Data protection for storage device
AssigneeInternational Business Machines Corporation
InventorMasao Takayama
Life of this patent
Estimating the term…
Abstract
A method for protecting data on a first storage device from unauthorized access is provided. The method includes copying a data map, such as a file allocation table, from the first storage device, on which the data to be protected resides, to a second storage device. A security key is established for the data map. The data map is then deleted from the first storage device, to render unusable the data thereon. The data map is restored to the first storage device upon successful input of the security key.
Claims1
A method for protecting data in a memory unit of a body of a USB storage device, the method comprising:
- copying a data map of the memory unit of the body of the USB storage device, to a memory unit of a cap of the USB storage device;
- establishing a security key for the data map;
- deleting the data map from the memory unit of the body of the USB storage device;
- receiving a request to restore the data map to the memory unit of the body of the USB storage device;
- issuing a security challenge;
- receiving a user response to the security challenge;
- on condition that the user response to the security challenge is a correct response, restoring the data map to the memory unit of the body of the USB storage device;
- and
- on condition that the user response to the security challenge includes a pre-determined number of incorrect responses, deleting the data map from the memory unit of the cap of the USB storage device;
- wherein the data map is a file allocation table.
Dependencies are inferred from the claim text.