Skip lists: a probabilistic alternative to balanced trees
Communications of the ACM
One-way accumulators: a decentralized alternative to digital signatures
EUROCRYPT '93 Workshop on the theory and application of cryptographic techniques on Advances in cryptology
CRYPTO '89 Proceedings of the 9th Annual International Cryptology Conference on Advances in Cryptology
The security of vehicular ad hoc networks
Proceedings of the 3rd ACM workshop on Security of ad hoc and sensor networks
Design and analysis of a lightweight certificate revocation mechanism for VANET
Proceedings of the sixth ACM international workshop on VehiculAr InterNETworking
Certificate revocation and certificate update
IEEE Journal on Selected Areas in Communications
Version of the new SHA standard applied to manage certificate revocation in VANETs
IWANN'13 Proceedings of the 12th international conference on Artificial Neural Networks: advances in computational intelligence - Volume Part I
BECSI: Bandwidth efficient certificate status information distribution mechanism for VANETs
Mobile Information Systems
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Vehicular Ad Hoc Networks (VANETs) require some mechanism to authenticate messages, identify valid vehicles, and remove misbehaving ones. A Public Key Infrastructure (PKI) can provide this functionality using digital certificates, but needs an efficient mechanism to revoked misbehaving/compromised vehicles. The IEEE 1609.2 standard states that VANETs will rely on the use of certificate revocation lists (CRLs) to achieve revocation. However, despite their simplicity, CRLs present two major disadvantages that are highlighted in a vehicular network: CRL size and CRL request implosion. In this paper, we point out the problems when using CRLs in this type of networks. To palliate these issues, we propose the use of Authenticated Data Structures (ADS) that allow distributing efficiently revocation data. By using ADS, network entities can check the status of a certificate decreasing the peak bandwidth load in the distribution points.