DEVICE FOR COLLECTING THE SIDE CHANNEL AND METHOD OF SIDE CHANNEL ANALYSIS SYSTEM HAVING THE DEVICE

摘要

Disclosed is a technology for collecting side channel signals of a contactless device. According to an aspect of the present invention, an apparatus for collecting side channel signals includes: a reader which supplies power to the contactless device placed apart from the reader at a certain distance and transmits a carrier signal; a signal extraction unit which extracts a side channel signal from a signal generated to correspond to the carrier signal in the contactless device which operates by receiving the power; and a signal collection unit which synchronizes the extracted side channel signal with a trigger signal generated by the reader and performs sampling of the side channel signal. The signal extraction unit receives the signal, generated in the contactless device, in a predetermined location according to intensity of the carrier signal received from the reader. The purpose of the present invention is to provide a technology which can minimize the carrier signal and efficiently collect the side channel signal of the contactless device.