| 摘要 |
<p>The invention provides a USB storage device and an access control method thereof. An access control module is provided on the USB storage device. The storage space is divided into at least one data storage entity. Each user's access right to each data storage entity is set and stored in the USB storage device as an access control list. The process between the USB storage device's being connected with a USB host and its being disconnected from the USB host is one session. When a session is established, the user provides authentication information for the USB device to authenticate him/her, and saves the user information used in the current session. In the current session, when the host of the user issues an access request for the data storage entity on the USB storage device, the access control module queries the access right list based on the user information in the current session to determine whether the user has an access right to the requested data storage entity. When the user does not have the access right to the data storage entity, the access control module denies the user's access request for the data storage entity.</p> |
