SECURE DIGITAL SYSTEM USING NEAR FIELD COMMUNICATION, PAIR SYSTEM MAKING A PAIR WITH THE SECURE DIGITAL SYSTEM, AND PROVIDING METHOD THEREOF

摘要

An NFC security digital system, a pair system, and a providing method thereof are disclosed. The security digital system comprises: a display device; a communication module for performing near field communication (NFC) with a pair system storing at least one among a security code and OTP information; and a control module for receiving at least a part of the security code, at least a part of the OTP information, or OTP based on the OTP information from the pair system by the communication module if the communication module communicates with the pair module by tagging at least once. The control module displays at least a part of the received or generated security code or the OTP on the display device, automatically inputs at least a part of the received or generated security code or the OTP to an input UI displayed in the security digital system, or transmits at least a part of the received or generated security code or the OTP to an authentication system. The authentication system which authenticates at least a part of the security code or the OTP stores user identification information or device identification of the security digital system. If the security digital system performing NFC communication with the pair system corresponds to the user identification information or device identification information stored in the authentication system, the authentication is approved. [Reference numerals] (AA) Start; (BB) End; (S100) Generate a probe request frame including signal strength information; (S110) Transmit the probe request frame to an access point; (S120) Receive a probe response frame from the access point; (S130) Access the access point