Breaking the code with cryptography
Subtitle: analyzing patterns
By: Janey Levy.
Series: Math for the real world
Publisher: Rosen Pub. Group; Rosen Publishing Group
Published: 2006
Place of publication: New York
Language: eng
Subjects: Cryptography -- Juvenile literature.; Ciphers -- Juvenile literature.
Genres: Juvenile literature.
Notes: Includes index.
Table of contents: title: Secret messages; title: A simple substitution cipher; title: Other simple substitution ciphers; title: Polyalphabetic substitution ciphers; title: Transposition ciphers; title: Cryptography today.