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Sensors 2018, 18(2), 666; https://doi.org/10.3390/s18020666

SmartVeh: Secure and Efficient Message Access Control and Authentication for Vehicular Cloud Computing

1
School of Cyberspace Security, Beijing University of Posts and Telecommunications, Beijing 100876, China
2
School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
*
Author to whom correspondence should be addressed.
Received: 2 January 2018 / Revised: 4 February 2018 / Accepted: 15 February 2018 / Published: 24 February 2018
(This article belongs to the Special Issue Security, Trust and Privacy for Sensor Networks)
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Abstract

With the growing number of vehicles and popularity of various services in vehicular cloud computing (VCC), message exchanging among vehicles under traffic conditions and in emergency situations is one of the most pressing demands, and has attracted significant attention. However, it is an important challenge to authenticate the legitimate sources of broadcast messages and achieve fine-grained message access control. In this work, we propose SmartVeh, a secure and efficient message access control and authentication scheme in VCC. A hierarchical, attribute-based encryption technique is utilized to achieve fine-grained and flexible message sharing, which ensures that vehicles whose persistent or dynamic attributes satisfy the access policies can access the broadcast message with equipped on-board units (OBUs). Message authentication is enforced by integrating an attribute-based signature, which achieves message authentication and maintains the anonymity of the vehicles. In order to reduce the computations of the OBUs in the vehicles, we outsource the heavy computations of encryption, decryption and signing to a cloud server and road-side units. The theoretical analysis and simulation results reveal that our secure and efficient scheme is suitable for VCC. View Full-Text
Keywords: vehicular cloud computing; message access control; attribute-based encryption; message authentication; attribute-based signature vehicular cloud computing; message access control; attribute-based encryption; message authentication; attribute-based signature
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Huang, Q.; Yang, Y.; Shi, Y. SmartVeh: Secure and Efficient Message Access Control and Authentication for Vehicular Cloud Computing. Sensors 2018, 18, 666.

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