Stallings,William <br/><br/>
Cryptography and network security:Principles and practises. 

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 -  Pearson Education  2003 
 - 681 
<br/><br/>  
<br/><br/><label>ISBN: </label>81-7808-902-5 
<br/><br/><label>Dewey Class. No.: </label>004.056.53