한국전자통신학회논문지 (The Journal of the Korea institute of electronic communication sciences)

한국전자통신학회 (Korea Institute of Electronic Communication Science)
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무선망에서의 신호도청에 대응하는 데이터 경로 은닉에 관한 연구

On Concealing Data-Path Against Eavesdropping in Wireless Networks

  • 차영환 (상지대학교 컴퓨터공학과)
  • 투고 : 2020.04.07
  • 심사 : 2020.06.15
  • 발행 : 2020.06.30
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초록

무선망에서 통신 경로상의 노드들은 데이터 전달 시마다 전자기적 신호를 방출하므로 일련의 발생 신호들을 포착하여 분석하면 해당 경로가 노출 및 탐지될 수 있다. 악의적 도청자에 대응하는 방법의 하나로는 특정 노드들로 하여금 더미(거짓) 패킷을 생성하도록 하여 마치 데이터 경로상의 노드들처럼 보이도록 하는 것이다. 이 논문에서는 근원지와 도착지 간에 최단 경로를 한 번에 설정하면서 더미 패킷의 과도한 생성을 억제하는 패킷 전송 프로토콜을 제안한다. 시뮬레이션을 통해 통신 경로상의 노드 위치 기밀 수준을 검증한다.

Nodes on a data communication path in a wireless network emit electro-magnetic waves whenever they transmit packets; thus, the path can be exposed and identified with capturing and analyzing a sequence of the signals emitted there. One of countermeasures against a malicious eavesdropper is to let certain nodes mimic the nodes on the data path in sending dummy packets. In this paper we propose a packet transfer protocol which establishes the shortest path between source-destination pair a time and restricts heavy generation of dummy packets. We verify the location-privacy of a node on the communication paths through simulation.

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참고문헌

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