ELECTRONIC DEVICE FOR PERFORMING ENCRYPTED COMMUNICATION, AND OPERATION METHOD THEREOF

Electronic devices are disclosed, including a first and second device. The first device includes a communication circuit, and a processor. The processor is configured to receive a first signal from the second device, identify a present mode of the second device, based on the received first signal, establish a communicative connection with the second device, based on identifying that the second device is operating in a first mode, in response to establishing the connection, generate first information for inclusion in a second signal to be periodically transmitted from the second device which transitions to a second mode, and second information for encrypting communications with the second device, and transmit the first information and the second information to the second device, and a second device different from the second device.