융합정보논문지 (Journal of Convergence for Information Technology)

중소기업융합학회 (Convergence Society for SMB)
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지능형 차량 교통체계에서 보안 통신 리뷰

Review on Security Communication Environment in Intelligent Vehicle Transport System

  • 홍진근 (백석대학교 정보통신학부)
  • Hong, Jin-Keun (Department of Information Communication, Baekseok University)
  • 투고 : 2017.11.22
  • 심사 : 2017.12.20
  • 발행 : 2017.12.31
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초록

본 논문에서는 연구목적과 관련하여, 협업 지능형교통체계와 자율주행체계에 관심을 가지고 있으며, C-ITS 특성 가운데 핵심 전달 메시지인 CAM과 DENM 특성 분석, 또한 V2X 통신의 보안 특성과 함께 CAM 및 DENM 메시지의 보안 인증서 및 헤더 구조를 중심으로 분석에 초점을 맞추고 있다. 연구방법에 대해, 우리는 CAM 메시지인 차량의 위치와 상태를 알리는 메시지를 분석하고, DENM 메시지인 차량 사고와 같은 이벤트를 알리는 메시지를 분석하고, 이를 지원하는 보안통신 특성을 분석한다. 차량통신에 사용하는 보안헤더와 인증서 형식과 함께, 차량용 서명된 인증서 검증 절차, 그리고 차량용PKI 특성을 얻었다. 아울러, V2X 보안통신을 위해 필요로 하는 보안 동기패턴에 대한 특성과 전송능력에 대해서도 함께 유도할 수 있었다. 그러므로 본 논문은 C-ITS 환경에서 DENM 및 CAM을 전송하는 통신 서비스를 위한 보안 특성을 고려할 때 의미 있는 결과라 할 수 있다.

In this paper, we have interested in cooperative intelligent transport system and autonomous driving system, and focused on analysis of the characteristics of Cooperative Awareness Message (CAM) and Decentralized Environmental Notification Basis Service (DENM) message, which is key delivery message among cooperative intelligent transport system (C-ITS) characteristics for research objectivity. For research method, we also described V2X communication, and also analyzed the security certificate and header structure of CAM and DENM messages. We described CAM message, which is a message informing the position and status of the vehicle. And the DENM message is presented a message informing an event such as a vehicle accident, and analysis security communication, which is supported services. According to standard analysis result, 186 bits or 275 bits are used. In addition to the security header and the certificate format used for vehicle communication, we have gained the certificate verification procedure for vehicles and PKI characteristics for vehicles. Also We derived the characteristics and transmission capability of the security synchronization pattern required for V2X secure communication. Therefore when it is considered for communication service of DENM and CAM in the C-ITS environment, this paper may be meaningful result.

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참고문헌

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