CN105913107A - Fingerprint encryption intelligent card - Google Patents
Fingerprint encryption intelligent card Download PDFInfo
- Publication number
- CN105913107A CN105913107A CN201610024350.0A CN201610024350A CN105913107A CN 105913107 A CN105913107 A CN 105913107A CN 201610024350 A CN201610024350 A CN 201610024350A CN 105913107 A CN105913107 A CN 105913107A
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- Prior art keywords
- chip
- fingerprint
- smart card
- card
- finger print
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
- G06K19/07309—Means for preventing undesired reading or writing from or onto record carriers
- G06K19/07345—Means for preventing undesired reading or writing from or onto record carriers by activating or deactivating at least a part of the circuit on the record carrier, e.g. ON/OFF switches
- G06K19/07354—Means for preventing undesired reading or writing from or onto record carriers by activating or deactivating at least a part of the circuit on the record carrier, e.g. ON/OFF switches by biometrically sensitive means, e.g. fingerprint sensitive
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0716—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising a sensor or an interface to a sensor
- G06K19/0718—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising a sensor or an interface to a sensor the sensor being of the biometric kind, e.g. fingerprint sensors
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/50—Maintenance of biometric data or enrolment thereof
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Automation & Control Theory (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Collating Specific Patterns (AREA)
- Image Input (AREA)
Abstract
The invention provides a fingerprint encryption intelligent card. Fingerprint authentication of a user can be finished in an encryption chip inside the intelligent card, authentication information is transmitted to a controller through encryption via an ISO7816 standard interface, the controller controls activation of an intelligent card chip according to encryption information, and a user cannot normally use the intelligent card unless he succeeds in fingerprint verification, such that the security of the card is ensured, and the security of fingerprint information of the user is also guaranteed.
Description
Technical field
The present invention relates to technical field of intelligent card, it particularly relates to a kind of encrypting fingerprint smart card and its implementation..
Background technology
Smart card can also be referred to as " integrated circuit card " or " IC card ", owing to have employed current state-of-the-art semiconductor fabrication and information security technology, have many good qualities relative to the fixture of other kind, just becoming increasingly popular the various aspects of modern economy and daily life.Along with the fast development of internet economy, conventional authentication technology is increasingly difficult in adapt to the demand for development of smart card, and fingerprint identification technology is increasingly becoming well accepted smart card authentication technology because of it in agility, convenience and the reliability of authenticated connection.
With the fast development of internet economy, the case that the Internet is stolen user's property and information happens occasionally, and becomes a problem that cannot ignore in application of IC cards.In order to solve the problems referred to above, people devise multiple encryption certificate scheme based on contemporary cryptology, and existing encrypting fingerprint certificate scheme generally requires and uploads finger print information outside user Xiang Ka and verify, this brings disclosure risk to user fingerprints information.
Summary of the invention
Set forth below is the brief overview about the present invention, in order to provide the basic comprehension about certain aspects of the invention.Summarize it is understood, however, that this general introduction is not the exhaustive about the present invention.It is not intended to the critical component for determining the present invention or pith, is not to be intended to limit the scope of the present invention.Its purpose is only to provide some concept about the present invention in simplified form, in this, as preamble in greater detail given later.
For the above-mentioned problems in the prior art, it is an object of the present invention to provide a kind of encrypting fingerprint smart card, it can complete the finger print identifying of user in the finger print safety chip of smartcard internal, and authentication information is sent to controller by ISO7816 standard interface through encryption, by this controller according to the activation adding confidential information and controlling intelligent card chip, only could normally use this smart card after user has passed through fingerprint authentication, i.e. ensure that the safety of card, in turn ensure that the safety of user fingerprints information.
To achieve these goals, according to the invention provides a kind of encrypting fingerprint smart card, it is characterised in that: include
Finger print safety chip, is integrated with fingerprint sensor and safety chip；
Intelligent card chip；
Power supply；
Controller, is used for coupling described finger print safety chip, intelligent card chip, power supply；
And the multiple interfaces to external system；
Described finger print safety chip is for sensing initial fingerprint and at least one subsequent fingerprint of user, the initial fingerprint of described user and at least one subsequent fingerprint form initial fingerprint characteristic information and at least one subsequent fingerprint characteristic information through finger print safety chip process, described user's initial fingerprint characteristic information burning in finger print safety chip among, described initial fingerprint characteristic information completes at finger print safety chip internal with the comparison of at least one subsequent fingerprint characteristic information, comparative result sends to controller through finger print safety chip encryption, controller controls whether to activate intelligent card chip according to adding confidential information.
By below in conjunction with the accompanying drawing detailed description to highly preferred embodiment of the present invention, the these and other advantage of the present invention will be apparent from.
Accompanying drawing explanation
The present invention can employ same or analogous reference to represent same or like parts the most in all of the figs by with reference to being better understood below in association with the detailed description given by accompanying drawing.Described accompanying drawing comprises in this manual together with detailed description below and forms a part for description, is used for being further illustrated by the preferred embodiments of the present invention and explaining the principle and advantage of the present invention.In the accompanying drawings:
Fig. 1 shows the block diagram of encrypting fingerprint smart card according to an embodiment of the invention；
Fig. 2 shows the block diagram of the finger print safety chip shown in Fig. 1；
Fig. 3 shows the block diagram of the controller shown in Fig. 1；
Fig. 4 shows the exemplary processes performed during fingerprint register on card according to the smart card shown in embodiments of the invention Fig. 1；And
Fig. 5 shows the exemplary processes performed during fingerprint authentication on card according to the smart card shown in embodiments of the invention Fig. 1.
Detailed description of the invention
Hereinafter in connection with accompanying drawing, the one exemplary embodiment of the present invention is described.For clarity and conciseness, all features of actual embodiment are not the most described.It should be understood, however, that must make during developing any this practical embodiments much specific to the decision of embodiment, in order to realize the objectives of developer.
Below to be integrated with on fingerprint sensor, encryption chip, controller, intelligent card chip and support card as a example by the encrypting fingerprint smart card designs of fingerprint register and the upper fingerprint authentication of card, structure and relevant processing procedure to encrypting fingerprint smart card according to embodiments of the present invention illustrate.
Fig. 1 shows the block diagram of encrypting fingerprint smart card according to an embodiment of the invention.After smart card has only carried out effective fingerprint pressing (that is, having passed through fingerprint authentication) on its integrated fingerprint sensor, just can be used for normal subsequent treatment.
As shown in Fig. 1, by ISO7816 standard definition smart card contact pad, (figure Intermediate gasket is schematic diagram to smart card, it is not to limit only with gasket style as shown in FIG., the pad of any ISO7816 of meeting standard can use), conventional APDU order and response protocol defined in ISO7816 is utilized to communicate with extraneous (such as, card reader).Within a smart card, at least include two chips, intelligent card chip and finger print safety chip, finger print safety integrated chip fingerprint sensor and encrypting fingerprint chip.Finger print safety chip, intelligent card chip, smart card contact pad, power circuit, NFC chip are connected with controller, controller be controlled.The power supply of all parts that power circuit is integrated in controlling smart card, finger print safety chip is used for detecting whether user (that is, card holder) is holder.Controller has ISO7816 main interface, and it is via APDU order conventional defined in ISO7816 and response protocol and encrypting fingerprint chip and intelligent card chip exchange message.From the perspective of intelligent card chip, controller similarly is that the conventional card reader on ISO7816 interface operates like that, and in other words, controller is considered card reader on a sheet.
Smart card, in addition to providing contact communication mode, also provides for contactless communication mode such as NFC, Bluetooth, WiFi, Zigbee.
The sensitive data of the fingerprint feature information of user's registration is stored in encrypting fingerprint chip, fingerprint authentication is performed by finger print safety chip, i.e. finger print safety chip forms user fingerprints characteristic information after being extracted by the finger print information collected, this feature information is compared with the fingerprint feature information prestored, in order to determine whether card holder is holder.
The encryption of comparing result information is sent to controller by finger print safety chip, and AES used by described encryption can include following one or more: AES, DES, 3DES, RSA, ECC data AES, Advanced Encryption Standard, the close SM1 of state, the close SM2 of state, the close SM3 of state and the close SM4 of state etc..
First this finger print safety chip gathers finger print information from fingerprint sensor, this fingerprint sensor can be slidingtype, it can also be pressing type, wherein the collection area of pressing type can be 192*192, 160*160, 176*176 equidimension, encrypting fingerprint chip carries out fingerprint pretreatment by fingerprint algorithm to the finger print information of fingerprint sensor collection, including carrying out image block, linearity filters, image enhaucament, extract Block direction, ask for singular point block, extract the field of direction, the field of direction filters, obtain singular point, image binaryzation, binaryzation is modified, obtain frequency fields, obtain fingerprint density, obtain fingerprint pattern, fingerprint image refines, obtain fingerprint minutiae, integration templates etc. operate, fingerprint feature information after finally processing is stored in encrypting fingerprint chip.
Described finger print safety chip can use SC 300 32-bit RISC core high-performance processor as kernel.
Described intelligent card chip is selected from SLE97, SLE4404, SLE4406, SLE4418, SLE4428, SLE4432/4442, SLE4436, NXP MF1 IC S20, NXP MF1 IC S50, NXP
MF1 IC S70、AT88SC101、AT88SC102、AT88SC200、M68HC05SC、MF4406、MF4428、MF4442。
Controller can be microprocessor, it is also possible to be FPGA control circuit, as it is shown on figure 3, mainly comprise: certification control module, scheduler module, power management module, ISO7816 interface.
Described certification control module, checking adds confidential information from encrypting fingerprint chip, decides whether intelligent card chip fingerprint authentication Success Flag is set to true to activate intelligent card chip according to adding confidential information.
Described scheduler module, (for dispatch encrypting fingerprint chip, intelligent card chip and to external system multiple interfaces between information flow.
Described energy supply control module, powers for controlling all parts integrated in smart card.
Fingerprint register process is as shown in Fig. 4, and processing procedure 400 starts in step S410, then in step S420, one display device of finger print safety chip controls is used for pointing out intelligent card subscriber to carry out fingerprint register.Here, any method well known in the prior art can be used to carry out prompting such as display lamp, display screen.
In step S430, when its finger is placed on fingerprint sensor in response to prompting shown in display device by user, gathers the fingerprint image of user via fingerprint sensor, and provide it to encrypting fingerprint chip.
Encrypting fingerprint chip is after receiving user fingerprint image, in step S440, carries out Finger print characteristic abstract process, in order to extract the fingerprint feature information of user.Here, encrypting fingerprint chip can use any feature extraction algorithm well known in the prior art to extract user fingerprints pattern.
In step S450, the described fingerprint pattern information received is stored in the internal storage device (not shown in Fig. 2) of encrypting fingerprint chip by fingerprint register and checking application program, and sends " succeeding in registration " response message to instruction device.
In step S460, instruction device is in response to described " succeeding in registration " response message, by updating instruction device information, in order to notice user fingerprints registration completes.Subsequently, processing procedure 400 terminates in step S470, this completes fingerprint register process on the card of user (that is, the card owner).
When user needs to use intelligent card chip to carry out subsequent treatment, such as when completing once to conclude the business, he first has to complete on card after fingerprint recognition success (now, card is placed on hand), i.e. pass through on the card shown in Fig. 5 after fingerprint authentication process, smart card could be activated and follow-up being put in card reader by smart card operates accordingly, otherwise will be unable to card is normally used.
Fingerprint authentication process is as it is shown in figure 5, in step S510, prompting user proceeds by fingerprint authentication.
In step S520, its finger is placed on fingerprint sensor by user, gathers the fingerprint image of user via fingerprint sensor, and provides it to encrypting fingerprint chip.
In step S530, encrypting fingerprint chip extracts user fingerprints characteristic information.
In step S540, fingerprint register and checking application program, the user fingerprints pattern information extracted in step S530 is compared with the registered fingerprint characteristic information being previously stored in fingerprint recognition chip, to determine whether the two mates.
If determining that in step S540 above-mentioned fingerprint feature information is mutually matched, then process and proceed to step S550, encrypting fingerprint chip comparison result is encrypted, add confidential information and send to controller through 7816 interfaces；Otherwise, process proceeds to step S570.
If determining that in step S540 above-mentioned fingerprint feature information is mutually matched, then process and proceed to step S550, encrypting fingerprint chip comparison object information is encrypted, add confidential information and send to controller through 7816 interfaces；Otherwise, process proceeds to step S570.
In step S560, controller foundation adds confidential information and intelligent card chip fingerprint authentication Success Flag is set to true to activate intelligent card chip.
In step S570, encrypting fingerprint chip instruction display device displays to the user that fingerprint authentication is the most successful.Hereafter, on card, the process of fingerprint authentication terminates in step S580.
In order to ensure only could normally use smart card after by fingerprint authentication, conventional application program on intelligent card chip needs to utilize the value of above-mentioned fingerprint authentication Success Flag, only when fingerprint authentication Success Flag is set, intelligent card chip could be activated properly functioning, to interact with external card reader, such as, it is traded by card reader.
Although combining accompanying drawing above to describe embodiments of the invention in detail, it is to be understood that embodiments described above is only intended to the present invention is described, and it is not intended that limitation of the present invention.For a person skilled in the art, above-mentioned embodiment can be made various modifications and changes without departing from the spirit and scope of the invention.Therefore, the scope of the present invention is only limited by appended claim and equivalents thereof.
Claims (16)
1. an encrypting fingerprint smart card, it is characterised in that include
Finger print safety chip, described finger print safety integrated chip fingerprint sensor and safety chip；
Intelligent card chip；
Power circuit；
Multiple interfaces to external system；
Controller, for coupling described finger print safety chip, intelligent card chip, power circuit, multiple interfaces to external system；
And power supply, power through power circuit all parts in smart card；
Described finger print safety chip is for sensing initial fingerprint and at least one subsequent fingerprint of user, the initial fingerprint of described user and at least one subsequent fingerprint form initial fingerprint characteristic information and at least one subsequent fingerprint characteristic information through finger print safety chip process, described user's initial fingerprint characteristic information burning in finger print safety chip among, described initial fingerprint characteristic information completes at finger print safety chip internal with the comparison of at least one subsequent fingerprint characteristic information, comparative result sends to controller through finger print safety chip encryption, controller controls whether to activate intelligent card chip according to adding confidential information.
2. smart card as claimed in claim 1, it is characterised in that described finger print safety chip, intelligent card chip, power circuit, multiple interfaces, controller to external system are integrated among same chip.
3. smart card as claimed in claim 1 or 2, it is characterized in that, described safety chip is selected from SLE97, SLE4404, SLE4406, SLE4418, SLE4428, SLE4432/4442, SLE4436, NXP MF1 IC S20, NXP MF1 IC S50, NXP MF1 IC S70, AT88SC101, AT88SC102, AT88SC200, M68HC05SC, MF4406, MF4428, MF4442.
4. smart card as claimed in claim 1 or 2, it is characterised in that described multiple interfaces to external system comprise one or more among contact pins and antenna assembly.
5. smart card as claimed in claim 4, it is characterized in that, described antenna assembly is selected from NFC and the chip of support 13.56MHz operating frequency, Bluetooth and the chip of support 2.4GHz, 5-7 GHz operating frequency, WiFi and the chip of support 2.4GHz, 5.8GHz operating frequency, one or more in the chip of Zigbee and support 868GMHz, 915GMHz, 2.3GHz operating frequency.
6. smart card as claimed in claim 1 or 2, it is characterised in that described controller comprises certification control module, scheduler module, power management module, and the information communication between described controller and described finger print safety chip, intelligent card chip uses 7816 interfaces.
7. smart card as claimed in claim 6, it is characterised in that described controller is the one in MCU and FPGA circuitry.
8. smart card as claimed in claim 1 or 2, it is characterised in that one or more in lithium battery, graphene battery, polymer battery, fuel cell, ceramic cell, solaode of described power supply.
9. smart card as claimed in claim 1 or 2, it is characterised in that described power supply comprises " super capacitor " as Power convert further.
10. smart card as claimed in claim 1 or 2, it is characterised in that described fingerprint sensor is the one in sweep fingerprint sensor, pressing type fingerprint sensor.
11. smart cards as claimed in claim 1 or 2, it is characterized in that, farther include for encapsulating finger print safety chip, intelligent card chip, power circuit, controller, the shell of multiple interfaces to external system, this shell have opening and the opening of sensing fingerprint exposing smart card contact pad.
12. smart cards as claimed in claim 11, it is characterised in that the opening of the opening of described exposure smart card contact pad and sensing fingerprint is at the same face of card.
13. smart cards as claimed in claim 11, it is characterised in that the opening of the opening of described exposure smart card contact pad and sensing fingerprint is on the relative two sides of card.
14. smart card as claimed in claim 13, it is characterised in that the center of the center of the opening of described exposure smart card contact pad and the opening of fingerprint sensor overlaps.
15. smart cards as claimed in claim 1 or 2, it is characterised in that farther include on and off switch.
16. smart cards as claimed in claim 1 or 2, it is characterised in that farther include to indicate device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779753 | 2015-11-16 | ||
| CN2015107797531 | 2015-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105913107A true CN105913107A (en) | 2016-08-31 |
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ID=56744308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610024350.0A Pending CN105913107A (en) | 2015-11-16 | 2016-01-15 | Fingerprint encryption intelligent card |
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| Country | Link |
|---|---|
| CN (1) | CN105913107A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109614965A (en) * | 2019-02-19 | 2019-04-12 | 北京英奇芯片技术有限公司 | A kind of the fingerprint mould group and its fingerprint identification method of the identification function containing NFC |
-
2016
- 2016-01-15 CN CN201610024350.0A patent/CN105913107A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109614965A (en) * | 2019-02-19 | 2019-04-12 | 北京英奇芯片技术有限公司 | A kind of the fingerprint mould group and its fingerprint identification method of the identification function containing NFC |
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| C06 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160831 |