Hard disk write-protection lock based on USB equipment under Windows environment

A write protection, hard disk technology, applied in the protection of internal/peripheral computer components, instruments, electrical digital data processing, etc., can solve problems affecting the judicial validity of hard disk data, and achieve high practical value, novel design, and low cost of use Effect

Inactive Publication Date: 2010-04-14
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The installation process and working process of this type of hard disk protection lock have modified the data on the hard disk, affecting the judicial validity of the hard disk data.

Method used

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  • Hard disk write-protection lock based on USB equipment under Windows environment
  • Hard disk write-protection lock based on USB equipment under Windows environment
  • Hard disk write-protection lock based on USB equipment under Windows environment

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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The present invention is not limited to the following embodiments, and any designs that utilize the design ideas of the present invention and make some simple changes should fall within the scope of protection of the present invention.

[0019] The USB device is used as the carrier of the loading program and the hard disk write protection lock program. The loading program is stored in sector 0 of the USB device, and the hard disk write protection lock program is stored in the hidden sector of the USB device. USB devices use normal partitions for ordinary data copying, ie figure 2 Middle USB data area; the hidden partition of the USB device is used to store the data that should be written to the target hard disk, namely figure 2 hard disk data area.

[0020] The hard disk write protection lock program (DiskLock.sys) works in the Win...

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PUM

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Abstract

The invention relates to the field of computer forensics, in particular to a write protection lock for a hard disk in the Windows environment. The write protection lock comprises a USB unit, a loadingprogram deposited in the sector 0 of the USB unit, a hard disk write-protection lock program deposited in the hidden sector of the USB unit. The loading program monitoring Windows operation system intermits the read-write of an objective hard disk through INT13H; when a computer is started up, the hard disk write protection lock program is embedded into the Windows operation system. The hard diskwrite-protection lock program monitoring Windows operation system reads and writes the objective hard disk through a drive program, and redirects write operation to the UBS unit, thereby preventing thedata on the hard disk from being modified. The write protection lock is designed originally; no additional hardware units are needed between a computer motherboard and the hard disk. The service cost is low, and just one USB unit supporting the start-up from USB is needed; the use value is high; the write protection lock can be used as a running platform for computer crime forensics software.

Description

technical field [0001] The invention relates to the field of computer evidence collection, and specifically provides a method for realizing a hard disk write protection lock based on a USB device in a Windows environment. Background technique [0002] With the increasing degree of informatization, computer crimes are becoming more and more common. Compared with common crime forensics, computer crime forensics has a strong particularity. Computer data is generally stored on the local hard disk, and extracting valuable information from the computer hard disk is a research hotspot in computer crime forensics. Directly running the Windows operating system on the criminal's hard disk to reproduce the working environment of the criminal will make the forensics work quick and efficient; however, it is necessary to use the hard disk write protection lock to prevent the Windows operating system from modifying the data on the hard disk. [0003] Currently existing hard disk write pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/14G06F21/02G06F21/70
Inventor 谭毓安王佐
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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