Share encrypted messages with your friends - true spymaster entertainment!

This PIC Mini-Enigma was born out of the author's interest in both encryption techniques and PIC microcontrollers. The initial idea was to create a PIC-based unit that would enable the user to type in a brief text message, which can then be encrypted at the press of a button. By the same token, if the encrypted message was typed into the unit it could be decoded into the original text message. This would enable two people to send secret messages to each other and be safe in the knowledge that the text would be very difficult to decipher without using the unit.

The design also has the unique capability of allowing the user to download a message to the data EEPROM (electrically erasable programmable read only memory) of a second PIC, housed in a tiny box, such as a matchbox. The information from the "matchbox" memory can then be retrieved by the other person at a later time by using their own Mini-Enigma unit.