Patent ID: 7584360
Filing Date: 2009-09-01
Classification: H04L,H04W

Abstract:
1. A data sending/receiving device for issuing a digital certificate to a new data sending/receiving device, when the data sending/receiving device causes the new data sending/receiving device to participate in a wireless network formed by a plurality of data sending/receiving devices each having a digital certificate that certifies authority to participate in the wireless network; the data sending/receiving device comprising: a first communication section which performs wireless communication in the wireless network; a second communication section, to which the new data sending/receiving device can be connected by a wired connection means; and a control section which performs a process of issuing the digital certificate for the new data sending/receiving device through the wired connection means; wherein when the new data sending/receiving device is connected to the second communication section, the control section judges whether or not the new data sending/receiving device is a device having a communication means that can communicate in the wireless network, in accordance with device type information of the new data sending/receiving device received via the second communication section from the new data sending/receiving device, and if the new data sending/receiving device is judged as a device having the communication means that can communicate in the wireless network, the control section creates the digital certificate for the new data sending/receiving device by using a device identifier specific to the new data sending/receiving device, the device identifier being received via the second communication section from the new data sending/receiving device through the wired connection means, and sends the created digital certificate via the second communication section to the new data sending/receiving device through the wired connection means.