INTERNET OF THINGS SERVICE ACCESS CONTROL SYSTEM AND METHOD USING SMART CONTRACT BASED ON TANGLE NETWORK

摘要

The present invention relates to a system and method for controlling access to an IoT service using a smart contract based on a Tangle network. The system according to an embodiment of the present invention defines a service for a predetermined resource in a Tangle network and provides the service A service provider that determines whether or not a service provider is connected to a plurality of IoT devices to form one domain and collect resources, and a resource provider that delivers the collected resources to the service provider through a Tangle network and a Tangle network The user device may include a user device using the service by requesting a service for a predetermined resource from the service provider and verifying the access right. At least one of the service provider, resource provider, or user device corresponding to the system node creates a transaction based on a smart contract defined as a policy for access control in the Tangle network, and transmits the generated transaction to each node in the Tangle network. It is stored and shared in the owned distributed ledger, and access control for each node can be performed using tokens issued based on smart contracts.