INTERNET OF THING DEVICE SERVER FOR SECURITY OF THE INTERNET OF THING DEVICE AND METHOD FOR SECURITY OF THE INTERNET OF THING DEVICE

摘要

The method for security of an IoT device of the present invention comprises the steps of: transmitting, by a server, a key value determined according to a trust level of a user device and a key ID of the key value to the user device; Encrypting, by the user device, a command indicating a service requested by the user using the key value, and transmitting the encrypted command and the key ID to an IoT device; And extracting the key value corresponding to the key ID received from the user device from the key list information stored in advance by the IoT device, decrypting the encrypted command using the extracted key value, and decrypting the encrypted command. Executing the command, generating information requested by the user, encrypting the generated information using the extracted key value, and transmitting the encrypted information to the user device.