Multi-security authentication system and method between blockchain-based mobile terminals and IoT devices

摘要

The present invention provides a blockchain-based mobile terminal and IoT device capable of authenticating the legitimacy of the user terminal based on the block chain and preventing hacking related to the IoT remote control when attempting to remotely control the IoT device through the user terminal. It relates to a multi-security authentication system and method between the A multi-security authentication system and method between a blockchain-based mobile terminal and an IoT device according to the present invention includes an IoT device; a user terminal remotely controlling the operation of the IoT device; and an authentication server that approves the IoT device control of the user terminal. The authentication server of the present invention includes a first function of recording registration hash value related information in a block chain; a second function of receiving an authentication hash value generated by the user terminal when receiving a request for control approval of the IoT device, and determining the validity of the authentication hash value by using the registered hash value-related information recorded in the block chain; and a third function of authorizing the user terminal to control the IoT device when the authentication hash value is justified as a result of the determination. The registered hash value related information of the present invention is information about a first hash, information about a second hash, or information about a hash in which the first hash and the second hash are mixed (hereinafter, mixed hash).