CN110427787A - Hard disk and its data protecting device - Google Patents
Hard disk and its data protecting device Download PDFInfo
- Publication number
- CN110427787A CN110427787A CN201910603248.XA CN201910603248A CN110427787A CN 110427787 A CN110427787 A CN 110427787A CN 201910603248 A CN201910603248 A CN 201910603248A CN 110427787 A CN110427787 A CN 110427787A
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- Prior art keywords
- hard disk
- control chip
- pcba
- paster
- conductive
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/14—Protection against unauthorised use of memory or access to memory
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
- G06F21/80—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in storage media based on magnetic or optical technology, e.g. disks with sectors
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Software Systems (AREA)
- Storage Device Security (AREA)
Abstract
The present embodiments relate to hard disk secure technical field, a kind of hard disk and its data protecting device are disclosed.The device includes: paster, for covering the PCBA of hard disk and being bonded with PCBA, at least a pair of conductive portion is provided on paster, two conductive parts in conductive part a pair of conductive portion are contacted with the different solder joints on PCBA respectively, are electrically connected between two in a pair of conductive portion conductive part by conducting wire；Tamper control chip is set on the PCBA of hard disk, tamper control chip is electrically connected with the solder joint contacted with conductive part on PCBA respectively by conducting wire, tamper controls chip, solder joint and two conductive parts and constitutes a conductive loop, tamper control chip is used to detect the current resistive value of conductive loop, the initial resistivity value saved after resistance value and hard disk assembling is compared, sends alarm signal to main control chip when current resistive value and initial resistivity value are inconsistent.The embodiment of the present invention, which is realized, protects hard disc data by physics mode.
Description
Technical field
The present embodiments relate to hard disk secure technical fields, and in particular to a kind of hard disk and its data protecting device.
Background technique
Encryption hard disk (Self-encrypting drives, SEDs) at present be commonly used to military affairs, government, secret unit,
The unit and tissue that scientific research institutions etc. have higher requirements to data safety.
In existing cipher mode, generally write-in hard disc data is write by being built in the encryption chip realization of hard drive internal
Cryptographic operation and data deciphering operates when reading data from hard disk, this mode cannot achieve encryption physically.
Summary of the invention
In view of the above problems, the embodiment of the invention provides a kind of hard disk and its data protecting devices, overcome above-mentioned ask
Inscribe or at least be partially solved the above problem.
According to an aspect of an embodiment of the present invention, a kind of hard disc data protector is provided, described device includes:
Paster is used to cover the PCBA of the hard disk and is bonded with the PCBA, in the paster bottom or runs through
Entire paster is provided at least a pair of conductive portion, two conductive parts in the pair of conductive part of conductive part respectively with it is described
Different solder joints contact on PCBA, the paster are internally provided with accommodation space, conducting wire, institute are provided in the accommodation space
It states and is electrically connected between two conductive parts in a pair of conductive portion by conducting wire；
Tamper controls chip, is set on the PCBA of the hard disk, tamper control chip by conducting wire respectively with
The solder joint electrical connection contacted with the conductive part on the PCBA, the tamper control chip, the solder joint and described two
A conductive part constitutes a conductive loop, and the tamper control chip is also used to be electrically connected with the main control chip of the hard disk；Wherein,
The tamper control chip is used to detect the current resistive value of the conductive loop, by the resistance value and hard disk groups
The initial resistivity value comparison saved after dress, when the current resistive value and the initial resistivity value are inconsistent to the master control core
Piece sends alarm signal.
In a kind of optional mode, the paster includes associated layer and superficial layer, the associated layer and the superficial layer
Between form the accommodation space, the associated layer is bonded with the PCBA.
In a kind of optional mode, the conductive part is conductive contact or metal screw hole, when the conductive part is metal
When screw hole, the paster is fixed by screw or bolt with the PCBA.
In a kind of optional mode, the paster is in quadrangle, and the conductive part is provided with two pairs, is located at described
Four angles of paster.
In a kind of optional mode, the tamper control chip is also used to detect its connection shape with the main control chip
State sends alarm signal to the main control chip when detecting that it is disconnected with the main control chip.
In a kind of optional mode, described device further includes the main control chip being set on the PCBA, and described
Tamper controls chip electrical connection, for taking safeguard measure to the data of the hard disk after receiving the alarm signal.
In a kind of optional mode, the safeguard measure includes: the read-write capability for disabling the hard disk, or destroys institute
State the data in hard disk.
In a kind of optional mode, the paster is opaque paster.
According to another aspect of an embodiment of the present invention, a kind of hard disk is provided, the hard disk includes at least:
Hard disc data protector as described above is bonded with the PCBA；
Main control chip is electrically connected with the hard disc data protector.
The embodiment of the present invention is made up of setting paster, the interior design of paster by by tamper control chip, conductive part and conducting wire
Tamper control circuit, conductive part connected with the solder joint on PCBA and tamper control chip and conducting wire constitute conductive loop,
After the device is attached on hard disk, the initial resistivity value of tamper control chip measurement conductive loop is simultaneously preserved as base
Line resistance value, in hard disk use process, tamper control chip persistently monitors the resistance value of conductive loop and compares with baseline resistance value, such as
Fruit paster, which is damaged, causes the solder joint on conductive part and PCBA not reconnect, and causes resistance value anomalous variation on conductive loop, example
Such as increasing or reducing, tamper controls chip and sends alarm, and the data starting protection measure to hard disk to the main control chip of hard disk,
The data protected in hard disk by physics mode are realized, prevent illegal user from stealing hard disc data by the solder joint on PCBA.
Above description is only the general introduction of technical solution of the embodiment of the present invention, in order to better understand the embodiment of the present invention
Technological means, and can be implemented in accordance with the contents of the specification, and in order to allow above and other mesh of the embodiment of the present invention
, feature and advantage can be more clearly understood, the followings are specific embodiments of the present invention.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 shows the part-structure block diagram of hard disc data protector provided in an embodiment of the present invention；
Fig. 2 shows the cross-sectional views of hard disc data protector provided in an embodiment of the present invention；
Fig. 3 shows the floor map of paster in the embodiment of the present invention；
Fig. 4 shows the structural representation being installed on hard disc data protector provided in an embodiment of the present invention on hard disk
Figure；
Fig. 5 shows the floor map of PCBA in the embodiment of the present invention；
Fig. 6 shows the schematic diagram of the conductive loop in the embodiment of the present invention；
Fig. 7 shows the structural block diagram of hard disk provided in an embodiment of the present invention.
Appended drawing reference:
Hard disc data protector 100；Paster 11；Accommodation space 111；Associated layer 112；Superficial layer 113；Conductive part 12；
Conducting wire 13；Tamper controls chip 14；Hard disk 200；PCBA 21；Solder joint 211；Main control chip 22；Screw 300.
Specific embodiment
The exemplary embodiment that the present invention will be described in more detail below with reference to accompanying drawings.Although showing the present invention in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the present invention without should be by embodiments set forth here
It is limited.It is to be able to thoroughly understand the present invention on the contrary, providing these embodiments, and can be by the scope of the present invention
It is fully disclosed to those skilled in the art.
Fig. 1 shows the structural block diagram of hard disc data protector provided in an embodiment of the present invention, and Fig. 2 shows the present invention
The cross-sectional view for the hard disc data protector that embodiment provides.As depicted in figs. 1 and 2, which includes paster 11, conduction
Portion 12, conducting wire 13 and tamper control chip 14.Conductive part 12 is set to 11 bottom of paster or through entire paster 11, with group
The solder joint 211 filled on printed circuit board (Printed Circuit Board+Assembly, PCBA) 21 contacts.Tamper controls core
Piece 14 is set on the PCBA 21 of hard disk.Paster 11 is internally provided with accommodation space 111, and conducting wire 13 is set to accommodation space 111
It is interior.Conductive part 12 passes through the solder joint 211 and the tamper control composition conductive loop of chip 14 on conducting wire 13 and PCBA 21.Tamper
Control chip 14 is used to detect the current resistive value of conductive loop, the initial resistivity value pair that will be saved after resistance value and hard disk assembling
Than sending alarm signal to main control chip 22 when current resistive value and initial resistivity value are inconsistent.
Paster 11 is used to cover the PCBA 21 of hard disk and is bonded with PCBA 21.Paster 11 includes associated layer 112 and surface
Layer 113, forms accommodation space 111 between associated layer 112 and superficial layer 113, associated layer 112 is bonded with PCBA 21.Paster 11 is
Opaque paster.Paster 11, which can according to need, is designed as different shape, such as quadrangle, triangle, circle etc..If hard disk
PCBA is quadrangle, then paster 11, which is preferably also, is designed as quadrangle according to the shape of PCBA 21.As shown in figure 3, in the present embodiment
Paster 11 is in convex quadrangle.
It is understood that Fig. 2 is only schematic diagram, wherein associated layer 112 is in Fig. 2 since component indicates to need not
It is bonded with PCBA 21.In embodiments of the present invention, associated layer 112 is bonded with PCBA 21.
Conductive part 12 is provided at least a pair, and two conductive parts 12 in a pair of conductive portion 12 are respectively and on PCBA 21
Different solder joints 211 contact, and are electrically connected between conductive part 12 by conducting wire 13.Conductive part 12 is provided with two pairs in the present embodiment, point
Not Wei Yu quadrangle paster 11 four angles.Generally when destroying paster 11, by first since four angles of paster 11, therefore
By the way that conductive part 12 is set to four angles, it can be detected when paster 11 most starts to be destroyed, can preferably protect hard disk
Data.Conductive part 12 is conductive contact or metal screw hole, when conductive part 12 is conductive contact, the conductive contact and PCBA 21
On solder joint 211 be in close contact, the weldering being tightly close to conductive contact by the paster 11 on conductive contact periphery on PCBA 21
On point 211；When conductive part 12 is metal screw hole, paster 11 is fixed by screw or bolt and PCBA 21.In the present embodiment,
As shown in figure 4, conductive part 12 is contacted and is fixed with the solder joint 211 on hard disk PCBA 21 by screw 300.The fixed side of screw
Formula is able to achieve preferable conductive effect, and is not easily disconnected from contact between the solder joint 211 on conductive part 12 and PCBA 21.
Specifically, can also be designed to as shown in figure 3, conductive part A, B, C, D are the electrically conductive contacts on paster 11
Conductive screw hole, A-B, C-D are the conducting wire 13 connected between two o'clock respectively.So being conductive path between A-B, and there is perseverance
Fixed resistance value, C-D are same.A, B, C, D and the circuit between them are all integrated in 11 the inside of paster, and overall structure has
The tamper paster 11 of tamper function.Tamper paster 11 also can be used rigid material and rigid patch be made either flexible paster
Paper.
Tamper control chip 14 by conducting wire 13 respectively with the solder joint 211 contacted with the conductive part 12 on PCBA 21
Electrical connection, tamper control solder joint 211 and two one conductive loops of composition of conductive parts 12 on chip 14 and PCBA 21, tamper
Control chip 14 is also used to be electrically connected with the main control chip 22 of hard disk 200；Tamper control chip 14 is for detecting conductive loop
Current resistive value, the initial resistivity value saved after resistance value and hard disk 200 are assembled compares, in current resistive value and initial resistance
Alarm signal is sent to main control chip 22 when being worth inconsistent.
As shown in figure 5, tamper control chip 14 is electrically connected by conducting wire 13 with two pairs of conductive parts 12, structure in the present embodiment
At two conductive loops.Two conductive loops are able to achieve safer data protection, any one conductive loop disconnects, all
Triggering is alerted.Solder joint a, b, c, d are electrically conductive contact points, can also be designed to that screw hole, a, b, c, d pass through solid respectively
Determine the conducting wire connection tamper control chip of resistance value.
In assembling, fixed between paster 11 and PCBA 21 with adhesive, and the position A, B, C, D spiral shell shown in Fig. 3
Adjusting screw is fixed on 200 disk body of hard disk together with a, b, c, d on PCBA 21 shown in fig. 5.Paster 11, PCBA 21 and hard disk
After 200 disk bodies assemble, A, B, C, D on paster 11, which are just connected to a, b, c, d on PCBA 21, has separately constituted A-a-B-
Two conductive loops of b and C-c-D-d, two conductive loops are all connected on tamper control chip 14.
In some embodiments, tamper control chip 14 is also used to detect the connection status of itself and main control chip 22, is examining
It measures and sends alarm signal to main control chip 22 when it is disconnected with main control chip 22.If illegal user disconnects tamper and controls core
When the connection of piece 14 and main control chip 22, it will be detected and trigger alarm, to prevent illegal user by disconnecting tamper
The mode that control chip 14 is connect with main control chip 22 avoids generating alarm when tearing paster 11, further enhances protection effect
Fruit.
In the embodiment of the present invention, alarm is except including sending alarm signal (namely the letter that prompt paster is split to main control chip
Number) except, it can also include issuing alarm sound, alarm sound can control chip 14 with tamper by adding in the present apparatus 100
The elements such as the loudspeaker or loudspeaker of electrical connection are realized.
In some embodiments, which further includes the main control chip 22 being set on PCBA 21, with tamper control
Coremaking piece 14 is electrically connected, for taking safeguard measure to the data of hard disk 200 after receiving alarm signal.The safeguard measure packet
It includes: disabling the read-write capability of hard disk, or destroy the data in hard disk.At this point, one as the device 100 of main control chip 22
Point.It is understood that main control chip 22 can also be the main control chip directlyed adopt on hard disk 200, to reduce cost.It is main
Control chip 22 takes safeguard measure that can realize by any mode in the prior art the data of hard disk 200, the present invention couple
This is without limitation.
Component in the device is directly by the power supply power supply on hard disk 200, such as passes through the power supply on hard disk 200
Chip 14 is controlled for tamper and main control chip 22 is powered.
The embodiment of the present invention is made up of setting paster, the interior design of paster by by tamper control chip, conductive part and conducting wire
Tamper control circuit, conductive part connected with the solder joint on PCBA and tamper control chip and conducting wire constitute conductive loop,
After the device is attached on hard disk, the initial resistivity value of tamper control chip measurement conductive loop is simultaneously preserved as base
Line resistance value, in hard disk use process, tamper control chip persistently monitors the resistance value of conductive loop and compares with baseline resistance value, such as
Fruit paster, which is damaged, causes the solder joint on conductive part and PCBA not reconnect, and causes resistance value anomalous variation on conductive loop, example
Such as increasing or reducing, tamper controls chip and sends alarm, and the data starting protection measure to hard disk to the main control chip of hard disk,
The data protected in hard disk by physics mode are realized, prevent illegal user from stealing hard disc data by the solder joint on PCBA.
The embodiment of the present invention increases data protection circuit on paster, it is made really to have the function of tamper, when encryption paster
When being torn or unscrewing screw, data protection circuit exception will be detected, sending alarm simultaneously can be in auto-destruct hard disk
Data are truly realized the data safety physically protected in hard disk.
Fig. 6 shows the structural block diagram of hard disk provided in an embodiment of the present invention, as shown in fig. 6, the hard disk 200 at least wraps
It includes: hard disc data protector 100 and main control chip 22 described in embodiment as above, wherein hard disc data protector 100
It is bonded with PCBA 21, main control chip 22 is electrically connected with hard disc data protector 100.
The embodiment of the present invention on hard disk PCBA by being arranged paster, there is by tamper control chip, conduction design in paster
The tamper control circuit in portion and conducting wire composition, conductive part is connected with the solder joint on PCBA and tamper controls chip and conducting wire group
At conductive loop, after which is attached on hard disk, tamper controls the initial resistivity value of chip measurement conductive loop simultaneously
Preserve as baseline resistance value, in hard disk use process, tamper control chip persistently monitor the resistance value of conductive loop and with
The comparison of baseline resistance value, causes the solder joint on conductive part and PCBA not reconnect, conductive loop is caused to power on if paster is damaged
Resistance value anomalous variation, such as increase or reduce, tamper controls chip and sends alarm to the main control chip of hard disk, and to the number of hard disk
According to starting protection measure, the data protected in hard disk by physics mode are realized, prevent illegal user from passing through the weldering on PCBA
Point steals hard disc data.
Algorithm or display are not inherently related to any particular computer, virtual system, or other device provided herein.
Various general-purpose systems can also be used together with teachings based herein.As described above, it constructs required by this kind of system
Structure be obvious.In addition, the embodiment of the present invention is also not for any particular programming language.It should be understood that can benefit
Summary of the invention described herein is realized with various programming languages, and the description done above to language-specific is to drape over one's shoulders
Reveal preferred forms of the invention.
In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that implementation of the invention
Example can be practiced without these specific details.In some instances, well known method, structure is not been shown in detail
And technology, so as not to obscure the understanding of this specification.
Similarly, it should be understood that in order to simplify the present invention and help to understand one or more of the various inventive aspects, In
Above in the description of exemplary embodiment of the present invention, each feature of the embodiment of the present invention is grouped together into individually sometimes
In embodiment, figure or descriptions thereof.However, the disclosed method should not be interpreted as reflecting the following intention: being wanted
Ask protection the present invention claims features more more than feature expressly recited in each claim.More precisely, such as
As following claims reflect, inventive aspect is all features less than single embodiment disclosed above.
Therefore, it then follows thus claims of specific embodiment are expressly incorporated in the specific embodiment, wherein each right is wanted
Ask itself all as a separate embodiment of the present invention.
Those skilled in the art will understand that can be carried out adaptively to the module in the equipment in embodiment
Change and they are arranged in one or more devices different from this embodiment.It can be the module or list in embodiment
Member or component are combined into a module or unit or component, and furthermore they can be divided into multiple submodule or subelement or
Sub-component.Other than such feature and/or at least some of process or unit exclude each other, it can use any
Combination is to all features disclosed in this specification (including adjoint claim, abstract and attached drawing) and so disclosed
All process or units of what method or apparatus are combined.Unless expressly stated otherwise, this specification is (including adjoint power
Benefit require, abstract and attached drawing) disclosed in each feature can carry out generation with an alternative feature that provides the same, equivalent, or similar purpose
It replaces.
In addition, it will be appreciated by those of skill in the art that although some embodiments in this include institute in other embodiments
Including certain features rather than other feature, but the combination of the feature of different embodiment means in the scope of the present invention
Within and form different embodiments.For example, in the following claims, embodiment claimed it is any it
One can in any combination mode come using.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and ability
Field technique personnel can be designed alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference symbol between parentheses should not be configured to limitations on claims.Word "comprising" does not exclude the presence of not
Element or step listed in the claims.Word "a" or "an" located in front of the element does not exclude the presence of multiple such
Element.The present invention can be by means of including the hardware of several different elements and being come by means of properly programmed computer real
It is existing.In the unit claims listing several devices, several in these devices can be through the same hardware branch
To embody.The use of word first, second, and third does not indicate any sequence.These words can be explained and be run after fame
Claim.Step in above-described embodiment should not be construed as the restriction to execution sequence in addition to having specified otherwise.
Claims (9)
1. a kind of hard disc data protector, which is characterized in that described device includes:
Paster is used to cover the PCBA of the hard disk and is bonded with the PCBA, in the paster bottom or through entire
Paster is provided at least a pair of conductive portion, two conductive parts in the pair of conductive part of conductive part respectively with the PCBA
On the contact of different solder joints, the paster is internally provided with accommodation space, be provided with conducting wire in the accommodation space, described one
It is electrically connected between two conductive parts in conductive part by conducting wire；
Tamper controls chip, is set on the PCBA of the hard disk, tamper control chip by conducting wire respectively with it is described
The solder joint electrical connection contacted with the conductive part on PCBA, tamper control chip, the solder joint and described two leads
Electric portion constitutes a conductive loop, and the tamper control chip is also used to be electrically connected with the main control chip of the hard disk；Wherein,
The tamper control chip is used to detect the current resistive value of the conductive loop, after the resistance value and hard disk assembling
The initial resistivity value of preservation compares, and sends out when the current resistive value and the initial resistivity value are inconsistent to the main control chip
Send alarm signal.
2. the apparatus according to claim 1, which is characterized in that the paster includes associated layer and superficial layer, the attaching
The accommodation space is formed between layer and the superficial layer, the associated layer is bonded with the PCBA.
3. the apparatus according to claim 1, which is characterized in that the conductive part is conductive contact or metal screw hole, works as institute
State conductive part be metal screw hole when, the paster is fixed by screw or bolt with the PCBA.
4. the apparatus according to claim 1, which is characterized in that the paster is in quadrangle, and the conductive part is provided with two
It is right, it is located at four angles of the paster.
5. the apparatus according to claim 1, which is characterized in that the tamper control chip is also used to detect itself and the master
The connection status for controlling chip sends alarm letter to the main control chip when detecting that it is disconnected with the main control chip
Number.
6. the apparatus according to claim 1, which is characterized in that described device further includes the master control being set on the PCBA
Chip is electrically connected, for taking after receiving the alarm signal the data of the hard disk with tamper control chip
Safeguard measure.
7. device according to claim 5 or 6, which is characterized in that the safeguard measure includes: to disable the reading of the hard disk
Function is write, or destroys the data in the hard disk.
8. the apparatus according to claim 1, which is characterized in that the paster is opaque paster.
9. a kind of hard disk, which is characterized in that the hard disk includes at least:
Such as the described in any item hard disc data protectors of claim 1-8, it is bonded with the PCBA；
Main control chip is electrically connected with the hard disc data protector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910603248.XA CN110427787A (en) | 2019-07-05 | 2019-07-05 | Hard disk and its data protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910603248.XA CN110427787A (en) | 2019-07-05 | 2019-07-05 | Hard disk and its data protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110427787A true CN110427787A (en) | 2019-11-08 |
Family
ID=68408997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910603248.XA Pending CN110427787A (en) | 2019-07-05 | 2019-07-05 | Hard disk and its data protecting device |
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| CN202159393U (en) * | 2011-06-20 | 2012-03-07 | 付家宁 | Built-in anti-disassembly anti-theft monitoring device |
| CN202487166U (en) * | 2012-03-13 | 2012-10-10 | 秦惠群 | Mobile hard disc safety support box |
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