期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
卷号：3
期号：4
页码：10955
出版社：S&S Publications
摘要：Secure Authentication in VANNET is deploying by Public Key Infrastructure (PKI), and to use CertificateRevocation Lists (CRLs) for managing the revoked certificates. In PKI, each entity in the network holds an authenticcertificate, and every message should be digitally signed before its transmission. A CRL, usually issued by a TrustedAuthority (TA), contains the list of revoked certificates. In a PKI system, the authentication of any message isperformed by first checking in the CRL. The user in the CRL list can be maintained by OBU and the certificate list canbe huge. So, checking for the authentication can be performed by using linear search or some other searches inoptimized way. In the proposed system, Message Authentication Protocol (MAP) can be used for authenticationpurposes here to check the revocation list based on Keyed Hash Message Authentication code generated by MAP. TheOBU units can maintain the secret keys and it can be communicate with RSU for update the secret keys. The checkingauthentication shares the secret code only between the non-revoked lists in the On Board Units (OBU) and also updatesthe secret key. MAP can be reducing the time delay for checking the message verification.MAP method for revocationprocess uses the keyed Hash Message Authentication Code(HMAC).Such Calculation for HMAC helps in sharemessage between the non-revoked On-Board Units (OBUs).MAP can significantly decrease the message loss ratio. Asper the security analysis and performance evaluation, MAP is demonstrated to be secure and efficient. The RSU canconvert the revoked vehicle to non revoked vehicle. It is faster than the TA verification. The non revocation process isdone by the road side unit and the batch verification is also used for verify the message.
关键词：Certificate Revocation List; On Board Unit; Trusted Authority; HMAC; RSU
