A method for hiding system partitions

A system partition and partition table technology, which is applied in the fields of instruments, digital data processing, internal/peripheral computer component protection, etc., can solve the problems that the data of the encrypted partition cannot be recognized by the file system, and the encrypted data is destroyed, so as to improve the concealment. and security, avoids misformatted operations, and has a wide range of effects

Inactive Publication Date: 2016-09-28
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, when the existing hard disk encryption software encrypts the system partition of the mobile hard disk, it does not have the function of implementing hidden protection for the encrypted partition. When the mobile hard disk is inserted into a host computer that is already running an operating system, the data in the encrypted partition cannot be recognized by the file system. , so that the request to format the partition pops up. Once the user performs the operation, the encrypted data will be destroyed

Method used

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  • A method for hiding system partitions
  • A method for hiding system partitions
  • A method for hiding system partitions

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Embodiment Construction

[0024] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0025] Such as figure 1 As shown, the basic steps of the embodiment of the present invention are as follows. First, in the encryption software execution system encryption initialization stage, the operation to the partition table is added during the master boot record, and the file system type identification of the system partition to be encrypted is changed to a hidden type value (step a). Then, through the read and write function in the real mode of the encryption software, when the function calls the int13 interrupt service function to read the sector, if the content of the partition table is involved, the partition table is immediately modified in the target buffer, and the encrypted system The file sy...

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Abstract

The invention discloses a system partition hiding method. A file system type identification of each encryption system partition on a hard disk is set into a hidden value; under the system operation state, the reading operation is carried out on a partition table of the hard disk, and the file system type identification of the corresponding encryption system partition in an internal storage buffering region is changed into a normal value and then is read; when the writing operation is carried out on the partition table of the hard disk, a section of internal storage space is applied for, data to be written is copied to the applied internal storage buffering region, the file system type identification of the corresponding encryption system partitioning in the internal storage buffering region is changed into a hidden value and then is written on the hard disk. According to the method, the incorrect formatting operation is effectively avoided, a drive does not need to be distributed for the encryption partition by a system, and the hidden property of the encryption partition is enhanced.

Description

technical field [0001] The invention relates to hard disk encryption technology, in particular to a method for hiding system partitions. Background technique [0002] The data security of the mobile hard disk is of great significance to users. In order to protect the data, the partition on the mobile hard disk can be encrypted by using software encryption. At present, open source hard disk encryption software at home and abroad is relatively mature. Using virtual disk technology, data in selected areas can be loaded into hard disk partitions using virtual disk drives, and the encryption and decryption modules are built into the virtual disk drives to realize oriented Transparent encryption and decryption at the user layer. Some existing hard disk encryption software has a system partition encryption function, which can write its own startup program in the reserved sector area of ​​the hard disk, and take over the boot loading process of the system. However, when the existi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/78
CPCG06F21/805
Inventor 程雪岷马建设覃冠杰缪华林家用
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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