CN203466831U - Identity authentication device - Google Patents

Identity authentication device Download PDF

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Publication number
CN203466831U
CN203466831U CN201320555070.4U CN201320555070U CN203466831U CN 203466831 U CN203466831 U CN 203466831U CN 201320555070 U CN201320555070 U CN 201320555070U CN 203466831 U CN203466831 U CN 203466831U
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China
Prior art keywords
chip
dynamic token
equipment
usb
commutation circuit
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CN201320555070.4U
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Inventor
刘一民
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Beijing WatchData System Co Ltd
Beijing WatchSmart Technologies Co Ltd
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Beijing WatchSmart Technologies Co Ltd
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Abstract

The utility model discloses an identity authentication device. The device comprises a dynamic token chip, a display screen connected with the dynamic token chip, a button connected with the dynamic token chip, a power supply powering the dynamic token chip, and a USB interface connected with the dynamic token chip; and the USB interface is used to obtain a seed secret key and a time factor from a server when a dynamic token is failure.

Description

A kind of ID authentication device
Technical field
The utility model relates to identity identifying technology field, relates in particular a kind of ID authentication device.
Background technology
At present, electronic banking, E-Government, E-business applications are day by day frequent, and increasing consumer selects online shopping and on-line finance service.Online shopping mode provides new operational channel to enterprise, has increased sales volume, has reduced operation cost; Use Web bank to carry out the favor that online transaction has been subject to increasing businessman and consumer.In order to set up credible, a safe network trading platform, guarantee the safe, reliable of network trading.Many businessmans have released personal identification equipment, such as, OTP(One time password, dynamic password) token.
Shown in figure 1, for existing structural representation, wherein display screen is for showing the password of generation, described password is OTP safety chip utilization some attribute informations of being kept at seed key, time factor and OTP token in chip (such as sequence numbers of token etc.), one that adopts dedicated algorithms to generate is combined with random digit time correlation, uncertain, time factor refers to real-time time, for example 45 minutes 32s of 2013-7-2316 point).Each password can only be used once, and the fixed password of setting with respect to user adopts dynamic password, without user, regular password is set, and can provide safer environment for user carries out electronic banking, E-Government, E-business applications.But the use of OTP token is affected by environment larger, such as, token falls or is squeezed, all likely can cause the flash of OTP token supplying cell, and the seed key of OTP token is kept in the RAM of OTP token, once the power down of OTP token, OTP safety chip will be lost for generation of the required seed key of password and time factor, and OTP token global failure cannot be used.
Utility model content
The utility model provides a kind of ID authentication device, easily affected by environment to solve in prior art OTP token, when powered battery is discontinuous, and the technical problem that causes OTP token cannot use due to loss of data.
The utility model provides a kind of ID authentication device, and the utility model provides following technical scheme:
An ID authentication device, this equipment comprises:
Dynamic token chip, the display screen being connected with dynamic token chip, the button being connected with dynamic token chip, and be the power supply of dynamic token chip power supply;
Described equipment also comprises:
The USB interface being connected with dynamic token chip, while losing efficacy for dynamic token, obtains seed key and time factor from server.
Preferably, described equipment also comprises:
Be connected to the USB KEY safety chip between dynamic token chip and USB interface, when described power supply is button cell, USB KEY safety chip is for transferring to dynamic token chip by the seed key obtaining and time factor;
When described power supply is rechargeable battery, USB KEY safety chip is for transferring to dynamic token chip by the time factor of obtaining, seed key is stored in safety chip, in the time of need to calculating dynamic password, from dynamic token chip, obtain the real-time time factor and generate dynamic password according to seed key and time factor.
Preferably, USB KEY safety chip is connected by Simulation with I 2C bus interface, universal asynchronous receiving-transmitting transmitter UART interface or serial peripheral SPI interface with dynamic token chip.
Preferably, when described power supply is rechargeable battery, described equipment also comprises:
Voltage detecting circuit, charging management chip;
Voltage detecting circuit, for measuring the real-time voltage of described rechargeable battery, and sends to dynamic token chip by the real-time voltage of the rechargeable battery of measurement;
If the real-time voltage of rechargeable battery is lower than predetermined threshold value, charging management chip receives the work triggering signal of dynamic token chip, and the rated current that the current conversion that USB interface is transmitted is rechargeable battery is rechargeable battery charging.
Preferably, described equipment also comprises:
The demonstration commutation circuit being all connected with display screen, dynamic token chip, USB KEY safety chip, for when USB interface does not access terminal, keep to show communicating by letter between commutation circuit and dynamic token chip, close communicating by letter between demonstration commutation circuit and USB KEY safety chip; When USB interface accesses terminal, keep to show communicating by letter between commutation circuit and USB KEY safety chip, close communicating by letter between demonstration commutation circuit and dynamic token chip;
The button commutation circuit being all connected with button, dynamic token chip, USB KEY safety chip, for when USB interface does not access terminal, keep communicating by letter between button commutation circuit and dynamic token chip, close communicating by letter of button commutation circuit and USB KEY safety chip; When USB interface accesses terminal, keep communicating by letter of button commutation circuit and USB KEY safety chip, close communicating by letter between button commutation circuit and dynamic token chip.
Preferably, described equipment also comprises: the memory being connected with USB KEY safety chip, and for storing the business datum of USB KEY safety chip and/or controlling data.
Preferably, described USB KEY safety chip is AC3192 chip.
Preferably, described dynamic token chip is ml407 chip.
Preferably, described charging management chip is SGM4056 chip.
Preferably, described button commutation circuit and demonstration commutation circuit adopt SGM44599 chip.
In the utility model, ID authentication device adopts dual chip mode, except dynamic token chip and the display screen being connected with dynamic token chip, the button that is connected with dynamic token chip, described equipment also comprises the USB interface being connected with dynamic token chip.When dynamic token lost efficacy due to accidental cause, can access terminal by USB interface, from server, obtain seed key and time factor, guarantee the validity of dynamic token chip.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, the accompanying drawing the following describes is only some embodiment that record in the application, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of OTP token in prior art;
Fig. 2 is the structural representation of USB KEY in prior art;
The structural representation of a kind of ID authentication device embodiment 1 that Fig. 3 provides for the utility model;
The structural representation of a kind of ID authentication device embodiment 2 that Fig. 4 provides for the utility model;
The structural representation of a kind of ID authentication device embodiment 3 that Fig. 5 provides for the utility model.
Embodiment
In order to make those skilled in the art person understand better the utility model scheme, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
For the ease of to understanding of the present utility model, the another kind of ID authentication device that paper is once widely used except OTP: USB KEY, USB KEY is a kind of hardware device of USB interface, its built-in single-chip microcomputer or intelligent card chip, there is certain memory space, can store user's private key and digital certificate, utilize the built-in public key algorithm of USB KEY to realize the authentication to user identity.Because private key for user is kept in coded lock, make in theory all cannot read in any way, guaranteed the fail safe that user authenticates.USB KEY is widely used in terminal authentication product by Net silver, E-Government etc.
Shown in figure 2, be structural representation and the internal structure thereof of traditional USB KEY, USBKEY safety chip is connecting display screen and each button, controls the output of display screen and receives the input from each button.When operating in page turning browse state, USB KEY safety chip receives page turning key action, can control display screen and upwards turn over one page until can not turn over again; While receiving lower page turning key action, can control display screen and turn over one page downwards until can not turn over again; When operation is during in Tactic selection, as whether will confirmed to transfer accounts time, when USB KEY safety chip receives the confirmation key action, continue the work of transferring accounts; When USB KEY safety chip receives cancel key action, stop this workflow.
Based on foregoing description, introduce structure of the present utility model below, shown in figure 3, the structural representation of a kind of ID authentication device embodiment 1 providing for the utility model, described ID authentication device comprises: dynamic token chip 301, the display screen 302 being connected with dynamic token chip, the button 303 being connected with dynamic token chip are the power supply 304 of dynamic token chip power supply.
Wherein dynamic token chip (can select ml407 chip to realize), display screen, button are the basic modules that OTP token has, dynamic token chip is dynamic token special chip, chip includes 8 MCU(MicroController Unit, multipoint control unit), the functional module such as low-power consumption hardware real-time clock (RTC), LCD driving, UART interface (Universal Asynchronous Receiver/Transmitter, universal asynchronous receiving-transmitting transmitter).Display screen is for showing the dynamic password that user uses OTP token process to generate, or by user by the information of key-press input, wherein button can adopt the 4*4 button that OTP token has itself, comprises 0-9 numerical key, decimal key, on & off switch and other 4 function keys.
On the basis of the above, further, described equipment also comprises: the USB interface 305 being connected with dynamic token chip.After OTP token lost efficacy, loss of data in dynamic token chip, such as generating required seed key and the time factor of dynamic password, in OTP chip, record this time, time factor is constantly to change, time factor can only be stored in OTP chip, and power down meeting disappears, and dynamic token just can not be used.When dynamic token lost efficacy, described equipment can be connected with terminal by USB interface, by terminal, from certificate server, download the data that dynamic token is lost.
In the utility model, ID authentication device adopts dual chip mode, except dynamic token chip and the display screen being connected with dynamic token chip, the button that is connected with dynamic token chip, described equipment also comprises the USB interface being connected with dynamic token chip.When dynamic token due to beyond reason while causing losing efficacy, the data by USB interface from terminal dynamic token Die missing, guarantee the validity of dynamic token.
In embodiment 1, the power supply that OTP token is used can be button cell, and the life-span of button cell is limited, is generally 3-5, rugged environment also can further reduce the life-span of battery, such as high temperature, humidity etc., once the button cell electric weight of OTP token exhausts, battery cannot be changed separately, making equally whole token lose efficacy cannot use, user can only arrive the OTP token that sales counter more renews, and changes frequently OTP token and not only can cause the waste of resource, also can reduce user's experience.For the problems referred to above, the utility model also provides a kind of ID authentication device embodiment 2, shown in figure 4, structural representation for a kind of ID authentication device embodiment 2, except the structure shown in embodiment 1, further, described equipment can also comprise: be connected to the USB KEY safety chip 401 between dynamic token chip and USB interface, voltage detecting circuit 402, charging management chip 403, wherein, USB KEY safety chip and dynamic token chip can pass through Simulation with I 2C bus interface, universal asynchronous receiving-transmitting transmitter UART interface or serial peripheral SPI interface connect.
For dynamic token chip, except adopting button cell, preferably, can adopt rechargeable battery as power supply, adopt different supply power modes, the operation principle of whole equipment is different, such as, two of the free factor of critical data that dynamic token needs and seed keys, preferred, by USB interface, from server gets seed key, can be stored in USB KEY chip (KEY chip has secure storage areas).When adopting button cell, because button cell power supply capacity is limited, can not provide the USB KEY electric current of chip operation, can not give USB KEY chip power, seed key can only be stored in OTP chip, and the calculating of dynamic password completes in OTP chip.Occur after power down, seed key disappears, and need to again download seed key in OTP chip by certificate server.If employing rechargeable battery, rechargeable battery can provide the electric current of USB KEY chip operation (to be specially rechargeable battery to OTP chip power supply, OTP chip enables KEY chip power by IO pin), so seed key is stored in USB KEY chip, when calculating dynamic password, USB KEY chip calls the time factor of storage in OTP chip, in conjunction with the algorithm in USB KEY chip and seed key, calculate dynamic password, then send OTP chip to and be presented on display screen, after power down, can not disappear, without repeated downloads.
When adopting rechargeable battery to be described dynamic token chip power supply, voltage detecting circuit can be measured the real-time voltage of described rechargeable battery in real time, and the real-time voltage of the rechargeable battery of measurement is sent to dynamic token chip (described charging management chip can select SGM4056 chip to realize); If the real-time voltage of rechargeable battery is lower than predetermined threshold value; dynamic token chip enable charging management chip; charging management chip work; the rated current that the current conversion that charging management chip transmits USB interface is rechargeable battery; for rechargeable battery charging; in charging management chip, can comprise overvoltage crowbar etc., guarantee the safe charging of rechargeable battery.
It should be noted that, voltage detecting circuit can adopt analog comparator and peripheral resistance, the electric capacity that dynamic token chip carries to realize, form a high accuracy single-slope AD(A/D converter that is similar to ∑-△ technology), this AD is suitable for measuring the amount of slow variation, as voltage, temperature etc.
The present embodiment not only can bring the beneficial effect of embodiment 1, and further, adopting rechargeable battery is the useful life that dynamic token chip power supply can extend dynamic token; And the data of download are stored in the secure storage areas of USB KEY safety chip itself, can guarantee on the one hand the fail safe of seed key, when token lost efficacy on the other hand, without repeating, from server, download.
Shown in figure 5, the structural representation of a kind of ID authentication device embodiment 3 providing for the utility model, except the structure shown in described embodiment 1,2, described equipment can also comprise: the demonstration commutation circuit 501 being all connected with display screen, dynamic token chip, USB KEY safety chip, the button commutation circuit 502 being all connected with button, dynamic token chip, USB KEY safety chip, the memory 503 being connected with USB KEY safety chip.
Show that commutation circuit 501 is mainly used in the demonstration of USB KEY safety chip output information and dynamic token chip output information, when USB interface does not access terminal, keep to show communicating by letter between commutation circuit and dynamic token chip, close and show communicating by letter between commutation circuit and USB KEY safety chip, now, the information of display screen dynamic token chip output; When USB interface accesses terminal, keep to show communicating by letter between commutation circuit and USB KEY safety chip, close and show communicating by letter between commutation circuit and dynamic token chip, now, the information that display screen demonstration USB KEY safety chip is exported; It should be noted that, when USB interface does not access terminal, USB KEY safety chip and dynamic token chip can all not worked, if user has triggered the power key of dynamic token chip, dynamic token chip enters operating state.
Similar with demonstration commutation circuit principle, button commutation circuit 502 is for selecting to which chip input message, concrete, when USB interface does not access terminal, keep communicating by letter between button commutation circuit and dynamic token chip, close communicating by letter of button commutation circuit and USB KEY safety chip; When USB interface accesses terminal, keep communicating by letter of button commutation circuit and USB KEY safety chip, close communicating by letter between button commutation circuit and dynamic token chip.Wherein show that commutation circuit and button commutation circuit all can adopt SGM44599 chip to realize, SGM44599 is comprised of 2 road input signals and 1 tunnel output signal and a control signal, and wherein 1 road input signal is effective for controlling for control signal.
After described equipment has button commutation circuit and shows commutation circuit, OTP token of conduct that described equipment just can be independent different in the situation that or USB KEY are used, concrete, when USB interface accesses terminal, show that commutation circuit is switched to and the communicating by letter of USB KEY safety chip, button commutation circuit is switched to and the communicating by letter of USB KEY safety chip, now, whole equipment is just used as a USB KEY and is used, preferably, when whole equipment is used as USB KEY use, described equipment can also comprise memory 503(such as, SPI FLASH) for storing the business datum of USB KEY safety chip and/or controlling data.
Need explanation, USB KEY is different for the demand of button with OTP token, USB KEY only needs 4 function keys, and OTP token needs 4*4 button, preferred, the equipment in the present embodiment can adopt the form of button multiplexing to realize the function conversion of USB KEY and OTP token, such as, in order to reduce the volume of described equipment, a 4*4 button can be only set, comprise power key, numerical key 0-9 and decimal key and 4 function keys.When USB interface accesses terminal, key part only has 4 function keys effective, is mainly used in realizing the function of USB KEY, realize to confirm, cancel and on turn over, under turn over function.When USB interface is extracted, 16 buttons of key part are all effective, if trigger power key, described button is mainly used in inputting startup password and other function relevant to OTP.
USB KEY product safety, is affected by environment and fortuitous event less, larger but its use is affected by terminal; OTP token product need not USB interface, and product is small and exquisite attractive in appearance, very convenient to carry, but it is affected by environment larger, and useful life is limited, once token lost efficacy, product cannot be reused.The ID authentication device that the utility model provides adopts dual chip scheme, between chip, by I2C interface, communicate, when whether USB interface accesses terminal, all can use, compare with traditional USB KEY, this equipment can be in telephone bank, Mobile banking, ATM, is used on the different platforms such as POS machine, different internet terminal equipment, to user, provides more convenience.Compare with traditional dynamic token, when USB interface access computer, can hold and transfer data in OTP chip by PC.In addition, battery can charge, and has extended the useful life of OTP token.
Although the model of different chips has been described in preferred embodiment of the present utility model, but to those skilled in the art, grasping on the basis of this area rudimentary knowledge, can adopt other chips to realize embodiment of the present utility model, be not specifically limited here.
The above is only embodiment of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.

Claims (10)

1. an ID authentication device, is characterized in that, described equipment comprises:
Dynamic token chip, the display screen being connected with dynamic token chip, the button being connected with dynamic token chip, and be the power supply of dynamic token chip power supply;
Described equipment also comprises:
The USB interface being connected with dynamic token chip, while losing efficacy for dynamic token, obtains seed key and time factor from server.
2. equipment according to claim 1, is characterized in that, described equipment also comprises:
Be connected to the USB KEY safety chip between dynamic token chip and USB interface, when described power supply is button cell, USB KEY safety chip is for transferring to dynamic token chip by the seed key obtaining and time factor;
When described power supply is rechargeable battery, USB KEY safety chip is for transferring to dynamic token chip by the time factor of obtaining, seed key is stored in safety chip, in the time of need to calculating dynamic password, from dynamic token chip, obtain the real-time time factor and generate dynamic password according to seed key and time factor.
3. equipment according to claim 1, is characterized in that, USB KEY safety chip is connected by Simulation with I 2C bus interface, universal asynchronous receiving-transmitting transmitter UART interface or serial peripheral SPI interface with dynamic token chip.
4. equipment according to claim 2, is characterized in that, when described power supply is rechargeable battery, described equipment also comprises:
Voltage detecting circuit, charging management chip;
Voltage detecting circuit, for measuring the real-time voltage of described rechargeable battery, and sends to dynamic token chip by the real-time voltage of the rechargeable battery of measurement;
If the real-time voltage of rechargeable battery is lower than predetermined threshold value, charging management chip receives the work triggering signal of dynamic token chip, and the rated current that the current conversion that USB interface is transmitted is rechargeable battery is rechargeable battery charging.
5. according to the equipment described in claim 1-4 any one, it is characterized in that, described equipment also comprises:
The demonstration commutation circuit being all connected with display screen, dynamic token chip, USB KEY safety chip, for when USB interface does not access terminal, keep to show communicating by letter between commutation circuit and dynamic token chip, close communicating by letter between demonstration commutation circuit and USB KEY safety chip; When USB interface accesses terminal, keep to show communicating by letter between commutation circuit and USB KEY safety chip, close communicating by letter between demonstration commutation circuit and dynamic token chip;
The button commutation circuit being all connected with button, dynamic token chip, USB KEY safety chip, for when USB interface does not access terminal, keep communicating by letter between button commutation circuit and dynamic token chip, close communicating by letter of button commutation circuit and USB KEY safety chip; When USB interface accesses terminal, keep communicating by letter of button commutation circuit and USB KEY safety chip, close communicating by letter between button commutation circuit and dynamic token chip.
6. equipment according to claim 5, is characterized in that, described equipment also comprises: the memory being connected with USB KEY safety chip, and for storing the business datum of USB KEY safety chip and/or controlling data.
7. equipment according to claim 5, is characterized in that, described USB KEY safety chip is AC3192 chip.
8. equipment according to claim 5, is characterized in that, described dynamic token chip is ml407 chip.
9. equipment according to claim 4, is characterized in that, described charging management chip is SGM4056 chip.
10. equipment according to claim 4, is characterized in that, described button commutation circuit and demonstration commutation circuit adopt SGM44599 chip.
CN201320555070.4U 2013-09-06 2013-09-06 Identity authentication device Active CN203466831U (en)

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Application Number Priority Date Filing Date Title
CN201320555070.4U CN203466831U (en) 2013-09-06 2013-09-06 Identity authentication device

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104378200A (en) * 2014-11-19 2015-02-25 中城智慧科技有限公司 Method for controlling validity period of secret key through clock
CN105703809A (en) * 2015-12-31 2016-06-22 北京华大智宝电子系统有限公司 Bluetooth KEY
WO2017016131A1 (en) * 2015-07-28 2017-02-02 深圳市文鼎创数据科技有限公司 Control system based on dynamic password and usbkey, and control method therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104378200A (en) * 2014-11-19 2015-02-25 中城智慧科技有限公司 Method for controlling validity period of secret key through clock
WO2017016131A1 (en) * 2015-07-28 2017-02-02 深圳市文鼎创数据科技有限公司 Control system based on dynamic password and usbkey, and control method therefor
US10708057B2 (en) 2015-07-28 2020-07-07 Shenzhen Excelsecu Data Technology Co., Ltd Control system based on dynamic password and USBKEY, and control method thereof
CN105703809A (en) * 2015-12-31 2016-06-22 北京华大智宝电子系统有限公司 Bluetooth KEY

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