CN107563209A - Touch-screen PIN input methods and device based on Android - Google Patents
Touch-screen PIN input methods and device based on Android Download PDFInfo
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- CN107563209A CN107563209A CN201710750711.4A CN201710750711A CN107563209A CN 107563209 A CN107563209 A CN 107563209A CN 201710750711 A CN201710750711 A CN 201710750711A CN 107563209 A CN107563209 A CN 107563209A
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- Prior art keywords
- safety
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Abstract
The invention discloses a kind of touch-screen PIN input methods and device based on Android, comprise the following steps:Receive safety keyboard and establish request, generation random code is asked according to establishing;Random code is sent to display module, safety keyboard is shown according to random code correspondence establishment safety keyboard, and by top layer UI;The input coordinate data on safety keyboard are gathered by touch modules, and are sent to safety chip;Password is inputted according to corresponding to being calculated input coordinate data and random code, and reports android system.This programme is to carry out key preservation and encryption and decryption by safety chip, the safe security in android system of hardware level, can preferably protect the data being stored in safety chip;Safety keyboard is established by random code, and shown by top UI, safety keyboard will not be covered by the keyboard of other application in android system;Display module and touch modules can more preferably protect user input data each in different internal storage state spaces.
Description
Technical field
The present invention relates to Android to encrypt input method, especially relates to a kind of touch-screen based on Android
PIN input methods and device.
Background technology
At present, the code keypad for being used to input password in android system is by directly ejecting cryptographic key using APK
Disk interface, by the other application in system to covering password may be caused not to be successfully entered when inputing password, and
Display screen and touch-screen are not handled separately during inputing password, it is also in the corresponding inner calculating of application to calculate password
, this mode security for open android system platform can not ensure.
With comprehensive popularization of intelligent movable equipment, a variety of payment devices are all using built-in android system, and pass through
The mode of corresponding character carries out Password Input and determination in touch display screen.Such as POS, POS are a kind of with non-existing
The point-of-sale terminal of golden settlement function, it is widely used in the places such as supermarket, chain store, market, restaurant.Because it is related to bank card
Transaction, has very high requirement, it is therefore necessary to improve safety of the user when inputting encrypted message to the security of trading password.
In order to improve the security that user inputs password, cipher input technique more advanced than conventional art need to be used.
The content of the invention
In order to solve the defects of above-mentioned prior art, it is an object of the invention to provide a kind of touch-screen based on Android
PIN input methods and device, for safe input user cipher in android system.
To reach above-mentioned purpose, the technical scheme is that:
A kind of touch-screen PIN input methods based on Android, comprise the following steps:
Receive safety keyboard and establish request, generation random code is asked according to establishing;
Random code is sent to display module, safety is shown according to random code correspondence establishment safety keyboard, and by top layer UI
Keyboard;
The input coordinate data on safety keyboard are gathered by touch modules, and are sent to safety chip;
Password is inputted according to corresponding to being calculated input coordinate data and random code, and reports android system.
Further, the reception safety keyboard is established after request step, further comprising the steps of,
Judge described establish asks whether possess PINPAD authorities, if possessing, generation random code is asked according to establishing.
Further, the input coordinate data gathered by touch modules on safety keyboard, and it is sent to safe core
Piece step, including,
While input coordinate data are sent into safety chip, stop input coordinate data being sent to Android
System.
Further, the input coordinate data gathered by touch modules on safety keyboard, and it is sent to safe core
After piece step, including,
No. * is shown in input password display location according to the input coordinate data received, instead of actually entering character.
Further, it is described that password is inputted according to corresponding to being calculated input coordinate data and random code, and report
Android system step, including,
Judge whether safety keyboard normally exits, if normally exiting, then the input password is reported into Android systems
System.
The invention also provides a kind of touch-screen PIN input units based on Android, including,
Safety chip, request is established for receiving safety keyboard, generation random code is asked according to establishing, and, according to input
Coordinate data and random code input password corresponding to being calculated, and report android system, safety chip connection display module
And touch modules;
Display module, for receiving random code, according to random code correspondence establishment safety keyboard, and shown and pacified by top layer UI
Full keyboard;
Touch modules, for gathering the input coordinate data on safety keyboard, and it is sent to safety chip;
Application module, request is established for sending safety keyboard, and receive and finally enter password, application module connection safety
Chip.
Further, the safety chip also includes the first judge module, for judging described establish asks whether to possess
PINPAD authorities, if possessing, safety chip then asks generation random code according to foundation.
Further, the touch modules are used for while input coordinate data are sent into safety chip, and stopping will
Input coordinate data are sent to android system.
Further, the safety chip also includes hidden module, for according to the input coordinate data that receive defeated
Enter password display location and show No. *, instead of actually entering character.
Further, the safety chip also includes the second judge module, for judging whether safety keyboard normally moves back
Go out, if normally exiting, then the input password is reported into android system.
The beneficial effects of the invention are as follows:This programme is to carry out key preservation and encryption and decryption by safety chip, hardware level
The safe security in android system, it can preferably protect the data being stored in safety chip;Pass through random code
Safety keyboard is established, and is shown by top UI, safety keyboard will not be covered by the keyboard of other application in android system;
Display module and touch modules can more preferably protect user input data each in different internal storage state spaces.
Brief description of the drawings
Fig. 1 is a kind of schematic flow sheet of the touch-screen PIN input methods based on Android of one embodiment of the invention;
Fig. 2 is a kind of schematic flow sheet of the touch-screen PIN input methods based on Android of another embodiment of the present invention;
Fig. 3 is the schematic flow sheet that one embodiment of the invention hides input character;
Fig. 4 is a kind of structured flowchart of the touch-screen PIN input units based on Android of one embodiment of the invention;
Fig. 5 is the structured flowchart of one embodiment of the invention safety chip.
Embodiment
To illustrate the thought and purpose of the present invention, the present invention is done further below in conjunction with the drawings and specific embodiments
Explanation.
Part name definition is as follows in specification:
Android, it is a kind of freedom based on Linux and the operating system of open source code, is mainly used for movement and sets
It is standby, such as smart mobile phone, tablet personal computer and other mobile terminals, by Google companies and open mobile phone alliance leader and develop.
APK, it is AndroidPackage abbreviation, i.e. Android installation kits (apk).APK is similar Symbian Sis
Or Sisx file format, by the way that APK file to be passed directly to perform in Android simulator or Android phone and can pacify
Dress.
Safety chip, it is trusted console module, key generation, the device of encryption and decryption can independently be carried out by being one, internal
Possess independent processor and memory cell, key and characteristic can be stored, encryption and Security Authentication Service are provided for system.
It is encrypted with safety chip, key is stored in hardware, and stolen data can not decrypt, so as to protect business privacy sum
According to safety.
A kind of reference picture 1, touch-screen PIN input methods based on Android, comprises the following steps:
S10, safety keyboard foundation request is received, generation random code is asked according to establishing.
S20, random code is sent to display module, shown according to random code correspondence establishment safety keyboard, and by top layer UI
Safety keyboard;
S30, by touch modules the input coordinate data on safety keyboard are gathered, and be sent to safety chip;
S40, password is inputted according to corresponding to being calculated input coordinate data and random code, and report android system.
For step S10, application module send safety keyboard establish request, safety chip receive after according to actual feelings
Condition, generates the random code for establishing safety keyboard, and random code is used for the safety keyboard for generating character random distribution, and random code
In include coordinate data corresponding to kinds of characters, when safety chip receives one group of input coordinate data, safety chip energy
It is enough that character is inputted according to corresponding to being calculated the decoded information that input coordinate data and random code include that is, corresponding defeated
Enter password.The encryption key of data is stored in safety chip in random code, and whole encryption process is all (hard in safety chip
Part) in carry out, securely and reliably, even if being stolen input coordinate data, can not also obtain actual input password.
Specifically, after step S10, it is further comprising the steps of,
S11, judge to establish whether request possesses PINPAD authorities;
If S12, possessing, generation random code is asked according to establishing.
For step S11 and S12, safety chip can judge whether foundation request possesses after foundation request is received
PINPAD authority, only when foundation request meets PINPAD authority, it just can further generate random code;If do not possess
During PINPAD authorities, then act, leave it at that without next step.
For step S20, after safety chip generation random code, send to display module, display module is according to receiving
Random code establish safety keyboard, the irregular arrangement of character on safety keyboard, the safety keyboard established according to different random code
On character arrangements it is different.
After safety keyboard foundation, display module shows safety keyboard by the top layer UI of android system, that is,
Display module is arranged to the display program of highest priority in the display system Surfaceflinger of android system, this
Sample safety keyboard at work, can be constantly in the superiors of display interface, can not be covered by other application, ensure Password Input
Process coherent and efficiently.
For step S30, input coordinate data of the user on safety keyboard can be gathered by touch modules, touch mould
The input coordinate data being collected into are sent back to safety chip by block again, transfer to safety chip to continue with.Wherein, display module and
Touch modules can more preferably protect user input data each in different internal storage state spaces.
Specifically, specifically, step S30 is specifically further comprising the steps of:
While input coordinate data are sent into safety chip, stop input coordinate data being sent to Android
System.
For above-mentioned steps, while input coordinate data are sent into safety chip, stop input coordinate data
It is sent to android system or corresponding application module.Input coordinate data be safety chip processing, android system or
Corresponding application module without corresponding processing authority, not by input coordinate data be sent to android system or it is corresponding should
With module, it is possible to reduce the stolen possibility of data, improve the security of whole scheme.
For step S40, safety chip calculates the password actually entered according to input coordinate data and random code, will be close
Code sends to android system or corresponding application module and carries out password authentification.
Specifically, step S40 comprises the following steps:
S41, judge whether safety keyboard normally exits;
S42, if normally exiting, then exit safety keyboard, and input password is reported into android system.
For step S41 and S42, be preset with safety keyboard " it is determined that " and " cancellation " two options, when user's input is close
After code terminates, so following three kinds of possibility be present, selection " it is determined that ", selection " cancellation " and compulsory withdrawal.Wherein, when user selects
Select " it is determined that " when, be judged to normally exiting state, represent this input password it is effective, and will input password from safety chip send
To application module;When user selects " cancellations " or during compulsory withdrawal, be determined as it is improper exit state, this interval scale this input
Password useless, any operation is not carried out to input password.
Specifically, after step S30, it is further comprising the steps of:
The input coordinate data that S50, basis receive show No. * in input password display location, instead of actually entering word
Symbol.
For step S50, user inputted on touch interface corresponding to after character, a character is often inputted, just in safety
One No. * is shown on the input display location of keyboard, with No. *, instead of the actual characters of input, other people can be avoided directly to see
The specific character currently inputted to user, improve security.
This programme is mainly to be applied to the higher mobile intelligent terminal of security requirement, especially relates to safety requirements pole
High payment devices, such as POS, naturally it is also possible in the equipment confirmed applied to other needs by inputting password.
The present invention a kind of touch-screen PIN input methods based on Android by safety chip carry out key preserve and
Encryption and decryption, the safe security in android system (software levels) of hardware level, it can preferably protect and be stored in safety
Data in chip;Safety keyboard is established by random code, and shown by top UI, safety keyboard will not be by Android systems
The keyboard covering of other application in system;Display module and touch modules, can be more preferable each in different internal storage state spaces
Protect user input data.
With reference to figure 4 and Fig. 5, the invention also provides a kind of touch-screen PIN input units based on Android, including,
Safety chip 10, request is established for receiving safety keyboard, generation random code is asked according to establishing, and, according to defeated
Enter coordinate data and corresponding input password is calculated in random code, and report android system, the connection display of safety chip 10
Module 20 and touch modules 30;
Display module 20, for receiving random code, shown according to random code correspondence establishment safety keyboard, and by top layer UI
Safety keyboard;
Touch modules 30, for gathering the input coordinate data on safety keyboard, and it is sent to safety chip 10;
Application module 40, request is established for sending safety keyboard, and receive and finally enter password, application module 40 connects
Safety chip 10.
Application module 40 sends safety keyboard and establishes request, and safety chip 10 is used after receiving according to actual conditions, generation
In the random code for establishing safety keyboard, random code is used for the safety keyboard for generating character random distribution, and includes in random code
Coordinate data corresponding to kinds of characters, when safety chip 10 receives one group of input coordinate data, safety chip 10 being capable of root
The decoded information included according to input coordinate data and random code be calculated corresponding to input character, that is, it is corresponding input it is close
Code.The encryption key of data is stored in safety chip 10 in random code, and whole encryption process is all (hard in safety chip 10
Part) in carry out, securely and reliably, even if being stolen input coordinate data, can not also obtain actual input password.
After safety chip 10 generates random code, send to display module 20, display module 20 is random according to what is received
Code establishes safety keyboard, the irregular arrangement of character on safety keyboard, the word on safety keyboard established according to different random code
Symbol arrangement is different.
After safety keyboard foundation, display module 20 shows safety keyboard by the top layer UI of android system, also
It is the display journey for display module 20 being arranged in the display system Surfaceflinger of android system highest priority
Sequence, such safety keyboard at work, can be constantly in the superiors of display interface, can not be covered by other application, ensure close
Code input process coherent and efficiently.
Input coordinate data of the user on safety keyboard can be gathered by touch modules 30, touch modules 30 will be received again
The input coordinate data collected send back to safety chip 10, transfer to safety chip 10 to continue with.Wherein, display module 20 and touch
Module 30 is touched each in different internal storage state spaces, can more preferably protect user input data.
Wherein, safety chip 10 also includes the first judge module 11, for judging to establish whether request possesses PINPAD power
Limit, if possessing, safety chip 10 then asks generation random code according to foundation.
Specifically, safety chip 10 after foundation request is received, can judge whether foundation request possesses PINPAD
Authority, only when foundation request meets PINPAD authority, it just can further generate random code;If do not possess PINPAD power
In limited time, then act, leave it at that without next step.
Wherein, safety chip 10 also includes hidden module 13, for close in input according to the input coordinate data received
Code display location shows No. *, instead of actually entering character.
Specifically, user inputted on touch interface corresponding to after character, a character is often inputted, just in safety keyboard
Input and one No. * is shown on display location, with No. *, instead of the actual characters of input, other people can be avoided to be immediately seen user
The specific character currently inputted, improve security.
Wherein, safety chip 10 also includes the second judge module 12, for judging whether safety keyboard normally exits, if
Normally to exit, then input password is reported into android system.
Be preset with specific safety keyboard " it is determined that " and " cancellation " two options, after user, which inputs password, to terminate,
So following three kinds of possibility be present, selection " it is determined that ", selection " cancellation " and compulsory withdrawal.Wherein, when user selection " it is determined that " when,
Be judged to normally exiting state, represent this input password it is effective, and by input password sent from safety chip 10 to using mould
Block 40;When user selects " cancellations " or during compulsory withdrawal, be determined as it is improper exit state, this interval scale this input password without
Effect, any operation is not carried out to input password.
Wherein, touch modules 30 are used for while input coordinate data are sent into safety chip 10, and stopping will input
Coordinate data is sent to android system.
While input coordinate data are sent into safety chip 10, stop input coordinate data being sent to
Android system or corresponding application module 40.Input coordinate data are handled in safety chip 10, android system or right
The application module 40 answered without corresponding processing authority, not by input coordinate data be sent to android system or it is corresponding should
With module 40, it is possible to reduce the stolen possibility of data, improve the security of whole scheme.
This programme is mainly to be applied to the higher mobile intelligent terminal of security requirement, especially relates to safety requirements pole
High payment devices, such as POS, naturally it is also possible in the equipment confirmed applied to other needs by inputting password.
A kind of touch-screen PIN input units based on Android of the present invention carry out key preservation by safety chip 10
And encryption and decryption, the safe security in android system (software levels) of hardware level, it can preferably protect and be stored in peace
Data in full chip 10;Safety keyboard is established by random code, and shown by top UI, safety keyboard will not be by
The keyboard covering of other application in android system;Display module 20 and touch modules 30 are each in different internal storage states
Space, it can more preferably protect user input data.
Claims (10)
1. a kind of touch-screen PIN input methods based on Android, it is characterised in that comprise the following steps:
Receive safety keyboard and establish request, generation random code is asked according to establishing;
Random code is sent to display module, safety keyboard is shown according to random code correspondence establishment safety keyboard, and by top layer UI;
The input coordinate data on safety keyboard are gathered by touch modules, and are sent to safety chip;
Password is inputted according to corresponding to being calculated input coordinate data and random code, and reports android system.
2. the touch-screen PIN input methods based on Android as claimed in claim 1, it is characterised in that described to receive safety
Keyboard is established after request step, further comprising the steps of,
Judge described establish asks whether possess PINPAD authorities, if possessing, generation random code is asked according to establishing.
3. the touch-screen PIN input methods based on Android as claimed in claim 1, it is characterised in that described to pass through touch
Input coordinate data on module collection safety keyboard, and safety chip step is sent to, including,
While input coordinate data are sent into safety chip, stop input coordinate data being sent to android system.
4. the touch-screen PIN input methods based on Android as claimed in claim 1, it is characterised in that described to pass through touch
Input coordinate data on module collection safety keyboard, and be sent to after safety chip step, including,
No. * is shown in input password display location according to the input coordinate data received, instead of actually entering character.
5. the touch-screen PIN input methods based on Android as claimed in claim 1, it is characterised in that described according to input
Coordinate data and random code input password corresponding to being calculated, and report android system step, including,
Judge whether safety keyboard normally exits, if normally exiting, then the input password is reported into android system.
6. a kind of touch-screen PIN input units based on Android, it is characterised in that including safety chip, pacifying for receiving
Full keyboard establishes request, and generation random code is asked according to establishing, and, it is calculated correspondingly according to input coordinate data and random code
Input password, and report android system, safety chip connection display module and touch modules;
Display module, for receiving random code, safety-key is shown according to random code correspondence establishment safety keyboard, and by top layer UI
Disk;
Touch modules, for gathering the input coordinate data on safety keyboard, and it is sent to safety chip;
Application module, request is established for sending safety keyboard, and receive and finally enter password, application module connects safe core
Piece.
7. the touch-screen PIN input units based on Android as claimed in claim 6, it is characterised in that the safety chip
Also include the first judge module, for judge it is described establish whether request possesses PINPAD authorities, if possessing, safety chip then root
Generation random code is asked according to establishing.
8. the touch-screen PIN input units based on Android as claimed in claim 6, it is characterised in that the touch modules
It is additionally operable to while input coordinate data are sent into safety chip, stop input coordinate data being sent to Android systems
System.
9. the touch-screen PIN input units based on Android as claimed in claim 6, it is characterised in that the safety chip
Also include hidden module, for showing No. * in input password display location according to the input coordinate data received, instead of reality
Input character.
10. the touch-screen PIN input units based on Android as claimed in claim 6, it is characterised in that the safe core
Piece also includes the second judge module, for judging whether safety keyboard normally exits, if normally exiting, then by the input
Password reports android system.
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CN111914312A (en) * | 2020-08-07 | 2020-11-10 | 上海方付通商务服务有限公司 | Terminal password keyboard system based on film card hardware and PIN code protection method |
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