Codes and ciphers
Churchhouse, R. F.
Codes and ciphers Julius Caesar, the Enigma, and the internet / [electronic resource] : R.F. Churchhouse. - Cambridge ; New York : Cambridge University Press, 2002. - x, 240 p. : ill. ; 24 cm.
Includes bibliographical references and indexes.
Electronic reproduction.
Palo Alto, Calif. :
ebrary,
2009.
Available via World Wide Web.
Access may be limited to ebrary affiliated libraries.
Cryptography.
Ciphers.
Electronic books.
Z103 / .C48 2002eb
652/.8
Codes and ciphers Julius Caesar, the Enigma, and the internet / [electronic resource] : R.F. Churchhouse. - Cambridge ; New York : Cambridge University Press, 2002. - x, 240 p. : ill. ; 24 cm.
Includes bibliographical references and indexes.
Electronic reproduction.
Palo Alto, Calif. :
ebrary,
2009.
Available via World Wide Web.
Access may be limited to ebrary affiliated libraries.
Cryptography.
Ciphers.
Electronic books.
Z103 / .C48 2002eb
652/.8