SYSTEM AND METHOD FOR AUTHENTIFICATING BASED ONE TIME PASSWORD

摘要

Disclosed are a system and a method for one-time password (OTP)-based authentication. An OTP-based authentication system according to an embodiment of the present invention includes: a transmitting/receiving module for receiving an authentication request from a client and transmitting an authentication result according to the authentication request to the client; an authentication accumulating and managing module for providing authentication success statistics information of the client by time period within a preset valid time range; an OTP generation module for generating a server-side OTP by using the time information obtained from prestored authentication information and the authentication success statistics information; and an authentication module for authenticating the client by comparing a client-side OTP included in the authentication request with the server-side OTP.