| 摘要 |
<p>PURPOSE: A security for detaching or attaching to a portable terminal, access control apparatus, and finance transaction method using the same are provided to prevent a portable terminal to leaking an authentication certificate by including a chip which includes a security module. CONSTITUTION: An encryption module(12) encrypts data transmitted from a mobile terminal(200) and is attached and detached from the mobile terminal. An authentication module(13) authenticates a user when the authentication module connects to an external server. A security module(11) executes a security function which controls the access of the external device or malignant codes. The authentication module includes an OTP(One-Time Password) creation apparatus.</p> |
