TY - JOUR
T1 - A scalable and distributed architecture for secure and privacy-preserving authentication and message dissemination in VANETs
AU - Moni, Shafika Showkat
AU - Manivannan, D.
N1 - Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2021/3
Y1 - 2021/3
N2 - With significant advances in the development of autonomous cars and Internet of Things (IoT) in recent years, Vehicular Ad-hoc NETworks (VANETs) have become a promising technology for Intelligent Transportation Systems (ITS) as well. However, the wireless nature of VANET communication makes it vulnerable to a plethora of attack vectors to otherwise secure vehicles. Authenticated message dissemination plays a key role to avert such security vulnerabilities. Many of the existing Public Key Infrastructure (PKI) based schemes use Certificates for authentication. In such schemes, for authenticating an entity which presents its certificate, Certificate Revocation List (CRL) is used to check if the entity's certificate has been revoked. But, as the size of the CRL grows, using CRL for authentication can incur computation and storage overhead in VANETs. To overcome this limitation of CRL-based approach for authentication, in this paper, we propose a distributed, scalable, low-overhead, privacy-preserving authentication scheme for VANETs. The proposed scheme uses a Merkle Hash Tree (MHT) for authenticating Road Side Units (RSUs) and Modified Merkle Patricia Trie (MMPT) for authenticating vehicles. We also present an informal analysis as well as formal correctness proof of the proposed scheme.
AB - With significant advances in the development of autonomous cars and Internet of Things (IoT) in recent years, Vehicular Ad-hoc NETworks (VANETs) have become a promising technology for Intelligent Transportation Systems (ITS) as well. However, the wireless nature of VANET communication makes it vulnerable to a plethora of attack vectors to otherwise secure vehicles. Authenticated message dissemination plays a key role to avert such security vulnerabilities. Many of the existing Public Key Infrastructure (PKI) based schemes use Certificates for authentication. In such schemes, for authenticating an entity which presents its certificate, Certificate Revocation List (CRL) is used to check if the entity's certificate has been revoked. But, as the size of the CRL grows, using CRL for authentication can incur computation and storage overhead in VANETs. To overcome this limitation of CRL-based approach for authentication, in this paper, we propose a distributed, scalable, low-overhead, privacy-preserving authentication scheme for VANETs. The proposed scheme uses a Merkle Hash Tree (MHT) for authenticating Road Side Units (RSUs) and Modified Merkle Patricia Trie (MMPT) for authenticating vehicles. We also present an informal analysis as well as formal correctness proof of the proposed scheme.
KW - Authentication
KW - Privacy
KW - Security
KW - VANETs
UR - http://www.scopus.com/inward/record.url?scp=85114838553&partnerID=8YFLogxK
U2 - 10.1016/j.iot.2020.100350
DO - 10.1016/j.iot.2020.100350
M3 - Article
AN - SCOPUS:85114838553
SN - 2542-6605
VL - 13
JO - Internet of Things (Netherlands)
JF - Internet of Things (Netherlands)
M1 - 100350
ER -