TWI326411B - Method for protecting data in a hard disk - Google Patents

Description

1326411 . IX. Description of the invention: [Technical field of the invention] The present invention relates to a computer, in particular to an interrupt instruction of a computer using a basic output wheeled system According to the protection description data, it is decided to continue to complete the method of starting the operating system. [Prior Art] Press, computer (such as: desktop computer, notebook computer or servo machine...) usually installs at least one hard disk machine (Hard Disk), each hard disk machine has a main boot magnetic area ( The computer industry regulations are stored in the hard disk drive's zero cylinder (cylinder 0), the zeroth head (Head 0), the first magnetic zone (Sector 1) 'that is the front of the hard disk drive area, the main start A master boot record (MBR) is stored in the magnetic zone. The main boot record includes a jump area (Jump Area) which is specified to read the boot code area of the hard disk drive, and a MBR Boot Code Area for storing the boot code. A partition partition table (Partition Table Area) of each of the disk partition tables is stored, and a portion of the end region (which is represented by two bytes in the AA 55) as an end of identifying the main boot sector. When the hard disk drive is set to start a working system (Master Hard Disk of the Operation System), the action of starting the operating system is completed according to the content of the main boot record, so that the computer can The data is stored in the hard disk drive. However, the cases of computer theft are endless. For many computer users, the loss caused by the computer is often not the price of the computer itself -5-1326411. The weight of the (four) material may have been 丄 k U public property number of the computer '--after the theft, if the person with the heart of the brain hard disk (four) information to the resignation, it is a big trouble. Therefore, the secret industry is older than the above _ questions , riding out - the kind of hard disk machine tilting green, - dumping hard shot (four) material, to avoid the occurrence of data outflow.

The above data protection method for the hard disk drive is added to the (four) system to add a password-based program (such as: Microsoft (four) unified user password) to enable the computer to complete the boot operating system, then execute the password protection program And ask the user to enter the password. After the password protection program receives the correct password, the user is allowed to log in to the job, and then the operating system's decoding program is used to access the data in the hard disk drive. . When the password is not touched, the system cannot access the operating system, and the data is not accessible to the hard disk. The data in the hard disk is protected.

However, when the computer is stolen, the domain extractor directly installs the hard disk drive to another computer, and the stealer only needs to use another hard disk drive of another computer to start the other operating system. The tool or the hacking tool invades the stolen hard disk towel and accesses the hard disk drive of the computer taken by the thief. At this time, the hard disk drive of the stolen computer is equivalent to no protection measures, and the important information of the hard disk drive will be arbitrarily accessed by the thief. In other words, the current hard disk drive does not have sufficient protection for the data. [Summary of the Invention] In view of the fact that the data of the hard disk drive is still leaking, the inventor finally developed the method of designing the machine after a long period of -6-1326411. One of the objects of the present invention is to provide a method of "computer" in the stage of self-testing of the computer = the device of the poor material has been described briefly, and the data of the hard disk is found. Part of the Nern and protection traces have a disk partition table that can be powered and cut

The computer can complete the field 4 self-war, make the disc player who operates the system, and can identify the data of the computer and the computer with the hard specific part = take two, the second = Γ, match When the disk partition of the hard disk drive is cleared, ^.,,, and the method is reversed to any disk phase table, immediately after the completion of the self-measurement process, not only makes Li Tong w £ do not make the shirt The processing of the startup operating system, and the inability to harden the data to protect the hard drive. Insects can be used to determine the characteristics and functions of the present invention, and to understand and understand the 'examples of the implementation of the drawings, detailed description is as follows · [Embodiment] ... this bribe - Wei protection The method of the hard disk machine, the use of a computer in a computer's 凊 第 第 第 第 第 第 , , , , , , 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑After the initialization code of the interface device is executed, it will be processed according to the following steps: (1) Calling the basic output input system interrupt command to read all the hard disk drives; (11) determining whether there is any hard disk The machine has not been confirmed yet, if yes, proceed to step (10) 'Otherwise, proceed to step (15); (12) read one of the (four) machines that have not been identified yet, and determine whether there is a protection description data 4 in the hard disk drive, If so, proceed to step (10) 'Otherwise, proceed to step (11); in an embodiment of the invention. Referring to FIG. 2, the data structure of the protection description material 4 includes an identification mark area 40, a hard disk identification code storage area 42, a backup disk partition table storage area 44, and a check code. 〇de) The storage area in which the identification information stored in the identification area 40 is used to indicate the identification information of the protection description data 4 in the hard disk drive. The hard disk identification code storage area 42 is a storage-hard disk identification code. The hard disk identification code is the same as the computer's computer code that the hard disk drive needs to be trusted, and the computer identification code can be the universal unique identification code ((5) defeat (10)

Unique Identification (UUiD), for example, the system management basic input and output system (SMBIOS; System Management BIOS) form i〇ype i) universal unique identification code (UUID) Na [value, in other words, the hard code is also Universal unique identifier. The backup disk partition table storage area 44 is used for storing the backup disk partition table, and the contents of the backup disk partition table are separated from the disk of the main boot record in the hard disk drive when the hard disk drive needs to be protected. The contents of all the disk partition tables stored in Table Area 5 (as shown in Figure 7 or Figure 8) are the same. Check code storage 1326411 area 46 stores the value of the protection description data 4 after the check program is calculated; (13) whether the cut-off fabric 4 has the same part as the electric riding system, if it is, Step (14) is performed, otherwise step (16) is performed; in this embodiment, the step of determining the protection description, whether the material has a portion corresponding to the computer identification code set by the computer, is read. Take the hard disk identification code storage area 42, the hard disk identification code, and judge whether the hard disk identification code is the same as the computer identification code. Since (4) the Lang code and the electric service code are common identification codes, and the hard disk identification code is It is the same as the computer ID of the computer that needs to be protected by the hard disk drive. Therefore, if the hard disk machine is read on other computers that need to be protected by the non-hard disk drive, then the computer identification of the other computer must be The hard disk identification code is different. Therefore, it is necessary to check whether the protection description data 4 has a part corresponding to the computer identification code set by the computer to determine the subsequent processing steps; (14) Make the disk partition table Zone 5 has a disk partition table. According to the step (8), in the embodiment, 'please refer to FIG. 3, the step of storing the disk partition table in the disk partition table area 5; (140) determining the disk partition table in the machine record Whether the area 5 is in the empty state 'if yes' to the step (141) 'other, proceed to step (142); (141) copy all the backup disk sub-tables of the backup disk partition table storage area 44 into the main boot record The disk partition table area 1326411 5 ' is used as the individual disk partition table, that is, the end; (142) the disk partition table area 5 in the master boot record already exists in each disk partition table; at this time, the disk partition 5 All the disk partition tables are copied to the backup disk partition table storage area 44 to back up all the new disk partitions, and the touch value is again calculated according to the check program, and the touch code storage area 46 is End.

In the example, the computer needs to confirm whether the magnetic 5 in the main boot record is in the empty state. The reason is that the hard disk drive I is in the other-transfer, the hard disk drive's disk partitioning table area 5 may be b 'Therefore, in order to prevent the computer from being able to read any _ disc points in the disk partition table area 5, it is necessary to re-define the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ (15) continue the processing of self-test and then end;

(10) The disk separation area 5 does not exist; the thorn partition table is processed according to the step (11); in this embodiment, as shown in Fig. 4, I makes the disk division table area 5 not exist. The processing method of the disk table includes: (160) judging the disk partition table area in the main boot record (4) state 'if yes' performing step (10), otherwise = line step (161); (161) placing the main_record_disk All the magnetic partition tables of the partition 5 are copied to the backup disk partition table storage area 44, for the -10- 1326411 to use all the disk partition tables as the backup disk partition (10), and the main job __distribution partition table is cleared. That is to say; all the disks (10) of the coffee beans 5 have been cleared. Φ computer 1 when slaves are to be protected 2 because 5 has a disk partition, "b wants to save money _ phase table has been free from the computer to read the disk partition table. Also, for the avoidance table Not all the disk partition table and backup disk in 7 to 25 backup to the backup disk 2:::: points: Table: before clearing, the complex brain reads all the disk partition table of the hard disk machine [in 5mj, Electricity: cut:: new: _ according to the check program calculation and two:: (8) save area ", only then by the above, when the hard drive is the same hard" disk drive table area 5 , with the magnetic 磾 = read to / disc = = after the ',, can be super-starting (four) unified disk partition table area 5 will be emptied, so, the hard disk machine - method to complete the boot system The processing, :==Electronic -11- 1326411 into the 仵T read Figure 5, on the hard drive write = Baojing Shubei 4 ' to set the hard drive to be protected, unprotected steps, Please refer to the figures 5 and 6, which include: ” The single-hard disk menu includes all the fans on the disc, and the reader selects one of the hard drives for subsequent processing steps; ” (21) user Optional which - after hard drive, i.e., the wheel

The option, hard disk protection menu includes a boot protection hard disk - unprotect hard disk option; , (22): is a hard disk option or cancel the hard disk option is selected to protect the hard disk option, take the steps to take _ _ _ selection, step (30); ^ (23) When the secret hard disk option _ choice, _ break hard has a description of the simple 4, if the step (10)

Then, proceed to Lai 29), in this flip, whether the hard disk drive has the method of protecting the description material 4, it is judged whether the data stored in the identification mark area 40 is read; Item (24) Judging the hard disk identification code Whether it is the same as the computer network (25), otherwise, proceed to step (28); 疋 (25) Copy the disk partition table area of the main boot record 5 _ some magnetic cut table to the backup disk storage area 4 : Disk partition table; Ma Bei (26) will be the main boot record _ disc split table area 5 Sakizaki disk sub--12 ς cut table empty; (27) According to identification mark area 40, hard disk identification code storage area 42. The content of the backup disk partition table storage area 44 is newly calculated by the check program and the new value is obtained, and the value of the check value storage area 46 is used as the check code, that is, the end is completed; (28) leaving the boot protection hard The processing of the disc is finished; (29) The protection description data 4 is created on the hard disk, and then the processing is continued according to the step (10); (30) When the hard hardware item is selected, whether the hard disk drive has the protection description Data 4, if it is step (9), otherwise 'that is the end, in this - step, judge hard The method of whether the disc player has been protected is also judged whether or not the data stored in the identification mark area 40 is read; (31) The hard disk identification code is the same as the computer=code of the computer currently executing the boot code, if Carry out the step), otherwise, (10) will prepare the discs of the discs 4 qing _5, ^ = all the disc partition tables in the table area 5; ^3) delete the protection description material 4, that is, the end. When there is no miscellaneous county county shop, the machine records data 4 'directly following the first master boot record does not establish the protection description system, and when the hard disk starts to protect the startup operation system y, the main boot δ has recorded the protection has been established -13- 1326411 . Describes the data 4, so the protection description data 4 is read through the hard disk drive, which means that the hard disk drive is protected, and by determining whether the hard disk identification code is the same as the computer identification code, the current read is turned off. The computer shirt to be supplemented is a computer with a hard disk identification code. If it means 'the hard disk has not been stolen or read on the computer, it is used to protect the hard disk. - In this embodiment, the protection description material 4 is stored in the storage space of the jump area 2 of the main boot record 6 of the hard disk and the disk partition table area 5 which is not used (for example, the seventh As shown in the figure, it is stored in the boot code shutdown code storage area 3 ' computer search for the main record of the jump zone 2 and _ split zone 5 unprocessed empty _, whether it has. , in order to ride the hard disk drive has a - protection description _ 4. In addition, due to the hard disk identification code storage area, backup disk partition table storage, 44 and check code storage area 46 storage capacity is a fixed size, so, when After the computer reads the identification message, it can be calculated by the identification message, the hard disk reward 42, the backup_segment_ can 44 and the inspection start address 46 in the starting space of the main boot area, so that the computer can be hard The disc identification code storage area 42, the backup disk partition table storage area 44 and the check code storage area 46 are at the starting address of the main boot magnetic area, and the hard disk identification code, each backup disk partition table and the check code are read. Since the boot code of the main boot area 6 of the hard disk is 3, it may not be It is used to store the protection description data 4, so in the other embodiment of the present invention, the computer is in the disk division table area 5 of the hard disk, one of the spatial magnetic regions 7 is written with the protection description material 4, and the magnetic The disk partition table in the middle of the disc division/area 5 is marked as a special type and is divided in an idle disk.

-14- S 1326411

(4) The starting position of the Ma 8 2_ magnetic area (as shown in the δ diagram), so the computer passes through the lining _ disc dividing surface 5, and the shirt has a disk partitioning table marked as a special type to judge the hard shot. Whether or not there is a description of the poor material 4, and then the descriptive information of the internal disk of the employee is obtained. The identification information is read at the start position of the empty space, and the identification message can be read. In addition, since the storage capacity of the hard disk identification code storage area 42, the backup disk partition table storage area 44, and the check code storage area 46 is a fixed size, when the computer reads the identification message, it can be calculated by the job information. The hard identification code storage light 42, the age disk storage area & and the check code storage area 46 are at the starting address of the main boot magnetic area, so that the computer can be based on the hard disk identification code storage area 42, and the backup_segment The table storage area 44 and the check mark storage area 46 read the hard disk identification code backup disk partition table and the value of the check code at the start address of the free magnetic area. The above description is only a preferred embodiment of the present invention, but the features of the present invention are not limited thereto. Any one skilled in the art may, within the field of the present invention, may (4) think about changes or modifications. , can be han ^ the following patent scope of the case. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a flow chart of the operation of the present invention; Fig. 2 is a data structure diagram for protecting the description data; and Fig. 3 is a computer for the disk of the present invention. Action flow chart; ° Figure 4 is a flow chart of the operation of the present invention in the absence of a disk partition table in the county-age area; -15- s Figure 5 is a description of the computer protection of the computer of the present invention on a hard disk drive The data is used to set the hard disk drive as a protected action flow chart; the sixth figure is the computer of the present invention, the hard disk drive is set as the cancellation guarantee flow chart; the 7th county invention - the actual protection protection material A schematic diagram of the storage in the main starting magnetic zone; and, FIG. 8 is a separate embodiment of the present invention.

Protection

f magnetic zone and marking secrets __ set_distribution of the county. [Main component symbol description] M Jump zone........................ Protection description data.........4 Hard disk identification code storage area... 42 Check code storage area.........46 Main boot magnetic area............g Power-on code storage area.............. .β identification area.................. Backup disk partition table storage area..·44 Disk partition table area........... ....5 Idle magnetic zone.................. 7 # "16 -

Claims (1)

1326411 Cold rash is being replaced on page 10, the scope of application for patents: (4) L, the method of protecting the data of the hard disk drive, is turned over in a computer, the disease of the Swallow disease - the self-test of the basic output input system = after the initial touch After the money has been touched and the code is executed, it will be processed according to the following steps. · There is an interrupt instruction of the basic output input system, which is used to read the judgment and whether there is any responsibility. A hard disk drive has not been recognized; when "the hard disk drive has not been renewed, read one of the hard rhymes that have not been recognized: whether it has a hard rhyme or not - the description + Protection 4 describes (4) the wrong structure, including: identification area, - hard disk identification area, _ disk division county area and a check code storage area, wherein the identification area is used to store the representation The disc has a description of the Lin-Lang message, the hard-touch storage area, _ a hard disk identification code 'the hard disk identification and setting the hard disk machine requires a computer _ _ _ _, the backup magnetic Disc partition table storage = is used to store the backup disk partition table, and the backup disk partition Table::Magnetic:=When the machine needs to be protected, the disk of the main boot disk in the hard disk drive has the same content of the disk disk stored in the table area, and the check code storage area stores the protection description. The value obtained after the data is obtained; a τ-t# accompanied by the data, then the negative material is judged to be compatible with the computer-defined computer identification code -17- 1326411 ¢1 material month ^ day correction replacement page when It is judged that the part of the warranty data that has the computer identification code is the same as the computer identification code, so that the disk partition table is stored in the disk partition table; and it is repeatedly determined whether or not there is any hard rhyme that has not yet been confirmed. After the steps are confirmed, all the hard disk drives are confirmed, and the self-test process is continued, and then the process ends. 2. The method of claim 1, wherein the step of causing the computer to store the disk partition table in the disk partition table area is: "determining whether the master record (4) (4) is in a state of being emptied, and when judging the community _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The method of claim 2, wherein when it is determined that the disk partitioning table area in the main booting state is not in the empty state, it indicates that the main booting: the disk partitioning table area already has a disk partitioning table, All the disk partition tables for the computer to split the table area are copied to the backup disk cutter J. The alpha is backed up by all the latest _ points and difficult to check the program calculation and obtained 刭斩I ° , 're-code library storage area.' And store the new balance in the inspection 4, as stated in the request item 保 Μ 七 L L L L 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑 电脑: 7^卞"And, take the yoke of -18. 1326411 -----___ I, ' - ≫ mouth correction replacement page I within the group of tearing shirt installed in the computer more gambling users choose which one - a hard disk machine; single, ^ select it - hard sales, that is, output - hard disk protection selected early this hard disk The protection menu includes - the protection of the hard disk option; the view - take - is selected = broken (10) depends on the hard copper item silk material on the hard disk option 菖 the boot protection hard disk option is selected to have a protective description of the stomach; Whether the hard disk drive has already had the protection description information on the hard disk drive, and then whether the hard zen identification code and the computer identification code are the same; δ χ when judging all the contents of the disk partition of the hard disk identification pin computer The disk partition "^ disc partition table storage area as a backup disk partition table; table back to the record of the magnetic record clear ^ all the disk partitions in the disk partition table of the machine record re-examine the face Calculate the _ value, and store the new value in the hard disk towel inspection crane age 34 check material. 5. As stated in item 4, the other code, _ the same, leave the start protection I: The method of item 4, wherein when the hard disk player (four) is determined to be protected [Materials] then create a protection description data on the hard disk, and then record all the disk partition table in the disk partition table area. (4) Disc partition table storage area as a backup disk partition table 19-~〇4.1i < 1 year, the month is replaced by the 曰 correction replacement page step. The field judges that the 5 hp hard disk drive has protection insertion data, and judges whether the hard disk identification code is the same as the current silent computer identification code of the currently executed power; , Tian judged the hard disk identification code and the computer that currently performs the job code. The computer identification code is long, and all backup files are difficult to copy back to the disk sub-table area, and the protection description data is deleted. 8. The method of claim 7, wherein when it is determined that the hard disk drive has the touch data, and when it is determined that the computer identification code of the computer that currently performs the boot code is not the same, Leave the process of unprotecting the hard drive. The options are described, the + # is to protect the hard disk, after the item is selected, the processing steps thereof include: determining whether the hard disk drive has the protection description data; 3. The method according to the item 7, wherein If it is determined that the hard disk drive does not have the woven material, then the processing of the hard disk is taken. 10. In the method described in the claim item, the data of the miscellaneous data is stored in the space where the main job record is off and the disk is not used. Door furnace 11 such as. The method of claim 10, wherein the computer searches for the main machine, and the space between the flea and the judging face that is not in the money has the knowledge, #关_硬盘机岐有保保Describe the information. 12. As stated in the request item U, the financial Weiwei code store -20. 1326411 • Factory·, --- ' ----- month W day correction replacement page storage area, backup disk partition table storage The storage capacity of the area and check code storage area is solid. The size of the storage area can be calculated by the identification message when the computer reads the identification message. The hard disk identifies the mother storage area, the backup disk partition table storage area and the check code. The machine is in the main female collar, so that the computer can read the hard disk identification code according to the hard disk identification code storage area, the backup disk partition table storage area and the check code storage area at the starting address of the main boot magnetic area. , the value of each backup disk partition table and check code. Method id as described in claim 1 — ------The computer is in the disk partition table area of the hard disk. Among them, the free magnetic zone writes the protection description data, and the *=77 J table d Marked as a special offer, and writes the starting position of the free magnetic zone in the idle disk partition table. 14 hard disk two = area computer through the search disk ' table 'like a hard disk towel with a view of the data, into the 2 and then idle disk, the county to take care of the county description data in the beginning of the free magnetic area Position, you can read the identification message. In addition to the method described in the following 14, wherein #电脑 reads to identify another J message, after the 'received but self-reported =: table to store the second storage ^ ^ brain can be based on the hard disk identification code storage area, backup disk Take the Ma storage area at the starting address of the free magnetic area, read the value of one =, each #Disk partition table and check code. A method of protecting the information of the hard disk drive is applied to the -Electronic 21 - brain, when the computer performs - the self-test of the basic output input system and completes the initial boots of the memory, and in all the hard disk interface devices After the initialization code is executed, it will be processed according to the following steps: Call the basic output and output cap command to read all the hard disk drives; = whether there is any hard-- still green-confirmed; If there is a hard disk drive that has not been confirmed, then read one of the hard drives that have not been confirmed to be 'hardened' and lay down the hard drive. If there is a description data, the protection profile material (4) is composed of the backup magnetic碟 partition table storage area; ▲When it is judged that the hard disk drive has the protection description data, it is determined whether the protection description data has a part that is electrically connected with the computer; the field determines that the protection description data has a computer-defined setting One computer, Ma Xiangxiang.卩 则 则 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁 磁When the disk partition table area is not sad, all the disks in the disk partition table area in the boot record of the elbow child are: the cut table_zone' is used to divide the disk; the backup disk partition table is now; Table clear: All the disk partitions in the disk partition table area in the main boot record! f * and repeatedly determine if there is any - hard drive that has not been confirmed to include 13264.11 for the f month 71⁄2 correction replacement page step, until all hard drives have been confirmed, continue the self-test process, and then end. The method of claim 16, wherein when it is determined that the disk partition table area in the main boot record is in an empty state, it indicates that the disk partition table area in the master boot record has been cleared of the disk partition table. , the hard drive is no longer accessible. -twenty three-