CN101634972A - Data protection method and data protection device of movable storage equipment and movable storage equipment - Google Patents
Data protection method and data protection device of movable storage equipment and movable storage equipment Download PDFInfo
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- CN101634972A CN101634972A CN200910091928A CN200910091928A CN101634972A CN 101634972 A CN101634972 A CN 101634972A CN 200910091928 A CN200910091928 A CN 200910091928A CN 200910091928 A CN200910091928 A CN 200910091928A CN 101634972 A CN101634972 A CN 101634972A
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Abstract
The embodiment of the invention provides a data protection method and a data protection device of movable storage equipment and the movable storage equipment. The data protection device comprises a triggering unit, a power supply unit and a processing unit, wherein the triggering unit is used for emitting a power supply request signal and an elimination request signal when the movable storage equipment meets a preset data protection triggering condition; the power supply unit is used for receiving the power supply request signal emitted by the triggering unit and supplying power to the processing unit and a storage unit of the movable storage equipment; and the processing unit is used for receiving the elimination request signal emitted by the triggering unit and eliminating data stored in the storage unit. In the embodiment, a certain triggering condition is preset in the movable storage equipment; if the condition is met, the power is supplied to the movable storage equipment and the data stored in the movable storage equipment are eliminated, therefore, the problem of leaking the data after the movable storage equipment is filched is avoided and the safety of information stored in the movable storage equipment is ensured.
Description
Technical field
The embodiment of the invention relates to the mobile storage technical field, particularly a kind of data guard method of movable storage device, device and movable storage device.
Background technology
Growing along with infotech; movable storage device is applied in people's work, the studying and living more and more widely; and the various data of storing in the movable storage device relate to the commercial interest or even the national security of individual privacy, enterprise; therefore; for the data protection of movable storage device, the information leakage that prevents movable storage device is vital.
The data guard method of the movable storage device of prior art carries out hardware encipher or software cryptography to prevent the leakage of data to the data in the movable storage device.
The inventor is in realizing process of the present invention, and find that there is following defective at least in prior art: after movable storage device was stolen, encrypted data are easy crack often, causes the leakage of the data of movable storage device storage.
Summary of the invention
The embodiment of the invention provides a kind of data guard method, device and movable storage device of movable storage device, prevents data leak, improves data security in the movable storage device.
On the one hand, the embodiment of the invention provides a kind of data protecting device of movable storage device, comprising:
Trigger element is used for when movable storage device satisfies default data protection trigger condition, sends the power supply request signal and removes request signal;
Power supply unit is used to receive the described power supply request signal that described trigger element sends, to the storage unit power supply of processing unit and described movable storage device;
Processing unit is used to receive the described removing request signal that described trigger element sends, and removes the data dump of storing in the described storage unit.
On the other hand, the embodiment of the invention also provides a kind of movable storage device, comprising: storage unit and data protecting device; Described data protecting device is used for when described movable storage device satisfies default data protection trigger condition, to described storage unit power supply, and with the data dump of storing in the described storage unit.
The embodiment of the invention also provides a kind of data guard method of movable storage device, comprising:
Detect movable storage device and whether satisfy default data protection trigger condition;
If described movable storage device satisfies described trigger condition, then power, the data dump of storing in the described storage unit to the storage unit of described movable storage device.
The data guard method of the movable storage device that the embodiment of the invention provides, device and movable storage device; certain trigger condition is set in movable storage device in advance; if satisfy trigger condition; then be the movable storage device power supply; and with the data dump of storing in the movable storage device, thereby prevented the data leak problem that causes after movable storage device is stolen.Guaranteed the movable storage device security of stored information.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the accompanying drawing of required use is done to introduce simply in will describing the embodiment of the invention below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the data protecting device of the movable storage device that Fig. 1 provides for one embodiment of the invention;
The structural representation of the data protecting device of the movable storage device that Fig. 2 provides for another embodiment of the present invention;
The structural representation of the movable storage device that Fig. 3 provides for one embodiment of the invention;
The process flow diagram of the data guard method of the movable storage device that Fig. 4 provides for one embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The structural representation of the data protecting device of the movable storage device that Fig. 1 provides for one embodiment of the invention, as shown in Figure 1, this device comprises: trigger element 10, power supply unit 20 and processing unit 30; Wherein, trigger element 10 is used for when movable storage device satisfies default data protection trigger condition, sends the power supply request signal and removes request signal; Power supply unit 20 is used to receive the power supply request signal that trigger element 10 sends, to the storage unit power supply of processing unit 30 and movable storage device; Processing unit 30 is used to receive the removing request signal that trigger element 10 sends, and removes the data of storing in the storage unit.
Concrete, the movable storage device in the embodiment of the invention can be solid state hard disc (Solid StateDisk; Hereinafter to be referred as: SSD), the situation because movable storage device may be lost or be stolen etc., and movable storage device is difficult to give for change after losing, and after losing or being stolen, the ciphered data of storing in the movable storage device storage unit is cracked by other people probably, thereby cause information leakage, therefore, can in trigger element 10, preestablish certain trigger condition, trigger element 10 is by power supply unit 20 power supplies, power supply unit 20 can adopt battery, such as common Li-Ion rechargeable battery.Trigger condition can be the time, and at this moment, this trigger element 10 can be a clock unit, as timer etc.For example: can be set " 24 hours " this section triggered time in trigger element 10 as trigger condition, finish constantly from the triggered time setting, arrive after 24 hours, trigger element 10 sends the power supply request signal and removes request signal, and can remove this trigger condition at any time in 24 hours.Like this, in case movable storage device is lost or is stolen, after then arriving the triggered time, trigger element 10 sends the power supply request signal to power supply unit 20, send the removing request signal to processing unit 30, power supply unit 20 receives after the power supply request signal, to the storage unit power supply of movable storage device, can carry out normal reading and writing data or data erase to guarantee storage unit.Power supply unit 20 receives behind the power supply request signal also to processing unit 30 power supply, makes the processing unit 30 can operate as normal.Processing unit 30 can be CPU (central processing unit) (Central Processing Unit; Hereinafter to be referred as: CPU), removing request signal delay a period of time arrival processing unit 30 that delay circuit sends trigger element 10 can be set in trigger element 10, before receiving the removing request signal, received the electric energy that power supply unit 20 provides with assurance processing unit 30, thereby guaranteed that processing unit 30 can be with the data dump of storing in the storage unit after receiving the removing request signal.Because the storage unit among the SSD is generally flash, generally adopt NAND flash among the SSD at present, the flash particle is supported erase function, NAND flash can carry out erasable at short notice, therefore, receive remove request signal after, can be at short notice with the data dump that is stored among the flash, and irrecoverable after removing.In addition, can also utilize movable storage device ambient conditions on every side as trigger condition, specifically, after movable storage device is lost or is stolen, be opened possibly or be disassembled, the brightness that can cause this movable storage device inside like this changes, therefore, when trigger element 10 detects the inner brightness of movable storage device and changes, promptly send the power supply request signal and remove request signal, to trigger power supply unit 20 be that processing unit 30 is powered, thereby makes the processing unit 30 can be with the data dump in the movable storage device.
The structural representation of the data protecting device of the movable storage device that Fig. 2 provides for another embodiment of the present invention, as shown in Figure 2, this device comprises trigger element 10, power supply unit 20 and processing unit 30; Further, trigger element 10 can comprise: detection module 101 and sending module 102; Detection module 101 is used to detect movable storage device and whether satisfies trigger condition; Sending module 102 is used for if detection module 101 detects movable storage device and satisfies trigger condition, then sends the power supply request signal and removes request signal; Trigger element 10 can also comprise: Postponement module 103 is used for the removing request signal is postponed at preset timed intervals.Detection module 101 can be real-time timepiece chip or light activated element.Power supply unit 20 can comprise: feed circuit 201 and switch 202; Feed circuit 201 are used to provide electric energy; Switch 202 is used under the control of power supply request signal closed, makes feed circuit 201 to processing unit 30 and storage unit power supply.
Concrete, detection module 101 can be for a clock unit, as real-time timepiece chip (Real-TimeClock; Hereinafter to be referred as: RTC) etc.At this moment, trigger condition is a Time Triggered, can in clock unit, set a period of time as trigger condition according to movable storage device use experience at ordinary times, finish constantly from the triggered time setting, after arriving the triggered time of setting, sending module 102 sends the power supply request signal to power supply unit 20, send the removing request signal to processing unit 30, switch 202 in the power supply unit 20 is closed after receiving the power supply request signal, thereby feed circuit 201 are storage unit in movable storage device and processing unit 30 power supplies respectively, but make storage unit be in read-write or erase status, make processing unit 30 be in normal operating conditions, the removing request signal that Postponement module 103 in the trigger element 10 sends sending module 102 postpones a period of time, the time that postpones can set in advance, before receiving the removing request signal, received the electric energy that feed circuit 201 provide to guarantee processing unit 30 by the delay of removing request signal, thereby processing unit 30 can be with the data dump of storing in the storage unit after receiving the removing request signal, and is irrecoverable after these data of storing in the movable storage device are eliminated.And set during this period of time in can remove the triggered time at any time, can not removed with the data that guarantee that movable storage device is not lost or store when stolen by accident.
Be understandable that, if movable storage device lose or stolen after be opened, may cause the temperature variation of movable storage device intraware, therefore, can also in these assemblies, temperature sensor be set, thereby trigger condition be set according to the possible range of actual temperature change as detection.
The structural representation of the movable storage device that Fig. 3 provides for one embodiment of the invention, as shown in Figure 3, this movable storage device comprises: storage unit 1 and data protecting device 2; This data protecting device 2 is used for when this movable storage device satisfies default trigger condition, to storage unit 1 power supply, with the data dump of storage in the storage unit 1.
Concrete; movable storage device situation such as may lose or be stolen; thereby cause information leakage; therefore, data protecting device 2 can be set in movable storage device, be provided with power supply unit in this device; can provide electric energy for whole movable storage device; can preestablish certain trigger condition in data protecting device 2, these trigger conditions can be removed trigger condition at any time for a period of time of setting in this section setting-up time.After arriving during this period of time, data protecting device 2 is storage unit 1 power supply in the movable storage device, but makes storage unit 1 be in read-write and erase status, makes the data of storage in the storage unit 1 are removed by data protecting device 2.SSD can be at short notice with the data dump that is stored among the NAND flash, and irrecoverable after removing.Also can be with the environmental change situation of movable storage device inside as trigger condition; specifically; after movable storage device is lost or is stolen; be opened possibly or be disassembled; can cause the variation of the brightness of this movable storage device inside like this; therefore; the brightness that can trigger condition be set to movable storage device inside changes; in data protecting device 2 light activated element being set detects in real time; when the brightness of movable storage device inside changed, trigger data protective device 2 was with the data dump in the storage unit 1.
The process flow diagram of the data guard method of the movable storage device that Fig. 4 provides for one embodiment of the invention, as shown in Figure 4, this method comprises:
Whether step 401, detection movable storage device satisfy default data protection trigger condition;
Concrete, movable storage device situation such as may lose or be stolen, thereby cause information leakage, therefore, can detect movable storage device and whether satisfy predefined trigger condition, trigger condition can be the time, also can be with the environmental change situation of movable storage device inside as trigger condition, for example: can be set as trigger condition a period of time, during this period of time can remove this trigger condition at any time.Finishing constantly from the triggered time setting, after arriving during this period of time, is the movable storage device power supply, and with the data dump of storing in the movable storage device.For SSD, storage unit is generally NAND flash, can be at short notice with the data dump that is stored among the NAND flash, and irrecoverable after removing.And the environmental change of employing movable storage device inside is as trigger condition, specifically, after movable storage device is lost or is stolen, be opened possibly or be disassembled, can cause the variation of the inner brightness of this movable storage device like this, therefore, can trigger condition be set to the variation of the inner brightness of movable storage device, brightness situation in the movable storage device is detected in real time, when the inner brightness of movable storage device changes, the data dump in the movable storage device.
The data guard method of the movable storage device that the embodiment of the invention provides, device and movable storage device; certain trigger condition is set in movable storage device in advance; trigger condition can be Time Triggered or the inner brightness triggering of movable storage device etc.; if satisfy trigger condition; then be the movable storage device power supply; make movable storage device be in normal operating conditions; with the data dump of storing in the movable storage device, thereby prevented the data leak problem that causes after movable storage device is stolen.Guaranteed the movable storage device security of stored information.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (9)
1, a kind of data protecting device of movable storage device is characterized in that, comprising:
Trigger element is used for when movable storage device satisfies default data protection trigger condition, sends the power supply request signal and removes request signal;
Power supply unit is used to receive the described power supply request signal that described trigger element sends, to the storage unit power supply of processing unit and described movable storage device;
Processing unit is used to receive the described removing request signal that described trigger element sends, and removes the data of storing in the described storage unit.
2, device according to claim 1 is characterized in that, described trigger element comprises:
Detection module is used to detect described movable storage device and whether satisfies described trigger condition;
Sending module is used for then sending described power supply request signal and described removing request signal if described detection module detects described movable storage device and satisfies described trigger condition.
3, device according to claim 1 and 2 is characterized in that, described trigger element also comprises:
Postponement module is used for described removing request signal is postponed at preset timed intervals.
4, device according to claim 3 is characterized in that, described detection module is:
Real-time timepiece chip is used to be provided with the triggered time as described trigger condition; Or
Light activated element, whether the brightness that is used to detect described movable storage device inside satisfies the brightness trigger condition.
5, device according to claim 3 is characterized in that, described power supply unit comprises:
Feed circuit are used to provide electric energy;
Switch is used for closure under the control of described power supply request signal, makes the storage unit power supply of described feed circuit to described processing unit and described movable storage device.
6, a kind of movable storage device comprises: storage unit, it is characterized in that, and also comprise as each described data protecting device in the claim 1～5; Described data protecting device is used for when described movable storage device satisfies default data protection trigger condition, to described storage unit power supply, with the data dump of storing in the described storage unit.
7, movable storage device according to claim 6 is characterized in that, described trigger condition comprises: Preset Time triggers or brightness triggers.
8, a kind of data guard method of movable storage device is characterized in that, comprising:
Detect movable storage device and whether satisfy default data protection trigger condition;
If described movable storage device satisfies described trigger condition, then power, the data dump of storing in the described storage unit to the storage unit of described movable storage device.
9, method according to claim 8 is characterized in that, described trigger condition comprises: Preset Time triggers or brightness triggers.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910091928A CN101634972A (en) | 2009-09-01 | 2009-09-01 | Data protection method and data protection device of movable storage equipment and movable storage equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910091928A CN101634972A (en) | 2009-09-01 | 2009-09-01 | Data protection method and data protection device of movable storage equipment and movable storage equipment |
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| CN101634972A true CN101634972A (en) | 2010-01-27 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436424A (en) * | 2011-10-28 | 2012-05-02 | 中国人民解放军总参谋部第五十五研究所 | Anti-disclosure copier safety electronic disc |
| CN102902633A (en) * | 2011-07-29 | 2013-01-30 | 苏州捷泰科信息技术有限公司 | Remote encryption system and remote encryption method for solid-state disk |
| CN109086632A (en) * | 2018-07-25 | 2018-12-25 | 北京智芯微电子科技有限公司 | Chip data protects system and method |
| CN110210260A (en) * | 2019-06-13 | 2019-09-06 | 深圳市风云实业有限公司 | Data destruct system and method |
| CN113556782A (en) * | 2020-04-01 | 2021-10-26 | 中移物联网有限公司 | Data transmission unit and data protection method |
-
2009
- 2009-09-01 CN CN200910091928A patent/CN101634972A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102902633A (en) * | 2011-07-29 | 2013-01-30 | 苏州捷泰科信息技术有限公司 | Remote encryption system and remote encryption method for solid-state disk |
| CN102902633B (en) * | 2011-07-29 | 2015-01-14 | 苏州捷泰科信息技术有限公司 | Remote encryption system and remote encryption method for solid-state disk |
| CN102436424A (en) * | 2011-10-28 | 2012-05-02 | 中国人民解放军总参谋部第五十五研究所 | Anti-disclosure copier safety electronic disc |
| CN102436424B (en) * | 2011-10-28 | 2014-12-24 | 中国人民解放军总参谋部第五十五研究所 | Anti-disclosure copier safety electronic disc |
| CN109086632A (en) * | 2018-07-25 | 2018-12-25 | 北京智芯微电子科技有限公司 | Chip data protects system and method |
| CN110210260A (en) * | 2019-06-13 | 2019-09-06 | 深圳市风云实业有限公司 | Data destruct system and method |
| CN113556782A (en) * | 2020-04-01 | 2021-10-26 | 中移物联网有限公司 | Data transmission unit and data protection method |
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Application publication date: 20100127 |