CN103824033A - Touch display device for safely inputting password information and password input method - Google Patents
Touch display device for safely inputting password information and password input method Download PDFInfo
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- CN103824033A CN103824033A CN201410103439.7A CN201410103439A CN103824033A CN 103824033 A CN103824033 A CN 103824033A CN 201410103439 A CN201410103439 A CN 201410103439A CN 103824033 A CN103824033 A CN 103824033A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/82—Protecting input, output or interconnection devices
- G06F21/83—Protecting input, output or interconnection devices input devices, e.g. keyboards, mice or controllers thereof
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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Abstract
The invention relates to a touch display device for safely inputting password information and a password input method. The touch display device comprises a touch screen, a touch screen driving module, a display module, an on-screen display module and a microprocessor. The microprocessor is connected with the display module through the on-screen display module, and information of a coordinate position touched by a user is sent into the microprocessor by the touch screen through the touch screen driving module. When the user inputs a password, a password input interface image is generated by the microprocessor, the generated image is stacked on a video image output by a system through the on-screen display module, and then the stacked image is output to the display module to be displayed. Input information of the user is intercepted and captured by the microprocessor, and the input password is sent to the system after being encrypted by the microprocessor. Through the device and the method, it is avoided that sensitive information such as the password input by the user is acquired by malicious software operated on the system by intercepting and capturing user input, display output, system memory or file data and the like on a system bottom layer, and high safety is provided for electronic transaction and payment.
Description
Technical field
The present invention relates to a kind of information security technology, particularly a kind of touch display unit and cipher-code input method of safety input encrypted message.
Background technology
Along with thering is touch display screen and loading Android, Windows, Linux, the portable computing device of the intelligent operating systems such as iOS is popular, the demand that completes electronic transaction and E-Payment on this kind equipment grows with each passing day, for example: personal user uses mobile phone or panel computer to complete online electronic transaction or payment; The intelligent operating systems such as the special finance device use Android of manufacturer are thrown in the mobile POS machine product with touch-screen to market; The customization mobile business terminal that insurance business person, courier etc. use, both need to be on equipment finishing service function, again need to be on equipment completing user payment function.
There is such safety problem in existing equipment in above-mentioned use scenes: if rogue program has obtained the highest weight limit of operating system, it has just had all user's input informations of intercepting including touch screen operation, intercepting system is to the image of screen output, ability with the data that in read operation system, any one program is stored in internal memory and file, so on existing equipment, if the program of electronic transaction or electronic payment function that realizes directly allows user by the dummy keyboard input password on touch display screen, and on screen, draw user's required dynamic display graphics while inputting according to user's input information, the button being pressed such as highlighted demonstration, and the password of user's input is left in Installed System Memory or file with plaintext form, all there is potential safety hazard.
Existing special finance device, for example POS machine, the common method addressing this problem is to use an external unit: code keypad.
In the time that needs user inputs password, system sends request and makes it to enter Password Input state to code keypad, under this state, button or the encrypted message of user's input can not send to equipment primary processor, ciphertext after safety chip after Password Input completes in code keypad is encrypted input results sends to primary processor and the operating system of equipment, solves with this problem that user cipher is intercepted and captured by rogue program; Code keypad directly can be integrated on equipment for mobile device, both can in ordinary procedure, input numeral and operation for user, also can in payment program, activate the password input function of keyboard.
The way of the integrated code keypad with physical button can increase equipment size, weight and cost, increases structural design difficulty, affects appearance design simultaneously; Especially the mobile phone for consumption market and panel computer, increasing Product Tendency is in using the full touch screen design of on-keyboard, and the produce market acceptance of integrated physical keyboard is poor.
The method part that patent (application publication number CN101813992A) has proposed a kind of coordinate position that uses special touch-screen driving chip encryption user point touching screen solves above-mentioned safety problem; The method by user touch operation co-ordinate position information encrypt after send system to, read the application program of this information and decrypts information can be reduced; For the rogue program of the user's input coordinate value at system bottom intercept operation system input subsystem, the coordinate figure of intercepting and capturing is what to encrypt, rogue program is cheated and failed to obtain real user touches operation coordinate figure, and therefore the method obtains security to a certain degree.
The unsolved problem of the method has two: first, this encryption coordinate figure will be reduced into original coordinates value and translate into key value and password plaintext in program, this can cause occurring password in internal memory expressly, this be expressly can obtained system highest weight limit rogue program obtain; Second, if application program repaints screen to provide operational feedback to user according to this coordinate figure, such as the virtual key that highlighted demonstration user clicks, the rogue program that obtains system highest weight limit can obtain the password key assignments that user presses by screen printing image and image recognition technology; If for not more new images demonstration of security application, user's button operation fails to obtain visual feedback, be that poor user experiences.
Summary of the invention
The present invention be directed to the problem of inputting password existence on the smart machine now with touch display screen, a kind of touch display unit and cipher-code input method of safety input encrypted message have been proposed, on the smart machine with touch display screen, allow user can directly input the sensitive informations such as password by touch display screen, avoid the rogue program that obtains smart machine operating system highest weight limit by user's input of interception system bottom simultaneously, the screen picture displaying contents of system bottom, or the mode such as user cipher plaintext in Installed System Memory is intercepted and captured user password information, ensure that user inputs the security of encrypted message.
Technical scheme of the present invention is: a kind of touch display unit of safety input encrypted message, comprise touch-screen, touch-screen driver module, show module, at screen display module, microprocessor, microprocessor is by being connected with demonstration module at screen display module, microprocessor is connected with system primary processor, receive the vision signal from system at screen display module, the co-ordinate position information that touch-screen touches operation by touch-screen driver module by user is sent into microprocessor, receive the control signal of microprocessor at screen display module, Overlapping display image in the vision signal of system.
Described touch-screen is capacitance touch screen, electric resistance touch screen, infrared touch panel, piezoelectric type touch screen, the one in surface wave touch-screens, ultrasonic touch screen.
Described touch-screen can be touch-screen body independently, can be also the integrated touch display screen integrating with described demonstration module.
Described touch-screen receives the electro-induction signal that user touches generation and send touch-screen driver module, and touch-screen driver module is converted to user and touches the coordinate information output of operation.
Described demonstration module receives the vision signal of input and is converted to image and shows.
Described have at least one road vision signal inputting interface at screen display module, for receiving the vision signal from system, has at least one road vision signal output interface simultaneously, for to described demonstration module outputting video signal.
Described microprocessor is created on display image screen and exports at screen display module, or outputs a control signal at screen display module, is controlled at screen display module and is created on display image screen.
A touch display unit cipher-code input method for safety input encrypted message, comprises the touch display unit of input encrypted message safely, specifically comprises the steps:
1) system is sent the request that starts input cipher mode to microprocessor;
2) microprocessor enters Password Input state, stop sending user to system and on touch-screen, touch the co-ordinate position information operating, generating cipher inputting interface image is also fed in screen display module, or be controlled at screen display module generating cipher inputting interface image, at screen display module, interface for password input image outputed to described demonstration module displays as being superimposed upon at display image screen on system video image;
3) user is inputted password or is sent backspace, removing, cancellation, confirmation operational order by the virtual key in click interface for password input and/or the hand-written mode of handwriting area in interface for password input, the co-ordinate position information that user is touched operation by touch-screen driver module is sent into microprocessor, and microprocessor operates and upgrades interface for password input demonstration according to user;
4), after microprocessor receives that user operates at every turn, judge whether Password Input operation completes; If input operation does not complete, microprocessor returns to step 3) and waits for further input or operation of user; If input operation has completed and user successfully inputs password, microprocessor sends to system after user is inputted to password encryption; If input operation has completed and user cancels Password Input, microprocessor apprizing system user cancels Password Input;
5) microprocessor exits Password Input state, remove interface for password input image, and output order is controlled at screen display module and recovers system video image to be directly transmitted to demonstration module displays, simultaneously microprocessor recovery touches the co-ordinate position information operating on touch-screen to system forwards user.
Described interface for password input image, can comprise the virtual digit keyboard being formed by numerical key, can also comprise by numeral, letter, the virtual portfolio keyboard of system characters composition, can also comprise backspace, remove, cancel, confirm operational order button, can also comprise handwriting input person's handwriting, can also comprise input frame, input cursor, the input character of of short duration demonstration, for pointing out user the wild-character of input character number, can also comprise word or figure for pointing out user how to operate, can also comprise the dialog box information that user ejects in the time of input or operating mistake.
Beneficial effect of the present invention is: touch display unit and the cipher-code input method of a kind of safety input of the present invention encrypted message, compared with the touch-screen that adopts coordinate position to encrypt, first guarantee can in the internal memory of intelligent operating system, not occur that user cipher expressly, secondly by adopting independently processor to generate User Interface image, under the prerequisite guaranteeing safety for user provides good interactive experience.Compare with existing product and only increase a small amount of hardware module or circuit cost, substantially do not affect the design of hardware and software of original system, substantially do not affect equipment appearance design, can be widely used in needing the smart mobile phone of high security cipher input and dull and stereotyped computer product, the product scope such as special finance device and various sector application custom service terminals based on touch display screen, provide safety guarantee for paying by mails.
Accompanying drawing explanation
Fig. 1 is the touch display unit structured flowchart that the present invention inputs safely encrypted message;
Fig. 2 is the touch display unit cipher-code input method process flow diagram that the present invention inputs safely encrypted message;
Fig. 3 is screen picture synthetic example 1 schematic diagram of the present invention;
Fig. 4 is screen picture synthetic example 2 schematic diagram of the present invention;
Fig. 5 is specific embodiment of the invention figure.
Embodiment
The touch display unit structured flowchart of safety input encrypted message as shown in Figure 1, comprise touch-screen 11, touch-screen driver module 12, show module 13, screen display module 14, microprocessor 15, microprocessor 15 by screen display module 14 with show that module 13 is connected, touch-screen 11 touches user the co-ordinate position information operating and sends into microprocessor 15 on touch-screen by touch-screen driver module 12.
Touch-screen 11 can be capacitance touch screen, electric resistance touch screen, infrared touch panel, piezoelectric type touch screen, surface acoustic wave or ultrasonic touch screen.Touch-screen 11 can be touch-screen body independently, can be also the integrated touch display screen integrating with described demonstration module 13.
Touch-screen 11 can touch operation according to user and produce electro-induction signal.The electro-induction signal that touch-screen driver module 12 can produce described touch-screen be converted into the co-ordinate position information that user touches operation and export to microprocessor 15.
Show that module 13 comprises display screen, display screen kind is including but not limited to cathode ray tube (CRT), LCDs (LCD), Organic Light Emitting Diode screen (OLED), electric ink display screen (EINK).Showing that module 13 can receive the vision signal of input and be converted to image shows, its receivable incoming video signal form is including but not limited to RGB, CPU, MDDI, MIPI DSI, MIPI DPI, LVDS, TMDS, HDMI, DVI, eDP, DisplayPort, MHL, VGA, and S-VIDEO.
At screen display (On Screen Display, OSD) module 14 has at least one road vision signal inputting interface, can, for receiving from the vision signal of system, there is at least one road vision signal output interface simultaneously, can be for to described demonstration module 13 outputting video signals.
On screen display module 14 can be by the video signal image of the system input of being added at screen display (OSD) image and the vision signal of result images is outputed to demonstration module 13 of the present invention show.
Microprocessor 15 can be created on screen display (OSD) image and export at screen display module 14, or outputs a control signal to describedly at screen display module 14, described in controlling, is created on screen display (OSD) image at screen display module 14.
Cipher-code input method process flow diagram as shown in Figure 2: when beginning, microprocessor 15 is in non-Password Input pattern, under this pattern, directly the image of system output is transmitted to described demonstration module 13 in screen display (OSD) module 14 and shows, the co-ordinate position information that the user that microprocessor 15 produces touch-screen driver module 12 simultaneously touches operation on touch-screen is all transmitted to system.
Password Input process sends (step 21) input password request from system to microprocessor 15, microprocessor 15 enters Password Input pattern (step 22), stop touching on touch-screen to system forwards user the co-ordinate position information of operation, generating cipher inputting interface image or be controlled at screen display module generating cipher inputting interface image, describedly outputs to interface for password input image described demonstration module 13 on system video image and shows as being superimposed upon at display image screen at screen display module 14.
User is inputted password or is sent backspace by the virtual key in click interface for password input and/or the hand-written mode of handwriting area in interface for password input, remove, cancel, confirm operational order (step 23), the co-ordinate position information that user is touched operation by touch-screen driver module 12 is sent into microprocessor 15, microprocessor 15 operates and upgrades interface for password input demonstration according to user, including but not limited to: in the time that user's finger is pressed sub-screen virtual key, highlighted this virtual key region is to user's vision operational feedback, in the time that frameing out virtual key, user's finger cancels highlighted this virtual key region to user's vision operational feedback, in the time that pointing continuous slip, user draws finger sliding track on screen, click or provide when the character of finger sliding input is invalid or illegal miscue dialog box user, in the time that pressing help button, user shows help information, after successfully inputting a character, user in text box, shows the character that user inputs, after successfully inputting a character, user shows with asterisk wildcard (commonly use but be not limited to *) in text box, etc..
Fig. 3,4 is synthetic two the embodiment schematic diagram of screen picture, Fig. 3,4 have provided respectively interface for password input as at display image screen and the synthetic schematic diagram of system output image, in Fig. 3,31 is video images of system output, the 32nd, microprocessor 15 is that generate or be controlled at use virtual key mode that screen display module 14 generates and input the interface for password input example images of password, the 33rd, at screen display module 14 using 32 as be superimposed upon the example images that outputs to described demonstration module 13 on image 31 at display image screen, in Fig. 4,34 is video images of system output, the 35th, microprocessor 15 that generate or be controlled at that screen display module 14 generates input the interface for password input example images of password by handwriting input mode, the 36th, at screen display module 14 using 35 as be superimposed upon the example images that outputs to described demonstration module 13 on image 34 at display image screen, in practical application, can obtain the stack visual effect to User-friendly according to designing requirement with in the mode such as the simple image masking of hardware capability choice for use or alpha blended (Alpha Blending) of screen display module 14.
Microprocessor 15 receives that user operates and upgrades interface for password input (step 23) afterwards at every turn, judge whether Password Input operation completes (step 24A), judgement according to being: user has sent the instruction of input and the character quantity of input and form and has met password requirement by clicking virtual key or finger sliding, or user sends by clicking virtual key or finger sliding the instruction of cancelling input;
If input operation has been judged as, microprocessor returns to step 23 and waits for further input or operation of user; If input operation completes (step 24B), if user successfully inputs password, microprocessor 15 sends to system after user is inputted to password encryption, if user cancels Password Input, microprocessor 15 apprizing system users cancel Password Input;
Last microprocessor 15 exits Password Input state (step 25), remove interface for password input image, and output order be controlled at screen display module 14 recover by system video image be directly transmitted to show module 13 show, the user that simultaneously microprocessor 15 recovers to produce to system forwards touch-screen driver module 12 touches the co-ordinate position information operating on touch-screen, and so far user inputs cryptographic processes and finishes.
Specific embodiment is as shown in Figure 5: select 24 common look RGB interface LCD modules to show module 41 as the LCD in device of the present invention; Select common integrated touch screen to drive the capacitance touch screen module of chip as the touch-screen in device of the present invention and touch-screen driver module 42; Selection is built in the video frequency processing chip of screen display (OSD) function, for example Intersil/Techwell TW8835 chip as in device of the present invention at screen display module 43, this chip has 24 look rgb video signal inputting interfaces, for receiving system vision signal, there are 24 look rgb video signal output interfaces, for exporting composograph to described demonstration module, built-in micro controller unit (MCU) and at screen display (OSD) engine, can be connected microprocessor and be accepted operational order by I2C interface; Select the microprocessor of built-in hardware encipher unit, for example, be usually used in the Maxim MAXQ1850 chip of financial security code keypad, as the microprocessor 43 in device of the present invention.
Claims (9)
1. the touch display unit of a safety input encrypted message, it is characterized in that, comprise touch-screen, touch-screen driver module, show module, at screen display module, microprocessor, microprocessor is by being connected with demonstration module at screen display module, microprocessor is connected with system primary processor, receive the vision signal from system at screen display module, the co-ordinate position information that touch-screen touches operation by touch-screen driver module by user is sent into microprocessor, receive the control signal of microprocessor at screen display module, Overlapping display image in the vision signal of system.
2. the touch display unit of inputting safely according to claim 1 encrypted message, is characterized in that, described touch-screen is capacitance touch screen, electric resistance touch screen, infrared touch panel, piezoelectric type touch screen, the one in surface wave touch-screens, ultrasonic touch screen.
3. the touch display unit of safety input encrypted message according to claim 1, is characterized in that, described touch-screen can be touch-screen body independently, can be also the integrated touch display screen integrating with described demonstration module.
4. input safely according to claim 1 the touch display unit of encrypted message, it is characterized in that, described touch-screen receives the electro-induction signal that user touches generation and send touch-screen driver module, and touch-screen driver module is converted to user and touches the coordinate information output of operation.
5. the touch display unit of inputting safely according to claim 1 encrypted message, is characterized in that, the vision signal that described demonstration module receives input is also converted to image demonstration.
6. input safely according to claim 1 the touch display unit of encrypted message, it is characterized in that, described have at least one road vision signal inputting interface at screen display module, for receiving the vision signal from system, there is at least one road vision signal output interface, for to described demonstration module outputting video signal simultaneously.
7. input safely according to claim 1 the touch display unit of encrypted message, it is characterized in that, described microprocessor is created on display image screen and exports at screen display module, or output a control signal at screen display module, be controlled at screen display module and be created on display image screen.
8. a touch display unit cipher-code input method for safety input encrypted message, comprises the touch display unit of input encrypted message safely, it is characterized in that, specifically comprises the steps:
1) system is sent the request that starts input cipher mode to microprocessor;
2) microprocessor enters Password Input state, stop sending user to system and on touch-screen, touch the co-ordinate position information operating, generating cipher inputting interface image is also fed in screen display module, or be controlled at screen display module generating cipher inputting interface image, at screen display module, interface for password input image outputed to described demonstration module displays as being superimposed upon at display image screen on system video image;
3) user is inputted password or is sent backspace, removing, cancellation, confirmation operational order by the virtual key in click interface for password input and/or the hand-written mode of handwriting area in interface for password input, the co-ordinate position information that user is touched operation by touch-screen driver module is sent into microprocessor, and microprocessor operates and upgrades interface for password input demonstration according to user;
4), after microprocessor receives that user operates at every turn, judge whether Password Input operation completes; If input operation does not complete, microprocessor returns to step 3) and waits for further input or operation of user; If input operation has completed and user successfully inputs password, microprocessor sends to system after user is inputted to password encryption; If input operation has completed and user cancels Password Input, microprocessor apprizing system user cancels Password Input;
5) microprocessor exits Password Input state, remove interface for password input image, and output order is controlled at screen display module and recovers system video image to be directly transmitted to demonstration module displays, simultaneously microprocessor recovery touches the co-ordinate position information operating on touch-screen to system forwards user.
9. input safely according to claim 8 the touch display unit cipher-code input method of encrypted message, it is characterized in that, described interface for password input image, can comprise the virtual digit keyboard being formed by numerical key, can also comprise by numeral, letter, the virtual portfolio keyboard of system characters composition, can also comprise backspace, remove, cancel, confirm operational order button, can also comprise handwriting input person's handwriting, can also comprise input frame, input cursor, the input character of of short duration demonstration, for pointing out user the wild-character of input character number, can also comprise word or figure for pointing out user how to operate, can also comprise the dialog box information that user ejects in the time of input or operating mistake.
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| CN201410103439.7A CN103824033A (en) | 2014-01-02 | 2014-03-20 | Touch display device for safely inputting password information and password input method |
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| CN201410103439.7A CN103824033A (en) | 2014-01-02 | 2014-03-20 | Touch display device for safely inputting password information and password input method |
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| CN104156642A (en) * | 2014-07-22 | 2014-11-19 | 杭州晟元芯片技术有限公司 | Security password input system and method based on security touch screen control chip |
| CN104820573A (en) * | 2015-05-27 | 2015-08-05 | 南京芯度电子科技有限公司 | Safety human-computer interactive interface system and implementation method thereof |
| CN104850770A (en) * | 2015-06-05 | 2015-08-19 | 深圳市智诺微智能电子科技有限公司 | Gesture password input virtual keyboard and application method |
| CN104866129A (en) * | 2014-07-09 | 2015-08-26 | 深圳市证通电子股份有限公司 | Computing device and password input method thereof |
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Application publication date: 20140528 |