Visible to the public Scalable and privacy-preserving authentication protocol for secure vehicular communications

TitleScalable and privacy-preserving authentication protocol for secure vehicular communications
Publication TypeConference Paper
Year of Publication2016
AuthorsTangade, S., Manvi, S. S.
Conference Name2016 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS)
Date Publishednov
Keywordsasymmetric cryptography, authentication, cryptographic protocols, cryptography, efficient, ESPA protocol, message authentication, PKI, PKI-based authentication protocols, privacy, privacy-preserving authentication protocol, Protocols, pubcrawl, public key cryptography, public-key infrastructure, Safety, Scalability, scalable and privacy-preserving authentication protocol, Scalable Security, security, symmetric cryptography, symmetric hash message authentication code, V2I, V2V, VANET, VANETs, vehicle to infrastructure communications, vehicle to vehicle communications, vehicular ad hoc networks, vehicular communications security

Most of the existing authentication protocols are based on either asymmetric cryptography like public-key infrastructure (PKI) or symmetric cryptography. The PKI-based authentication protocols are strongly recommended for solving security issues in VANETs. However, they have following shortcomings: (1) lengthy certificates lead to transmission and computation overheads, and (2) lack of privacy-preservation due to revealing of vehicle identity, communicated in broadcasting safety-message. Symmetric cryptography based protocols are faster because of a single secret key and simplicity; however, it does not ensure non-repudiation. In this paper, we present an Efficient, Scalable and Privacy-preserving Authentication (ESPA) protocol for secure vehicular ad hoc networks (VANETs). The protocol employs hybrid cryptography. In ESPA, the asymmetric PKI based pre-authentication and the symmetric hash message authentication code (HMAC) based authentication are adopted during vehicle to infrastructure (V2I) and vehicle to vehicle (V2V) communications, respectively. Extensive simulations are conducted to validate proposed ESPA protocol and compared with the existing work based on PKI and HMAC. The performance analysis showed that ESPA is more efficient, scalable and privacy-preserving secured protocol than the existing work.

Citation Keytangade_scalable_2016