Design and Analysis of Authentication Protocols in Vehicular ad-hoc Networks

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Kazemi Dizaj, Mitra | 2018

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 51419 (05)
University: Sharif University of Technology
Department: Electrical Engineering
Advisor(s): Salmasizadeh, Mahmoud; Mohajeri, Javad
Abstract:
Design of anonymous authentication scheme is one of the most important challenges in Vehicular Ad hoc Networks (VANET). Most of the existing schemes have high computational and communication overhead and they do not meet security requirements. Recently, Azees et al. have introduced an Efficient Anonymous Authentication with Conditional Privacy-Preserving (EAAP) scheme for VANET and claimed that it is secure. We show that this protocol is vulnerable against replay attack, impersonation attack and message modification attack. Also, we show that the messages sent by a vehicle are linkable. Therefore, an adversary can easily track the vehicles. In addition, it is shown that vehicles face with some problems when they enter in a new Trusted Authority (TA) range. Then we introduce a novel TPD based authentication scheme for VANET. Our novel scheme uses symmetric key cryptography and does not use pairing operation. Therefore, our proposed scheme achieves considerably low computation load compared to related works and meets security requirements. Performance evaluation and comparison results of the computational complexity show the efficiency of our scheme
Keywords:
Vehicular Ad Hoc Network (VANET) ; Authentication ; Privacy Preserving ; Replay Attack

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