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학술대회 ATHENA: A Pagerank-based Scheme to Solve the Thundering Herd in Authentication
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Chao Chen, 이상우, Tim Watson, Carsten Maple, Yi Lu
Vehicular Networking Conference (VNC) 2018, pp.1-4
18PH2400, 자율(협력)주행 차량간 및 주변환경과 안전한 신뢰 연동을 위한 고속상호인증 및 해킹대응 보안플랫폼 기술 개발, 이상우
Vehicles in intelligent transport systems (ITS) react to an emergency situation by broadcasting critical messages like Decentralized Environmental Notification Messages (DENMs). A digital signature is attached to each message to secure the integrity of communication, and this message is inoperative until the authentication completes. This creates a challenge for vehicles to verify massive messages in some scenarios where it could incur the thundering herd in authentication, if there is a critical situation happening in heavy road traffic. To address this problem, we propose ATHENA, a pagerank-based scheme to solve the thundering herd in ITS authentication that utilises the transmission of messages and pagerank algorithm to rank the broadcasting vehicles. Simulation results show the efficiency of ATHENA and the effectiveness of performance enhancements compared with others.
KSP 제안 키워드
Critical situations, Digital signature, Intelligent Transport Systems(ITS), Pagerank algorithm, Road traffic, emergency situation, simulation results