OTP GENERATION METHOD AND AN APPARATUS THEREOF BY A CLIENT ADDRESS AUTHENTICATION SYSTEM FOR ENHANCING THE SECURITY FROM THE HACKING ATTACK

摘要

PURPOSE: An OTP(One Time Password) generation method and an apparatus thereof by a client address authentication system for enhancing the security from the hacking attack are provided to prevent a hacker from using the OTP on the client of the hacker. CONSTITUTION: A main server(30) generates a seed value used for the OTP production from a user. The main server authenticates an IP address of a client by transmitting an SMS(Short Message Service). An OTP server(40) generates the OTP necessary for user log-in by using the authenticated IP address. The OTP server authenticates the user by using the OTP.