Craig Young’s presentation on RFID during DEF CON 23: https://media.defcon.org/DEF%20CON%2023/DEF%20CON%2023%20presentations/DEFCON-23-Craig-Young-How-To-Train-Your-RFID-Hacking-Tools-WP-UPDATED.pdf
local copy: DEFCON-23-Craig-Young-How-To-Train-Your-RFID-Hacking-Tools-WP-UPDATED
