| 摘要 |
A temporary encoding device and an authentication system and a method using the encoding device are provided to facilitate a manufacturing process at low cost, and to enable a user to authenticate an authentication server inversely, while separate continuous maintenance of motion for time synchronization or event synchronization with the authentication server is not necessary. A temporary encoding device comprises as follows. A display unit(10) is equipped. An optical data receiving unit inputs an optical signal generated from an optical data transmitter(20), and outputs/processes as an electric signal. A power supply unit(50) supplies power. A processor(90) generates a code by using a value inputted from the optical data receiving unit, and outputs the code through the display unit. |
