| 摘要 |
A method for distributing a certificate revocation list according to the present invention comprises the steps of: generating one or a plurality of multimedia object transfer (MOT) objects including certificate revocation list (CRL) data for vehicle communication which has been received, based on a predetermined policy; encoding the one or the plurality of MOT objects which have been generated; segmenting the one or the plurality of MOT objects, which have been encoded, into a packet size for digital multimedia broadcasting (DMB) multiplexing; and multiplexing the segmented packets and distributing same to a vehicle terminal via a broadcast transmission system. Therefore, the present invention can distribute the CRL data in very short periods regardless of the size of the CRL, can increase the rate of successful CRL reception by enabling CRL retransmission using a data carousel of a MOT protocol of the DMB, and thus can guarantee the reliability of the CRL data which is saved on a communication unit. |
