US 12,341,911 B2
Certificate revocation list updating method and related device
Kai Pan, Shanghai (CN); Jing Chen, Shanghai (CN); and Xiaojun Wang, Shanghai (CN)
Assigned to SHENZHEN YINWANG INTELLIGENT TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Shenzhen Yinwang Intelligent Technologies Co., Ltd., Shenzhen (CN)
Filed on Jun. 2, 2022, as Appl. No. 17/831,136.
Application 17/831,136 is a continuation of application No. PCT/CN2020/113299, filed on Sep. 3, 2020.
Claims priority of application No. 201911240387.7 (CN), filed on Dec. 6, 2019.
Prior Publication US 2022/0294649 A1, Sep. 15, 2022
Int. Cl. H04L 9/32 (2006.01); H04L 9/08 (2006.01); H04L 9/40 (2022.01)
CPC H04L 9/3268 (2013.01) [H04L 9/0891 (2013.01); H04L 63/0823 (2013.01); H04L 2209/80 (2013.01); H04L 2209/84 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An on board unit (OBU), comprising:
at least one processor; and
one or more memories coupled to the at least one processor and storing program instructions that when executed by the at least one processor cause the OBU to be configured to:
receive a first notification message from a first road side unit (RSU), wherein the first notification message comprises a first certificate revocation list, and wherein the first notification message instructs the OBU to update a currently stored certificate revocation list within a coverage area of the first RSU;
send a confirmation request to a certificate server, wherein the confirmation request requests confirmation from the certificate server whether a certificate used by the OBU within the coverage area of the first RSU is revoked;
receive a response message from the certificate server in response to the confirmation request; and
update the currently stored certificate revocation list to the first certificate revocation list in response to the first notification message.