Secrets of steganography /
Thomas, Rachael L.,
Secrets of steganography / Rachael L. Thomas. - 32 pages : color illustrations ; 24 cm. - Cryptology (Alternator books) . - Thomas, Rachael L. Cryptology. .
Includes index.
What is steganography? -- Ancient steganography -- Steganography in war -- Steganography in digital media -- Conclusion -- Crack it! Make your own Cardan grille.
"Steganography is the art of concealing messages in plain sight. Read about invisible inks, the Cardano Grille, the use of microdots in WWI, and the butterfly maps of Lord Baden-Powell"--
Ages 8-12. Grades 4-6.
9781728404622 1728404622
2020019914
Cryptography--History--Juvenile literature.
Ciphers--History--Juvenile literature.
Secrets of steganography / Rachael L. Thomas. - 32 pages : color illustrations ; 24 cm. - Cryptology (Alternator books) . - Thomas, Rachael L. Cryptology. .
Includes index.
What is steganography? -- Ancient steganography -- Steganography in war -- Steganography in digital media -- Conclusion -- Crack it! Make your own Cardan grille.
"Steganography is the art of concealing messages in plain sight. Read about invisible inks, the Cardano Grille, the use of microdots in WWI, and the butterfly maps of Lord Baden-Powell"--
Ages 8-12. Grades 4-6.
9781728404622 1728404622
2020019914
Cryptography--History--Juvenile literature.
Ciphers--History--Juvenile literature.