CN110445606A - A kind of logger ruins key circuit - Google Patents
A kind of logger ruins key circuit Download PDFInfo
- Publication number
- CN110445606A CN110445606A CN201910679796.0A CN201910679796A CN110445606A CN 110445606 A CN110445606 A CN 110445606A CN 201910679796 A CN201910679796 A CN 201910679796A CN 110445606 A CN110445606 A CN 110445606A
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- China
- Prior art keywords
- key
- module
- circuit
- power supply
- ruined
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- 238000004146 energy storage Methods 0.000 claims abstract description 33
- 238000000151 deposition Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002452 interceptive effect Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
Key circuit is ruined the present invention provides a kind of logger, which includes power module, constant-current charge control module, energy-storage module, ruins the self-locking module of key output, switch module and memory module；Power module includes ruining key power supply and normal power source.The present invention realizes the control for ruining key electric current, compared to without the mode of key current control is ruined, effectively prevent it is multiple ruin interfering with each other when key target ruins key jointly, improve reliability, control the size of current for individually ruining key circuit, it is more preferable to ruin key effect.
Description
Technical field:
The invention belongs to avionics field, be related to a kind of logger ruins key circuit.
Background technique:
The logger for carrying confidential information needs to carry out the confidential information in storage medium to ruin key under special circumstances,
Control circuit will ruin key electric current access storage medium, by ruining the physical structure inside key electric current destruction storage medium, to reach
To the purpose for ruining key, to prevent the leakage of confidential information.
Existing logger ruins key, and the control for ruining key electric current is realized by the way of relay, when ruining key current source
When carrying out ruining key processing to multiple targets simultaneously, it is unable to control the size for ruining key electric current of single target, it is possible to lead to one
It point ruins that key electric current is larger, and it is too small that another part ruins key electric current, and then leads to not that target is carried out to ruin key or ruin key to be not thorough.
Summary of the invention:
The purpose of the present invention: key size of current, this hair are ruined in order to solve the disadvantage that ruin key control circuit at present and be unable to control
It is bright that a kind of control circuit for ruining key controlled current flow is provided.
Technical solution of the present invention:
In order to achieve the above objectives, the present invention provides the following technical scheme that
A kind of logger ruins key circuit, the circuit include power module, constant-current charge control module, energy-storage module,
It ruins key and exports self-locking module, switch module and memory module；Power module includes ruining key power supply and normal power source.
Further, the constant-current charge control module includes constant-current charge control circuit, the constant-current charge control electricity
Road, which is set to, ruins key power supply rear end, for controlling the size and constant-current charge control module output electric current of ruining key electric power outputting current
Direction.
Further, the energy-storage module is connected to constant-current charge control module rear end；One end is connected to constant-current charge control
The output plus terminal of molding block, the other end are connected to the negative terminal for ruining key power supply；Key energy is ruined for storing.
Further, it is described ruin key and export self-locking module and be equipped with ruin key output latching circuit, ruin key output latching circuit with
Energy-storage module is arranged in parallel, and is ruined the self-locking module of key output and connect with switch module；The key of ruining exports self-locking module for controlling
The switching of switch module processed and state locking.
Further, the switch module includes switching circuit, is connected with key power supply, normal power source and memory module is ruined
It connects.
Further, the circuit is having work step when ruining key signal as follows:
1) key electric current is ruined from key power input is ruined, and by constant-current charge control circuit, is provided energy for energy-storage module and is opened
Beginning energy storage,
2) it after the voltage of energy-storage module reaches threshold value, by memory module and energy-storage module anode and ruins key power supply negative terminal and connects
It is logical
3) after connecting, key output latching circuit is ruined by the state of locking switch circuit, back-end storage module is ruining key electric current
Under the action of, memory module is damaged.
Further, work step of circuit when without key signal is ruined is as follows:
A) circuit provides power supply by normal power source, constant-current charge control circuit, energy-storage module and ruins key output latching circuit
It does not work,
B) switching circuit by memory module power positive end and memory module power supply negative terminal respectively with normal power supply anode and just
Often power supply negative terminal connection, power supply output plus terminal and power supply output negative terminal export normal current.
Beneficial effects of the present invention: the present invention can be achieved to ruin the control of key electric current, compared to without ruining the mode of key current control,
Effectively prevent it is multiple ruin interfering with each other when key target ruins key jointly, improve reliability, control and individually ruin key circuit
It is more preferable to ruin key effect for size of current.
Detailed description of the invention:
Fig. 1 present invention ruins key current control functional schematic block diagram；
The existing circuit diagram for ruining key circuit of Fig. 2.
Wherein: 01: ruining key power positive end；02: ruining key electric current negative terminal；03: normal power supply anode；04: normal power supply negative terminal；
05: constant-current charge control circuit；06: energy-storage module；07: ruining key output latching circuit；08: switching circuit；09: memory module electricity
Source anode；10: memory module power supply negative terminal；11: memory module.
Specific embodiment:
The present invention is described in further detail with reference to the accompanying drawing,
As shown in Fig. 2, this ruins key circuit simultaneously by the existing physical circuit for ruining key electric current controlled using relay
Multiple targets are carried out to ruin key processing, the size for ruining key electric current of single target can not be controlled, may cause certain
That ruins key target ruins that key electric current is excessive or too small, too small to ruin key electric current and carry out ruining key or ruining key to target being not thorough.
As shown in Figure 1, key circuit is ruined for a kind of logger provided by the invention,
Embodiment one
The circuit includes power module, constant-current charge control module, energy-storage module, ruins the self-locking module of key output, switching molding
Block and memory module；Power Entry Module includes ruining key power supply and normal power source.
Constant-current charge control module includes constant-current charge control circuit, and the constant-current charge control circuit, which is set to, ruins key electricity
Source rear end, for controlling the size and constant-current charge control module output sense of current of ruining key electric power outputting current.
Energy-storage module is connected to constant-current charge control module rear end；One end is being connected to the output of constant-current charge control module just
End, the other end are connected to the negative terminal for ruining key power supply；Key energy is ruined for storing.
It ruins key and exports self-locking module and be equipped with and ruin key output latching circuit, ruin key output latching circuit is in parallel with energy-storage module and set
It sets, and ruins the self-locking module of key output and connect with switch module；The key of ruining exports self-locking module cutting for control switch module
It changes and state locks.
Switch module includes switching circuit, is connect with key power supply, normal power source and memory module is ruined.
Workflow is as follows:
Have ruin key signal when:
1) key electric current is ruined from key power input is ruined, and by constant-current charge control circuit, is provided energy for energy-storage module and is opened
Beginning energy storage,
2) after the voltage of energy-storage module reaches threshold value, memory module power positive end and memory module power supply negative terminal are distinguished
It is connected with the anode for ruining key power supply negative terminal and energy-storage module
3) after connecting, key output latching circuit is ruined by the state of locking switch circuit, back-end storage module is reversely ruining key
Under the action of electric current, memory module is damaged.
When without key signal is ruined:
A) circuit provides power supply by normal power source, constant-current charge control circuit, energy-storage module and ruins key output latching circuit
It does not work,
B) switching circuit by memory module power positive end and memory module power supply negative terminal respectively with normal power supply anode and just
Often power supply negative terminal connection, power supply output plus terminal and power supply output negative terminal export normal current.
Embodiment two
The circuit includes power module, constant-current charge control module, energy-storage module, ruins the self-locking module of key output, switching molding
Block and memory module；Power Entry Module includes ruining key power supply and normal power source.
Constant-current charge control module includes constant-current charge control circuit, and the constant-current charge control circuit, which is set to, ruins key electricity
Source rear end, for controlling the size and constant-current charge control module output sense of current of ruining key electric power outputting current.
Energy-storage module is connected to constant-current charge control module rear end；One end is being connected to the output of constant-current charge control module just
End, the other end are connected to the negative terminal for ruining key power supply；Key energy is ruined for storing.
It ruins key and exports self-locking module and be equipped with and ruin key output latching circuit, ruin key output latching circuit is in parallel with energy-storage module and set
It sets, and ruins the self-locking module of key output and connect with switch module；The key of ruining exports self-locking module cutting for control switch module
It changes and state locks.
Switch module includes switching circuit, is connect with key power supply, normal power source and memory module is ruined.
Workflow is as follows:
Have ruin key signal when:
1) key electric current is ruined from key power input is ruined, and by constant-current charge control circuit, is provided energy for energy-storage module and is opened
Beginning energy storage,
2) after the voltage of energy-storage module reaches threshold value, memory module power positive end and memory module power supply negative terminal are distinguished
With the anode of energy-storage module and ruin key power supply negative terminal and connect
3) after connecting, key output latching circuit is ruined by the state of locking switch circuit, back-end storage module is ruining key electric current
Under the action of, memory module is damaged.
When without key signal is ruined:
A) circuit provides power supply by normal power source, constant-current charge control circuit, energy-storage module and ruins key output latching circuit
It does not work,
B) switching circuit by memory module power positive end and memory module power supply negative terminal respectively with normal power supply anode and just
Often power supply negative terminal connection, power supply output plus terminal and power supply output negative terminal export normal current.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of logger ruins key circuit, which is characterized in that the circuit include power module, constant-current charge control module,
Energy-storage module ruins the self-locking module of key output, switch module and memory module；The power module includes ruining key power supply and normal
Power supply.
2. according to claim 1 ruin key circuit, which is characterized in that the constant-current charge control module includes constant-current charge
Control circuit, the constant-current charge control circuit, which is set to, ruins key power supply rear end, ruins the big of key electric power outputting current for controlling
Small and constant-current charge control module exports sense of current.
3. according to claim 1 ruin key circuit, which is characterized in that the energy-storage module is connected to constant-current charge control mould
Block rear end；One end is connected to the output plus terminal of constant-current charge control module, and the other end is connected to the negative terminal for ruining key power supply；For depositing
Key energy is ruined in storage.
4. according to claim 1 ruin key circuit, which is characterized in that the self-locking module of key output of ruining is exported equipped with key is ruined
Latching circuit is ruined key output latching circuit and is arranged in parallel with energy-storage module, and ruins the self-locking module of key output and connect with switch module；
The key of ruining exports switching and state locking of the self-locking module for control switch module.
5. according to claim 1 ruin key circuit, which is characterized in that the switch module includes switching circuit, and is ruined
Key power supply, normal power source and memory module connection.
6. according to claim 1 ruin key circuit, which is characterized in that the circuit is having work when ruining key signal
Steps are as follows:
1) key electric current is ruined from key power input is ruined, and by constant-current charge control circuit, is provided energy for energy-storage module and is started to store up
Can,
2) after the voltage of energy-storage module reaches threshold value, by memory module and energy-storage module anode and the connection of key power supply negative terminal is ruined
3) after connecting, key output latching circuit is ruined by the state of locking switch circuit, back-end storage module is in the work for ruining key electric current
Under, memory module is damaged.
7. according to claim 1 ruin key circuit, which is characterized in that work of circuit when without key signal is ruined
Steps are as follows:
A) circuit provides power supply by normal power source, constant-current charge control circuit, energy-storage module and ruins key output latching circuit not work
Make,
B) switching circuit supplies memory module power positive end and memory module power supply negative terminal with normal power supply anode and normally respectively
Electric negative terminal connection, power supply output plus terminal and power supply output negative terminal export normal current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910679796.0A CN110445606A (en) | 2019-07-26 | 2019-07-26 | A kind of logger ruins key circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910679796.0A CN110445606A (en) | 2019-07-26 | 2019-07-26 | A kind of logger ruins key circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110445606A true CN110445606A (en) | 2019-11-12 |
Family
ID=68431544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910679796.0A Pending CN110445606A (en) | 2019-07-26 | 2019-07-26 | A kind of logger ruins key circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110445606A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112532228A (en) * | 2020-11-12 | 2021-03-19 | 苏州长风航空电子有限公司 | Key control system is ruined to two redundancies |
| CN114448616A (en) * | 2021-12-29 | 2022-05-06 | 中国航空工业集团公司西安航空计算技术研究所 | Distributed concurrent key destroying method for large-scale comprehensive processing platform |
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| CN104123513A (en) * | 2014-07-29 | 2014-10-29 | 中国航空无线电电子研究所 | Machine-mounted high-speed large-capacity data storage system with self-destruction function and self-destruction 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 |
| US20180287479A1 (en) * | 2017-03-28 | 2018-10-04 | Wuxi Chipown Micro-Electronics Limited | Control Circuit and Control Method of Switching Power Supply |
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| US20180287479A1 (en) * | 2017-03-28 | 2018-10-04 | Wuxi Chipown Micro-Electronics Limited | Control Circuit and Control Method of Switching Power Supply |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112532228A (en) * | 2020-11-12 | 2021-03-19 | 苏州长风航空电子有限公司 | Key control system is ruined to two redundancies |
| CN112532228B (en) * | 2020-11-12 | 2022-09-20 | 苏州长风航空电子有限公司 | Key control system is ruined to two redundancies |
| CN114448616A (en) * | 2021-12-29 | 2022-05-06 | 中国航空工业集团公司西安航空计算技术研究所 | Distributed concurrent key destroying method for large-scale comprehensive processing platform |
| CN114448616B (en) * | 2021-12-29 | 2024-01-19 | 中国航空工业集团公司西安航空计算技术研究所 | Distributed concurrency key destroying method of large-scale comprehensive processing platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ma Baohua Inventor after: Zhang Shenghui Inventor after: Luan Jingming Inventor after: Zhao Jian Inventor before: Ma Baohua Inventor before: Zhang Shenghui Inventor before: Luan Jingming Inventor before: Zhao Jian |
|
| CB03 | Change of inventor or designer information | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191112 |
|
| RJ01 | Rejection of invention patent application after publication |