privacy enhanced authentication scheme for Internet of Vehicles using blockchain in omnet++

During communication either with the V2V or V2I (V2Road Side Unit) security and
privacy are crucial issues that need to be tackled efficiently. Therefore, it must be well protected
from possible attacks. The design of several layers of protection according to the principle of rings
of defense can contribute to improve the protection of the system. The general design of the
security system is depicted in fig. 3, where blocks in green are part of the blockchain (BC). These
blocks include the RSUs, RSU-Gateway (RSUG), certificate authority, data integrity, and Trusted
Authority (TA) database. Every vehicle has a private username and a pair of public-private key.
The asymmetrical public key (PK) is used for the first time joining of the vehicle to the IoV
network. PK is known by its capability to ensure both secrecy and authentication, but at the cost
of higher encryption-decryption delay. The acceptance of introduced delay is justified by the onetime
use at the car joining only. After joining the IoV, the vehicle will periodically or by request
need to be re-authenticated but using credential procedure proposed by the system.
The design of the security system for IoV is based mainly on the inter-system communication. According to the deep accomplished literature review, the authentication must consider two points, which are delay-free, and re-authentication to protect continuously the system from intruders within the acceptable delay.