CN102447560A - Dynamic token with optical communication unit - Google Patents
Dynamic token with optical communication unit Download PDFInfo
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- CN102447560A CN102447560A CN2011104559815A CN201110455981A CN102447560A CN 102447560 A CN102447560 A CN 102447560A CN 2011104559815 A CN2011104559815 A CN 2011104559815A CN 201110455981 A CN201110455981 A CN 201110455981A CN 102447560 A CN102447560 A CN 102447560A
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Abstract
The invention provides a dynamic token with an optical communication unit. The dynamic token comprises interconnected storage unit and micro processing unit, and further comprises a photosensitive unit connected with the micro processing unit and used for receiving optical signals of an external device. The dynamic token with the optical communication unit of the invention can receive signals of the external device, such as a key factor, a challenge problem or a clock synchronous signal and the like, which are needed for generating dynamic pass words, through the optical communication, thus, convenience is brought for consumer use.
Description
Technical field
The present invention relates to the data security technical field, relate in particular to a kind of dynamic token that is provided with optical communication element.
Background technology
In the prior art, dynamic token is widely used in Net silver, enterprise's OA system login etc. as a kind of information safety device that can dynamically produce disposal password, is used to verify user's identity.But existing dynamic token is because of needs are implanted seed through the contact communication mode, so can not accomplish water-tight; Challenge response formula dynamic token particularly, the user imports challenge because of needs, so input unit need be set; Its waterproof effect can be poorer, and using to the user makes troubles.
Summary of the invention
Main purpose of the present invention is that a kind of dynamic token that is provided with optical communication element is provided, and can receive the light signal of external equipment.
The present invention proposes a kind of dynamic token that is provided with optical communication element, comprises interconnective memory cell and microprocessing unit, also comprises the photosensitive unit that is connected, receives the external equipment light signal with said microprocessing unit.
Preferably, said photosensitive unit comprises an A/D change-over circuit that is connected with microprocessing unit, first amplifying circuit that is connected with an A/D change-over circuit and the photo resistance that is connected with first amplifying circuit.
Preferably, said photosensitive unit comprises the 2nd A/D change-over circuit that is connected with microprocessing unit, second amplifying circuit that is connected with the 2nd A/D change-over circuit and the photodiode that is connected with second amplifying circuit.
Preferably, said photosensitive unit comprises the 3rd A/D change-over circuit that is connected with microprocessing unit, the phototriode that is connected with the 3rd A/D change-over circuit.
Preferably, said photosensitive unit is an infrared remote receiver.
Preferably, also comprise the light signal output unit that is connected, exports light signal with said microprocessing unit.
Preferably, said light signal output unit comprises LED, led drive circuit and current-limiting resistance, and the positive pole of said LED is connected with power supply through said current-limiting resistance, and the negative pole of said LED is connected with said led drive circuit.
Preferably, said light signal output unit comprises LED, led drive circuit and current-limiting resistance, and the positive pole of said LED is connected with said led drive circuit, and the negative pole of said LED connects through said current-limiting resistance.
Preferably,, said light signal output unit is an infrared transmitter.
Preferably, also comprise display screen and screen control module, said screen control module is connected with display screen with microprocessing unit respectively.
A kind of dynamic token that is provided with optical communication element that the present invention proposes; Can receive the external equipment signal as generating required cryptographic key factor, challenge or the clock sync signal etc. of dynamic password through optical communication; Further; Also can send various information, use to the user and brought convenience through optical communication.
Description of drawings
Fig. 1 is the structural representation that the present invention is provided with dynamic token first embodiment of optical communication element;
Fig. 2 is first structural representation that the present invention is provided with photosensitive unit among dynamic token first embodiment of optical communication element;
Fig. 3 is second structural representation that the present invention is provided with photosensitive unit among dynamic token first embodiment of optical communication element;
Fig. 4 is the 3rd structural representation that the present invention is provided with photosensitive unit among dynamic token first embodiment of optical communication element;
Fig. 5 is the structural representation that the present invention is provided with dynamic token the 3rd embodiment of optical communication element;
Fig. 6 is first circuit diagram that the present invention is provided with light signal output unit among dynamic token the 3rd embodiment of optical communication element;
Fig. 7 is the second circuit figure that the present invention is provided with light signal output unit among dynamic token the 3rd embodiment of optical communication element.
The realization of the object of the invention, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
Embodiment
With reference to Fig. 1, dynamic token first embodiment that the present invention is provided with optical communication element is proposed, comprising: memory cell 11, microprocessing unit 10 and photosensitive unit 12; Microprocessing unit 10 can be MCU; Or the circuit with discrete element formation of MCU function, preferably, this microprocessing unit 10 is the safety chip of built-in encryption engine; Microprocessing unit 10 is connected with photosensitive unit 12 with memory cell 11 respectively, and said memory cell 11 is controlled with photosensitive unit 12.Photosensitive unit 12 is used to receive the information that external equipment such as main frame transmit with light signal, and the information that receives is sent to microprocessing unit 10 carries out handled.
Usually dynamic token also comprises display screen 14 and screen control module 13, and display screen 14, screen control module 13 are connected with microprocessing unit successively, shows the control signal of microprocessing unit 10 or the information of photosensitive unit 12 receptions etc., and the user is checked.
With reference to Fig. 2, Fig. 3, Fig. 4, above-mentioned photosensitive unit 12 can be realized through photo resistance 121, photodiode 124 or phototriode 125.
The structural representation of photosensitive unit 12 when Fig. 2 is to use photo resistance 121; At this moment; Photosensitive unit 12 comprises photo resistance 121, first amplifying circuit 122 and an A/D change-over circuit 123; First amplifying circuit 122 is connected with an A/D change-over circuit 123 with photo resistance 121 respectively, and photo resistance 121 is used to read light signal, and first amplifying circuit 122 is used for the light signal of photo resistance 121 outputs is amplified; The one A/D change-over circuit 123 is used for the signal of first amplifying circuit, 122 outputs is carried out mould/number conversion, afterwards the digital signal of output is imported microprocessing unit 10.
The structural representation of photosensitive unit 12 when Fig. 3 is to use photodiode 124; At this moment; Photosensitive unit 12 comprises photodiode 124, second amplifying circuit 125 and the 2nd A/D change-over circuit 126; Second amplifying circuit 125 is connected with the 2nd A/D change-over circuit 126 with photodiode 124 respectively, and photodiode 124 is used to read light signal, and second amplifying circuit 125 is used for the signal of photodiode 124 outputs is amplified; The 2nd A/D change-over circuit 126 is used for the signal of second amplifying circuit, 125 outputs is carried out mould/number conversion, afterwards the digital signal of output is imported microprocessing unit 10.
The structural representation of photosensitive unit 12 when Fig. 4 is to use phototriode 127; This moment, photosensitive unit 12 comprised phototriode 127 and the 3rd A/D change-over circuit 128; Said the 3rd A/D change-over circuit 128 is connected with microprocessing unit 10 with phototriode 127 respectively; Phototriode 127 is used to read light signal, and the 3rd A/D change-over circuit 128 is used for the signal of phototriode 127 outputs is carried out mould/number conversion, afterwards the digital signal of output is imported microprocessing unit 10.
Except that photo resistance 121, photodiode 124 or the phototriode 125, alternate manner that it may occur to persons skilled in the art that such as infrared remote receiver are also applicable to present embodiment.
Present embodiment is an example with challenge formula dynamic token, and the operation principle of the dynamic token that is provided with photosensitive unit 12 is described.The main frame of present embodiment comprises equipment such as PC, portable terminal, the ATM etc. that can carry out data interaction with challenge formula dynamic token server.
Common challenge formula dynamic token need show challenge on the main frame screen; By the user this challenge is imported challenge formula dynamic token; Challenge formula dynamic token generates challenge according to the challenge of user's input, supplies the user to import main frame and carries out authentication.
For the challenge formula dynamic token that is provided with photosensitive unit 12 in the present embodiment, can directly receive the challenge of main frame output through photosensitive unit 12.When main frame need carry out authentication to the user; On the main frame screen with different brightness or brightness change information or represent the different challenge value with different colors or color change information (a plurality of challenging values are combined into a challenge; Challenging value can be character and/or numeral) mode show challenge, the corresponding challenging value of a gray scale or grey scale change information (like white corresponding 1).Challenge formula dynamic token promptly receives brightness, brightness change information, color or the color change information of main frame screen through brightness, brightness change information, color or the color change information of photosensitive unit 12 induction main frame screens through optical communication.Owing in memory cell 11, preserve the corresponding relation of brightness, brightness change information, color or color change information and challenging value; After microprocessing unit 10 receives the information of photosensitive unit 12 inputs; Preserve corresponding relation according to memory cell 11 information of photosensitive unit 12 inputs is handled, obtain challenge.Be appreciated that; Said main frame also can be modulated the brightness or the color of screen through the mode of modulation with challenge; Generation is loaded with brightness, brightness change information, color or the color change information of challenge; Challenge formula dynamic token is through brightness, brightness change information, color or the color change information of photosensitive unit 12 induction main frame screens, with the information input microprocessing unit of sensing 10, the information of microprocessing unit demodulation photosensitive unit 12 inputs; Obtain challenge; Further generate dynamic password according to the challenge that obtains, and show on display screen 14 through screen control module 13, the user reads and can import main frame behind this dynamic password and carry out authentication.
The Another Application of present embodiment is that dynamic token receives the key data that is used to generate the cryptographic key factor of dynamic password or is used to generate cryptographic key factor through photosensitive unit 12, accomplishes the importing of cryptographic key factor.
Be appreciated that when dynamic token receives the synchronised clock of dynamic token server through photosensitive unit 12, can also carry out the clock synchronization between dynamic token and the dynamic token server.
With reference to Fig. 1; Dynamic token second embodiment that the present invention is provided with optical communication element has also been proposed; On the basis of first embodiment; Said display screen 14 can be exported brightness, brightness change information, color and/or the color change information that is loaded with the data that dynamic token need export under the control of screen control module 13; This information can be that the brightness and/or the color of the screen of the data-modulated dynamic token that will export of the microprocessing unit 10 of dynamic token generates; Said modulation system can be amplitude modulation(PAM), phase modulated or frequency modulation(FM), and the data that said dynamic token need be exported can be cryptographic key factor or the key data that is used to generate cryptographic key factor, and this cryptographic key factor can be used to generate dynamic password.
Present embodiment is on the first embodiment basis; Realized the bidirectional optical of dynamic token; Not only can receive the light signal of external equipment, the display screen 14 that also can carry through dynamic token is as required simultaneously exported light signal to external equipment, uses to the user to bring great convenience.
With reference to Fig. 5; Dynamic token the 3rd embodiment that the present invention is provided with optical communication element is proposed; On the basis of first embodiment, also be provided with light signal output unit 15, light signal output unit 15 is connected with microprocessing unit 10; Receive the information of microprocessing unit 10, and send this information to external equipment through light signal.
With reference to Fig. 6, Fig. 7; Light signal output unit 15 comprises led drive circuit 151, LED152 and current-limiting resistance R, and shown in Figure 6 is a circuit diagram of light signal output unit 15, and the positive pole of LED152 connects power supply VCC through current-limiting resistance R; The negative pole of LED152 connects led drive circuit 151; Led drive circuit 151 is connected with microprocessing unit 10, receives the control signal of microprocessing unit 10, and outwards sends light signal according to this control signal driving LED 152.
Shown in Figure 7 is another circuit diagram of light signal output unit 15; The positive pole of LED152 connects led drive circuit 151; The negative pole of LED152 is through current-limiting resistance R ground connection; Led drive circuit 151 is connected with microprocessing unit 10, receives the control signal of microprocessing unit 10, and outwards sends light signal according to this control signal driving LED 152.
Except that LED152, the alternate manner that it may occur to persons skilled in the art that is applicable to present embodiment too as sending light signal through infrared transmitter.
Present embodiment is on the first embodiment basis; Realized the bidirectional optical of dynamic token; Not only can receive the light signal of external equipment, also can send light signal through light signal output unit 15 is set to external equipment as required simultaneously, use to the user to bring great convenience.
The above is merely the preferred embodiments of the present invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. a dynamic token that is provided with optical communication element comprises interconnective memory cell and microprocessing unit, it is characterized in that, also comprises the photosensitive unit that is connected, receives the external equipment light signal with said microprocessing unit.
2. the dynamic token that is provided with optical communication element as claimed in claim 1; It is characterized in that; Said photosensitive unit comprises an A/D change-over circuit that is connected with microprocessing unit, first amplifying circuit that is connected with an A/D change-over circuit and the photo resistance that is connected with first amplifying circuit.
3. the dynamic token that is provided with optical communication element as claimed in claim 1; It is characterized in that; Said photosensitive unit comprises the 2nd A/D change-over circuit that is connected with microprocessing unit, second amplifying circuit that is connected with the 2nd A/D change-over circuit and the photodiode that is connected with second amplifying circuit.
4. the dynamic token that is provided with optical communication element as claimed in claim 1 is characterized in that, said photosensitive unit comprises the 3rd A/D change-over circuit that is connected with microprocessing unit, the phototriode that is connected with the 3rd A/D change-over circuit.
5. the dynamic token that is provided with optical communication element as claimed in claim 1 is characterized in that, said photosensitive unit is an infrared remote receiver.
6. like each described dynamic token that is provided with optical communication element in the claim 1 to 5, it is characterized in that, also comprise the light signal output unit that is connected, exports light signal with said microprocessing unit.
7. the dynamic token that is provided with optical communication element as claimed in claim 6; It is characterized in that; Said light signal output unit comprises LED, led drive circuit and current-limiting resistance; The positive pole of said LED is connected with power supply through said current-limiting resistance, and the negative pole of said LED is connected with said led drive circuit.
8. the dynamic token that is provided with optical communication element as claimed in claim 6; It is characterized in that; Said light signal output unit comprises LED, led drive circuit and current-limiting resistance; The positive pole of said LED is connected with said led drive circuit, and the negative pole of said LED connects through said current-limiting resistance.
9. the dynamic token that is provided with optical communication element as claimed in claim 6 is characterized in that, said light signal output unit is an infrared transmitter.
10. like each described dynamic token that is provided with optical communication element in the claim 1 to 5, it is characterized in that also comprise display screen and screen control module, said screen control module is connected with display screen with microprocessing unit respectively.
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| CN2011104559815A CN102447560A (en) | 2011-12-30 | 2011-12-30 | Dynamic token with optical communication unit |
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| CN2011104559815A CN102447560A (en) | 2011-12-30 | 2011-12-30 | Dynamic token with optical communication unit |
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| CN102984702A (en) * | 2012-11-22 | 2013-03-20 | 天地融科技股份有限公司 | Electronic signature device |
| CN103023643A (en) * | 2012-11-22 | 2013-04-03 | 天地融科技股份有限公司 | Dynamic password card and dynamic password generating method |
| CN103078738A (en) * | 2012-11-22 | 2013-05-01 | 天地融科技股份有限公司 | Dynamic password generation device and adapter |
| CN103368744A (en) * | 2013-07-16 | 2013-10-23 | 北京旋极信息技术股份有限公司 | Method and system for outputting password in dynamic token |
| CN103634112A (en) * | 2013-11-22 | 2014-03-12 | 中国建设银行股份有限公司 | Dynamic password certification system and method and dynamic password device |
| CN103684767A (en) * | 2012-09-05 | 2014-03-26 | 北京旋极信息技术股份有限公司 | Dynamic password generation device and method |
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| CN103634112A (en) * | 2013-11-22 | 2014-03-12 | 中国建设银行股份有限公司 | Dynamic password certification system and method and dynamic password device |
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Application publication date: 20120509 |