CN104917607A - PIN encryption equipment of touch screen key-press input and encryption method - Google Patents
PIN encryption equipment of touch screen key-press input and encryption method Download PDFInfo
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- CN104917607A CN104917607A CN201510214938.8A CN201510214938A CN104917607A CN 104917607 A CN104917607 A CN 104917607A CN 201510214938 A CN201510214938 A CN 201510214938A CN 104917607 A CN104917607 A CN 104917607A
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Abstract
The invention discloses a PIN encryption equipment of a touch screen key-press input. The PIN encryption equipment comprises a display screen; and the PIN encryption equipment is characterized in that the PIN encryption equipment comprises a touch screen, a touch drive chip, a safety chip and an industrial control computer, the touch screen is connected with the drive chip, the touch drive chip is connected with the safety chip, the safety chip is connected with the industrial control computer, and the industrial control computer is connected with the display screen. The invention further discloses an encryption method of the PIN encryption equipment of the touch screen key-press input. The encryption equipment and the encryption method are safe and easy to use. A user conveniently inputs a PIN through the touch screen, and operation is very convenient; and encryption is completed in the built-in safety chip of the touch screen, and user's PIN safety and secret key safety are protected.
Description
Technical field
The present invention relates to a kind of encryption device, be specifically related to one and be arranged on the PIN(PIN by touch-sensitive display key-press input special in the finance self-help terminals such as ATM (automatic teller machine) (ATM-Automatic Teller Machine), multi-media information terminal) encryption device, the invention belongs to financial field of encryption.
Background technology
Along with growing with each passing day of multimedia information inquiry equipment, people speak of touch-screen more and more, because touch-screen is not only applicable to the national conditions of Chinese multimedia information inquiry, and touch-screen have sturdy and durable, reaction speed fast, save space, be easy to many advantages such as interchange.Utilize this technology, as long as user is with pointing the icon that touches lightly on computer display or word just can realize host service function, thus make man-machine interaction more simple and direct, this technology greatly facilitates the user that those are ignorant of computation.The suitable maturation developed according to touch screen technology and diversified, as the medium classification of touch screen technology according to operation principle and transmission information, has resistance-type, capacitor induction type, infrared-type and surface acoustic wave type etc.Each class touch screen technology has its respective feature.
The finance self-help terminals such as ATM also adopt band touch function display screen in a large number, make Consumer's Experience obtain great lifting, user habit and the mode be more prone to by clicking on the touchscreen completes operations.Meanwhile, as the core security equipment of traditional ATM, PIN Encryption Keyboard (hereinafter referred to as EPP) is the input interface of the private informations such as user cipher and the memory device of bank and other financial mechanism key and encrypts actuating equipment, and its fail safe is most important.EPP is installed on the customer fascia of the equipment such as ATM usually, also outside this core security equipment being directly exposed to while handled easily, greatly to reduce for the attack of EPP and damage capability for resisting or to make the manufacturer of EPP need flower great effort how making it to resist in the exploitation of attack, considerably increasing cost.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of PIN encryption device of touch-screen key-press input, during to solve touch-screen key-press input in prior art, PIN is difficult to the problem of encrypting.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
A kind of PIN encryption device of touch-screen key-press input, comprise display screen, it is characterized in that, comprise: touch-screen, touch driving chip, safety chip, industrial computer, described touch-screen connects driving chip, and described touch driving chip connects safety chip, described safety chip connects industrial computer, and described industrial computer connects display screen.
The PIN encryption device of aforesaid a kind of touch-screen key-press input, is characterized in that, also comprise protective zone, described touch driving chip and safety chip are installed in protective zone.
The encryption method of the PIN encryption device of aforementioned a kind of touch-screen key-press input, is characterized in that, comprise the steps:
Step one: display screen interface prompting user inputs password, and fictionalizes screen key on a display screen;
Step 2: user inputs password by touch-screen, each all generation coordinate informations of clicking are caught by touch-screen;
Step 3: touch the coordinate information of driving chip collection touch reception and A/D conversion is carried out to it, then the information after process is delivered in safety chip;
Step 4: whether the information that touch driving chip is sent here is separated out at Interior Solutions by safety chip is corresponding PIN value, if so, then buffer memory PIN value, and send cue to industrial computer, show meaningless character by display screen after industrial computer receives cue, represent that effective PIN value inputs;
Step 5: after by the time all PIN inputs, PIN carries out encoding and encrypted in safety chip, and the content containing PIN information after encryption sends to industrial computer process;
Step 6: industrial computer terminates display screen PIN inputting interface.
The encryption method of the PIN encryption device of aforesaid a kind of touch-screen key-press input, is characterized in that, in described step one, the interface location of the screen key at every turn fictionalized adopts Random trimming or the out of order mode of key mapping.
The encryption method of the PIN encryption device of aforesaid a kind of touch-screen key-press input, is characterized in that, in described step 5, safety chip sends to industrial computer process by after encryption containing the PIN information content by RS232 or USB interface.
The encryption method of the PIN encryption device of aforesaid a kind of touch-screen key-press input, is characterized in that, does not encrypt when touch-screen inputs non-PIN data.
Usefulness of the present invention is: the present invention's safety is easy-to-use.User is by inputting PIN easily on the touchscreen, and operation is very convenient; And encryption is completed also in the safety chip that touch-screen is built-in, protect the safety of user PIN safety and key.
Accompanying drawing explanation
Fig. 1 is hardware plan block diagram of the present invention;
Fig. 2 is screen simulating keyboard schematic diagram of the present invention;
Fig. 3 is the encryption method schematic flow sheet of the PIN encryption device of a kind of touch-screen key-press input of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, concrete introduction is done to the present invention.
With reference to shown in Fig. 1, the PIN encryption device of a kind of touch-screen key-press input of the present invention, comprise display screen, touch-screen, touch driving chip, safety chip, industrial computer, described touch-screen connects driving chip, and described touch driving chip connects safety chip, described safety chip connects industrial computer, and described industrial computer connects display screen.Hardware plan realizes being the input coordinate information being received user by touch-screen, touch the coordinate information of driving chip collection touch reception and A/D conversion is carried out to it, and the information after process is delivered in safety chip, safety chip realizes safe storage and the safety encipher function of key, the information that touch driving chip is sent here is encrypted after Interior Solutions is separated out corresponding PIN value and followed related pattern coding by safety chip, and the PIN information content that contains after encryption is sent to industrial computer process by interfaces such as RS232, USB.For protection PIN and secret key safety, safety chip and touch driving chip and between communication signal should be placed in protective zone, the safety protection function provided by safety chip designs corresponding safety detection circuit, makes it possible to resist certain attack means.In figure, safety chip also can comprise touch driver module, can realize this programme like this with one piece of control chip.Display screen in figure is for showing PIN input keyboard and information.
Software interactive flow process sets up security mechanism, also cannot infer PIN value even if the signal making touch-screen collect is detected to attack to obtain.Such as show input keyboard interface that is out of order or random coordinates by display screen, and the mode synchronous with the foundation of touch-screen, make each PIN value input all different.
Specifically, owing to have employed the mode from touch-screen input PIN, for ensureing the safety of PIN data,
On hardware:
Need to do appropriate reconstruction to the control circuit of touch-screen and firmware, make it the function with storage key and encryption etc., and increase safety protection circuit.Owing to not having special safe touch main control chip to release at present, existing universal safety chip can be selected to add and to touch drive circuit realization; The safety detection mechanism provided by safety chip, designs the circuit such as such as tamper, the anti-detection circuit of netted anti-boring, over-voltage over-current protection.The protective cover of protective zone usually by being difficult to remove covers, and attacks the self-destruction destroying protective zone and all can cause key, PIN and firmware.Safety protective circuit does not limit implementation, if can realize equipment relevant criterion safe class require.The firmware of touch-screen and driving are revised, and increase the interface such as key management, encrypted transmission; Can with host computer, display screen be engaged in corresponding display under parse correct PIN value.
In flow process:
Application software need be revised as the mode supporting touch-screen key-press input, makes supporting amendment, make touch-screen correctly can resolve PIN code in client display screen interactive interface and flow process.
Password flow process is inputted for user, as shown in Figure 3:
1) first application software inputs password by display screen interface prompting user, and fictionalizes screen key on a display screen.For guaranteeing PIN fail safe, Random trimming is answered in the key interface position at every turn fictionalized, or adopts the out of order mode of key mapping.Display interface in a kind of situation shown in Fig. 2;
2) user inputs password by touch-screen, and its each click all produces a coordinate data and caught by touch screen control circuit, and parses password key assignments buffer memory, and the data syn-chronization of touch-screen and display screen realizes by schemes such as existing algorithm, random numbers.Password encryption is preserved after completing input by user in PIN encrypting module;
3) when each user inputs password, touch-screen sends a cue to host computer, and host computer receives signal by meaningless characters such as display screens display ' * ';
4) fail safe of PIN encrypting module needs the certification meeting associated safety certification authority.
Can encrypt when touch-screen inputs non-PIN data, the plaintext of data can directly send to host computer process.
Due to the mode such as adopt coordinate Random trimming or key mapping is out of order in display, ensure that each touch panel coordinates data are not identical, assailant is difficult to parse user PIN value by intercepting and capturing coordinate data; And PIN is stored in the ciphering unit of safeguard protection, ensure that the safe storage of PIN data, PIN ciphering unit adopts built-in mode, avoids assailant from device external directtissima, has farthest ensured the safety of PIN data.
Thus, the present invention proposes a kind of by touch input and the PIN encryption function scheme that two combine into one, and its core is that safety is easy-to-use.User is by inputting PIN easily on the touchscreen, and operation is very convenient; And in the safety chip that touch-screen is built-in, complete encryption, safety chip itself with security mechanism and support periphery independently safety circuit detect, and be built in machinery equipment, protect the safety of user PIN safety and key.
More than show and describe general principle of the present invention, principal character and advantage.The technical staff of the industry should understand, and above-described embodiment does not limit the present invention in any form, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection scope of the present invention.
Claims (6)
1. the PIN encryption device of a touch-screen key-press input, comprise display screen, it is characterized in that, comprise: touch-screen, touch driving chip, safety chip, industrial computer, described touch-screen connects driving chip, and described touch driving chip connects safety chip, described safety chip connects industrial computer, and described industrial computer connects display screen.
2. the PIN encryption device of a kind of touch-screen key-press input according to claim 1, is characterized in that, also comprise protective zone, and described touch driving chip and safety chip are installed in protective zone.
3. the encryption method of a kind of PIN encryption device of touch-screen key-press input described in claim 1, is characterized in that, comprise the steps:
Step one: display screen interface prompting user inputs password, and fictionalizes screen key on a display screen;
Step 2: user inputs password by touch-screen, each all generation coordinate informations of clicking are caught by touch-screen;
Step 3: touch the coordinate information of driving chip collection touch reception and A/D conversion is carried out to it, then the information after process is delivered in safety chip;
Step 4: whether the information that touch driving chip is sent here is separated out at Interior Solutions by safety chip is corresponding PIN value, if so, then buffer memory PIN value, and send cue to industrial computer, show meaningless character by display screen after industrial computer receives cue, represent that effective PIN value inputs;
Step 5: after by the time all PIN inputs, PIN carries out encoding and encrypted in safety chip, and the content containing PIN information after encryption sends to industrial computer process;
Step 6: industrial computer terminates display screen PIN inputting interface.
4. the encryption method of the PIN encryption device of a kind of touch-screen key-press input according to claim 3, is characterized in that, in described step one, the interface location of the screen key at every turn fictionalized adopts Random trimming or the out of order mode of key mapping.
5. the encryption method of the PIN encryption device of a kind of touch-screen key-press input according to claim 4, is characterized in that, in described step 5, safety chip sends to industrial computer process by after encryption containing the PIN information content by RS232 or USB interface.
6. the encryption method of the PIN encryption device of a kind of touch-screen key-press input according to claim 5, is characterized in that, does not encrypt when touch-screen inputs non-PIN data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510214938.8A CN104917607A (en) | 2015-04-30 | 2015-04-30 | PIN encryption equipment of touch screen key-press input and encryption method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510214938.8A CN104917607A (en) | 2015-04-30 | 2015-04-30 | PIN encryption equipment of touch screen key-press input and encryption method |
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| CN104917607A true CN104917607A (en) | 2015-09-16 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105893884A (en) * | 2016-04-21 | 2016-08-24 | 深圳市旭子科技有限公司 | Touch encryption keyboard and data input method |
| CN105976516A (en) * | 2016-04-21 | 2016-09-28 | 深圳市旭子科技有限公司 | Touch encryption keyboard and data input method |
| CN106055992A (en) * | 2016-06-07 | 2016-10-26 | 广东欧珀移动通信有限公司 | Method for processing touch operation and terminal |
| CN106096461A (en) * | 2016-05-18 | 2016-11-09 | 深圳市巨潮科技股份有限公司 | Cryptographic signature touch display and encryption method thereof |
| CN106326700A (en) * | 2016-08-26 | 2017-01-11 | 福建联迪商用设备有限公司 | Password safety input method and device of touch display screen of POS (Point Of Sale) machine |
| CN106570429A (en) * | 2016-10-31 | 2017-04-19 | 深圳盒子支付信息技术有限公司 | Input protection method and system for PIN data |
| CN107563209A (en) * | 2017-08-28 | 2018-01-09 | 深圳市新国都支付技术有限公司 | Touch-screen PIN input methods and device based on Android |
| CN107895268A (en) * | 2017-11-28 | 2018-04-10 | 艾体威尔电子技术(北京)有限公司 | A kind of method that safety input PIN is realized on intelligent payment terminal |
| CN108091078A (en) * | 2017-12-12 | 2018-05-29 | 深圳市旭子科技有限公司 | Capacitance touch screen and financial payment electronic equipment |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105893884A (en) * | 2016-04-21 | 2016-08-24 | 深圳市旭子科技有限公司 | Touch encryption keyboard and data input method |
| CN105976516A (en) * | 2016-04-21 | 2016-09-28 | 深圳市旭子科技有限公司 | Touch encryption keyboard and data input method |
| CN106096461A (en) * | 2016-05-18 | 2016-11-09 | 深圳市巨潮科技股份有限公司 | Cryptographic signature touch display and encryption method thereof |
| CN106055992A (en) * | 2016-06-07 | 2016-10-26 | 广东欧珀移动通信有限公司 | Method for processing touch operation and terminal |
| CN106055992B (en) * | 2016-06-07 | 2019-05-21 | Oppo广东移动通信有限公司 | A kind of method and terminal handling touch operation |
| CN106326700A (en) * | 2016-08-26 | 2017-01-11 | 福建联迪商用设备有限公司 | Password safety input method and device of touch display screen of POS (Point Of Sale) machine |
| WO2018036418A1 (en) * | 2016-08-26 | 2018-03-01 | 福建联迪商用设备有限公司 | Method and apparatus for safe input of password of touch display screen of pos machine |
| CN106570429A (en) * | 2016-10-31 | 2017-04-19 | 深圳盒子支付信息技术有限公司 | Input protection method and system for PIN data |
| CN107563209A (en) * | 2017-08-28 | 2018-01-09 | 深圳市新国都支付技术有限公司 | Touch-screen PIN input methods and device based on Android |
| CN107895268A (en) * | 2017-11-28 | 2018-04-10 | 艾体威尔电子技术(北京)有限公司 | A kind of method that safety input PIN is realized on intelligent payment terminal |
| CN108091078A (en) * | 2017-12-12 | 2018-05-29 | 深圳市旭子科技有限公司 | Capacitance touch screen and financial payment electronic equipment |
| CN108091078B (en) * | 2017-12-12 | 2020-11-17 | 深圳市旭子科技有限公司 | Capacitive touch screen and financial payment electronic equipment |
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Application publication date: 20150916 |