dewey Class. No.: </label>001.64404  / STA