I created this as a middle school teacher, last century. It still brings lots of joy and fun to the world of computing, critical thinking, and creative communication. I hope you enjoy it. Warm regards, Ken
- History of Cryptology
- Strategies for Deciphering
- Bifid Cipher
- Double Transposition Ciphers
- Graphical Ciphers
- Grille Method
- Hexadecimal
- Invisible Ink Mirror Images
- Letter Spokes Cipher Clock
- Letter Syllable Word Frequencies
- Map Cipher
- Alphabet and Word Correlated Ciphers
- Matrix Ciphers
- Morse Code
- Pig Latin
- Pig Pen Cipher
- Porta Table
- Simple Codes and Ciphers
- Spiral Cipher Clocks
- Transpositional Ciphers
- Vigenere Table
- Alphabet Wheel
- Binary
- Ascii
- Cipher Clocks
- Compass Cipher
- Concealment Ciphers
- Diagraphic Subsitution