CN108009448A - A kind of solid state hard disc data destruction method, apparatus and system - Google Patents
A kind of solid state hard disc data destruction method, apparatus and system Download PDFInfo
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- CN108009448A CN108009448A CN201810002632.XA CN201810002632A CN108009448A CN 108009448 A CN108009448 A CN 108009448A CN 201810002632 A CN201810002632 A CN 201810002632A CN 108009448 A CN108009448 A CN 108009448A
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- solid state
- hard disc
- state hard
- destroying
- ssd
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- 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
- G06F21/79—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 semiconductor storage media, e.g. directly-addressable memories
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2143—Clearing memory, e.g. to prevent the data from being stolen
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- Computer Security & Cryptography (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
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- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Storage Device Security (AREA)
Abstract
The present invention provides a kind of solid state hard disc data destruction method, apparatus and system.When needing to destroy SSD data, apparatus for destroying is electrically connected to SSD.When being destroyed to SSD data, judge whether SSD data need to destroy data by signal in place and enable signal.If desired SSD data are destroyed, then apparatus for destroying just can carry out destruction operation to the data in SSD.Whether destroy the action of judgement since apparatus for destroying exists and be placed outside the setting of SSD, it is thus possible to reduce the false triggering of SSD data destroyings.Further, since apparatus for destroying is placed outside SSD, thus SSD motherboard resources and layout area are not take up, and then do not interfere with the operation of SSD and save board area, effectively reduce cost.
Description
Technical field
The present invention relates to technical field of data processing, more particularly to a kind of solid state hard disc data destruction method, device and it is
System.
Background technology
SSD (English names：Solid State Drives；Chinese：Solid state hard disc) it is to store core with solid-state electronic
Piece array and manufactured hard disk, it is mainly by master controller, NAND flash (Chineses：Storage chip), the module such as power supply
Composition.Due to having the advantages that capacity is big, reading and writing data speed is high and anti-vibration, thus SSD is in the field such as industrial and military
Extensive application.
When SSD be applied to it is industrial and it is military when field when, SSD can store substantial amounts of critical data, such as product information, army
With map and confidential document etc..When SSD is not used, or when cannot be reused under some specific environments, to avoid machine
The leakage of the critical datas such as confidential document is, it is necessary to destroy the data in SSD, to eliminate information security hidden danger.
At present, the mode of SSD data destroyings is broadly divided into software destruction and physical destroying.Wherein, software is destroyed and refers to lead to
Cross the mode of software operation, such as the encryption key inside SSD, firmware, mapping table and data message data are deleted or
Person covers operation.After software, which destroys mode, will not damage NAND flash, but use software destruction mode destroys SSD data, SSD
Data there is a possibility that to recover.Physical destroying refers to by way of the effect damage SSD of external force, it is such as overall crush,
Strong acid solution is destroyed, high voltage burns NAND flash etc..After destroying SSD data using physical destroying mode, SSD data can not
Recover.In physical destroying mode, overall grinding mode needs the destruction equipment using specialty, and also has to operation field specific
It is required that can not quickly it carry out at the data such as computer room storage scene.Strong acid solution, which destroys mode, needs the placement strong acid inside SSD molten
Liquid bag, staves solution bag and causes strong acid to flow into SSD mainboards corrosion chip if necessary.Strong acid solution, which destroys mode, operating personnel
Certain harm, while also pollute environment.It is to set triggering to open in the inside of master controller that high voltage, which burns NAND flash modes,
Close, high voltage pulse signal is applied by trigger switch, and then perform the data destroying of NAND flash in SSD.Due to triggering
Switch is arranged on the inside of master controller, thus there is a situation where false triggering, this will cause SSD data destroyed.
The content of the invention
The present invention provides a kind of solid state hard disc data destruction method, apparatus and system, to solve existing SSD data destroying sides
Formula is because destroy SSD data there are false triggering the problem of.
The present invention provides a kind of solid state hard disc data destruction method, the described method includes：
Apparatus for destroying sends signal in place to the destruction interface of solid state hard disc, so that the destruction interface sends enabled letter
Number；
The apparatus for destroying obtains the enable signal, and is started according to the enable signal controling power conversion module,
To form high voltage；
The high voltage is sent to the destruction interface, to be sent to the solid state hard disc by the destruction interface
NAND flash；The high-tension magnitude of voltage is higher than the normal power supply scope of the NAND flash nuclear-electric power supplies.
Preferably, the apparatus for destroying sends signal in place to the destruction interface of solid state hard disc, so that the destruction interface
Sending enable signal includes：
Apparatus for destroying is electrically connected to solid state hard disc；
The apparatus for destroying sends signal in place to the destruction interface of the solid state hard disc；
Whether the destruction interface detection signal in place is effective；
If the signal in place is effective, the destruction interface sends enable signal to the apparatus for destroying.
Preferably, the apparatus for destroying obtains the enable signal, and controls power supply modulus of conversion according to the enable signal
Block starts, and is included with forming high voltage：
The apparatus for destroying obtains the enable signal, and triggers power conversion module according to the enable signal and start；
The power conversion module obtains the low-voltage destroyed interface and sent, and is high electricity by the low voltage transition
Pressure.
The present invention provides a kind of solid state hard disc data destruction device, and described device includes：The control module and electricity of electrical connection
Source modular converter, wherein,
The control module, for sending signal in place to the destruction interface of solid state hard disc, obtains enable signal, and control
Power conversion module processed starts；
The power conversion module, for receiving the low-voltage of solid state hard disc transmission, changes voltage, and sends high electricity
Pressure.
Preferably, described device further includes the display module being electrically connected with the power conversion module, the display module
For showing the working status of the apparatus for destroying.
Preferably, the display module includes LED light.
The present invention provides a kind of solid state hard disc data destroying system, and the system comprises solid state hard disc and solid state hard disc number
According to apparatus for destroying, the solid state hard disc is electrically connected with the solid state hard disc data destruction device in the solid state hard disc data destroying
Connect.
Preferably, the solid state hard disc includes power module, the destruction interface being electrically connected with the power module, Yi Jiyu
The NAND flash that the power module is electrically connected；In the solid state hard disc data destroying, the destruction interface is electrically connected respectively
Connect the control module and power conversion module in the solid state hard disc data destruction device.
Preferably, the destruction interface is electrically connected with the NAND flash.
Preferably, the solid state hard disc data destruction device is placed outside the solid state hard disc.
The technical solution that the embodiment of the present invention provides can include the following benefits：
The present invention provides a kind of solid state hard disc data destruction method, apparatus and system.The destroying method includes：To SSD
Before data are destroyed, by destroying interface electric connection apparatus for destroying and SSD.After apparatus for destroying and SSD are electrically connected, by place
Signal and enable signal judge whether SSD data need to destroy data.If desired SSD data are destroyed, then apparatus for destroying just can be right
Data in SSD carry out destruction operation.Because there is the action for whether destroying judgement in apparatus for destroying, it is thus possible to reduce SSD numbers
According to the false triggering of destruction.
It should be appreciated that the general description and following detailed description of the above are only exemplary and explanatory, not
Can the limitation present invention.
Brief description of the drawings
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the method flow diagram of solid state hard disc data destruction method provided in an embodiment of the present invention；
Fig. 2 is the structure diagram of solid state hard disc data destruction device provided in an embodiment of the present invention；
Fig. 3 is the structure diagram of the first solid state hard disc data destroying system provided in an embodiment of the present invention；
Fig. 4 is the structure diagram of second of solid state hard disc data destroying system provided in an embodiment of the present invention.
Embodiment
At present, the method for SSD data being burnt by high voltage predominantly sets trigger switch in the inside of master controller, leads to
Cross trigger switch and apply high voltage pulse signal, and then perform the data destroying of NAND flash in SSD.Since trigger switch is set
Put in the inside of master controller, thus there is a situation where false triggering, this will cause SSD data destroyed.
In view of the above-mentioned problems, the embodiment of the present invention provides a kind of solid state hard disc data destruction method, apparatus and system.This hair
The core concept for the solid state hard disc data destruction method that bright embodiment provides is：Apparatus for destroying is set, i.e. the embodiment of the present invention carries
The solid state hard disc data destruction device of confession.When SSD data are not destroyed, apparatus for destroying does not access SSD, thus can not achieve number
According to destruction.When SSD data need to destroy, apparatus for destroying is accessed into SSD, and then the internal control realization pair for passing through apparatus for destroying
The destruction of SSD data.
Specifically, it refer to the flow that attached drawing 1 shows solid state hard disc data destruction method provided in an embodiment of the present invention
Schematic diagram.From attached drawing 1, solid state hard disc data destruction method provided in an embodiment of the present invention includes：
Step S01：Apparatus for destroying sends signal in place to the destruction interface of solid state hard disc, so that the destruction interface is sent
Enable signal.
SSD is made of modules such as master controller, NAND flash, power supplys, wherein, the data that NAND flash are SSD are deposited
Store up chip.NAND flash are formed by die (Chinese translation is chip dies) encapsulation cut out from wafer, thus SSD
Data be actually stored in the die of NAND flash.To thoroughly eliminate the data stored in SSD, then need NAND
The die of flash is burnt.
, it is necessary to which apparatus for destroying is electrically connected to SSD before the data of SSD are destroyed, so that apparatus for destroying and SSD are electrically connected
It is logical.After apparatus for destroying and SSD are electrically connected, apparatus for destroying sends signal in place to SSD, and SSD data are destroyed with request.In SSD
Destroy interface arrive signal in place after, destruction interface or other hardware detections signal in place it is whether effective.After after testing, if
The signal in place is effective, then sends enable signal to apparatus for destroying from the destruction interface or other hardware for detecting the signal in place.
Step S02：The apparatus for destroying obtains the enable signal, and controls power supply modulus of conversion according to the enable signal
Block starts, to form high voltage.
Apparatus for destroying, which is got, destroys the enable signal that interface is sent, and triggers electricity in apparatus for destroying according to the enable signal
Source modular converter starts.Since apparatus for destroying and SSD are electrically connected, power conversion module has been connected to the power module in SSD, i.e.,
When apparatus for destroying and SSD are electrically connected, the power module power conversion module power supply into apparatus for destroying, and carrying in SSD
For low-voltage.Wherein, low-voltage as can be for SSD and the voltage of apparatus for destroying normal operation.Power conversion module is enabled
Start under the triggering of signal, and be high voltage by the SSD received the low voltage transitions sent, which is more than SSD
The voltage of normal work.
Step S03：The high voltage is sent to the destruction interface, to be sent to the solid-state by the destruction interface
The NAND flash of hard disk；The high-tension magnitude of voltage is higher than the normal power supply scope of the NAND flash nuclear-electric power supplies.
To thoroughly eliminate the data stored in SSD, then the die by NAND flash is needed to be burnt, and NAND
Flash includes data pin, control pin, nuclear-electric power supply power supply pin, I O power supply power supply pin, wherein, pin is NAND flash couple
Outer pin.Thus, to burn NAND flash, as long as then persistently pouring into high voltage to nuclear-electric power supply power supply pin.Specifically
The high voltage of conversion is sent to the NAND flash of solid state hard disc by ground, power conversion module by destroying interface.Due to high electricity
Normal power supply scope of the magnitude of voltage of pressure higher than the pin that even powers far above NAND flash nuclear-electric power supplies, thus be transmitted to
The high voltage of NAND flash nuclear-electric power supplies power supply pin can burn nuclear-electric power supply power supply pin after continued power, and then burn NAND
The die of flash, destroys the data stored in SSD.
In solid state hard disc data destruction method provided in an embodiment of the present invention, before being destroyed to SSD data, pass through pin
Ruin interface electric connection apparatus for destroying and SSD.After apparatus for destroying and SSD are electrically connected, the SSD being electrically connected with apparatus for destroying is prejudged
Whether need to destroy data, if SSD is judged as needing to destroy, apparatus for destroying just can carry out destruction operation to the data in SSD.By
There is the action for whether destroying judgement in apparatus for destroying, it is thus possible to reduce the false triggering of SSD data destroyings.
The embodiment of the present invention additionally provides a kind of solid state hard disc data destruction device, which includes the control mould being electrically connected
Block and power conversion module, specifically refer to attached drawing 2.Control module, the destruction for sending signal in place to solid state hard disc connect
Mouthful, enable signal is obtained, and controling power conversion module starts；Power conversion module, for receiving solid state hard disc transmission
Low-voltage, changes voltage, and sends high voltage.Specifically to refer to solid-state hard for operating process for solid state hard disc data destruction device
Disk data destruction method, details are not described herein again.
Further, solid state hard disc data destruction device provided in an embodiment of the present invention is further included is electrically connected with power conversion module
The display module connect.When the power conversion module in apparatus for destroying starts, display module display lamp is bright or brightness, and then prompts
Apparatus for destroying has started data destroying work.In embodiments of the present invention, display module uses LED light, and then by the way that lamp is bright, lamp
Go out or the working status of the form such as color change prompting apparatus for destroying.
Solid state hard disc data destruction device provided in an embodiment of the present invention can be built in SSD as a single component
In, as shown in Figure 4；Can also be made as single one such as can the component of plug be placed outside SSD, as shown in Figure 3.When
When data in SSD need not destroy, apparatus for destroying is not connected to SSD.When the data in SSD need to destroy, will can destroy
Device is connected to the destruction interface of SSD, and then destroys data in SSD by destroying interface.When apparatus for destroying is placed outside SSD,
There is no connection relation between apparatus for destroying and SSD, only can just connect apparatus for destroying and SSD when SSD data are needed and destroyed, by
This, the hidden danger of false triggering when external apparatus for destroying can eliminate SSD normal operations, and it is easy to operate, safe to use.In addition,
Since apparatus for destroying is placed outside SSD, thus be not take up SSD motherboard resources and layout area, so do not interfere with the operation of SSD with
And board area is saved, effectively reduce cost.
The embodiment of the present invention additionally provides a kind of solid state hard disc data destroying system, specifically refer to attached drawing 3,4.The present invention
The solid state hard disc data destroying system that embodiment provides includes SSD and above-mentioned solid state hard disc data destruction device, wherein, SSD
It is electrically connected with solid state hard disc data destruction device in SSD data destroyings.SSD includes power module, is electrically connected with power module
Destruction interface, and NAND flash being electrically connected with power module.Apparatus for destroying includes control module, power conversion module
And display module.
Further, electricity is burnt to avoid high-voltage electricity by destroying interface, during power module reaches NAND flash
Source module, in solid state hard disc data destroying system provided in an embodiment of the present invention, destroys interface and is also electrically connected with NAND flash.
The embodiment of the present invention additionally provides a kind of course of work of solid state hard disc data destroying system：When the number in SSD
During according to that need not destroy, apparatus for destroying is not connected to SSD.When the data in SSD need to destroy, apparatus for destroying can be connected to
The destruction interface of SSD, at this time, SSD and apparatus for destroying are electrically connected by destroying interface.After SSD and apparatus for destroying are electrically connected, destroy
Control module in device sends signal in place, and SSD data are destroyed with request.Destruction interface in SSD is to signal in place
Afterwards, destroy interface or whether other hardware detections signal in place is effective.After after testing, if the signal in place is effective, by examining
The destruction interface or other hardware for surveying the signal in place send enable signal to control module.Control module receives destruction interface
The enable signal sent, and power conversion module is triggered according to the enable signal and is started, so that power conversion module will receive
SSD send low voltage transition be high voltage.During power conversion module starts, display module energization work, and then
Show the working status of apparatus for destroying.Transformed high voltage is sent to solid state hard disc by power conversion module by destroying interface
NAND flash.Since high-tension magnitude of voltage is normal higher than even far above NAND flash nuclear-electric power supplies power supply pin
Supply district, thus the high voltage for being transmitted to NAND flash nuclear-electric power supplies power supply pin can burn nuclear-electric power supply after continued power
Power pin, and then burns the die of NAND flash, destroys the data stored in SSD.
It is required that those skilled in the art can be understood that the technology in the embodiment of the present invention can add by software
The mode of general hardware platform realize.Based on such understanding, the technical solution in the embodiment of the present invention substantially or
Say that the part to contribute to the prior art can be embodied in the form of software product, which can deposit
Storage is in storage medium, such as ROM/RAM, magnetic disc, CD, including some instructions are used so that computer equipment (can be with
Be personal computer, server, either network equipment etc.) perform some part institutes of each embodiment of the present invention or embodiment
The method stated.
Invention described above embodiment is not intended to limit the scope of the present invention..
Those skilled in the art will readily occur to the present invention its after considering specification and putting into practice the disclosure invented here
Its embodiment.This application is intended to cover the present invention any variations, uses, or adaptations, these modifications, purposes or
Person's adaptive change follows the general principle of the present invention and including undocumented common knowledge in the art of the invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the invention is not limited in the precision architecture for being described above and being shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is only limited by appended claim.
Claims (10)
- A kind of 1. solid state hard disc data destruction method, it is characterised in that the described method includes：Apparatus for destroying sends signal in place to the destruction interface of solid state hard disc, so that the destruction interface sends enable signal；The apparatus for destroying obtains the enable signal, and is started according to the enable signal controling power conversion module, with shape Into high voltage；The high voltage is sent to the destruction interface, to be sent to the NAND of the solid state hard disc by the destruction interface flash；The high-tension magnitude of voltage is higher than the normal power supply scope of the NAND flash nuclear-electric power supplies.
- 2. solid state hard disc data destruction method according to claim 1, it is characterised in that the apparatus for destroying sends in place Signal to solid state hard disc destruction interface so that it is described destruction interface send enable signal include：Apparatus for destroying is electrically connected to solid state hard disc；The apparatus for destroying sends signal in place to the destruction interface of the solid state hard disc；Whether the destruction interface detection signal in place is effective；If the signal in place is effective, the destruction interface sends enable signal to the apparatus for destroying.
- 3. solid state hard disc data destruction method according to claim 1, it is characterised in that described in the apparatus for destroying obtains Enable signal, and started according to the enable signal controling power conversion module, included with forming high voltage：The apparatus for destroying obtains the enable signal, and triggers power conversion module according to the enable signal and start；The power conversion module obtains the low-voltage destroyed interface and sent, and is high voltage by the low voltage transition.
- 4. a kind of solid state hard disc data destruction device, it is characterised in that described device includes：The control module and power supply of electrical connection Modular converter, wherein,The control module, for sending signal in place to the destruction interface of solid state hard disc, obtains enable signal, and control electricity Source modular converter starts；The power conversion module, for receiving the low-voltage of solid state hard disc transmission, changes voltage, and send high voltage.
- 5. solid state hard disc data destruction device according to claim 4, it is characterised in that described device further include with it is described The display module that power conversion module is electrically connected, the display module are used for the working status for showing the apparatus for destroying.
- 6. solid state hard disc data destruction device according to claim 5, it is characterised in that the display module includes LED Lamp.
- 7. a kind of solid state hard disc data destroying system, it is characterised in that the system comprises solid state hard disc and claim 4-6 Solid state hard disc data destruction device described in middle any one, the solid state hard disc exist with the solid state hard disc data destruction device It is electrically connected during the solid state hard disc data destroying.
- 8. solid state hard disc data destroying system according to claim 7, it is characterised in that the solid state hard disc includes power supply Module, the destruction interface being electrically connected with the power module, and the NAND flash being electrically connected with the power module；Institute When stating solid state hard disc data destroying, the control mould destroyed interface and be electrically connected in the solid state hard disc data destruction device Block and power conversion module.
- 9. solid state hard disc data destroying system according to claim 8, it is characterised in that it is described destruction interface with it is described NAND flash are electrically connected.
- 10. the solid state hard disc data destroying system according to any one in claim 7-9, it is characterised in that described solid State hard disc data apparatus for destroying is placed outside the solid state hard disc.
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| CN201810002632.XA CN108009448A (en) | 2018-01-02 | 2018-01-02 | A kind of solid state hard disc data destruction method, apparatus and system |
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| CN201810002632.XA CN108009448A (en) | 2018-01-02 | 2018-01-02 | A kind of solid state hard disc data destruction method, apparatus and system |
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| CN112883438A (en) * | 2021-03-25 | 2021-06-01 | 湖南国科微电子股份有限公司 | Solid state disk and data destruction method |
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