PPREM: Privacy Preserving REvocation Mechanism for Vehicular Ad Hoc Networks
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One of the critical security issues of Vehicular Ad Hoc Networks (VANETs) is the revocation of misbehaving vehicles. While essential, revocation checking can leak potentially sensitive information. Road Side Units (RSUs) receiving the certificate status queries could infer the identity of the vehicles posing the query. An important loss of privacy results from the RSUs ability to tie the checking vehicle with the query's target. We propose a Privacy Preserving Revocation mechanism (PPREM) based on a universal one-way accumulator. PPREM provides explicit, concise, authenticated and unforgeable information about the revocation status of each certificate while preserving the users' privacy.
CitationGañán, C. [et al.]. PPREM: Privacy Preserving REvocation Mechanism for Vehicular Ad Hoc Networks. "Computer Standards & Interfaces", 01 Març 2014, vol. 36, núm. 3, p. 513-523.
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