Tunable schemes and evaluation for certificate validity check in vehicle-to-entity communications

Abstract

A method and system is provide for performing a certificate validity check between a vehicle receiving a message and an entity transmitting the message in a vehicle-to-entity communication system. The message includes a digital certificate. A determination is made whether the digital certificate is expired. A determination is made whether the digital certificate is listed in a local certificate revocation list stored in a memory of the vehicle in response to a determination that the digital certificate is not expired, otherwise, disregarding the message. An elapsed time is determined since a last freshness check in response the digital certificate not listed in the local certificate revocation list. The elapsed time is compared to a threshold requirement. The digital message is accepted for additional processing in response to the freshness check meeting the threshold requirement, otherwise, the message is disregarded.