Paper Title
Minimal Delay Message Authentication Framework For Vanet
Abstract
Abstract: In vehicular Adhoc networks, moving vehicles are enabled to communicate with each other. VANETs usually
face message authentication delay due to revocation checking process as each OBU( On Board Unit) check the revocation
status of all the received certificates in a timely manner by checking the CRL( Certificate Revocation List) for each received
certificate. In this paper we have implemented and enhanced expedite message authentication protocol (EMAP), an efficient
revocation checking process using a fast and secure HMAC function and novel key sharing scheme employing probabilistic
random key distribution which allows an OBU to update its compromised keys even if it previously missed some revocation
messages. This reduces the message authentication delay and the work load of Trusted Authority (TA). A privacy
preserving algorithm for V2I (Vehicle to Infrastructure) is also proposed in which message can be sent using pseudo identity
and this identity can be verified by the RSU (Road State Unit). The revocation process and privacy preserving is simple and
efficient and it makes the VANET working fast and the OBUs in the V2I infrastructure secure.