Hardy, Darel W. <br/><br/>
Applied algebra :  codes, ciphers, and discrete algorithms .-2nd ed. 
Darel W. Hardy, Fred Richman, Carol L. Walker. 
 - 2nd ed. 
 - Boca Raton :  CRC Press,  c2009. 
 - 410 p. :  ill. ; 
 - Discrete mathematics and its applications .
<br/><br/> "A Chapman & Hall book." 
<br/><br/><label>ISBN: </label>9781420071429 (hardcover : alk. paper) 1420071424 (hardcover : alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coding theory.<br/>Computer security--Mathematics.
<br/><br/><label>Universal Decimal Class. No.: </label>512:681.3.04  / HAR