METHOD AND SYSTEM FOR DISTRIBUTING CERTIFICATE REVOCATION LIST FOR VEHICLE COMMUNICATION, APPARATUS FOR ACQUIRING CERTIFICATE REVOCATION LIST THEREOF

摘要

The invention Multimedia Object Transfer terrestrial multimedia broadcasting (T-DMB), (multimedia object transfer: MOT ) by using the protocol on the certificate revocation list acquiring device for revocation list distribution method and system and to distribute them to the appropriate vehicle communication and acquire the certificate revocation lists that are used in vehicle communication, for this purpose, according to the present invention, road Unlike the aforementioned prior art methods for distributing the certificate revocation list of the vehicle by using a peripheral device or a peripheral vehicle, multimedia objects in the certificate revocation lists in the vehicle communication (CRL) for terrestrial DMB (T-DMB) is transmitted from the distribution device Transfer (MOT) protocol is applied to transform the CRL data for transmission over a broadcast channel as the vehicle terminal, and the converted data to the CRL vehicle terminal via a broadcasting repeater (base station) and inserted into the T-DMB data broadcasting channel By deploying (wireless transmission), the broadcast terminal is mounted on the vehicle can acquire the CRL of the vehicle in real-time communication. In addition, the present invention may be deployed in a very short period of the CRL DMB data communication, regardless of the vehicle's CRL size (volume) because they use a data service having a sufficient bandwidth, the data carousel of the MOT protocol of the T-DMB using (carousel) can increase the success rate of the received CRL vehicle in poor communication environment by enabling the CRL retransmission (re-transmission), is capable of ensuring the reliability of the CRL is stored in the vehicle data communication apparatus through which. ;