Electronic device and method by which electronic device transmits and receives authentication information

This invention describes an electronic device, such as a smartphone, equipped with various wireless communication technologies like Bluetooth, NFC, and a camera. It simplifies the process of connecting to another Bluetooth device by using NFC or the camera to gather authentication details, specifically Out-Of-Band (OOB) data and an identifier. Once these details are acquired, the device uses Bluetooth to establish a connection and can also share some of this information with a different external device, potentially through a server linked to an account.