摘要 |
Provided is a method of establishing, by an image forming apparatus, a connection to a mobile device, the method including transmitting temporary credential information to the mobile device in response to receiving a pairing request from the mobile device, receiving an encrypted personal identification number (PIN) code from the mobile device, determining whether a PIN code is valid by decrypting the encrypted PIN code using the temporary credential information to extract the PIN code, and transmitting permanent credential information to the mobile device when it is determined that the PIN code is valid. |