Crack a Cipher with Brute Force
In this activity, you will use brute force to crack a Caesar cipher that makes sharing HAPPY, SAD, and ANGRY strings (sort of) private.
Example Transmitter Project: radio_send_images_caesar_key_unknown
- Flash your project into the transmitter micro:bit.
Example Receiver Project: radio_receive_images_caesar_brute_force
- Flash your project into the receiver micro:bit.
- Run the project and examine the output. Can you find the HAPPY/SAD/ANGRY text within the list. If you did, check the key value. As an attacker, you would substitute that key into radio_receive_images_caesar_sniffer to continue monitoring the data.
