Klima, Richard E. , <br/><br/>
Cryptology :  classical and modern with maplets / 
Richard E. Klima, Neil P. Sigmon. 
 - xiv, 541 pages :  illustrations ;  24 cm. 
 - Discrete mathematics and its applications .
<br/><br/><label>ISBN: </label>9781439872413 1439872414 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cryptography.<br/>Cryptography --Data processing.<br/>Data encryption (Computer science).<br/>Ciphers.
<br/><br/><label>LC Class. No.: </label>TK5102.94   / .K54 2012