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A Session Key Exchange Scheme for Secure Vehicle Communication in V2I-based VANET Environments  

Ryu, Seung-Ho (숭실대학교 정보통신전자공학부)
Jung, Sou-Hwan (숭실대학교 정보통신전자공학부)
Publication Information
Journal of KIISE:Information Networking / v.35, no.4, 2008 , pp. 311-317 More about this Journal
Abstract
This paper proposes a session key exchange scheme for providing secure communication between Vehicles and Infrastructure in VANET. In the current VANET environment, IEEE 802.11i or PKI based mechanism is used to provide secure communication between V2I. However, since the vehicles and the frequent changes of network topology, VANET nodes have some difficulties to exchange the session key using IEEE 802.11i or PKI method. In the proposed scheme, Local Router is newly defined for exchanging the session key between moving vehicles and infrastructure. A session key is generated by XOR operation based on the random values between Local Router and OBU. As a result, the proposed scheme has a noticeable advantage on the fastness of key exchange by exchanging session keys between LR and OBU.
Keywords
Telematics; V2I Communication; ITS;
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