Efficient And Secure Access Control Scheme In The Standard Model For Vehicular Cloud Computing

Effcient and Secure Access Control Scheme in the Standard Model for Vehicular Cloud Computing

Abstract:

Vehicular networking involves the storage, compute and analysis of massive vehicular data. Vehicular cloud computing, as a special cloud computing platform, seamlessly combines VANETs and conventional cloud computing. However, in the vehicular cloud computing, there is still the problem of unauthorized users accessing and stealing data. In the traditional ciphertext-policy attribute-based encryption (CP-ABE) scheme, a trusted central authority is employed to manage attributes and distribute keys. Based on multi-authority CP-ABE (MA-CP-ABE), we propose a secure and revocable access control scheme for vehicular cloud computing, in this project, in which the requester can decrypt the ciphertext with only a small amount of computation. We show our MA-CP-ABE scheme can prevent static corruption of authorities in the standard model under the decisional q-parallel Bili near Dif?e -Hellman Exponent (BDHE) assumption. Theoretical analysis and experimental simulation results show that our scheme has lower communication cost and lower computational complexity than other schemes.