RSU-Based Distributed Key Management (RDKM) For Secure Vehicular Multicast Communications

Park, Min‐Ho; Gwon, Gi-Poong; Seo, Seung‐Woo; Jeong, Han-You

doi:10.1109/jsac.2011.110313

Cited by 34 publications

(22 citation statements)

References 14 publications

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“…In [10], vehicular communication frameworks based on a group signature are given, where they are based on centralized key management schemes. To reduce the communication and computation overheads, Park et al and Hao et al proposed schemes in [11] and [12], respectively, that delegate the function of the group key management to each RSU. However, there remains the limitation that the vehicles beyond the communication range cannot receive the group key.…”

Section: Key Management In Vehicular Networkmentioning

confidence: 99%

Secure Group Key Transmission Scheme for Vehicles Parked Beyond the Communication Range of Roadside

Park¹

2017

IJCA

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Section: Key Management In Vehicular Networkmentioning

confidence: 99%

Secure Group Key Transmission Scheme for Vehicles Parked Beyond the Communication Range of Roadside

Park¹

2017

IJCA

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“…Because of the high-speed mobility of vehicles in vehicular networks, the legacy GKM schemes, including the LKH and BR schemes, suffer from a critical design problem: the increase in the key management cost, including the communication, computation and storage costs, from the frequent rekeying due to the highspeed mobility of vehicles. This is because the KDC and the RSU suffer from very frequent update of GKs caused by the large number of vehicles in the wide service area and their highspeed mobility [10], [12].…”

Section: Related Workmentioning

confidence: 99%

“…This is because, in vehicular networks, the large number of vehicles in narrow-area communication services and their dynamic mobility make the scalability problem more complex [10], [12]. That is, due to the dynamic mobility of the large number of vehicles, group rekeying frequently happens.…”

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confidence: 99%

“…However, 0018-9545 © 2013 IEEE the TMKM scheme has the limitation that frequent topology change, according to the fast vehicle movement, can cause frequent update of GKs. As an alternative to reducing such frequent GK updates, the RSU-based distributed key management (RDKM) scheme decentralizes the management functions for movement across RSUs and the update of key encryption keys into each RSU, and thus reduces the communication overhead [12]. However, to manage vehicular movement information across RSUs, the RDKM scheme increases the number of leaf nodes in the key tree, which may cause an increase in storage overhead.…”

mentioning

confidence: 99%

“…First, as shown in Fig. 1, while the well-known secure GKM schemes, including those in [10] and [12], update a GK using the root key of a key hierarchy, the proposed SPKM scheme updates a GK by sequentially using leaf nodes of a key hierarchy combined with the service subscription time of a vehicle. Second, in delivering rekeying information from a key distribution center (KDC) to a vehicle, while the well-known secure GKM schemes use multicast communications, the proposed SPKM scheme uses the efficient combination of unicast and multicast communications.…”

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confidence: 99%

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Subscription-Period-Aware Key Management for Secure Vehicular Multicast Communications

Choi

Seo

2013

IEEE Trans. Veh. Technol.

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As many applications based on wireless communications are being embedded on a vehicular platform, multicast communications have begun to be essential for efficient information delivery. Since multicast communications are vulnerable to unauthorized access, group key management (GKM) is expected to play an essential role as access control. However, we note that the legacy GKM schemes are not cost effective and adequate for use in vehicular environments. This is because the dynamic mobility of a large number of vehicles causes a high frequency of group rekeying, which is used to share a new group key (GK) among the authorized group members for every membership change. To overcome the high frequency of group rekeying, we propose a new GKM scheme, which is called subscription-period-aware key management (SPKM), for cost-effective and secure vehicular multicast group rekeying. As a design problem, we analyze its key management cost, including the communication, computation, and storage costs, for multicast group rekeying, and find an optimal condition to minimize the key management cost. Through simulations under different conditions, we show that the proposed SPKM scheme can greatly reduce the communication, computation, and storage complexity in multicast group rekeying from O(log N ) to O(1), where N is the number of vehicles in a single group rekeying process. In addition, we show that the key management cost of the proposed SPKM scheme is lower than those of the well-known GKM schemes for secure vehicular multicast communications.Index Terms-Access control, group key management (GKM), vehicle mobility, vehicular multicast services.

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Versatile lightweight key distribution for big data privacy in vehicular ad hoc networks

Qin

Wang

et al. 2015

Concurrency and Computation

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Vehicular ad hoc networks (VANETs) continually produce large scale of data shared among vehicles nearby to improve driving experience and safety. The vehicular communications contain a large amount of private information. It is well known that group key management is a fundamental cryptographic primitive for providing secure group communication. Although many proposals with regard to group key management have been introduced, they cannot well support secure subgroup and intergroup communications in VANETs. In this paper, we exploit the specific features of vehicular communications and propose two group key distribution schemes providing efficient solutions to these two problems. Our schemes do not require interaction between users. Storage and computation analyses show that compared with existing schemes, our proposals are more efficient and versatile. Based on these basic schemes, we present extensions for multipartite groups, by which the efficiency is greatly improved in this scenario. We also provide the extensions for two-level multipartite groups, which enable fine-grained real-world applications. The experimental results confirm that our group key distribution schemes are practical in security, computation, and communication. ProofBecause all the polynomials are independent, we can discuss the security for just one of them. On the one hand, we consider the key space and the brute-force attacks. For any random integer k 2 R OE0; q 1, by the brute-force attacks, the attacker can guess either the session key k directly or KEY DISTRIBUTION FOR BIG DATA PRIVACY IN VANET r mod q; C 1 D g r mod q and C 2 D RM mod q:

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RSU-Based Distributed Key Management (RDKM) For Secure Vehicular Multicast Communications

Cited by 34 publications

References 14 publications

Secure Group Key Transmission Scheme for Vehicles Parked Beyond the Communication Range of Roadside

Secure Group Key Transmission Scheme for Vehicles Parked Beyond the Communication Range of Roadside

Subscription-Period-Aware Key Management for Secure Vehicular Multicast Communications

Versatile lightweight key distribution for big data privacy in vehicular ad hoc networks

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