A method, system, processing circuitry, and computer program product using clothing or human skin as a contact-based communications channel to thwart man-in-the-middle radio channel communications attacks by: sending a radio signal from a first transmitter...

The method for enabling authenticated access of an individual (10) to a security area (12) by means of a transponder (14) carried by the individual which on receiving an interrogation signal outputs an ID code group, and a control unit (18) located in the ...