We have the long tradition of sending encrypted or puzzle-like postcards to our local hackerspace. Three years ago we created this postcard: https://entropia.de

We have the long tradition of sending encrypted or puzzle-like postcards to our local hackerspace. Three years ago we created this postcard: https://entropia.de/Datei:2015-01-27-back.jpg https://entropia.de/Datei:2015-01-27-back.jpg It's 200 bytes, a valid x85 ELF program with a deceptive 'strings' greeting message and an additional hidden message. Run at your own risk ;-) The machine readable version can be found here: https://entropia.de/Cryptierte_Postcarten https://entropia.de/Cryptierte_Postcarten