公开(公告)号：US11671257B2

公开(公告)日：2023-06-06

申请号：US17352897

申请日：2021-06-21

Applicant: DENSO CORPORATION

Inventor： Haolun Huang ,  Tatsuya Okabe ,  Himank Gupta

IPC: H04L9/32 ,  H04L9/08 ,  H04L9/06 ,  H04L67/12 ,  H04L9/00

CPC classification number: H04L9/3218 ,  H04L9/0643 ,  H04L9/0825 ,  H04L9/0869 ,  H04L67/12 ,  H04L9/50 ,  H04L2209/84

Abstract: A mobility data storage method executed by a plurality of vehicles each including a sensor and a processor coupled to the sensor, the processor of each of the plurality of vehicles being configured to store a local blockchain, the method includes, with the processor of the plurality of vehicles, attaching a sensor data pool, a random value that excess a threshold, and a verifiable random function (VRF) proof to a respective candidate block then broadcasting the candidate block to all other vehicles. Then, a particular candidate block whose random value is largest among the broadcasted candidate blocks is selected and verified with the VRF proof prior to be attached to the local blockchain.