Singh, Simon <br/><br/>
The code book:  the science of secrecy from ancient Egypt to quantum cryptography/ 
Simon Singh. 
 - New York:  Anchor Books,  2000, c1999. 
 - xvi, 411 p.:  ill., map, ports.;  25 cm. 
<br/><br/> Includes index. 
<br/><br/>Cipher of Mary Queen of Scots -- Le Chiffre indechiffrable -- Mechanization of secrecy -- Cracking the enigma -- Language barrier -- Alice and Bob go public -- Pretty good privacy -- Quantum leap into the future. 
<br/><br/><label>ISBN: </label>0385495323 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cryptography--History.<br/>Ciphers--History.<br/>Confidential communications.<br/>Data encryption (Computer science)
<br/><br/><label>Dewey Class. No.: </label>510  / S617c