The science of secrecy
Subtitle: the secret history of codes and codebreaking
Publisher: Fourth Estate
Published: 2000
Place of publication: London
Language: eng
Number of pages: 224
Subjects: Cryptography -- History.
Notes: Includes bibliographical references (p. 207-210) and index.
"Internet sites": p. 211-212.
Meant to accompany the Channel 4 television series.