RSA System of strengthening vehicle security for defending relay station attack and method thereof

摘要

The present invention discloses a vehicle security enhancement system and method for RSA defense. That is, in the present invention, when a trigger is input, a wakeup signal is transmitted from a plurality of antennas in the vehicle, and the key fob that receives the wakeup signal generates a variable value using the OTP code and the coordinates of the key fob, and the key in the vehicle The location of the key fob is estimated by analyzing the direction of the RF signal, which is a response signal to the wake-up signal transmitted from the fob, and other variable values are calculated using the variable value transmitted from the key fob in the vehicle and the OTP code of the vehicle. If the difference between the calculated other variable values and the estimated position of the key fob is within the error range and the distance between the vehicle and the expected position of the key fob is within the normal operating distance of the PEPS system, the vehicle control function is performed through the corresponding key fob. , it is possible to strengthen the defense capability against RSA.