CN103186736A - Fingerprint key device - Google Patents
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- CN103186736A CN103186736A CN2013101154642A CN201310115464A CN103186736A CN 103186736 A CN103186736 A CN 103186736A CN 2013101154642 A CN2013101154642 A CN 2013101154642A CN 201310115464 A CN201310115464 A CN 201310115464A CN 103186736 A CN103186736 A CN 103186736A
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- 238000013461 design Methods 0.000 description 2
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Abstract
The invention discloses a fingerprint KEY device, comprising a chip, a memory, a housing, a power supply, a fingerprint collecting unit, a fingerprint verification unit, a modulation and demodulation module, and an audio plug, wherein the fingerprint collecting unit, the fingerprint verification unit and the modulation and demodulation module are connected with the chip; the audio plug is connected with the modulation and demodulation module; the chip has a chip operation system; the memory is used for storing a private key, a digital certificate, and a fingerprint template; the audio plug includes an MIC (microwave integrated circuit) pole and a sound track pole; the modulation and demodulation module is used for converting an analogue data received from the audio plug into a digital data and then transmitting to the chip, and converting the digital data to be conveyed by the fingerprint KEY device into the analogue data and then transmitting to the audio plug; and the chip can authorize to use the private key and the digital certificate in the memory after the fingerprint verification unit verifies. The fingerprint KEY device replaces PIN code verification with fingerprint verification, and can achieve information interaction of the fingerprint KEY device and electric equipment with an audio interface through the modulation and demodulation module and the audio plug. Therefore, the security and the reliability of identity authentication of a user are improved; and meanwhile, the adaptability and the convenience are also enhanced.
Description
Technical field
The present invention relates to the electronic security(ELSEC) field, relate in particular to a kind of fingerprint KEY device.
Background technology
Along with fast development and the widespread use of internet electronic business, the communication security of electronic information more and more is subjected to the threat of hacker, network monitoring device and virus.When adopting the mode of traditional " account name+password " to carry out subscriber authentication, the hacker can detect user's keyboard input by video monitoring or wooden horse watchdog routine, and then steal user account information, cause great hidden danger for user's privacy and property safety.
USB KEY device is a kind of more common electronics KEY secure hardware equipment; its built-in chip, storer and chip control system; can store private key for user and digital certificate and userspersonal information etc.; by the safeguard protection of PIN code realization to digital certificate and private key, utilize built-in cryptographic algorithm realization to user's authentication.But the hacker can intercept user's PIN code and account password equally by network, makes threat for user's electronic information security.
Simultaneously, this USB KEY device must be connected on the electronic equipment by USB interface, could realize safeguard protections such as data encryption, digital signature.But more existing electronic equipments consider that owing to portable the USB interface that does not set up standard so just can not guarantee user security by USB KEY device such as mobile phone and panel computer.
Thereby existing KEY device is having much room for improvement aspect security and the adaptability.
Summary of the invention
Technical matters solved by the invention provides a kind of fingerprint KEY device, substitute the PIN code checking by finger print identifying, and realize fingerprint KEY device and have the information interaction of the electronic equipment of audio interface by modulation module and audio jack, improve security and the reliability of subscriber authentication, also strengthened adaptability and convenience that fingerprint KEY device is used simultaneously.
For solving the problems of the technologies described above, the present invention adopts following scheme:
A kind of fingerprint KEY device, for the electronic equipment with audio interface, it comprises chip, storer, shell and power supply, described chip has chip operating system, described storer is used for storage private key and digital certificate, also comprise the fingerprint collecting unit that all is connected with described chip, fingerprint authentication unit and modulation module, and the audio jack that is connected with described modulation module, described audio jack has the MIC utmost point and the sound channel utmost point, described modulation module is used for being converted to from the simulated data that described audio jack receives and sends described chip after the numerical data to and be to send described audio jack to after the simulated data with the digital data conversion that described fingerprint KEY device will transmit, described storer can be stored fingerprint template, described fingerprint collecting unit is used for gathering fingerprint image, described fingerprint authentication unit is used for the checking of comparing of fingerprint characteristic that described chip is extracted from fingerprint image and fingerprint template, described chip described fingerprint authentication unit verify by after can license private key and digital certificate in the described storer.
Preferably, described device also comprises the USB standard plug that is connected with described chip.
Preferably, described modulation module comprises communication microcontroller and digital to analog converter, the input end of described communication microcontroller is connected in the MIC utmost point of described audio jack by described digital to analog converter, and the output terminal of described communication microcontroller is connected in the sound channel utmost point of described audio jack by described digital to analog converter.
Preferably, described fingerprint collecting unit comprises fingerprint sensor, and described fingerprint sensor is a kind of in sliding type semiconductor fingerprint sensor, CMOS fingerprint sensor and the CCD fingerprint sensor.
Preferably, described audio jack is the audio jack of 2.5mm or 3.5mm.
Preferably, described chip comprises the fingerprint image process chip, by the fingerprint algorithm feature that takes the fingerprint from the fingerprint image that described fingerprint collecting unit collects.
Preferably, also comprise the display module that is connected with described chip, be used for prompting user operation and display operation result.
Preferably, described display module is a kind of in LCD, LED, the OLED screen.
Preferably, described electronic equipment is a kind of in mobile phone, panel computer, palm PC, notebook computer, the POS machine.
A kind of electronic equipment comprises above-mentioned each described fingerprint KEY device.
Fingerprint KEY device provided by the invention is verified user's legal identity by the checking fingerprint, authentication by after just authorized user use key and digital certificate to carry out digital signature or data confidentiality, avoided traditional PIN code easily by the defective that illegally cracks or intercept, greatly improved the security of fingerprint KEY device, and the design of modulation module and audio jack has realized fingerprint KEY device and has had the information interaction of the electronic equipment of audio interface, has strengthened adaptability and convenience that fingerprint KEY device is used.
Description of drawings
Fig. 1 is the structured flowchart of the fingerprint KEY device of first embodiment of the invention;
Fig. 2 is the workflow diagram of the fingerprint KEY device of first embodiment of the invention;
Fig. 3 is the structured flowchart of the fingerprint KEY device of second embodiment of the invention.
Embodiment
The invention provides a kind of fingerprint KEY device, be used for the electronic equipment with audio interface.For making purpose of the present invention, technical scheme and effect clearer, clear and definite, below with reference to accompanying drawing and give an actual example that the present invention is described in more detail.
Fig. 1 is the structured flowchart of the fingerprint KEY device 10 of first embodiment of the invention, as shown in the figure, described fingerprint KEY device 10 comprises fingerprint collecting unit 20, fingerprint authentication unit 90, chip 30, storer 40, power supply 50, shell (not shown), chip operating system 60, modulation module 70 and audio jack 80.
Described shell is rectangular-shaped, and material is metal and/or plastics, is used for giving described fingerprint KEY device 10 that external support is provided.Described enclosure is set with mainboard, is used for the fixedly protection of intraware.Described storer 40 is internal storage, is arranged on the mainboard to be connected with described chip 30, is used for storage private key and digital certificate.Described power supply 40 is lithium battery, and detachable card is combined in the cell body of enclosure and is connected with described chip 30, is used for giving described fingerprint KEY device 10 power supplies.
The outer surface that described fingerprint collecting unit 20 is arranged on described shell is connected with described chip 30, be used for gathering user's fingerprint image, it comprises acquisition window and places the fingerprint sensor of acquisition window inside, and what described fingerprint sensor can be in sliding type semiconductor fingerprint sensor, CMOS fingerprint sensor and the CCD fingerprint sensor is a kind of.Consider the apparent size of described fingerprint KEY device 10 and the convenience of use, preferred, described fingerprint KEY device 10 adopts the sliding type semiconductor fingerprint sensor.The user can press the finger tip at acquisition window, and described fingerprint sensor is gathered user's fingerprint image, then it is sent to described chip 30.
Described fingerprint authentication unit 90 links to each other with described chip 30, is used for described chip 30 fingerprint characteristic that extracts and the fingerprint template that is stored in described storer 40 are in advance compared identifying user identity.Comparing in described fingerprint authentication unit 90, if both similarities surpass reservation threshold, then described authentication is passed through; Otherwise authentication is not passed through.
Described chip 30 is the core of described fingerprint KEY device 10, be fixedly installed on the mainboard, it comprises fingerprint image process chip (not shown) and is embedded with chip operating system 60, described print image process chip is by the fingerprint algorithm of the setting feature that takes the fingerprint from the fingerprint image that described fingerprint collecting unit 20 collects, and described chip operating system 60 is used for the control of information transmission and instruction.When described fingerprint authentication unit 90 identity verifications passed through, described chip operating system 60 can use the private key of storage in the described storer 40, digital certificate to be used for digital signature or refined net communication by authorized user.
Described audio jack 80 is connected with described modulation module 70, for having the standard audio plug for 2.5mm or 3.5mm of the MIC utmost point and the sound channel utmost point.
Described modulation module 70, all be connected with described audio jack 80 with described chip 30, comprise communication microcontroller and digital to analog converter, being used for the digital data conversion that described fingerprint KEY device 10 will transmit is to send described chip 30 to after sending described audio jack 80 to and will be converted to numerical data from the simulated data that described audio jack 80 receives after the simulated data.Particularly, the input end of described communication microcontroller is connected in the MIC utmost point of described audio jack 80 by described digital to analog converter, and the output terminal of described communication microcontroller is connected in the sound channel utmost point of described audio jack 80 by described digital to analog converter.
Fig. 2 is the workflow diagram of the fingerprint KEY device 10 of first embodiment of the invention, and it comprises step:
S1: the driver that fingerprint KEY device 10 is installed in electronic equipment, with the audio interface of described audio jack 80 insertion electronic equipments, described electronic equipment sends the simulated data of to be encrypted or digital signature to described fingerprint KEY device 10 by described audio jack 80;
S2: the simulated data that described modulation module 70 receives described audio jack 80 sends described chip 30 to after being converted into numerical data;
S3: user's fingerprint image is gathered in described fingerprint collecting unit 20, and is sent to described chip 30;
S4: described chip 30 feature that takes the fingerprint;
S5: compare the fingerprint characteristic that extracts and the fingerprint template that is stored in described storage unit 40 and identifying user identity in described fingerprint authentication unit 90, by then carrying out S6, otherwise do not carry out S6 as checking;
S6: described chip operating system 60 authorized users use the private key of storage in the described storer 40, digital certificate that the numerical data that chip described in the S2 step 30 receives is carried out digital signature or data encryption;
S7: the numerical data of described modulation module 70 after with digital signature or data encryption in the S6 step is converted into simulated data, and sends electronic equipment to by described audio jack 80.
S8: described electronic equipment is converted into numerical data by the D/A converter module of self with the simulated data that obtains in the S7 step.
In step S1, described simulated data to be encrypted or digital signature can be obtained from the numerical data conversion by the D/A converter module of described electronic equipment by self.
In step S5, comparing in described fingerprint authentication unit 90, if both similarities surpass reservation threshold, then described authentication is passed through; Otherwise authentication is not passed through.
Like this, after the S8 step, described electronic equipment has obtained the numerical data behind digital signature or the digital encryption, decipher by PKI, handle related service by the business module of electronic equipment then, or send resulting numerical data to server by cable network, wireless network, and then by the PKI deciphering with handle related service.Described related service can be that E-Payment, e commerce transactions and electronic information are mutual etc.
The fingerprint KEY device 10 that first embodiment of the invention provides is verified user's legal identity by the checking fingerprint, authentication by after just authorized user use key and digital certificate to carry out digital signature or data confidentiality, avoided traditional PIN code easily by the defective that illegally cracks or intercept, greatly improved the security of fingerprint KEY device 10, and the design of modulation module 70 and audio jack 80 has realized fingerprint KEY device 10 and has had the information interaction of the electronic equipment of audio interface, has strengthened adaptability and convenience that fingerprint KEY device 10 is used.
In addition, referring to Fig. 3, in the second embodiment of the present invention, on the basis of above-described embodiment, for improving expansion and convenience, described fingerprint KEY device 10 further comprises standard USB plug 100 and the display module 110 that all is connected with described chip.By described USB plug 100, described fingerprint KEY device 10 can directly carry out information interaction with the electronic equipment with USB interface.Described display module 110 can be used for prompting user operation and display operation result for LCD, LED, OLED screen.
Be understandable that, for those of ordinary skills, can be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, and all these changes or replacement all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. fingerprint KEY device, for the electronic equipment with audio interface, it comprises chip, storer, shell and power supply, described chip has chip operating system, described storer is used for storage private key and digital certificate, it is characterized in that, also comprise the fingerprint collecting unit that all is connected with described chip, fingerprint authentication unit and modulation module, and the audio jack that is connected with described modulation module, described audio jack has the MIC utmost point and the sound channel utmost point, described modulation module is used for being converted to from the simulated data that described audio jack receives and sends described chip after the numerical data to and be to send described audio jack to after the simulated data with the digital data conversion that described fingerprint KEY device will transmit, described storer can be stored fingerprint template, described fingerprint collecting unit is used for gathering fingerprint image, described fingerprint authentication unit is used for the checking of comparing of fingerprint characteristic that described chip is extracted from fingerprint image and fingerprint template, described chip described fingerprint authentication unit verify by after can license private key and digital certificate in the described storer.
2. device as claimed in claim 1 is characterized in that, also comprises the USB standard plug that is connected with described chip.
3. device as claimed in claim 1 or 2, it is characterized in that, described modulation module comprises communication microcontroller and digital to analog converter, the input end of described communication microcontroller is connected in the MIC utmost point of described audio jack by described digital to analog converter, and the output terminal of described communication microcontroller is connected in the sound channel utmost point of described audio jack by described digital to analog converter.
4. device as claimed in claim 1 or 2 is characterized in that, described fingerprint collecting unit comprises fingerprint sensor, and described fingerprint sensor is a kind of in sliding type semiconductor fingerprint sensor, CMOS fingerprint sensor and the CCD fingerprint sensor.
5. device as claimed in claim 1 or 2 is characterized in that, described audio jack is the audio jack of 2.5mm or 3.5mm.
6. device as claimed in claim 1 or 2 is characterized in that, described chip comprises the fingerprint image process chip, by the fingerprint algorithm feature that takes the fingerprint from the fingerprint image that described fingerprint collecting unit collects.
7. device as claimed in claim 1 or 2 is characterized in that, also comprises the display module that is connected with described chip, is used for prompting user operation and display operation result.
8. device as claimed in claim 7 is characterized in that, described display module is a kind of in LCD, LED, the OLED screen.
9. device as claimed in claim 1 or 2 is characterized in that, described electronic equipment is a kind of in mobile phone, panel computer, palm PC, notebook computer, the POS machine.
10. an electronic equipment is characterized in that, comprises each described fingerprint KEY device as claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101154642A CN103186736A (en) | 2013-04-01 | 2013-04-01 | Fingerprint key device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101154642A CN103186736A (en) | 2013-04-01 | 2013-04-01 | Fingerprint key device |
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| CN103186736A true CN103186736A (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101154642A Pending CN103186736A (en) | 2013-04-01 | 2013-04-01 | Fingerprint key device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777773A (en) * | 2015-01-26 | 2015-07-15 | 杭州师范大学 | Sensing device based on audio interface and data transmission method |
| CN107241192A (en) * | 2017-05-27 | 2017-10-10 | 飞天诚信科技股份有限公司 | The method and device that a kind of use fingerprint key is logged in |
| CN112637717A (en) * | 2020-12-21 | 2021-04-09 | 重庆蓝岸通讯技术有限公司 | Intelligent terminal system with external fingerprint module port, equipment switching method and fingerprint identification method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101340285A (en) * | 2007-07-05 | 2009-01-07 | 杭州中正生物认证技术有限公司 | Method and system for identity authentication by finger print USBkey |
| CN102255730A (en) * | 2011-07-11 | 2011-11-23 | 吴沙林 | Digital certificate safety lock device and digital certificate authentication system and method |
| US20120042369A1 (en) * | 2009-10-16 | 2012-02-16 | Huawei Device Co., Ltd | Data Card, Method and System for Identifying Fingerprint with Data Card |
-
2013
- 2013-04-01 CN CN2013101154642A patent/CN103186736A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101340285A (en) * | 2007-07-05 | 2009-01-07 | 杭州中正生物认证技术有限公司 | Method and system for identity authentication by finger print USBkey |
| US20120042369A1 (en) * | 2009-10-16 | 2012-02-16 | Huawei Device Co., Ltd | Data Card, Method and System for Identifying Fingerprint with Data Card |
| CN102255730A (en) * | 2011-07-11 | 2011-11-23 | 吴沙林 | Digital certificate safety lock device and digital certificate authentication system and method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777773A (en) * | 2015-01-26 | 2015-07-15 | 杭州师范大学 | Sensing device based on audio interface and data transmission method |
| CN107241192A (en) * | 2017-05-27 | 2017-10-10 | 飞天诚信科技股份有限公司 | The method and device that a kind of use fingerprint key is logged in |
| CN107241192B (en) * | 2017-05-27 | 2019-08-30 | 飞天诚信科技股份有限公司 | A kind of method and device logged in using fingerprint key |
| CN112637717A (en) * | 2020-12-21 | 2021-04-09 | 重庆蓝岸通讯技术有限公司 | Intelligent terminal system with external fingerprint module port, equipment switching method and fingerprint identification method |
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Application publication date: 20130703 |