Toolkit containing samples and various tools based on and around libnfc and crapto1, with emphasis on Mifare Classic NXP/Philips RFID cards. Special emphasis of the toolkit is on the following: 1) mifare classic weakness demonstration/exploitation 2) demonstrate use of libnfc (and ACR122 readers) 3) demonstrate use of Crapto1 implementation to confirm internal workings and to verify theoretical/practical weaknesses/attacks.