How to compress the lyrics of Aloe Blacc's song "I Need a Dollar" using the text compression widget.
Black and White Pixelation
How to encode the letter 'B' using the black and white pixelation widget.
How to use the color pixelation widget with hexadecimal encoding.
These two widgets let students play with some classic schemes for both encrypting and "cracking" secret messages. Students can encrypt messages for friends, and, if they’re up for a challenge, try to crack messages for which they don’t know the secret key!
Frequency analysis widget
Vigenere cipher widget
Mapping of Lessons to Internet Concepts
How two students communicate with each other using the internet simulator widget.