CN106446654B - Input output device of computer partition method based on fingerprint recognition - Google Patents
Input output device of computer partition method based on fingerprint recognition Download PDFInfo
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- CN106446654B CN106446654B CN201610921536.6A CN201610921536A CN106446654B CN 106446654 B CN106446654 B CN 106446654B CN 201610921536 A CN201610921536 A CN 201610921536A CN 106446654 B CN106446654 B CN 106446654B
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005192 partition Methods 0.000 title claims abstract description 12
- 238000002955 isolation Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000013475 authorization Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
-
- 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
- G06F21/82—Protecting input, output or interconnection devices
Abstract
Input output device of computer partition method based on fingerprint recognition, belongs to computer security technical field, and in particular to a kind of input output device of computer isolating device and method.It solves active computer input-output equipment to be directly plugged on the USB interface of computer, directly main frame is operated, the problem of safety difference.Partition method of the present invention is realized based on isolating device, main frame is isolated between physical layer and input-output equipment, the input-output equipment permitted without permission is disconnected, prevents illegal user from directly operating to main frame by being directly connected to input-output equipment to reach.Legitimate user is identified by fingerprint module, and legitimate user is allow to operate the input-output equipment authorized to it.The present apparatus mainly realizes equipment access control, and user uses control.The present invention is suitable for computer hardware connection encryption.
Description
Technical field
The invention belongs to computer security technical fields, and in particular to a kind of input output device of computer partition method.
Background technique
The input-output equipment of computer at present, such as keyboard, mouse, display, speaker, printer and equipment are straight
It connected data line and is connected to main frame.But with the fast development of information security technology, for some security grades
Relatively high main frame, these input-output equipment that can be directly connected to main frame can be directly to calculating owner
Machine is operated, and there are biggish security risk, illegal user, which is such as not necessarily to login of operating system, to shut down main frame
Or restart, the program interrupt for running it；The mode of being directly connected to can not prevent from disguising oneself as the USB hack tool of keyboard or mouse
Attack, so that illegal user is attacked main frame by the keyboard and mouse of camouflage, or by restarting the USB in BIOS
Boot reboots operating system of the main frame into USB hack tool；The mode of being directly connected to is unable to control without permission
The access main frame of the USB storage device of license, allows illegal user to replicate the data information in main frame；Directly
The output that connection type is unable to control the equipment such as USB printer is connect, prints out illegal user in main frame
The security risks such as data information.
Summary of the invention
The present invention is in order to solve active computer input-output equipment and directly be plugged on the USB interface of computer, directly
It connects and main frame is operated, the problem of safety difference proposes a kind of computer input and output based on fingerprint recognition
Equipment blocking method.
Input output device of computer partition method of the present invention based on fingerprint recognition, this method are known based on fingerprint
Other input output device of computer isolating device realizes that the device includes shell 1, fingerprint identification device 2, No.1 connection control
Switch 3, microcontroller 4, usb expansion card 5, n No. three connection control switches 6, n usb expansion interface 7, the output of external video
The connection control switch 9 of port 8, two, external audio frequency output port 10 and No. four connection control switches 15；
Fingerprint identification device 2, n usb expansion interface 7, external video-out port 8 and external audio frequency output port 10 are equal
It is mounted in the side of shell 1, video input port 12, USB host port 14 and audio input port 13 are also mounted in shell 1
On, the video input port 12, USB host port 14 and audio input port 13 by data line respectively with main frame
Video-out port, USB port connects with audio output port；Fingerprint identification device 2 is used to acquire identification user of service's
Finger print information, and finger print information is sent to microcontroller 4；
No.1 connects control switch 3, microcontroller 4, usb expansion card 5, n No. three connection control switch 6, two connections
Control switch 9 and No. four connection control switches 15 are arranged in shell 1；
No.1 connection control switch 3 is connected between video input port 12 and external video-out port 8, No.1 connection
The video output switch control signal output of the switch control signal input terminal connection microcontroller 4 of control switch 3；
No. two connection control switches 9 are connected between audio input port 13 and external audio frequency output port 10, No. two companies
Connect the audio output switch control signal output end of the switch control signal input terminal connection microcontroller 4 of control switch 9；
One end of n No. three connection control switches 6 is connect with the signal input part of n usb expansion interface 7 respectively, and n three
The other end of number connection control switch 6 connect with the n of usb expansion card 5 from port respectively, and n No. three connect control switches 6
Switch control signal input terminal is separately connected the switch control signal output end of n usb expansion interface of microcontroller 4；
The master port of usb expansion card 5 connects the common end of No. four connection control switches 15, No. four connections control switch
15 be four dpdt double-pole double-throw (DPDT) type relays, No. four connection control switches 15 break contacts connection microcontroller 4 USB port, No. four
Connect the USB host port 14 of the moving together contact connection host of control switch 15；The switch control letter of No. four connection control switches 15
The USB switch control signal output end of number input terminal link microcontroller 4；
The fingerprint recognition signal input part of the fingerprint recognition signal output end connection microcontroller 4 of fingerprint identification device 2；And
The side of shell 1 is arranged in the fingerprint collecting face of fingerprint identification device.
The method of input output device of computer isolation based on fingerprint recognition, the specific steps of this method are as follows:
Step 1: carrying out typing, storage to user's fingerprint using fingerprint identification device 2, and by user's finger print data
It is sent to microcontroller 4, microcontroller 4 authorizes user using the port of computer；
What the microcontroller 4 authorized user using the port of computer method particularly includes:
After microcontroller 4 receives user's fingerprint, set according to access right of the finger print data to the user,
The access right are as follows: whether allow using external video-out port 8, external audio frequency output port 10 or usb expansion interface
7；Each user is stored using the identification code of external equipment simultaneously；
Step 2: working as user when user carries out fingerprint typing identification using fingerprint identification device 2 using before computer
After carrying out fingerprint recognition successful match, if authorized user, the finger print data of successful match is sent to microcontroller 4, micro-control
Device 4 processed sets the access right of user according to step 1, and n No. three connection control switches 6 of control, No.1 connect control switch
One or more of 3 and No. two connection control switches 9 close the switch；When user carry out fingerprint recognition matching it is unsuccessful, then
Fingerprint identification device 2 sends fingerprint recognition failure signal to microcontroller, and external equipment cannot connect to main frame；
Step 3: when external equipment accesses external video-out port 8, external audio frequency output port 10 or n usb expansion
When one or more in interface 7, microcontroller 4 is by No. three connection control switches 6 and usb expansion card 5 to being connected with outside
The interface of equipment sends driving signal, reads the exclusive identification code and device type of connected external equipment, judges the mark
Whether code matches with the equipment exclusive identification code of user storage within the microcontroller, if matching, the control of microcontroller 4 four
Number connection control switch closure, external equipment connect with main frame, identification of the completion to input output device of computer, if
It mismatches, then microcontroller 4 connects in 3, No. two connection control switches 9 of control switch or No. three connection control switches 6 to No.1
Multiple transmissions disconnect control signal, realize the isolation to the peripheral connection port of unauthorized.
Before user uses the present apparatus, typing fingerprint need to be acquired in advance.User is collected and recorded by present apparatus fingerprint module
Fingerprint, microcontroller carries out authorization mechanism to user according to the user fingerprints of preparatory typing, according to the difference etc. of user's authorization
Input-output equipment corresponding with its authorization privilege grade can be used in grade, control authorized user.Effectively raise computer
Safety.
Isolating device of the present invention allow main frame carried out between physical layer and input-output equipment every
From the input-output equipment that disconnection is permitted without permission prevents illegal user by being directly connected to input-output equipment to reach
Directly main frame is operated.By fingerprint module identify legitimate user, allow legitimate user operate it is authorized it is defeated
Enter output equipment.The present apparatus mainly realizes equipment access control, and user uses control.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of shell of the present invention；
Fig. 2 is the functional block diagram of the input output device of computer isolating device based on fingerprint recognition.
Specific embodiment
Specific embodiment one illustrates present embodiment in conjunction with Fig. 1 and 2, based on fingerprint recognition described in present embodiment
Input output device of computer partition method, input output device of computer isolating device of this method based on fingerprint recognition be real
Existing, which includes shell 1, fingerprint identification device 2, No.1 connection control switch 3, microcontroller 4, usb expansion card 5, n three
Number connection control switch 6, n usb expansion interface 7, external video-out port 8, No. two connections control switches 9, external audio frequency
Output port 10 and No. four connection control switches 15；
Fingerprint identification device 2, n usb expansion interface 7, external video-out port 8 and external audio frequency output port 10 are equal
It is mounted in the side of shell 1, video input port 12, USB host port 14 and audio input port 13 are also mounted in shell 1
On, the video input port 12, USB host port 14 and audio input port 13 by data line respectively with main frame
Video-out port, USB port connects with audio output port；Fingerprint identification device 2 is used to acquire identification user of service's
Finger print information, and finger print information is sent to microcontroller 4；
No.1 connects control switch 3, microcontroller 4, usb expansion card 5, n No. three connection control switch 6, two connections
Control switch 9 and No. four connection control switches 15 are arranged in shell 1；
No.1 connection control switch 3 is connected between video input port 12 and external video-out port 8, No.1 connection
The video output switch control signal output of the switch control signal input terminal connection microcontroller 4 of control switch 3；
No. two connection control switches 9 are connected between audio input port 13 and external audio frequency output port 10, No. two companies
Connect the audio output switch control signal output end of the switch control signal input terminal connection microcontroller 4 of control switch 9；
One end of n No. three connection control switches 6 is connect with the signal input part of n usb expansion interface 7 respectively, and n three
The other end of number connection control switch 6 connect with the n of usb expansion card 5 from port respectively, and n No. three connect control switches 6
Switch control signal input terminal is separately connected the switch control signal output end of n usb expansion interface of microcontroller 4；
The master port of usb expansion card 5 connects the common end of No. four connection control switches 15, No. four connections control switch
15 be four dpdt double-pole double-throw (DPDT) type relays, No. four connection control switches 15 break contacts connection microcontroller 4 USB port, No. four
Connect the USB host port 14 of the moving together contact connection host of control switch 15；The switch control letter of No. four connection control switches 15
The USB switch control signal output end of number input terminal link microcontroller 4；
The fingerprint recognition signal input part of the fingerprint recognition signal output end connection microcontroller 4 of fingerprint identification device 2；And
The side of shell 1 is arranged in the fingerprint collecting face of fingerprint identification device.
The method of input output device of computer isolation based on fingerprint recognition, the specific steps of this method are as follows:
Step 1: carrying out typing, storage to user's fingerprint using fingerprint identification device 2, and by user's finger print data
It is sent to microcontroller 4, microcontroller 4 authorizes user using the port of computer；
What the microcontroller 4 authorized user using the port of computer method particularly includes:
After microcontroller 4 receives user's fingerprint, set according to access right of the finger print data to the user,
The access right are as follows: whether allow using external video-out port 8, external audio frequency output port 10 or usb expansion interface
7；Each user is stored using the identification code of external equipment simultaneously；
Step 2: working as user when user carries out fingerprint typing identification using fingerprint identification device 2 using before computer
After carrying out fingerprint recognition successful match, if authorized user, the finger print data of successful match is sent to microcontroller 4, micro-control
Device 4 processed sets the access right of user according to step 1, and n No. three connection control switches 6 of control, No.1 connect control switch
One or more of 3 and No. two connection control switches 9 close the switch；When user carry out fingerprint recognition matching it is unsuccessful, then
Fingerprint identification device 2 sends fingerprint recognition failure signal to microcontroller, and external equipment cannot connect to main frame；
Step 3: when external equipment accesses external video-out port 8, external audio frequency output port 10 or n usb expansion
When one or more in interface 7, microcontroller 4 is by No. three connection control switches 6 and usb expansion card 5 to being connected with outside
The interface of equipment sends driving signal, reads the exclusive identification code and device type of connected external equipment, judges the mark
Whether code matches with the equipment exclusive identification code of user storage within the microcontroller, if matching, the control of microcontroller 4 four
Number connection control switch closure, external equipment connect with main frame, identification of the completion to input output device of computer, if
It mismatches, then microcontroller 4 connects in 3, No. two connection control switches 9 of control switch or No. three connection control switches 6 to No.1
Multiple transmissions disconnect control signal, realize the isolation to the peripheral connection port of unauthorized.
Apparatus of the present invention can make unwarranted input-output equipment that can not carry out physical connection with main frame, make
It can not operation input output equipment by the user of fingerprint recognition.Equipment access control may be implemented in the present apparatus and user uses
Control, security risk caused by preventing because of input-output equipment.
Specific embodiment two, present embodiment be to described in specific embodiment one based on the computer of fingerprint recognition
The further explanation of input-output equipment partition method, No.1 connect control switch 3, n No. three connection control switches 6 and No. two
Connecting control switch 9 is single-pole single-throw switch (SPST).
Computer based on fingerprint recognition described in specific embodiment three, present embodiment and specific embodiment one is defeated
The difference for entering output equipment partition method is that it replaces fingerprint identification device 2, institute using NFC reader or RFID card reader
State NFC reader or RFID card reader nfc card or RFID card for identification, the signal output of NFC reader or RFID card reader
The card recognition signal input part of end connection microcontroller 4.
When USB device accesses main frame by the present apparatus, the microcontroller 4 of the present apparatus by usb expansion card 5,
No. three connection control switches 6 and No. four connection control switches 15 meet the USB for the microcontroller 4 that USB device is connected to the present apparatus
Mouthful, microcontroller 4 loads USB device driving, reads UUID (the Universally Unique of USB device type and USB device
Identifier, Universally Unique Identifier), microcontroller passes through the UUID for judging USB device type and USB device, identifies it
It whether is authorization credible equipment, if this USB device is authorization credible equipment, microcontroller 4 passes through usb expansion card 5, three connections
USB device is connected to the USB host port 14 of main frame by control switch 6 and No. four connection control switches 15, if this USB is set
Standby is unauthorized credible equipment, then can not connect.
Before user uses the present apparatus, typing fingerprint need to be acquired in advance.User is collected and recorded by present apparatus fingerprint module
Fingerprint, microcontroller carries out authorization mechanism to user according to the user fingerprints of preparatory typing, according to the difference etc. of user's authorization
Input-output equipment corresponding with its authorization privilege grade can be used in grade, control authorized user.
User using when first log into fingerprint, if it is unauthorized user, then disconnect all videos, audio, USB input it is defeated
Equipment out；If it is authorized user, then present apparatus controller will be corresponding with its authorization privilege by control connection control switch
Input-output equipment is connected to main frame, makes authorized user that input-output equipment corresponding with its authorization privilege can be used,
But present apparatus controller will not be connected beyond its corresponding input-output equipment of authorization privilege grade, as certain user only so that
With keyboard and mouse, but the data information in USB storage device duplication main frame cannot be used.
Present apparatus prefixed time interval, if period is without operation, then user needs fingerprint login again, if stepped on without fingerprint again
Land then disconnects all input/output units.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (3)
1. the input output device of computer partition method based on fingerprint recognition, this method is inputted based on the computer of fingerprint recognition
Output equipment isolating device realizes that the device includes shell (1), fingerprint identification device (2), No.1 connection control switch (3), micro-
Controller (4), usb expansion card (5), n No. three connection control switches (6), n usb expansion interface (7), the output of external video
Port (8), No. two connection control switches (9), external audio frequency output port (10) and No. four connection control switches (15)；
Fingerprint identification device (2), n usb expansion mouth (7), external video-out port (8) and external audio frequency output port (10)
It is mounted in the side of shell (1), video input port (12), USB host port (14) and audio input port (13) also build-in
On shell (1), the video input port (12), USB host port (14) and audio input port (13) pass through data
Line is connect with the video-out port of main frame, USB port and audio output port respectively；Fingerprint identification device (2) is used
In the finger print information of acquisition identification user of service, and finger print information is sent to microcontroller (4)；
No.1 connects control switch (3), microcontroller (4), usb expansion card (5), n No. three connection control switches (6), No. two
Connection control switch (9) and No. four connection control switches (15) are arranged in shell (1)；
No.1 connection control switch (3) is connected between video input port (12) and external video-out port (8), and No.1 connects
Connect the video output switch control signal output of switch control signal input terminal connection microcontroller (4) of control switch (3)；
No. two connection control switches (9) are connected between audio input port (13) and external audio frequency output port (10), and No. two
Connect the audio output switch control signal output of switch control signal input terminal connection microcontroller (4) of control switch (9)
End；
One end of n No. three connections control switch (6) is connect with the signal input part of n usb expansion interface (7) respectively, and n three
The other end of number connection control switch (6) connect with the n of usb expansion card (5) from port respectively, and n No. three connections, which control, opens
The switch control signal for the n usb expansion mouth that the switch control signal input terminal for closing (6) is separately connected microcontroller (4) exports
End；
The master port of usb expansion card (5) connects the common end of No. four connections control switch (15), No. four connections control switch
It (15) is four dpdt double-pole double-throw (DPDT) type relays, the end USB of break contact connection microcontroller (4) of No. four connections control switch (15)
Mouthful, the USB port of the moving together contact connection host of No. four connections control switch (15)；The switch of No. four connections control switch (15)
Control signal input links the USB switch control signal output end of microcontroller (4)；
The fingerprint recognition signal input part of fingerprint recognition signal output end connection microcontroller (4) of fingerprint identification device (2)；And
Side of the fingerprint collecting face setting of fingerprint identification device in shell (1)；
The method of input output device of computer isolation based on fingerprint recognition, the specific steps of this method are as follows:
Step 1: carrying out typing, storage to user's fingerprint using fingerprint identification device (2), and user's finger print data is sent out
It send to microcontroller (4), microcontroller (4) authorizes user using the port of computer；
What the microcontroller (4) authorized user using the port of computer method particularly includes:
After microcontroller (4) receives user's fingerprint, set according to access right of the finger print data to the user, institute
State access right are as follows: whether allow to connect using external video-out port (8), external audio frequency output port (10) or usb expansion
Mouth (7)；Each user is stored using the identification code of external equipment simultaneously；
Step 2: when user using before computer using fingerprint identification device (2) progress fingerprint typing identification, when user into
After row fingerprint recognition successful match, if authorized user, the finger print data of successful match is sent to microcontroller (4), micro-control
Device (4) processed sets the access right of user, n No. three connection control switches (6) of control, No.1 connection control according to step 1
Switch one or more of (3) and No. two connection control switches (9) close the switch；When user carries out fingerprint recognition matching not
Success, then fingerprint identification device (2) sends fingerprint recognition failure signal to microcontroller, and external equipment cannot connect to computer
Host；
Step 3: when external equipment accesses external video-out port (8), external audio frequency output port (10) or n usb expansion
When one or more in interface (7), microcontroller (4) passes through No. three connection control switches (6) and usb expansion card (5) Xiang Lian
The interface for being connected to external equipment sends driving signal, reads the exclusive identification code and device type of connected external equipment, sentences
The equipment the exclusive identification code whether identification code stores within the microcontroller with the user of breaking matches, if matching, microcontroller
Device (4) controls No. four connection control switch closures, and external equipment is connect with main frame, and completion sets computer input and output
Standby identification, if mismatching, microcontroller (4) connects control switch (3), No. two connection control switches (9) or three to No.1
Multiple transmission in number connection control switch (6) disconnect control signal, realization to the peripheral connection port of unauthorized every
From.
2. the input output device of computer partition method according to claim 1 based on fingerprint recognition, which is characterized in that
It is that single-pole single-throw(SPST is opened that No.1, which connects control switch (3), n No. three connection control switches (6) and No. two connection control switches (9),
It closes.
3. the input output device of computer partition method according to claim 1 based on fingerprint recognition, which is characterized in that
Fingerprint identification device (2) are replaced using NFC reader or RFID card reader, the NFC reader or RFID card reader are for knowing
The card recognition letter of signal output end connection microcontroller (4) of other nfc card or RFID card, NFC reader or RFID card reader
Number input terminal.
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| CN201610921536.6A CN106446654B (en) | 2016-10-21 | 2016-10-21 | Input output device of computer partition method based on fingerprint recognition |
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| CN201610921536.6A CN106446654B (en) | 2016-10-21 | 2016-10-21 | Input output device of computer partition method based on fingerprint recognition |
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| CN106446654B true CN106446654B (en) | 2019-03-29 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108595983B (en) * | 2018-04-24 | 2021-08-06 | 许昌学院 | Hardware architecture based on hardware security isolation execution environment and application context integrity measurement method |
| CN109753472B (en) * | 2018-12-11 | 2021-03-26 | 航天信息股份有限公司 | Data processing method and device |
| CN112836246A (en) * | 2021-02-09 | 2021-05-25 | 无锡云动科技发展有限公司 | Multi-network isolation cloud desktop connection system based on fingerprint identification |
| CN113344163A (en) * | 2021-05-24 | 2021-09-03 | 南通大学 | Mobile memory and method for realizing one-way data transmission based on NFC |
| CN114741340A (en) * | 2022-03-17 | 2022-07-12 | 国网河北省电力有限公司超高压分公司 | USB interface isolation device |
| CN115221490B (en) * | 2022-09-20 | 2024-02-23 | 陕西天视致远航空技术有限公司 | Port information reinforcement computer and port information reinforcement method thereof |
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