Simpler cryptography

Cryptography Timeline

By Cameron Lee
  • 50 BCE

    Caesar Cipher

    Caesar Cipher
    A cryptography method used by the Romans where letters were substituted for other letters by shifting them a certain amount down the alphabet.
  • 1500

    Vigenère Cipher

    Vigenère Cipher
    A form of the Caesar Cipher that uses a square where each row shifts the alphabet by one letter. A key word is used to determine how the message will be encoded.

  • Pigpen Cipher

    Pigpen Cipher
    A cryptography method used by Freemasons where symbols and dots were used to represent letters.

  • Affine Cipher

    Affine Cipher
    An expansion on the Caesar cipher where instead of just shifting the letters, multiplication is involved. The formula is y = [a*x+b] mod 26.