Just type something press enter and let it jumble your phrase into a code. To decipher it just use your key and flick the switch, put in the code and let your phrase come back unharmed. MAKE SURE TO KEEP THE CODE'S KEY
Report bugs at the comment section. Very simple Key Decipher, check out others too! Simple text engine created by @CrimsonBeast12, check out his project too at: https://scratch.mit.edu/projects/666549696/