Communications of the ACM
Efficient secure aggregation in VANETs
Proceedings of the 3rd international workshop on Vehicular ad hoc networks
Attribute-based encryption for fine-grained access control of encrypted data
Proceedings of the 13th ACM conference on Computer and communications security
Secure attribute-based systems
Proceedings of the 13th ACM conference on Computer and communications security
Trust for Vehicular Applications
ISADS '07 Proceedings of the Eighth International Symposium on Autonomous Decentralized Systems
Ciphertext-Policy Attribute-Based Encryption
SP '07 Proceedings of the 2007 IEEE Symposium on Security and Privacy
Attribute-based encryption with non-monotonic access structures
Proceedings of the 14th ACM conference on Computer and communications security
Provably secure ciphertext policy ABE
Proceedings of the 14th ACM conference on Computer and communications security
Securing vehicular ad hoc networks
Journal of Computer Security - Special Issue on Security of Ad-hoc and Sensor Networks
EUROCRYPT'91 Proceedings of the 10th annual international conference on Theory and application of cryptographic techniques
Multi-authority attribute based encryption
TCC'07 Proceedings of the 4th conference on Theory of cryptography
Predicate encryption supporting disjunctions, polynomial equations, and inner products
EUROCRYPT'08 Proceedings of the theory and applications of cryptographic techniques 27th annual international conference on Advances in cryptology
Fuzzy identity-based encryption
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Improved access control mechanism in vehicular ad hoc networks
ADHOC-NOW'11 Proceedings of the 10th international conference on Ad-hoc, mobile, and wireless networks
Policy Management for Secure Data Access Control in Vehicular Networks
Journal of Network and Systems Management
Attribute-Based encryption with break-glass
WISTP'10 Proceedings of the 4th IFIP WG 11.2 international conference on Information Security Theory and Practices: security and Privacy of Pervasive Systems and Smart Devices
Selective and confidential message exchange in vehicular ad hoc networks
NSS'12 Proceedings of the 6th international conference on Network and System Security
Secure Data Retrieval for Decentralized Disruption-Tolerant Military Networks
IEEE/ACM Transactions on Networking (TON)
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Vehicular ad hoc networks (VANETs) are usually operated among vehicles moving at high speeds, and thus their communication relations can be changed frequently. In such a highly dynamic environment, establishing trust among vehicles is difficult. To solve this problem, we propose a flexible, secure and decentralized attribute based secure key management framework for VANETs. Our solution is based on attribute based encryption (ABE) to construct an attribute based security policy enforcement (ASPE) framework. ASPE considers various road situations as attributes. These attributes are used as encryption keys to secure the transmitted data. ASPE is flexible in that it can dynamically change encryption keys depending on the VANET situations. At the same time, ASPE naturally incorporates data access control policies on the transmitted data. ASPE provides an integrated solution to involve data access control, key management, security policy enforcement, and secure group formation in highly dynamic vehicular communication environments. Our performance evaluations show that ASPE is efficient and it can handle large amount of data encryption/decryption flows in VANETs.