SYSTEM AND METHOD FOR USER AUTHENTICATION USING ONE-TIME IDENTIFICATION

摘要

A system for user authentication using OTIDs (one-time identifications), includes a client terminal configured to generate n number of OTIDs which is used in the user authentication, and sequentially select one of the generated n number of OTIDs to use the selected OTID as a user identification in each authentification session. Further, the system includes an authentication server configured to receive the generated n number of OTIDs from the client terminal to store same, when the one OTID selected from the n number of OTID and a secret key are transmitted, inquire the OTID in a DB (database), and determine whether a secret key which is associated with the inquired OTID and stored in the DB and the received secret key is matched to performing the user authentication.