우리는 미국의 범지구위성항법시스템인 GPS (Global Positioning System)으로부터 위치 및 시간 정보를 수신하여 네비게이션 등에서 사용하고 있다. 현재 GPS를 포함한 GNSS에 대한 다양한 공격이 꾸준히 발생하고 있으며점차 증가할 것으로 예상되고 있다. 유럽의 Galileo와 미국의 GPS 등은 민간신호의 인증 서비스를 추진하고 있으며 다른 위성항법 시스템에 대해서도 연구가 이루어지고 있다. 따라서 우리나라에서 추진하고 있는 독자적인 차세대 위성항법시스템인 KPS (Korea Positioning System)에 대해서도 민간 신호의 보호 방안이 요구된다. 본 논문에서는 KPS에 적용될 수 있는 민간용 위성항법 데이터의 인증 방안을 제시한다.
KSP Keywords
Global positioning system(GPS)
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