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Book

Secrets of steganography

Call Number

  • J 652.8 THOM (OSH)

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Publication Information

Minneapolis : Lerner Publications, [2022]

Physical Description

32 pages : color illustrations ; 24 cm.

Audience

Grades 4-6.

Summary

"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"--

Notes

Includes index.

Contents

  • What is steganography?
  • Ancient steganography
  • Steganography in war
  • Steganography in digital media
  • Conclusion
  • Crack it! Make your own Cardan grille.

Subjects