Device managment system, device managment method. information processing device, device, and program

摘要

A distributed ledger registers manufacturing process information, activation information or information about updates to a device, such as an Internet of things (IoT) device. The distributed ledger may be a blockchain such as Ethereum (RTM) or a directed acyclic graph (DAG) such as a tangle. Manufacturing information may include a device ID, component ID, manufacturing line ID and manufacturing time information indicating when a component was inserted into the device. Activation or updating information may include a device ID, verification time information indicating when the device was activated or updated, a hash value of a file used to activate or update the device, and the device’s digital signature. The manufacturing, activation or update information may be registered in the distributed ledger during the manufacturing, activation or update process, respectively. Update information may also be registered in the distributed ledger at predetermined times. Storing device information in a distributed ledger prevents falsification of the information and allows anyone to check its trustworthiness. For example, the device may be a camera 1606-1608 in a human tracking system 1600. A distributed ledger 1602 records information about the camera’s manufacture, activation or updates to provide an evidentiary record of the camera’s reliability.