CN107341409A - A kind of safety door inhibition encryption system - Google Patents
A kind of safety door inhibition encryption system Download PDFInfo
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- CN107341409A CN107341409A CN201710371203.5A CN201710371203A CN107341409A CN 107341409 A CN107341409 A CN 107341409A CN 201710371203 A CN201710371203 A CN 201710371203A CN 107341409 A CN107341409 A CN 107341409A
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- 230000005611 electricity Effects 0.000 claims description 9
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- 238000010276 construction Methods 0.000 abstract description 2
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- 102100039435 C-X-C motif chemokine 17 Human genes 0.000 description 4
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- 230000009286 beneficial effect Effects 0.000 description 1
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Classifications
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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
- G06F21/71—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
- G06F21/72—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information in cryptographic circuits
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- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of safety door inhibition encryption system, including USB interface, data read module, data processing module, control module, power module and doorway machine main control module, the control module connects doorway machine main control module and data processing module respectively, and data processing module also connects USB interface by data read module.Data read module connects decryption device by USB interface in the present invention, and read the key in decryption device, after sending data processing module that processing is decrypted, it is then sent through control module to be judged, controls doorway machine main control module to allow to be written and read operation if key meets, controls doorway machine main control module not allow to be written and read operation if key is not met, it is simple in construction, cost is low, can be applied to system as doorway machine, safe.
Description
Technical field
The present invention relates to a kind of encryption system, specifically a kind of safety door inhibition encryption system.
Background technology
Electronic product is cracked by rival, and this often causes very big loss to manufacturer, for this phenomenon, a lot
Producer employs encryption technology to prevent product to be cracked.At present, most producer is using adding using software approach
Close, method mainly has, with the method for software in product using to portion of program code hide or cover up, using obscuring
Method portion of program code and data are confused, program is jumped using the method to dap, set in a program
Substantial amounts of redundancy pointer and redundant data unit etc..A small number of producers are encrypted using fairly simple hardware, and method is mainly：Exchange
Bus (bus is disorderly put), using substitute RAM, using GAL devices to software cryptography in EPROM outside device etc..
So do and also increase the difficulty for cracking product to a certain extent really, but all in all product still have it is larger can
It can be cracked, cipher round results are not ideal.
Hardware is encrypted at present and is confined to compared with in-depth study on the valuable electronic product of minority, used in such encryption
Component, circuit it is more complicated, how cheap to popular hardware unit exercise price and have price is also costly,
The encryption of effect turn into one it is in the urgent need to address the problem of.
The content of the invention
It is an object of the invention to provide a kind of safety door inhibition encryption system, is asked with solve to propose in above-mentioned background technology
Topic.
To achieve the above object, the present invention provides following technical scheme：
A kind of safety door inhibition encryption system, including USB interface, data read module, data processing module, control module,
Power module and doorway machine main control module, the control module connect doorway machine main control module and data processing module respectively, number
USB interface is also connected by data read module according to processing module.
As the further scheme of the present invention：The power module is respectively data processing module, control module and doorway
Owner controls module for power supply.
As the further scheme of the present invention：The USB interface is used to connect decryption device.
As the further scheme of the present invention：The data read module connects decryption device by USB interface, and reads
The key in device is decrypted, after sending data processing module that processing is decrypted, control module is then sent through and is judged, if key accords with
Closing then control doorway machine main control module allows to be written and read operation, controls doorway machine main control module not allow if key is not met
It is written and read operation.
As further scheme of the invention：The power module includes chip U1, chip U2, electric capacity C1, chip M1
With chip M2, electric capacity C1 one end connects electric capacity C5, input Vi+, electric capacity C2, MOSFET pipe Q1 D poles, MOSFET pipes respectively
Q2 D poles and inductance L2, electric capacity C5 other ends connection electric capacity C9 are simultaneously grounded, and the electric capacity C9 other ends connect input Vi-, electricity respectively
Hold C21, chip M1 pins 1, chip M2 pins 1, the electric capacity C1 other ends, the electric capacity C2 other ends, diode D1 positive poles, diode D2
Positive pole, diode D3 positive poles, diode D4 positive poles, resistance R1, resistance R2, electric capacity C3, electric capacity C4 and output end VO- are simultaneously grounded,
MOSFET pipes Q1 S poles connect diode D1 negative poles, diode D2 negative poles, diode D3 negative poles, diode D4 negative poles, electricity respectively
Hold C6, electric capacity C7 and inductance L1 and be grounded, the electric capacity C6 other ends connection resistance R1 other ends, electric capacity C7 other ends connection resistance R2
The other end, the inductance L1 other ends connect the electric capacity C3 other ends, the electric capacity C4 other ends, ground capacity C8, resistance R4, short rent R5 respectively
With output end VO+, resistance R4 other ends connection resistance R9, the resistance R9 other ends connect electric capacity C15, grounding resistance R11, two respectively
Pole pipe D7 positive poles, electric capacity C14, electric capacity C13 and chip U1 pins 16, the electric capacity C15 other ends connection resistance R5 other ends, electric capacity
The C14 other ends connect resistance R7, and the resistance R7 other ends connect the electric capacity C13 other ends, chip U1 pins 17, chip U1 and drawn respectively
Pin 8 and triode Q5 emitter stages, chip U1 pins 18 connect grounding resistance R6, and chip U1 pins 15 connect resistance R17, electricity respectively
R22 and electric capacity C19 is hindered, chip U1 pins 14 connect electric capacity C18, resistance R16 and resistance R21, the resistance R21 other ends point respectively
Resistance R20, chip U1 pins 13, chip U1 pins 12, the electric capacity C19 other ends and the resistance R22 other ends and it Lian Jie not be grounded, electricity
The resistance R17 other ends connect the electric capacity C18 other ends, the resistance R16 other ends, resistance R15 and power supply VCC, the resistance R15 other ends respectively
Connect the resistance R20 other ends respectively and chip U1 pins 10, chip U1 pins 11 connect resistance R19, resistance R27 and ground connection respectively
Resistance R28, triode Q5 colelctor electrode connect electric capacity C20 and are grounded, and the electric capacity C20 other ends connect resistance R29 and triode respectively
Q5 base stages, resistance R29 other ends connection power supply VCC, resistance R27 other ends connection resistance R26, resistance R26 other ends connection electricity
The R25 other ends are hindered, the resistance R19 other ends connect chip U1 pins 4 and diode D7 negative poles respectively, and chip U1 pins 1 connect respectively
Connecting resistance R3, electric capacity C10 and resistance R8, electric capacity C10 other ends connection electric capacity C12 are simultaneously grounded, and the electric capacity C12 other ends connect respectively
Connecting resistance R8, resistance R10 and chip U1 pins 3, chip U1 pins 2 connect ground capacity C11 and chip U1 pins 9 respectively, electricity
The resistance R10 other ends connect chip U1 pins 5 and electric capacity C16 and are grounded respectively, and the electric capacity C16 other ends connect chip U1 and drawn respectively
Pin 6 and power supply VCC, chip U1 pins 7 are sequentially connected resistance R14, resistance R13, and the resistance R13 other ends connect chip U2 pins 2,
Chip U2 pins 3 are grounded, and chip U2 pins 8 connect power supply VCC1, electric capacity C17 and triode Q3 colelctor electrodes, triode Q3 respectively
Base stage connects chip U2 pins 6, chip U2 pins 7 and triode Q4 base stages respectively, and triode Q4 emitter stages connect three poles respectively
Pipe Q3 emitter stages, resistance R12 and resistance R18, the resistance R12 other ends connect MOSFET pipes Q2 G poles and resistance R24 respectively, electricity
The resistance R18 other ends connect MOSFET pipes Q1 G poles and resistance R23 respectively, and the resistance R23 other ends connection resistance R24 other ends are simultaneously
Ground connection, the inductance L2 other ends connect diode D5 positive poles and diode D6 positive poles respectively, and diode D5 negative poles connect two poles respectively
Pipe D6 negative poles, the electric capacity C21 other ends, chip M1 pins 2 and chip M2 pins 2, chip M1 pins 6 connect power supply VCC1 respectively
With electric capacity C22, electric capacity C22 other ends connection chip M1 pins 7 are simultaneously grounded, and chip M2 pins 6 connect power supply VCC and electric capacity respectively
C23, electric capacity the C23 other end connection chip M2 pins 7 are simultaneously grounded.
Compared with prior art, the beneficial effects of the invention are as follows：Data read module is connected by USB interface in the present invention
Device is decrypted, and reads the key in decryption device, after sending data processing module that processing is decrypted, control module is then sent through and enters
Row judges, controls doorway machine main control module to allow to be written and read operation if key meets, doorway is controlled if key is not met
Machine main control module does not allow to be written and read operation, and simple in construction, cost is low, can be applied to system as doorway machine, safety
Property it is high.
Brief description of the drawings
Fig. 1 is the structural representation of safety door inhibition encryption system.
Fig. 2 is the circuit diagram of power module in safety door inhibition encryption system.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Refer to Fig. 1~2, in the embodiment of the present invention, a kind of safety door inhibition encryption system, including USB interface, digital independent
Module, data processing module, control module, power module and doorway machine main control module, the control module connect doorway respectively
Machine main control module and data processing module, data processing module also connect USB interface by data read module.
The power module is respectively data processing module, control module and the power supply of doorway machine main control module.
The USB interface is used to connect decryption device.
The data read module connects decryption device by USB interface, and reads the key in decryption device, send data
After processing is decrypted in processing module, it is then sent through control module and is judged, doorway machine main control module is controlled if key meets
Allow to be written and read operation, control doorway machine main control module not allow to be written and read operation if key is not met.
The power module includes chip U1, chip U2, electric capacity C1, chip M1 and chip M2, and electric capacity C1 one end connects respectively
It is another to meet electric capacity C5, input Vi+, electric capacity C2, MOSFET pipe Q1 D poles, MOSFET pipes Q2 D poles and inductance L2, electric capacity C5
End connection electric capacity C9 is simultaneously grounded, and the electric capacity C9 other ends connect input Vi-, electric capacity C21, chip M1 pins 1, chip M2 respectively
Pin 1, the electric capacity C1 other ends, the electric capacity C2 other ends, diode D1 positive poles, diode D2 positive poles, diode D3 positive poles, two poles
Pipe D4 positive poles, resistance R1, resistance R2, electric capacity C3, electric capacity C4 and output end VO- are simultaneously grounded, and MOSFET pipes Q1 S poles connect respectively
Meet diode D1 negative poles, diode D2 negative poles, diode D3 negative poles, diode D4 negative poles, electric capacity C6, electric capacity C7 and inductance L1 simultaneously
Ground connection, the electric capacity C6 other ends connection resistance R1 other ends, the electric capacity C7 other ends connection resistance R2 other ends, the inductance L1 other ends point
Not Lian Jie the electric capacity C3 other ends, the electric capacity C4 other ends, ground capacity C8, resistance R4, short rent R5 and output end VO+, resistance R4 it is another
One end connect resistance R9, the resistance R9 other ends connect respectively electric capacity C15, grounding resistance R11, diode D7 positive poles, electric capacity C14,
Electric capacity C13 and chip U1 pins 16, the electric capacity C15 other ends connection resistance R5 other ends, electric capacity C14 other ends connection resistance R7,
The resistance R7 other ends connect the electric capacity C13 other ends, chip U1 pins 17, chip U1 pins 8 and triode Q5 emitter stages, core respectively
Piece U1 pins 18 connect grounding resistance R6, and chip U1 pins 15 connect resistance R17, resistance R22 and electric capacity C19, chip U1 respectively
Pin 14 connects electric capacity C18, resistance R16 and resistance R21 respectively, and the resistance R21 other ends connect resistance R20 respectively, chip U1 draws
Pin 13, chip U1 pins 12, the electric capacity C19 other ends and the resistance R22 other ends are simultaneously grounded, and the resistance R17 other ends connect electricity respectively
It is another that the appearance C18 other ends, the resistance R16 other ends, resistance R15 and power supply VCC, resistance the R15 other end connect resistance R20 respectively
End and chip U1 pins 10, chip U1 pins 11 connect resistance R19, resistance R27 and grounding resistance R28, triode Q5 collection respectively
Electrode connects electric capacity C20 and is grounded, and the electric capacity C20 other ends connect resistance R29 and triode Q5 base stages respectively, and resistance R29 is another
End connection power supply VCC, resistance R27 other ends connection resistance R26, the resistance R26 other ends connection resistance R25 other ends, resistance
The R19 other ends connect chip U1 pins 4 and diode D7 negative poles respectively, and chip U1 pins 1 connect resistance R3, electric capacity C10 respectively
With resistance R8, the electric capacity C10 other ends connection electric capacity C12 simultaneously be grounded, the electric capacity C12 other ends connect respectively resistance R8, resistance R10 and
Chip U1 pins 3, chip U1 pins 2 connect ground capacity C11 and chip U1 pins 9 respectively, and the resistance R10 other ends connect respectively
Meet chip U1 pins 5 and electric capacity C16 and be grounded, the electric capacity C16 other ends connect chip U1 pins 6 and power supply VCC, chip respectively
U1 pins 7 are sequentially connected resistance R14, resistance R13, and resistance R13 other ends connection chip U2 pins 2, chip U2 pins 3 are grounded,
Chip U2 pins 8 connect power supply VCC1, electric capacity C17 and triode Q3 colelctor electrodes respectively, and triode Q3 base stages connect chip respectively
U2 pins 6, chip U2 pins 7 and triode Q4 base stages, triode Q4 emitter stages difference connecting triode Q3 emitter stages, resistance
R12 and resistance R18, resistance the R12 other end connect MOSFET pipes Q2 G poles and resistance R24, resistance R18 other ends difference respectively
Connection MOSFET pipes Q1 G poles and resistance R23, resistance the R23 other end connection resistance R24 other ends are simultaneously grounded, and inductance L2 is another
End connects diode D5 positive poles respectively and diode D6 positive poles, diode D5 negative poles connect diode D6 negative poles, electric capacity C21 respectively
The other end, chip M1 pins 2 and chip M2 pins 2, chip M1 pins 6 connect power supply VCC1 and electric capacity C22, electric capacity C22 respectively
Other end connection chip M1 pins 7 are simultaneously grounded, and chip M2 pins 6 connect power supply VCC and electric capacity C23 respectively, and electric capacity C23 is another
End connection chip M2 pins 7 are simultaneously grounded.
Power supply VCC voltages are 12V.
Chip U1 models UC1637.
Chip U2 models TLP250.
Chip M1 and M2 model is TMR3-4812.
Circuit of the present invention can be operated in two states, and pressure limiting pattern is operated in when generator voltage is high, and now efficiency exists
90% or so；Pass-through state is operated in when generator voltage is low, now efficiency is in 98% or so, 3000/0.98-3000=61W
Loss is very low.For unmanned plane in cruise, most of the time generator voltage is in medium voltage level, and less situation is in high pressure shape
State, circuit most of the time of the present invention can be operated in pass-through state, greatly reduce the loss of supply convertor complete machine.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (4)
1. a kind of safety door inhibition encryption system, including USB interface, data read module, data processing module, control module, electricity
Source module and doorway machine main control module, it is characterised in that the control module connects at doorway machine main control module and data respectively
Module is managed, data processing module also connects USB interface by data read module.
2. safety door inhibition encryption system according to claim 1, it is characterised in that the power module is respectively at data
Manage module, control module and the power supply of doorway machine main control module.
3. safety door inhibition encryption system according to claim 1, it is characterised in that the USB interface, which is used to connect, to be decrypted
Device.
4. safety door inhibition encryption system according to claim 3, it is characterised in that the data read module passes through USB
Interface connection decryption device, and the key in decryption device is read, after sending data processing module that processing is decrypted, it is then sent through control
Molding block is judged, controls doorway machine main control module to allow to be written and read operation if key meets, if key is not met
Control doorway machine main control module does not allow to be written and read operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710371203.5A CN107341409A (en) | 2017-05-24 | 2017-05-24 | A kind of safety door inhibition encryption system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710371203.5A CN107341409A (en) | 2017-05-24 | 2017-05-24 | A kind of safety door inhibition encryption system |
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| Publication Number | Publication Date |
|---|---|
| CN107341409A true CN107341409A (en) | 2017-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710371203.5A Pending CN107341409A (en) | 2017-05-24 | 2017-05-24 | A kind of safety door inhibition encryption system |
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| CN (1) | CN107341409A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136164A (en) * | 2011-04-02 | 2011-07-27 | 南京邮电大学 | Motor vehicle access control management method based on radio frequency identification under Internet of Things |
| CN202976284U (en) * | 2012-12-14 | 2013-06-05 | 南京邮电大学 | Door control system based on U-Key (Universal Serial Bus key) |
| CN104464057A (en) * | 2014-12-17 | 2015-03-25 | 江苏合智同创电子科技有限公司 | Hopping encoding method for car entrance guard system |
| CN205302425U (en) * | 2015-11-26 | 2016-06-08 | 江苏互联家众创空间投资有限公司 | Inn data encryption transmission system of internet peasant household |
-
2017
- 2017-05-24 CN CN201710371203.5A patent/CN107341409A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136164A (en) * | 2011-04-02 | 2011-07-27 | 南京邮电大学 | Motor vehicle access control management method based on radio frequency identification under Internet of Things |
| CN202976284U (en) * | 2012-12-14 | 2013-06-05 | 南京邮电大学 | Door control system based on U-Key (Universal Serial Bus key) |
| CN104464057A (en) * | 2014-12-17 | 2015-03-25 | 江苏合智同创电子科技有限公司 | Hopping encoding method for car entrance guard system |
| CN205302425U (en) * | 2015-11-26 | 2016-06-08 | 江苏互联家众创空间投资有限公司 | Inn data encryption transmission system of internet peasant household |
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Application publication date: 20171110 |