Fecha de publicación: 05/06/2020 Fuente: Wipo "IOT" The present invention relates to an IoT data brokering method using a blockchain and an exchange server therefor. According to an embodiment of the present invention, the IoT data brokering method using a blockchain comprises the steps of: registering and distributing an executable image for a service platform for brokering IoT data between an IoT node and a cloud node; checking a transaction agreement ID for brokering the IoT data between the IoT node and the cloud node in a blockchain management server to distribute the transaction agreement ID to the IoT node and the cloud node; and performing brokering of the IoT data from the IoT node to the cloud node. As a first brokering service ID to be provided by the IoT node and a second brokering service ID to be received from the cloud node are registered, the blockchain management server transmits and propagates the transaction agreement ID on a blockchain network such that it may be possible to confirm the transaction agreement ID. COPYRIGHT KIPO 2020