CN104492785A - Physical destruction system - Google Patents
Physical destruction system Download PDFInfo
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- CN104492785A CN104492785A CN201410686231.2A CN201410686231A CN104492785A CN 104492785 A CN104492785 A CN 104492785A CN 201410686231 A CN201410686231 A CN 201410686231A CN 104492785 A CN104492785 A CN 104492785A
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- destruction
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Abstract
The invention relates to a physical destruction system, including a destruction control circuit module and a current limiting protection circuit module. When the physical signal destruction is effective, a 28V high voltage large current destruction power supply is directly loaded to a storage medium NAND FLASH chip power supply base pin of a large capacity data storage module by control, and in the manner of reverse high voltage impact or positive large current heating, a storage wafer element of a NAND FLASH chip internal tube core can be completely destroyed. A current limiting protection circuit is designed in the physical destruction process to ensure the physical destruction process does not affect other circuits and only destroy storage FLASH effect. The physical destruction system can physically damage storage FLASH to achieve store data unrecoverability and ensure the complete elimination of important sensitive data in case of emergency.
Description
Technical field
The present invention relates to a kind of physical destroying system, belong to datum number storage according to security technique field.
Background technology
The object that Data Physical is destroyed is to not allow the external world see related data or permanent irrecoverable, therefore careful attention is needed, different data destroying schemes is all adopted at present at every country, method is different, mainly comprise deletion, format, the soft destruction mode such as overwritten data and big current puncture the physical destroying mode of FLASH.
There is destruction time length and can recover equivalent risk in the mode of soft destruction, in emergency situations, selects destructive expendable physical destroying to be good mode.
Summary of the invention
The object of this invention is to provide a kind of physical destroying system, there is the destruction time long problem with recovering equivalent risk in the mode in order to solve soft destruction.
For achieving the above object; the solution of the present invention comprises a kind of physical destroying system; this physical destroying system comprises destroys control circuit module and current-limiting protection circuit module; destroy control circuit module comprise destruction controller and destroy time control switch; input power destroys time control switch by current-limiting protection circuit model calling, destroys controller control connection and destroys time control switch.
Destroy control circuit module and also comprise a relay, the control end of relay connects destroys enable signal, and input power connects current-limiting protection circuit module by relay.
Destroy control circuit module and also comprise a voltage conversion circuit module, input power destroys controller by voltage conversion circuit model calling.
The present invention adopts electric energy to destroy mode, by giving the reverse high-voltage impact of data memory module or forward big current, the storage wafer gathered by data memory module is thoroughly damaged, the destruction time is short, and thorough destruction has been carried out to element, there is not the recovery of data, ensure that security greatly.
In addition; physical destroying system of the present invention comprises two parts: destroy control circuit, current-limiting protection circuit; two kinds of circuit cooperatively interact and realize destroying data memory module; reach the object of protection information safety; current-limiting protection circuit ensures in Destruction and after destroying simultaneously; other circuit of module are unaffected, serve very large protective effect to other modules, ensure that the normal work of other modules.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention structural representation.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
A kind of physical destroying system; this physical destroying system comprises destroys control circuit module and current-limiting protection circuit module; destroy control circuit module comprise destruction controller and destroy time control switch; input power destroys time control switch by current-limiting protection circuit model calling, destroys controller control connection and destroys time control switch.
Based on above technical scheme, by reference to the accompanying drawings, provide with next detailed description of the invention.
General destruction supply voltage is 28V, as shown in Figure 1, destroy control circuit and comprise one is ruined key power supply relay for break-make 28V, a 28V turns the change-over circuit of 3.3V, one controls destruction controller---the single-chip microcomputer destroyed, and one is destroyed time controling MOS switch; Current-limiting protection circuit comprises the invariable power device of a powerful constant-current voltage-stabilizing.
28V ruins key power supply turns 3.3V change-over circuit connection single-chip microcomputer by 28V, and for single-chip microcomputer provides working power, Single-chip Controlling connects destroys time controling MOS switch, for controlling the break-make of this switch.
Destroy the control end that enable signal is connected to relay; 28V ruins key power supply connects current-limiting protection circuit input by relay, and the output of current-limiting protection circuit is connected in the storage medium NAND FLASH chip power pin of mass data storage module by destroying time controling MOS switch.
First; enable signal is destroyed to one, relay; control relay must conduct; 28V ruins key power supply is loaded into current-limiting protection circuit input by relay; output is connected in the storage medium NAND FLASH chip power pin of mass data storage module by destroying time controling MOS switch, and whether destruction time controling MOS switch plays control and destroy.
On the other hand, 28V ruins the change-over circuit that key power supply turns 3.3V by 28V provides working power to single-chip microcomputer, setting program in single-chip microcomputer, controls to destroy time controling MOS switch conduction and shutoff, the different destruction time also can be set: 500ms, 1s, 2s, 4s, 8s, 10s etc.
After Single-chip Controlling destroys time controling MOS switch conduction, 28V ruins key power supply and is directly loaded on FLASH, adopts the mode of reverse high-voltage impact or the heating of forward big current, the storage wafer of NAND FLASH chip internal die is thoroughly damaged.
Constant power source in current-limiting protection circuit ensures in Destruction and after destroying, and other circuit modules are unaffected, serve very large protective effect to other modules, ensure that the normal work of other modules.
Under destroying supply voltage 28V, the program that destruction electric current/destruction time can be designed by single-chip microcomputer is arranged as requested, such as: at destruction electric current 0.65A, under the condition of destruction time 500ms, realize destroying, after destroying, FLASH has obvious Durchgangshohle phenomenon, cannot recover.
Be presented above concrete embodiment, but the present invention is not limited to described embodiment.Basic ideas of the present invention are above-mentioned basic scheme, and for those of ordinary skill in the art, according to instruction of the present invention, designing the model of various distortion, formula, parameter does not need to spend creative work.The change carried out embodiment without departing from the principles and spirit of the present invention, amendment, replacement and modification still fall within the scope of protection of the present invention.
Claims (3)
1. a physical destroying system; it is characterized in that; described physical destroying system comprises destroys control circuit module and current-limiting protection circuit module; described destruction control circuit module comprises destroys controller and destroys time control switch; input power destroys time control switch by current-limiting protection circuit model calling, destroys controller control connection and destroys time control switch.
2. physical destroying system according to claim 1; it is characterized in that; described destruction control circuit module also comprises a relay, and the control end of described relay connects destroys enable signal, and described input power connects current-limiting protection circuit module by described relay.
3. physical destroying system according to claim 2, is characterized in that, described destruction control circuit module also comprises a voltage conversion circuit module, and described input power destroys controller by described voltage conversion circuit model calling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410686231.2A CN104492785B (en) | 2014-11-24 | 2014-11-24 | Physical destruction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410686231.2A CN104492785B (en) | 2014-11-24 | 2014-11-24 | Physical destruction system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104492785A true CN104492785A (en) | 2015-04-08 |
| CN104492785B CN104492785B (en) | 2017-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410686231.2A Active CN104492785B (en) | 2014-11-24 | 2014-11-24 | Physical destruction system |
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| CN (1) | CN104492785B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105095797A (en) * | 2015-09-21 | 2015-11-25 | 中国船舶重工集团公司第七一七研究所 | Physical self-destruct control circuit of electronic data storage unit |
| CN105513641A (en) * | 2015-12-16 | 2016-04-20 | 鸿秦（北京）科技有限公司 | Safety protection circuit |
| CN106469278A (en) * | 2015-08-20 | 2017-03-01 | 陕西千山航空电子有限责任公司 | A kind of unmanned plane FDR system flying quality pin decryption method |
| CN106951188A (en) * | 2017-03-13 | 2017-07-14 | 西北工业大学 | A kind of method of quick low-power consumption physical destroying electric board storage information |
| CN108985110A (en) * | 2018-08-31 | 2018-12-11 | 太原禾木科技有限公司 | A kind of method and apparatus that concerning security matters carrier information is quickly destroyed |
| CN109670348A (en) * | 2019-01-31 | 2019-04-23 | 西安奇维科技有限公司 | The highly reliable universal solid state hard disk rapid physical of one kind destroys circuit and method |
| CN109877133A (en) * | 2019-01-24 | 2019-06-14 | 中国航空工业集团公司洛阳电光设备研究所 | Data destroying system and its implementation based on miniaturization single-chip storage dish |
| CN110162985A (en) * | 2019-05-09 | 2019-08-23 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of data of airborne task system ruin key design method |
| CN115203759A (en) * | 2022-09-09 | 2022-10-18 | 中勍科技股份有限公司 | Low-cost high-reliability key destruction circuit |
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| CN106469278A (en) * | 2015-08-20 | 2017-03-01 | 陕西千山航空电子有限责任公司 | A kind of unmanned plane FDR system flying quality pin decryption method |
| CN105095797A (en) * | 2015-09-21 | 2015-11-25 | 中国船舶重工集团公司第七一七研究所 | Physical self-destruct control circuit of electronic data storage unit |
| CN105513641A (en) * | 2015-12-16 | 2016-04-20 | 鸿秦（北京）科技有限公司 | Safety protection circuit |
| CN105513641B (en) * | 2015-12-16 | 2019-08-02 | 鸿秦（北京）科技有限公司 | A kind of safety protective circuit |
| CN106951188A (en) * | 2017-03-13 | 2017-07-14 | 西北工业大学 | A kind of method of quick low-power consumption physical destroying electric board storage information |
| CN108985110A (en) * | 2018-08-31 | 2018-12-11 | 太原禾木科技有限公司 | A kind of method and apparatus that concerning security matters carrier information is quickly destroyed |
| CN109877133A (en) * | 2019-01-24 | 2019-06-14 | 中国航空工业集团公司洛阳电光设备研究所 | Data destroying system and its implementation based on miniaturization single-chip storage dish |
| CN109670348A (en) * | 2019-01-31 | 2019-04-23 | 西安奇维科技有限公司 | The highly reliable universal solid state hard disk rapid physical of one kind destroys circuit and method |
| WO2020155701A1 (en) * | 2019-01-31 | 2020-08-06 | 西安奇维科技有限公司 | High-reliability universal solid-state hard disk rapid physical destruction circuit and method |
| CN110162985A (en) * | 2019-05-09 | 2019-08-23 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of data of airborne task system ruin key design method |
| CN115203759A (en) * | 2022-09-09 | 2022-10-18 | 中勍科技股份有限公司 | Low-cost high-reliability key destruction circuit |
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