Structure for re-arranging file allocation index by memory block

• US 20070088770A1
• Filed: 10/14/2005
• Published: 04/19/2007
• Est. Priority Date: 10/14/2005
• Status: Abandoned Application

• Current Assignee: GIGA-BYTE Communications, Inc. (Giga-Byte Technology Co.), Gigabyte Technology Company Limited (Giga-Byte Technology Co.)
• Original Assignee: GIGA-BYTE Communications, Inc. (Giga-Byte Technology Co.), Gigabyte Technology Company Limited (Giga-Byte Technology Co.)
• Inventors: Chiang, Ming-Tsung
• Application Number:
  US11/249,394
• Publication Number:
  US 20070088770A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 21/6227 where protection concerns the structure of data, e.g. records, types, queries

Abstract

A structure for re-arranging file allocation index by a memory block, which comprises: at least one retained sector; a double file allocation table, for encrypting each file allocation table entry and a corresponding cluster with an encryption method, and hiding the encrypted index file into a reserved item; a root, for emptying a file entry records; a data area, for storing the file entry records, the file allocation table entry, and the corresponding cluster according to a storage path of the index file; and a master boot sector, for storing an encryption record of the encryption method.

Claims

1. A structure for re-arranging file allocation index by a memory block, comprising:

at least one retained sector;

a double file allocation table, storing damaged FAT entries and corresponding clusters wherein each of original FAT entries and corresponding clusters of the double file allocation table are encrypted and an encrypted index file is hidden into a reserved item;

a root for emptying file entry records;

a data area, storing the file entry records, the FAT entries, and the corresponding clusters, according to a storage path of the index file; and

a master boot sector, storing an encryption record of the encryption method.

2. The structure for re-arranging file allocation index by a memory block according to claim 1, further comprising a secondary boot sector.

3. The structure for re-arranging file allocation index by a memory block according to claim 1, wherein the double file allocation table comprises a first file allocation table and a second file allocation table.

4. The structure for re-arranging file allocation index by a memory block according to claim 1, wherein it is useful for a hard disk or a plug-and-play storage device.

5. The structure for re-arranging file allocation index by a memory block according to claim 1, wherein the secret key for the encryption method is a machine code.

6. The structure for re-arranging file allocation index by a memory block according to claim 1, wherein the secret key for the encryption method is a SIM card.

7. A structure for re-arranging file allocation index by a memory block, comprising:

at least one retained sector;

a double file allocation table, storing damaged FAT entries and corresponding clusters wherein each of original FAT entries and corresponding clusters of the double file allocation table are encrypted with a first encryption method and an encrypted index file is hidden into a reserved item;

a root for emptying a file entry records;

a data area, storing the file entry records, the FAT entries, and the corresponding cluster with a second encryption method, according to a storage path of the index file; and

a master boot sector, storing a first encryption record of the first encryption method and a second encryption record of the second encryption method.

8. The structure for re-arranging file allocation index by a memory block according to claim 7, wherein it further comprising a secondary boot sector.

9. The structure for re-arranging file allocation index by a memory block according to claim 7, wherein the double file allocation table comprises a first file allocation table and a second file allocation table.

10. The structure for re-arranging file allocation index by a memory block according to claim 7, wherein it is useful for a hard disk or a plug-and-play storage device.

11. The structure for re-arranging file allocation index by a memory block according to claim 7, wherein the secret key for the first encryption method is a machine code.

12. The structure for re-arranging file allocation index by a memory block according to claim 7, wherein the secret key for the first encryption method is a SIM card.