| 摘要 |
PURPOSE: A method for reinforcing security of login authentication and a system thereof are provided to add a mobile terminal identification number to an image object. CONSTITUTION: A user authentication server(301) receives user identification information from a client terminal(101). The user authentication server generates a first image object. The user authentication server transmits the first image object to the client terminal. The user authentication server receives a second image object from a mobile terminal. The user authentication server processes login request approval of the client terminal.
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