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The cryptoclub : using mathematics to make and break secret codes /

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Join the kids of the Cryptoclub as they apply basic math to make and break secret codes, while learning about different ciphers that have been around for hundreds of years.

Bibliographic Details
Main Author: Beissinger, Janet
Corporate Author: Taylor & Francis
Other Authors: Pless, Vera
Format: eBook
Language:English
Published: Wellesley, Mass. : A K Peters, ©2006.
Subjects:
Mathematics > Juvenile literature.
Cryptography > Juvenile literature.
Mathématiques > Ouvrages pour la jeunesse.
Cryptographie > Ouvrages pour la jeunesse.
Cryptography
Mathematics
Electronic books.
Juvenile works
Online Access:Connect to the full text of this electronic book
Table of Contents:
  • 1. Caesar ciphers
  • 2. Sending messages with numbers
  • 3. Breaking Caesar ciphers
  • 4. Keyword ciphers
  • 5. Letter frequencies
  • 6. Breaking substitution ciphers
  • 7. Combining Caesar ciphers
  • 8. Cracking Vigenère ciphers when you know the key length
  • 9. Factoring
  • 10. Using common factors to crack Vigenère ciphers
  • 11. Introduction to modular arithmetic
  • 12. Applications of modular arithmetic
  • 13. Multiplicative ciphers
  • 14. Using inverses to decrypt
  • 15. Affine ciphers
  • 16. Finding prime numbers
  • 17. Raising to powers
  • 18. The RSA cryptosystem
  • 19. Revisiting inverses in modular arithmetic
  • 20. Sending RSA ciphers
  • Make your own cipher wheel.