TY  - JOUR
T1  - Authentication Scheme for Satellite Navigation Message and Precision Correction Message
AU  - Cho, Taenam 
AU  - Yong, Seunglim 
AU  - Jung, Wonchan 
AU  - Lee, Sanguk 
AU  - Gyu, Ryu Joon 
JO  - The Journal of Korean Institute of Communications and Information Sciences
PY  - 2022
DA  - 2022/1/15
DO  - 10.7840/kics.2022.47.5.731
KW  - 위성항법시스템
KW  - 정밀보정 서비스
KW  - 메시지 인증
KW  - 보안
KW  - GNSS
KW  - KPS
KW  - Precision Correction Service
KW  - Message Authentication
KW  - Security
AB  - We receive location and time information from the GPS, the US global satellite navigation system, and use it for navigation, but it has an error of several tens of meters. When precise location information is required, such as in aviation or autonomous driving, precision reinforcement services are required to correct errors, so services with high accuracy are being prepared overseas. Spoofing attacks on these satellite navigation messages can cause social and economic chaos and damage by disturbing the positions of air and ships. Since attacks on GNSS, which have become increasingly diversified and sophisticated, can be more lethal in the precision correction service, research on satellite message authentication is needed. Since the authentication method inevitably varies depending on the characteristics of each GNSS transmission speed or message structure, etc., research on GNSS authentication is being conducted in each country. In this paper, we propose authentication methods for civilian satellite navigation data and precision reinforcement messages that can be applied to the KPS, which is being promoted in Korea.