Kaufman, Charlie; Perlman, Radia; Speciner, Mike <br/><br/>
Network security  private communication in a public world 

 - 2nd ed. 
 - Pearson  Noida  2017 
 - xxxiv,638 
<br/><br/>
<br/><br/><br/>E 
<br/><br/><label>Universal Decimal Class. No.: </label>001.5436