Part 1: RFID Kit : http://www.fuzzysecurity.com/tutorials/rfid/1.html
Part 2: RFID locksmith : http://www.fuzzysecurity.com/tutorials/rfid/3.html
Part 3: EasyCard - Reverse Engineering an RFID payment system : http://www.fuzzysecurity.com/tutorials/rfid/4.html

Appendix A: Mifare Classic 101 : http://www.fuzzysecurity.com/tutorials/rfid/2.html

VIGIK : https://imgur.com/u7pmn4t
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