Vacca, John R. <br/><br/>
Computer and Information Security Handbook   [electronic resource] / 
John R, Vacca. 
 - 3rd edition 
 - Saint Louis :  Elsevier Science,  2017. 
 - 1 online resource (1734 p.) 
<br/><br/> How Is Cryptography Done? 
<br/><br/><label>ISBN: </label>9780128039298 0128039299 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Networks--Security Measures<br/>Penetration testing (Computer security)