CN101201803A - Method for protecting data of hard disk - Google Patents
Method for protecting data of hard disk Download PDFInfo
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- CN101201803A CN101201803A CNA200610167099XA CN200610167099A CN101201803A CN 101201803 A CN101201803 A CN 101201803A CN A200610167099X A CNA200610167099X A CN A200610167099XA CN 200610167099 A CN200610167099 A CN 200610167099A CN 101201803 A CN101201803 A CN 101201803A
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000003213 activating effect Effects 0.000 claims abstract description 30
- 238000012545 processing Methods 0.000 claims abstract description 11
- 230000004913 activation Effects 0.000 claims description 34
- 238000003860 storage Methods 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000015654 memory Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000004590 computer program Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 238000005192 partition Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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Abstract
The invention provides a method used for protecting data in a hard disk and is applied to the hard disk; when a computer implements X-code of the hard disk, the hard disk can be read and the processing of activating an operating system can be finished if an identification code of the hard disk recorded by the hard disk is judged to be identical to an identification code designed by a computer; or the content in a splitting area of a disk in record of a master boot is cleaned up, therefore the hard disk can not be read and the processing of activating the operating system can not be finished. When the hard disk is stolen, another computer can not read the hard disk and finish the boot action, thus achieving the aim of protecting the data of the hard disk.
Description
Technical field
The present invention stores the hard disk identification code about hard disk in advance especially in regard to a kind of hard disk, and hard disk only can be read the method for data at the computing machine with the computer Recognition sign indicating number that meets the hard disk identification code, is a kind of method of protecting the data of hard disk concretely.
Background technology
Our life is now just marching toward an information age that electronic industry is flourish, various high-tech electronic products of being derived by counter are rapid very fast, really brought greatest breakthrough for human development in science and technology, yet, along with the continuous research and development of current various electronics technologies with progress greatly, the function of various computer systems from strength to strength, and these computer systems are equipped with at least one hard disk (Hard Disk) usually.No matter whether this hard disk possesses the function that activates its operating system, (the computer circle regulation is all deposited in the 0th magnetic post, the 0th magnetic head, first sector of hard disk all to have a main activation sector in each hard disk, the top sector of hard disk just), the main content that activates storage in the sector is called as main start record, and (Master Boot Record is called for short: MBR).Main start record includes a skip zone (Jump Area), a boot code district (MBR BootCode Area), a disk and cuts apart a list area (Partition Table Area) and an end zone etc., what tool was specified the boot code district read hard disk in the skip zone opens the beginning position, disk is cut apart list area stored disk contingency table, and the disk contingency table has the cutting state of hard disk and the information of DATA DISTRIBUTION, and the end zone then is as the main end that activates the sector of identification (its for AA 55 with two byte representations).When hard disk is set in order to the Primary Hard Drive (Master Hard Disk) that activates an operating system (Operation System), then according to the boot code in the boot code district (Boot Codes), finish the action of computer booting, so, computer system just can be carried out data access to significant data and the correlation parameter of depositing in hard disk.
And computing machine is for the data protection mode of hard disk; normally be equiped with a cryptoguard program (as: the gerentocratic password of operating system in order to the operating system on the Primary Hard Drive of activating computer system; OSAdministrator password); computing machine is before the activation manipulation system; must carry out this cryptoguard program earlier; make only after the cryptoguard program receives correct password; just allow to enter operating system; and utilize the coded program of separating of operating system that the data in the hard disk are carried out data access; when the cryptoguard program does not receive correct password; promptly can't enter operating system the data in the hard disk are carried out data access, therefore the data in the hard disk just are protected.
Yet; the password of being approved when the cryptoguard program is cracked or is stolen; or the hard disk in the computer system is stolen; and directly be mounted to after another computing machine starts shooting, another computing machine can be to carrying out data access, at this moment in the hard disk; there is no any safeguard measure in the hard disk; significant data in the hard disk will be stolen arbitrarily by other people, and in other words, there is the inconsiderate problem of information safety protection in present hard disk.
Summary of the invention
Because after hard disk was installed in any computer system, anyone can both obtain the problem of the data of hard disk after the activation of complete operation system, the inventor's purpose is to provide a kind of method of protecting the data of hard disk.
For realizing foregoing invention purpose of the present invention; the invention provides a kind of method of protecting the data of hard disk; be applied to hard disk; carry out the boot code of the main start record of hard disk when computing machine; and judge the hard disk identification code that hard disk writes down; with the set computer Recognition sign indicating number of computing machine when inequality; the content of the intrarecord disk cut section of main start is emptied; make hard disk to be read, promptly can't finish the processing of activation manipulation system, otherwise; when judging the hard disk identification code that hard disk writes down; a computer Recognition sign indicating number set with computing machine is identical, then can finish the processing of activation manipulation system, and can read hard disk.So, after hard disk was stolen, hard disk was mounted another computing machine; at this moment, the computer Recognition sign indicating number of another computing machine must be inequality with the hard disk identification code, makes another computing machine can't read hard disk; and can't finish the action of start, can reach the purpose of the data of protection hard disk.
For just feature of the present invention and effect thereof being done further understanding and are understood, cooperate graphicly especially exemplified by embodiment, be described in detail as follows.
Description of drawings
Fig. 1 is the main synoptic diagram that activates the sector of the present invention;
Fig. 2 is an action flow chart of the present invention;
Fig. 3 is the action flow chart of the setting harddisk protection of one embodiment of the invention;
Fig. 4 is the action flow chart of the cancellation hard disk protection of one embodiment of the invention;
The action flow chart of the setting harddisk protection of Fig. 5 another embodiment of the present invention;
The main sector and the new synoptic diagram that activates the sector of activating of Fig. 6 another embodiment of the present invention;
Fig. 7 another embodiment of the present invention reads the action flow chart of defence program;
The action flow chart of the cancellation hard disk protection of Fig. 8 another embodiment of the present invention;
Fig. 9 is of the present invention to enter setting harddisk be protected or the cancellation protection action flow chart.
The primary clustering symbol description:
1 hard disk identification code district, defence program storage area, 2 backup disks are cut apart list area 3
The disk contingency table 82 that storage area 80 calling zone 81 are left unused
New 9 new skip zones, sector, 90 boot code that activate open the district 91 of beginning
Embodiment
A kind of method of protecting the data of hard disk of the present invention; see also Figure 1 and Figure 2; the data method of protection hard disk of the present invention is applied in a hard disk; after hard disk is employed the program setting protection; in hard disk, cook up defence program storage area 1, hard disk identification code district 2 and backup disk in advance at least and cut apart list area 3; and when computing machine is finished selftest and initialization (BIOS POST); the defence program that elder generation fetch protection program storage area 1 is stored; and handle according to the step that defence program sets; and the step of defence program comprises:
By above-mentioned treatment step as can be known; when the hard disk identification code of hard disk is identical with the computer Recognition sign indicating number; disk in the hard disk is cut apart list area 5 and just can be stored the disk contingency table; make computing machine can read each disk contingency table, and finish the action of start, otherwise; disk in the hard disk is cut apart list area 5 and will be cleared; so, computing machine can't be finished the processing of activation manipulation system, promptly reaches the purpose of the data of protection hard disk.
Because; hard disk is employed the program setting protection; in hard disk, cook up hard disk identification code district 2, defence program storage area 1 and backup disk in advance at least and cut apart list area 3; could handle according to above-mentioned defence program; and reach the purpose of data of protection hard disk; so; in a preferred embodiment of the present invention; see also shown in Figure 3; computing machine is according to the application setting hard disk protection; cut apart the step of list area 3 in order in hard disk, to cook up hard disk identification code district 2, defence program storage area 1 and backup disk at least, comprising:
Step 22, computing machine copies to hard disk identification code district 2 as the hard disk identification code with the computer Recognition sign indicating number;
In this embodiment, computing machine reads the step of defence program, for computing machine reads and carry out the instruction of skip zone 6 earlier, is leading the address of activating in the sector 4 of beginning of opening in order to skip to defence program storage area 1, and then is reading and the execute protection program.In addition; when computing machine in the process of execute protection program; hard disk identification code district 2 that fetch protection program storage area 1 is write and backup disk are cut apart list area 3 respectively in the main address of activating in the sector 4 of beginning of opening, and then obtain hard disk identification code and each backup disk contingency table.
In this embodiment, see also shown in Figure 4ly, after hard disk was employed program setting protection, computing machine comprised according to the step of application program cancellation hard disk protection:
Step 30, computing machine judge whether hard disk has the hard disk identification code, if carry out step 31, otherwise, carry out step 34;
Step 31, computing machine judge whether the hard disk identification code is identical with the computer Recognition sign indicating number of present computing machine, if carry out step 32, otherwise, carry out step 33;
Step 32, each backup disk contingency table that computing machine is cut apart list area 3 with backup disk duplicates back disk cuts apart list area 5, cut apart the state of list area 5 in order to recover this disk, and removing defence program storage area 1, hard disk identification code district 2 and backup disk are cut apart list area 3, and reservation boot code, anticipate promptly, protected states of former beginning and end are recovered in the main sector 4 of activating, and promptly finish;
Step 33, computing machine are exported another announcement information, and another announcement information does not allow to remove main defence program storage area 1, hard disk identification code district 2 and the backup disk that activates sector 4 in order to expression and cuts apart list area 3, promptly finishes;
Step 34, computing machine are left the processing of cancellation protection hard disk, promptly finish.
From the above, (boot code promptly in the storage area of step 14), cooks up hard disk identification code district 2, defence program storage area 1 and backup disk and cuts apart list area 3 this embodiment in order to store boot code originally in main activation sector 4.When hard disk be not protected and hard disk after cancellation protection, recover main sector 4 boot code originally that activates, promptly directly according to main sector 4 boot code originally that activates, in order to finish the processing of activation manipulation system.And when hard disk is protected, be to skip to open the begin address of defence program in main activation sector 4 through reading and carry out the instruction of skip zone 6, make hard disk need, in order to reach the purpose of the data in the protection hard disk according to the defence program execution.
In this embodiment; computing machine activates sector 4 originally in order to store boot code (boot code according to application program the master; be in the storage area of step 14); advise out hard disk identification code district 2; defence program storage area 1 and backup disk are cut apart list area 3; be (to be that step 14) is edited in fact to boot code originally; in order to add aforesaid step 10～step 13 and step 15～step 17; so; this kind practice may cause boot code originally to wreck; and then cause hard disk to be activated; perhaps main activate sector 4 in the skip zone 6 and disk cut apart the storage data space of 5 of list areas; be not enough to be used for store originally in order to store boot code; defence program storage area 1; hard disk identification code district 2 and backup disk are cut apart list area 3; so; in another embodiment of the present invention, see also Fig. 5 and shown in Figure 6, computing machine is according to the application setting hard disk protection; in order in hard disk, to advise out hard disk identification code district 2 at least; defence program storage area 1 and backup disk are cut apart the step of list area 3, comprising:
By above-mentioned setting, in this embodiment, see also shown in Figure 7ly, computing machine reads the step of defence program, comprising:
And in this embodiment; when computing machine in the process of execute protection program; hard disk identification code district 2 that fetch protection program storage area 1 is inserted and backup disk are cut apart list area 3 respectively in the new address of activating in the sector 9 of beginning of opening, and then read hard disk identification code and each backup disk contingency table from new activation sector 9 respectively.
In this embodiment, see also shown in Figure 8ly, after hard disk was employed program setting protection, computing machine comprised according to the step of application program cancellation hard disk protection:
By as can be known above-mentioned; computing machine does not carry out any editor to hard disk boot code originally; but in the idle storage area of hard disk, edit; so; can reduce the ruined chance of boot code; and needn't consider the storage area of boot code originally, whether be not enough to be used for store originally and cut apart list area 3 in order to store boot code, defence program storage area 1, hard disk identification code district 2 and backup disk.
In these embodiment, it is protected or the step of cancellation protection that computing machine enters setting harddisk with hard disk according to application program, sees also shown in Figure 9ly, comprising:
In sum; after the computer for executing application programs; available setting harddisk is protected or the cancellation protection; and after hard disk is set protection; only, could cut apart list area 5 at disk and read the disk contingency table, but not originally hard disk is set at other computing machine of protection originally hard disk being set at the computing machine of protection; then can't cut apart list area 5 and read the disk contingency table, in order to reach the purpose of protecting data stored in the hard disk at disk.
Press, the above only is the preferable specific embodiment of the present invention, only structural attitude of the present invention is not limited thereto, anyly be familiar with this skill person in field of the present invention, can think easily and variation or the equipollent of modification, all can be encompassed in the claim of following this case.
Claims (22)
1. method of protecting the data of hard disk; it is characterized in that; the method of the data of described protection hard disk is applied in a hard disk; after described hard disk is set protection; in described hard disk, advise out a hard disk identification code district, a defence program storage area and a backup disk in advance at least and cut apart the list area; and when described computing machine is finished selftest and initialization; read the stored defence program in described defence program storage area earlier; and handle according to the step that described defence program sets; and the step of described defence program comprises:
Read a hard disk identification code that is stored in advance in the described hard disk identification code district;
Judge that described hard disk identification code is whether identical with the set computer Recognition sign indicating number of described computing machine;
Described hard disk identification code is identical with the computer Recognition sign indicating number when judging, and whether a main disk that activates in the sector of then judging described hard disk is again cut apart the list area and be cleared;
Cut apart the list area and be cleared when judging described disk, then described backup disk is cut apart each backup disk contingency table that the list area stores in advance and copied to described disk and cut apart in the list area respectively as a disk contingency table; And
Handle according to a main boot code that activates in the sector again, in order to finish the activation manipulation system.
2. the method for claim 1 is characterized in that, described hard disk identification code is identical with the computer Recognition sign indicating number when judging, and described disk is handled according to boot code, in order to finish the activation manipulation system when cutting apart the list area and not being cleared.
3. the method for claim 1 is characterized in that, when judging described hard disk identification code and computer Recognition sign indicating number when inequality, handles according to the following step:
Judge that described disk cuts apart the list area and whether be cleared;
Cut apart the list area and be not cleared as yet when judging described disk, then duplicating at present all disk contingency tables of cutting apart the list area at described disk becomes each backup disk contingency table that described backup disk is cut apart the list area respectively;
Empty described disk and cut apart all disk contingency tables of list area; And
Handle output notice information according to described boot code, described announcement information is cut apart the list area in order to the expression disk does not have the disk contingency table.
4. method as claimed in claim 3, it is characterized in that, described hard disk identification code and computer Recognition sign indicating number are inequality when judging, and judging disk cuts apart the list area and is cleared, handle output notice information according to boot code, described announcement information is cut apart the list area in order to the expression disk does not have the disk contingency table.
5. the method for claim 1; it is characterized in that; the described hard disk of described computer settings is protected, cuts apart the step of list area in order to cook up described hard disk identification code district, defence program storage area and backup disk at least in described hard disk, comprising:
In a described main set skip zone and the described disk contingency table interval, sector of activating, be the described main storage area that activates the sector script in order to the storage boot code, set up described defence program storage area, hard disk identification code district and backup disk in regular turn and cut apart the list area; And
In described skip zone, write described defence program storage area in the described main address of activating in the sector of beginning of opening; and described computer Recognition sign indicating number copied to described hard disk identification code district as described hard disk identification code; described backup disk is cut apart the list area and then as preparation described disk is cut apart the storage area that disk contingency tables all in the list area saves as each backup disk contingency table, and described defence program storage area writes described defence program, hard disk identification code district and backup disk and cuts apart the list area and open the beginning address described main the activation in the sector.
6. method as claimed in claim 5; it is characterized in that; the step that described computing machine reads described defence program is; described computing machine reads described skip zone earlier and leads the address of activating in the sector of beginning of opening to obtain described defence program storage area described, and then reads defence program.
7. method as claimed in claim 5; it is characterized in that; described computing machine is in the process of carrying out described defence program; described computing machine reads the described hard disk identification code district and the backup disk contingency table district that write in the described defence program storage area and leads the address of activating in the sector of beginning of opening described respectively, and then obtains described hard disk identification code and each described backup disk contingency table.
8. method as claimed in claim 5 is characterized in that, after described hard disk was set protection, the step of described computing machine cancellation hard disk protection comprised:
Computing machine judges whether described hard disk has described hard disk identification code;
Have described hard disk identification code when judging described hard disk, judge again whether described hard disk identification code is identical with the computer Recognition sign indicating number of present computing machine; And
Identical when judging described hard disk identification code with the computer Recognition sign indicating number of present computing machine; each backup disk contingency table of then described backup disk being cut apart the list area duplicates back disk cuts apart the list area; cut apart the state of list area in order to recover described disk; and removing defence program storage area, hard disk identification code district and backup disk are cut apart the list area; and the reservation boot code, the main sector of activating reverts to protected state of former beginning and end.
9. method as claimed in claim 8; it is characterized in that; judge described hard disk when described computing machine and have described hard disk identification code; and it is inequality with the computer Recognition sign indicating number of present computing machine to judge described hard disk identification code; then export another announcement information, described another announcement information does not allow to remove main defence program storage area, hard disk identification code district and the backup disk that activates the sector in order to expression and cuts apart the list area.
10. method as claimed in claim 8 is characterized in that, judges described hard disk when described computing machine and does not have described hard disk identification code, and described computing machine leaves the processing of cancellation protection hard disk.
11. the method for claim 1; it is characterized in that; the described hard disk of described computer settings is protected, cuts apart the step of list area in order to cook up described hard disk identification code district, defence program storage area and backup disk at least in described hard disk, comprising:
Set up a calling zone in the described main sector of activating in order to the residue storage area of storage area after boot code that stores boot code;
Find out described disk and cut apart one of them idle disk contingency table in the list area;
Write the address that interrupt instruction reaches idle disk contingency table in described calling zone;
Write the address of specifying an idle sector in the described hard disk at idle disk contingency table, and newly activate the sector as one with described idle sector;
Being provided with a new skip zone, described hard disk identification code district, described backup disk in described new activation sector in regular turn cuts apart list area, a boot code and opens beginning district and described defence program storage area;
In described skip zone, write calling zone in the described main address of activating in the sector of beginning of opening;
In described new skip zone, write described defence program storage area and in described new activation sector, open the beginning address, and described computer Recognition sign indicating number copied to hard disk identification code district as the hard disk identification code;
Backup disk is cut apart the list area as disk being cut apart the storage area that disk contingency tables all in the list area saves as each backup disk contingency table; And
Defence program storage area storage protection program, hard disk identification code district, backup disk are cut apart the list area and are opened the beginning address new the activation in the sector, and boot code opens the beginning district and opens the beginning address main the activation in the sector.
12. method as claimed in claim 11 is characterized in that, described computing machine reads the step of described defence program, comprising:
Read described skip zone, obtain described calling zone in the described main address of activating in the sector of beginning of opening;
Read described calling zone to obtain the address of described idle disk contingency table;
Read described idle disk contingency table, obtain described new activation sector in the address of hard disk, the execution interrupt instruction will newly activate the sector and read from hard disk to primary memory; And
Read described new skip zone, obtain described defence program storage area in described new activation sector open the beginning address, read defence program.
13. method as claimed in claim 11; it is characterized in that; when computing machine in the process of execute protection program; read the described hard disk identification code district that inserts described defence program storage area and described backup disk contingency table district and in described new activation sector, open the beginning address respectively, and then from described new activation sector, read described hard disk identification code and each described backup disk contingency table respectively.
14. method as claimed in claim 11 is characterized in that, after described hard disk was set protection, the protected step of described computing machine cancellation hard disk comprised:
Judge whether described hard disk has described hard disk identification code;
Have described hard disk identification code when judging described hard disk, judge then whether described hard disk identification code is identical with the computer Recognition sign indicating number of present computing machine; And
Described hard disk identification code is identical with the computer Recognition sign indicating number of present computing machine when judging, and then the described main sector of activating is reverted to protected state of former beginning and end.
15. method as claimed in claim 14; it is characterized in that; the step of former protected state of beginning and end is recovered in main activation sector; comprise that each backup disk contingency table that backup disk is cut apart the list area duplicates back disk and cuts apart the list area; cut apart the state of list area in order to recover described disk; remove the data that new activation sector, calling zone and idle disk contingency table are written into, and write boot code in the main address of beginning of opening of activating the sector in the skip zone.
16. method as claimed in claim 14; it is characterized in that; has described hard disk identification code when judging described hard disk; and judge that described hard disk identification code is inequality with the computer Recognition sign indicating number of present computing machine; then export another announcement information, another announcement information is cut apart the list area in order to defence program storage area, hard disk identification code district and backup disk that expression does not allow to remove new activation sector.
17. method as claimed in claim 14 is characterized in that, does not have described hard disk identification code when judging described hard disk, then leaves the processing of cancellation protection hard disk.
18., it is characterized in that it is protected or the step of cancellation protection that described computing machine enters setting harddisk with hard disk according to application program, comprising as claim 8 or 14 described methods:
Obtain the computer Recognition sign indicating number that stores in advance in the described computing machine;
Export user's menu, described user's menu comprises that one activates a protection hard disk option and a cancellation protection hard disk option;
Judgement is that described activation protection hard disk option or described cancellation protection hard disk option are selected; And
Protection hard disk option is selected when activating, and cuts apart the step of list area and handles according to setting up described defence program, hard disk identification code and backup disk.
19. method as claimed in claim 18 is characterized in that, and is selected when described cancellation protection hard disk option, handles according to the step of the described hard disk protection of cancellation.
20. the method for claim 1 is characterized in that, described computer Recognition sign indicating number can be general unique identification sign indicating number.
21. method as claimed in claim 20 is characterized in that, described general unique identification sign indicating number is the value of the general unique identifier field of system management Basic Input or Output System (BIOS) form 1.
22. the method for claim 1 is characterized in that, each backup disk contingency table duplicates hard disk and is stored in all disk contingency tables that the main disk that activates the sector is cut apart the list area before not protected as yet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610167099A CN101201803B (en) | 2006-12-14 | 2006-12-14 | Method for protecting data of hard disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610167099A CN101201803B (en) | 2006-12-14 | 2006-12-14 | Method for protecting data of hard disk |
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| Publication Number | Publication Date |
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| CN101201803A true CN101201803A (en) | 2008-06-18 |
| CN101201803B CN101201803B (en) | 2010-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610167099A Expired - Fee Related CN101201803B (en) | 2006-12-14 | 2006-12-14 | Method for protecting data of hard disk |
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| CN (1) | CN101201803B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198029A (en) * | 2012-01-05 | 2013-07-10 | 精品科技股份有限公司 | USB drive with protection mechanism and data storage system |
| CN103294971A (en) * | 2012-10-17 | 2013-09-11 | 西安晨安电子科技有限公司 | Method for realizing burglary prevention and data protection of hard disk |
| CN117644101A (en) * | 2023-11-20 | 2024-03-05 | 北京信佳伟业科技发展有限公司 | Hard disk destroying machine with information acquisition function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1450459A (en) * | 2002-04-10 | 2003-10-22 | 联想(北京)有限公司 | Hard disc data protector |
-
2006
- 2006-12-14 CN CN200610167099A patent/CN101201803B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103198029A (en) * | 2012-01-05 | 2013-07-10 | 精品科技股份有限公司 | USB drive with protection mechanism and data storage system |
| CN103198029B (en) * | 2012-01-05 | 2016-06-29 | 精品科技股份有限公司 | There is Portable disk and the data storage system of preventing mechanism |
| CN103294971A (en) * | 2012-10-17 | 2013-09-11 | 西安晨安电子科技有限公司 | Method for realizing burglary prevention and data protection of hard disk |
| CN117644101A (en) * | 2023-11-20 | 2024-03-05 | 北京信佳伟业科技发展有限公司 | Hard disk destroying machine with information acquisition function |
| CN117644101B (en) * | 2023-11-20 | 2024-05-07 | 北京信佳伟业科技发展有限公司 | Hard disk destroying machine with information acquisition function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101201803B (en) | 2010-05-19 |
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