Patent ID: 8281144
Filing Date: 2012-10-02
Classification: H04L

Abstract:
1. An ownership sharing method of a home network remote controller, the method comprising: transmitting, to a main remote controller, a request to share in control of a first device that is controlled by the main remote controller; receiving, from the main remote controller, permission to share in the control of the first device including an ownership authentication key generated by the main remote controller by hashing a secret key shared between the main remote controller and the first device; transmitting the ownership authentication key directly to the first device; and in response to the first device verifying the authenticity of the transmitted ownership authentication key, receiving the requested service directly from the first device, wherein the ownership authentication key is used for authentication of the main remote controller and of the home network remote controller, the transmitting of the ownership authentication key to the first device comprises receiving a random number from the first device to challenge a qualified user, and transmitting a first confirmation key, acquired by putting the ownership authentication key and the random number into a hash function, to the first device, and the first device generates the ownership authentication key using the ID of the home network remote controller and a secret key shared with the main remote controller, acquires a second confirmation key by putting the ownership authentication key and the random number into the hash function, and if the first confirmation key and the second confirmation key are the same, the first device provides the home network remote controller with the service and the ability to manage the first device.