CN1102262C - Method for protection of hard disc based on computer main board fixation memory device - Google Patents
Method for protection of hard disc based on computer main board fixation memory device Download PDFInfo
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- CN1102262C CN1102262C CN99100704A CN99100704A CN1102262C CN 1102262 C CN1102262 C CN 1102262C CN 99100704 A CN99100704 A CN 99100704A CN 99100704 A CN99100704 A CN 99100704A CN 1102262 C CN1102262 C CN 1102262C
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Abstract
The present invention relates to a method for protecting a hard disk based on a computer main board hardened memory. System software for protecting the hard disk and a computer main board BIOS are combined and are stored in a main board FLASHROM and resides in a BIOSROM, an administrator mode and a user mode are divided in a program, and a backup region which can not be seen by users and application software is arranged on the hard disk. Through the fact that an INT13H entrance pointing address in an interrupt vector table is modified, the present invention points to a resident program of the software of the present invention in a corresponding interrupt request and does not directly point to an INT13H function routine of a standard BIOS.
Description
The present invention relates to a kind of hard disk protecting method that solidifies storer based on computer motherboard.
Today, the computer operating system that people use always becomes increasingly complex, and is more and more huger, tens megabyte at least, hundreds of at most megabyte.It is also more and more higher to operating personnel's technical requirement, and misoperation, or infected by computer virus a little just might cause system crash.Sometimes the destruction of critical system file or lose can make system recovery very the difficulty.Especially in the computer teaching environment, the destruction of operating system and system core parameter (as the parameter among the CMOS), the thing that the infected by computer virus right and wrong are usually seen are faced tens up to a hundred computing machines, and managerial personnel are often unable to do what one wishes.And for the general computer operator of enterprises and institutions, it also is extremely general thing that maloperation and virus cause system normally not move.Present solution is disk format normally, with the antivirus software virus killing, reinstalls system, often causes loss of data and do like this, and wastes time and energy, and non-technical personnel can't be finished, and brings great inconvenience to the user.To this; some companies have designed hard disk protecting card; be generally the isa bus interface; what have need receive the signal wire of hard disk on the protection card; the preceding adapter by the entry address of revising INT13H of system bootstrap controlled the read-write operation of hard disk; all operations to hard disk all need to handle through protection card like this, to reach the purpose of protection hard disk.Also have some companies to design hard disk protection software; it is by revising the normal boot of operating system position in the hard disk boot sector; change the boot of hard disk protection software into; the software of guiding hard disk protection earlier when system start-up; resident conventional memory; revise the inlet sensing address that INT13H and INT1/2/6/8/12/13/14 etc. interrupt; jump to the resident entry address of hard disk protection software appointment; simultaneously; by simple operation hard disk partition table, FAT, root directory; the Virtual Realization hard disk read-write operations, and do not do the purpose that data backup reaches the protection hard disk.
Above-mentioned two kinds of schemes, the needs that have add the ISA card, not only the cost height, the height to 500 that has, 600 yuan, and the part address space of the C8000 that will take the Shadow district during system start-up in the D7FFF section, can not adapt to all mainboards, often cause conflict and cause and can not guide; The needs that have are revised normal booting operating system district, FAT table, root directory reaches the protection purpose.The defence program of pure software mode will be stored in the designated sector of hard disk, is destroyed easily; In a single day its FAT table is easy to occur entanglement in logic, can't repair and have problem, total system will collapse also.Because having revised hard disk boot section, hard disk partition table, FAT, root directory has caused serious compatible hidden danger.In addition, similar protection card and software in the existing market all need resident conventional memory, be easy to be used as virus sweep by common antivirus software, and at this moment user's operation just can not obtain any protection.More than these defectives all the normal operation of operating system and application program has been constituted very big threat, its security is very doubtful.In addition, they mostly do not support the FAT32 file layout.
The object of the present invention is to provide a kind of new hard disk protection solution, overcome the defective that exists in the above-mentioned prior art based on computer motherboard curing storer.
Method provided by the invention realizes protection to hard disk by following steps: (1) together writes Hardisk protecting system software of the present invention among the mainboard curing storer Flashrom with computer motherboard BIOS, and itself and computer BIOS are combined together naturally; (2) behind the BIOS initialization system, guide the E0000H-F0000H address field in the automatic resident BIOS ROM Shadow of the Hardisk protecting system software of the present invention district; (3) inlet of revising INT13H in the interrupt vector table points to the address, makes it point to Hardisk protecting system software resident program of the present invention when the respective interrupt request, rather than directly points to the INT13H function routine of standard BIOS; (4) operation Hardisk protecting system software of the present invention is offered in hard disk user and the sightless backup area of application software; (5) divide administrator mode and user model, in administrator mode, can carry out the backup of fdisk, carry out read-write operation to hard disk; And under user model, the disk physical address parameter in the resident program monitoring INT13H function routine makes it to visit backup area.
Advantage or good effect that the present invention is compared with prior art had are:
Safe: at first, the hard-disk system kernel software is adjusted parameter according to different mainboards, together writes mainboard with computer motherboard BIOS and solidifies among the storer Flashrom, combines together naturally with computer BIOS, and enjoys same priority with BIOS.Before booting operating system, this program of vector preferably resides in E0000H to the F0000H section in the special-purpose Shadow of mainboard BIOS district with watchdog routine, and any antivirus software and application program all can not be visited.Therefore, do not need to revise normal hard disk boot section, hard disk partition table, FAT, root directory, thereby have very high reliability and security.Secondly, this software has been done the identical backup of a cover respectively and has also been protected at data in hard disk partition table, FAT1/2, the data field and the parameter among the CMOS.The 3rd, divide administrator mode and user model.In administrator mode, the user can carry out the backup of fdisk, to the hard disk write data.And under user model, application program all will be protected the monitoring of program to the read-write of hard disk, and any hard disk read-write operations that the user carries out can not write backup area.
With low cost: the present invention adopts the pure software mode, together produces with mainboard, does not need extra integrated circuit board and other storage mediums, and cost is all lower than any similar products in the existing market.
Use simple: the user does not need to understand advanced computer technology, only need be according to the prompting menu, select operating mode (administrator mode or user model), change password, selection subregion carry out back up or restore, perhaps press shortcut and just can make system partitioning return to the state of last backup when system start-up.
Function is strong: its characteristics are
1, supports FAT16, FAT32 zoned format;
2, full Chinese interface is succinct practical;
Restart before the hard disk guiding of back, enter menu of the present invention (adding the level password protection), following option is arranged by hot key:
This program of operation shows master menu.
1. back up specified partition and CMOS parameter
2. recover specified partition and CMOS parameter
3. modification administrator's password
4. entrance management person's pattern
5. unloading protecting system
3. establish level password, realize supervisor level management---renewal and the recovery of the image recovery of system region, the content update of MIRROR SITE, CMOS by password;
4. have in the time of to read and write data backup area, warning is provided;
5. this hard-disk system protection software can unload safely.
Anti-virus: software of the present invention is protected CMOS, motherboard flash Rom data; virus to the destruction hardware that comprises present virus CIH all can effectively be taken precautions against; as long as the user guarantees file, the data when backup and does not contain virus; even infected by computer virus just can also be removed virus by recovery system as long as the user presses the recovery shortcut when starting computing machine later on.
Below specific embodiments of the present invention are given to describe in detail
At first, by hard disk planning instrument,, when the planning hard disk, tell a backup area that has only software of the present invention to discern specially as FDISK Utility.When the 64Byte hard disk partition table in any other FDISK instrument modification hard disk master boot record, the resident program of software of the present invention all can report to the police and forbid to revise.
It will be realized: 1. the backup area to user's appointment adds special marking in hard disk partition table, makes it right
The user is invisible.
2. dividing one section address space identical with the user definition subregion from disk backups
The district.
Others are the same with existing FDISK instrument.Secondly, revise INT13H: point to address (Entry Point) by the inlet of revising INT13H in the interrupt vector table (Interrupt Vector Table), make it when the respective interrupt request, be directed to the resident program of software of the present invention, rather than directly point to the INT13H function routine Fuctions of standard BIOS.Once more, resident program: software resident program of the present invention is that the boot of software of the present invention will guide the address field E0000H-F0000H of this program residence at the special-purpose primary memory of ROMBIOS when giving software of the present invention with control behind the BIOS initialization system.Common in the market application program, antivirus software and the virus data in all can not this address field of access.Thereby more any other hard disk protecting method is safer and more reliable.
Comprised the I/O monitoring of external storage, input-output device in the resident program, menu interface, fdisk and CMOS backup; fdisk and CMOS recover, administrator's password, the unloading of protection software; administrator mode, user model is to the protection of backup subregion and CMOS etc.Below be software boot flow figure of the present invention:
The Backup Data method of operating is as follows in the present invention: (# is a comment section)
The process of restore data is as follows in the present invention:
In the present invention, administrator mode is the notion with respect to user model.Under user model, the user can only carry out read-write operation to visible partition, can not visit backup area.Disk physical address parameter among resident program monitoring INT13HFuction02H, 03H, 05H, 08H, 0CH, the 12H etc. makes it to visit backup area.And under administrator mode, cancel above-mentioned restriction, and simultaneously or backup to backup area when the guidance system next time to user's hard disk write operation.
Protection software unloading among the present invention: the distinctive mark of cancellation backup subregion during unloading; recover the normal entry address of INT13H; recovery operation system main partition record, main bootstrap program, CMOS parameter return to backed up data in the alternate sector in the corresponding subregion of hard disk.With among the CMOS corresponding to the switch parameter zero setting of this program, preservation is withdrawed from, after the guiding, all recover normal once more.
Claims (1)
1. one kind solidifies the hard disk protecting method of storer based on computer motherboard, it is characterized in that may further comprise the steps:
(1) Hardisk protecting system software of the present invention and computer motherboard BIOS are together write among the mainboard curing storer Flashrom;
(2) behind the BIOS initialization system, guide the E0000H-F0000H address field in the automatic resident BIOS ROM Shadow of the Hardisk protecting system software of the present invention district;
(3) inlet of revising INT13H in the interrupt vector table points to the address, makes it point to Hardisk protecting system software resident program of the present invention when the respective interrupt request, rather than directly points to the INT13H function routine of standard BIOS;
(4) operation Hardisk protecting system software of the present invention is offered in hard disk user and the sightless backup area of application software;
(5) divide administrator mode and user model, in administrator mode, can carry out the backup of fdisk, carry out read-write operation to hard disk; And under user model, the disk physical address parameter in the resident program monitoring INT13H function routine makes it to visit backup area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99100704A CN1102262C (en) | 1999-02-10 | 1999-02-10 | Method for protection of hard disc based on computer main board fixation memory device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99100704A CN1102262C (en) | 1999-02-10 | 1999-02-10 | Method for protection of hard disc based on computer main board fixation memory device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1225475A CN1225475A (en) | 1999-08-11 |
| CN1102262C true CN1102262C (en) | 2003-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99100704A Expired - Fee Related CN1102262C (en) | 1999-02-10 | 1999-02-10 | Method for protection of hard disc based on computer main board fixation memory device |
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| Country | Link |
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| CN (1) | CN1102262C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392593C (en) * | 2006-05-12 | 2008-06-04 | 张健 | Method for protecting hard disk last partition |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308846C (en) * | 2002-12-16 | 2007-04-04 | 联想(北京)有限公司 | Method and apparatus for realizing protection of computer operation system in hard disk |
| CN102736983B (en) * | 2011-04-14 | 2016-05-25 | 上海华虹集成电路有限责任公司 | Control the method for smart card FLASH space size |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1124377A (en) * | 1995-12-21 | 1996-06-12 | 沈阳工业高等专科学校工矿备件公司 | Hard disk information protective technology and equipment for micro computer |
| CN1173669A (en) * | 1997-07-31 | 1998-02-18 | 周恽 | Method and appts. of transparent protection for computer rigid disk storage contents |
| TW337011B (en) * | 1997-08-06 | 1998-07-21 | Jyh-Yeong Lay | Protective recovery card for hard disk system |
-
1999
- 1999-02-10 CN CN99100704A patent/CN1102262C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1124377A (en) * | 1995-12-21 | 1996-06-12 | 沈阳工业高等专科学校工矿备件公司 | Hard disk information protective technology and equipment for micro computer |
| CN1173669A (en) * | 1997-07-31 | 1998-02-18 | 周恽 | Method and appts. of transparent protection for computer rigid disk storage contents |
| TW337011B (en) * | 1997-08-06 | 1998-07-21 | Jyh-Yeong Lay | Protective recovery card for hard disk system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392593C (en) * | 2006-05-12 | 2008-06-04 | 张健 | Method for protecting hard disk last partition |
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| Publication number | Publication date |
|---|---|
| CN1225475A (en) | 1999-08-11 |
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Granted publication date: 20030226 Termination date: 20100210 |