| 摘要 |
The present invention provides an authentication code generation system and an authentication code generation method which are capable of reinforcing the security of an OTP authentication method using a mobile phone by improving the limit of the OTP generation and authentication method using a mobile phone. In an authentication code generation system of the present invention, an information providing device provides authentication information and security key information related to a predetermined user to a predetermined terminal, and in the predetermined terminal device having a first operation unit and a second operation unit for performing an authentication generation function in different memory regions, the first operation unit requests generation of an authentication code by providing first information which encrypts input information inputted by a user, in the predetermined terminal device the second operation unit generates an authentication code according to the request only when second information encrypted using the prestored authentication information and the security key information and the first information are the same. [Reference numerals] (100) Terminal device; (200) Information providing device |
