CN112419550A - Combined fingerprint password system and operation method - Google Patents
Combined fingerprint password system and operation method Download PDFInfo
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- CN112419550A CN112419550A CN202011227717.1A CN202011227717A CN112419550A CN 112419550 A CN112419550 A CN 112419550A CN 202011227717 A CN202011227717 A CN 202011227717A CN 112419550 A CN112419550 A CN 112419550A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00563—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys using personal physical data of the operator, e.g. finger prints, retinal images, voicepatterns
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Abstract
The invention discloses a combined fingerprint password system and an operation method, wherein the combined fingerprint password system comprises a display switch, a touch screen display, a fingerprint input module, an encryption mode detection module, a memory module, a check module, an execution module, a lock and an error counter; when the fingerprint input device is used for the first time, a fingerprint input function is selected on the touch screen display, the encryption mode is selected to be a serial mode, a parallel mode or a combined mode, and fingerprints are input according to system prompts; when unlocking, selecting an unlocking function on the touch display screen, inputting a fingerprint password according to an encryption mode, checking the fingerprint password by the checking module, if the fingerprint password is wrong, re-inputting and feeding back wrong information to the wrong counter, and if the input fingerprint password is correct, driving the lock to be unlocked by the execution module; the invention combines the diversified complexity of the key password and the uniqueness of the fingerprint password to improve the safety performance, and simultaneously reduces the short board of the key password lock which is easy to forget the password to a certain extent, thereby reducing the risk of the password being cracked by people by adopting a single fingerprint.
Description
Technical Field
The invention relates to the field of fingerprint passwords, in particular to a combined fingerprint password system and an operation method
Background
The safety protection measures used nowadays are mainly traditional mechanical locks, key coded locks and fingerprint coded locks. With the development of science and technology, fingerprint coded locks are more popular. Besides appearance and cost performance, many families are willing to adopt fingerprint locks, and can unlock and enter a door only by entering a fingerprint through an outstretching hand without taking a key when going out, so that a big trouble is solved for people who forget the key for a long time or forget a password easily, and along with the development of science and technology, fingerprint unlocking is gradually popular, and the fingerprint locks are widely used in both mobile phones, security doors and safety boxes.
However, whether unlocking by pressing a button, such as in a bank counter or other places requiring password input, the security performance is not high, because the operation of the button may be captured or remembered by a person, or unlocking by a fingerprint, which is unique, but if once a person's fingerprint information is taken or stolen by a person, the own property and information security are also not guaranteed, and there are certain risks and disadvantages. The traditional encryption mode has more or less uniqueness in storing things, so that no matter a mechanical mode or a fingerprint mode is adopted, the relevant unlocking basis can be collected by a person with a mind to cause property loss of a lock owner.
Based on the thought, along with the rapid development of the current fingerprint unlocking technology, the novel safety protection system is considered to be upgraded based on the invention, and the safety performance is improved based on the prior art.
Disclosure of Invention
The present invention provides a combined fingerprint password system and method, which can improve the security performance by realizing the diversity and uniqueness of the password.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that:
in a first aspect, the present invention provides a combined fingerprint cryptographic system, comprising: the system comprises a touch screen display, a fingerprint input module, an encryption mode detection module, a memory module, a check module, an execution module and a lock;
the touch screen display is used for feeding back an operation instruction issued by a user to the fingerprint input module and the encryption mode detection module through touch identification, displaying the system state and guiding the user to perform various operations; the fingerprint encryption module is used for identifying the number and the sequence of the fingerprints and feeding back data to the encryption mode detection module.
The fingerprint input module is used for identifying fingerprint information and feeding back the identified fingerprint information to the memory unit;
the encryption mode detection module is used for recording the number and the sequence of the fingerprints identified by the touch screen display; when a user unlocks the lock, whether an encryption mode formed by the number of fingerprints input in real time and the sequence of the fingerprints is correct or not is checked, and information is fed back to the fingerprint input module;
the memory module is used for memorizing and storing the fingerprint information identified by the fingerprint input module and outputting related information to the checking unit during unlocking;
the checking module is used for comparing and checking the fingerprint information input in real time and the fingerprint information stored by the memory module, and transmitting the execution information to the execution module after the checking is finished;
and the execution module is used for receiving the processing information fed back after the checking of the checking module is finished, issuing an unlocking command and driving the lock to be opened.
The invention has the following beneficial effects:
aiming at the advantages and disadvantages of the traditional key combination lock and the fingerprint lock, the safety performance is improved by combining the diversified complexity of the collected key combination and the uniqueness of the fingerprint combination, and meanwhile, the short board of the key combination lock, which is easy to forget the combination, is reduced to a certain extent, and the risk that the password is cracked by a person who takes a single fingerprint is greatly reduced.
The combined cipher system of the present invention has raised cipher performance in three aspects, including enciphering mode, fingerprint number and unique fingerprint. People are afraid of that the key is shot secretly and is tried out, and the problem can not exist when the fingerprint is unlocked; people are afraid of that the fingerprints are single and easy to copy, and the combined design of a plurality of fingerprints greatly reduces the occurrence of the situation.
Further, the present invention also includes a display switch; the display switch is connected with the touch screen display screen circuit and used for awakening the touch screen display in a standby state.
Further, the present invention also includes an error counter; and the fingerprint verification module is used for receiving the sent feedback information when the encryption mode detection module and the verification module judge that the fingerprint information is wrong, counting the times of fingerprint verification errors and closing the display within preset time after reaching the preset times.
In a second aspect, the present invention further provides a method for operating a combined fingerprint password system, including the following steps:
step one, turning on a display switch to enter a main interface, judging whether the display is used for the first time, if so, entering a step two, and if not, skipping to a step six;
step two, judging whether a fingerprint needs to be input, if so, entering step three, and if not, returning to the main interface;
step three, selecting an encryption mode on the touch screen display;
step four, inputting fingerprints according to the selected encryption mode and system prompt, controlling the encryption mode detection module to identify the number and the sequence of the fingerprints and recording the number and the sequence of the fingerprints, and controlling the fingerprint input module to identify the fingerprint information;
step five, controlling the memory module to store the fingerprint information, successfully inputting the fingerprint, and returning to the main interface;
step six, selecting whether to unlock, entering step seven if unlocking is selected, and returning to the main interface if unlocking is not selected;
inputting fingerprints on the touch screen display according to the encryption mode, and controlling the touch screen display to identify the number and the sequence of the fingerprints; controlling a fingerprint input module to identify fingerprint information and feeding the information back to a checking module;
step eight, comparing the input fingerprint quantity and the fingerprint sequence with the recorded fingerprint quantity and the recorded fingerprint sequence by using an encryption mode detection module, judging whether the input fingerprint quantity and the recorded fingerprint sequence are correct or not, and entering the next step if the input fingerprint quantity and the recorded fingerprint sequence are correct; if not, feeding back the information to an error counter, adding 1 to the failure times, and then jumping to the step ten;
step nine, verifying whether the fingerprint information is correct by using a checking module, and driving an execution module to unlock the lock if the fingerprint information is correct; if not, feeding back the information to an error counter, adding 1 to the failure times, and then jumping to the step ten;
and step ten, judging whether the error frequency is smaller than a preset threshold value, if so, returning to the step seven, and if not, returning to the main interface and preventing unlocking within a specified time.
Furthermore, the encryption mode in step three is a serial mode, a parallel mode or a composite mode.
The beneficial effects of the further scheme are as follows: compared with the traditional single encryption mode, the multiple selectable encryption modes are more complex, and meanwhile, the safety of the coded lock is improved, so that the password is not easy to leak.
Further, the serial mode is as follows: when a user sets a password to input fingerprints, each finger is set with a corresponding number by only pressing one finger each time, the fingerprints with the set number are sequentially pressed according to different sequences, the input fingerprint number and the fingerprint sequence are recorded in the encryption mode detection module, and meanwhile, the fingerprint information is stored in the memory module.
The beneficial effects of the further scheme are as follows: the key password and the fingerprint password are combined, so that the safety and the diversity are improved to a great extent, and the password is not easy to crack by others.
Further, the parallel mode is as follows: when a user sets a password to enter a fingerprint, the user presses a plurality of fingers simultaneously, the number of the fingerprints and the sequence of the fingerprints identified by the touch screen display are recorded in the encryption mode detection module, and meanwhile, the fingerprint information identified by the fingerprint entry module is stored in the memory unit.
Further, the compound mode is as follows: when a user sets a password to enter a fingerprint, the user presses a plurality of fingers every time, the fingerprint number and the fingerprint identified by the touch screen display every time are recorded in the encryption mode detection module according to different combinations and repeated setting times, and meanwhile, the fingerprint information identified by the fingerprint entry module every time is stored in the memory unit.
Drawings
FIG. 1 is a block diagram of a combined fingerprint password system;
FIG. 2 is a flow chart of a combined fingerprint cryptographic method.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
The first embodiment is as follows:
as shown in fig. 1, a combined fingerprint password system in this embodiment includes: the system comprises a touch screen display, a fingerprint input module, an encryption mode detection module, a memory module, a check module, an execution module and a lock;
the touch screen display is used for feeding back an operation instruction issued by a user to the fingerprint input module and the encryption mode detection module through touch identification, displaying the system state and guiding the user to perform various operations; the fingerprint encryption module is used for identifying the number and the sequence of the fingerprints and feeding back data to the encryption mode detection module. The user can select whether to unlock the lock, input the fingerprint, return to the main interface, select the encryption mode and the like on the touch screen display.
The fingerprint input module is used for identifying input fingerprint information when a user inputs a fingerprint, and feeding the identified fingerprint information back to the memory unit to enable the memory unit to store the fingerprint information; when a user unlocks and inputs a fingerprint, the input fingerprint information is identified and fed back to the checking module, and the checking module is enabled to verify whether the fingerprint information is correct or not.
The encryption mode detection module is used for recording the number and the sequence of the fingerprints identified by the touch screen display and the encryption mode selected by the user; when a user unlocks the lock, checking whether an encryption mode formed by the number of fingerprints input in real time and the sequence of the fingerprints is correct, if so, feeding information back to the fingerprint input module, and if not, feeding confidence back to an error counter;
the memory module is used for memorizing and storing fingerprint information identified by the fingerprint input module when a user inputs a fingerprint, and feeding the stored fingerprint information back to the checking unit when the user unlocks, and the fingerprint information is used as a judgment basis for the checking unit to verify whether the fingerprint is correct or not;
the checking module is used for comparing and checking the fingerprint information input in real time and the fingerprint information stored in the memory module, and transmitting the execution information to the execution module or the error counter after the checking is finished; when the fingerprint is checked, a request is sent to the memory module, the stored fingerprint information is called for comparison, if the fingerprint information is correct, the information is fed back to the execution module, and if the fingerprint information is wrong, the information is fed back to the error counter.
And the execution module receives the processing information fed back by the checking module after the checking module judges that the fingerprint information is correct, issues an unlocking command and drives the lock to be opened.
In the embodiment of the invention, the device also comprises a display switch; the display switch is connected with the touch screen display screen circuit and used for awakening the touch screen display in a standby state. When the touch screen is used, the display switch is clicked, so that a system circuit is connected, and the touch screen display screen lights up the system to start working.
In the embodiment of the invention, the device also comprises an error counter; the fingerprint information error checking and correcting device is used for receiving information fed back by the encryption mode detection module and the fingerprint information error checking module when the encryption mode detection module and the fingerprint information error checking module judge that the fingerprint information is wrong, then counting fingerprint correction error times, adding 1 to the error times every time the information feedback is received, and closing the display within preset time after the error times reach preset times, so that a user cannot use the fingerprint information error checking and correcting device, and the error times are initially defaulted to be 0.
Example two:
as shown in fig. 2, the operation method of the combined fingerprint password system in the embodiment includes the following steps:
step one, turning on a display switch to enter a main interface, judging whether the display is used for the first time, if so, entering a step two, and if not, skipping to a step six;
step two, judging whether a fingerprint needs to be input, if so, entering step three, and if not, returning to the main interface;
step three, selecting an encryption mode on the touch screen display;
in the embodiment of the invention, the encryption mode in the third step is a serial mode, a parallel mode or a composite mode.
When the system is used, a user autonomously selects a required encryption mode from the three encryption modes on the touch display screen according to the prompt in the system prompt.
In the embodiment of the invention, the serial mode is as follows: when a user sets a password to input fingerprints, each finger is set with a corresponding number by only pressing one finger each time, the fingerprints with the set number are sequentially pressed according to different sequences, the input fingerprint number and the fingerprint sequence are recorded in the encryption mode detection module, and meanwhile, the fingerprint information is stored in the memory module.
If only one finger is pressed for the first time, the signal is converted into a digital electric signal through a sensor such as a pressure sensor and the like for judgment, and the judgment is in a serial mode. Then judging whether the finger dropping sequence and the finger dropping area are correct, and then judging whether the fingerprint data are correct. The input sequence and the number are acquired by sequencing the finger falling sequence by the digital circuit according to the time sequence and the one-to-one correspondence ratio of the finger falling sequence to the stored fingerprints in the same clock sequence of the correct fingerprints, the fingerprint data can be judged without fully pressing, the fingerprint data can be immediately judged by pressing the sequence and the area of one finger according with the time axis, and the unlocking efficiency is not influenced.
In the embodiment of the invention, the parallel mode is as follows: when a user sets a password to enter a fingerprint, the user presses a plurality of fingers simultaneously, the number of the fingerprints and the sequence of the fingerprints identified by the touch screen display are recorded in the encryption mode detection module, and meanwhile, the fingerprint information identified by the fingerprint entry module is stored in the memory unit.
If a plurality of fingers are pressed down at the same time for the first time (principle is the same as the serial mode), the parallel mode is judged. Then judging whether the number and the area of the finger falls are correct or not, and finally judging whether the fingerprint data are correct or not. The simultaneity of the parallel mode is relative, because several fingers are unlikely to fall down absolutely at the same time, there is a certain time delay, and the synchronization is completed by a time delay clock circuit. After the number and the area are judged to be correct according to the digital signals, whether the comparison is correct or not is judged in a one-to-one correspondence mode according to the fingerprint data recorded in each area.
In the embodiment of the invention, the compound mode is as follows: when a user sets a password to enter a fingerprint, the user presses a plurality of fingers every time, the fingerprint number and the fingerprint identified by the touch screen display every time are recorded in the encryption mode detection module according to different combinations and repeated setting times, and meanwhile, the fingerprint information identified by the fingerprint entry module every time is stored in the memory unit.
Step four, inputting fingerprints according to the selected encryption mode and system prompt, controlling the encryption mode detection module to identify the number and the sequence of the fingerprints and record the fingerprint, controlling the fingerprint input module to identify fingerprint information, and feeding the identified information back to the memory module;
the encryption mode can let the user select when typing in the fingerprint, then accomplish according to the guide and type, save to the terminal, only need press according to the mode of oneself during the unblanking, and the system can automatic judgement.
The identification of the number and the sequence of the fingerprints is realized by collecting the information of analog signals by a temperature sensor and a pressure sensor under a display screen, converting the information into digital electric signals by a digital-to-analog converter and generating corresponding characteristic data according to the overall characteristics so as to be convenient to compare or store. The judgment of the fingerprint information mainly depends on the overall characteristics of the fingerprint, such as the shape of a vein and triangular points, and different fingerprints can generate different fingerprint data which can not be corresponding naturally.
Step five, controlling the memory module to store the fingerprint information transmitted by the fingerprint input module, and returning the fingerprint information to the system main interface after the fingerprint input is successful;
step six, selecting whether to unlock, entering step seven if unlocking is selected, and returning to the main interface if unlocking is not selected;
inputting fingerprints on the touch screen display according to the encryption mode, and controlling the touch screen display to identify the number and the sequence of the fingerprints; and the fingerprint input control module identifies fingerprint information and feeds the information back to the checking module.
Step eight, comparing the input fingerprint quantity and the fingerprint sequence with the recorded fingerprint quantity and the recorded fingerprint sequence by using an encryption mode detection module, judging whether the input fingerprint quantity and the recorded fingerprint sequence are correct or not, and entering the next step if the input fingerprint quantity and the recorded fingerprint sequence are correct; if not, feeding back the information to an error counter, adding 1 to the failure times, and then jumping to the step ten;
step nine, the checking module is used for verifying whether the fingerprint information is correct or not by taking the fingerprint information stored in the memory module as a judgment basis, if so, the information is fed back to the execution module, and the execution module drives the lock to be opened after receiving the feedback information; if not, feeding back the information to an error counter, adding 1 to the failure times, and then jumping to the step ten;
and step ten, judging whether the error frequency is smaller than a preset threshold value, if so, returning to the step seven to re-input the fingerprint, and if not, returning to the main interface of the system and preventing unlocking within a specified time.
It will be appreciated by those of ordinary skill in the art that the examples provided herein are intended to assist the reader in understanding the principles of the invention and are to be construed as being without limitation to such specifically recited examples and embodiments. Those skilled in the art can make various other specific changes and combinations based on the teachings of the present invention without departing from the spirit of the invention, and these changes and combinations are within the scope of the invention.
Claims (8)
1. A modular fingerprint cryptographic system, comprising: the system comprises a touch screen display, a fingerprint input module, an encryption mode detection module, a memory module, a check module, an execution module and a lock;
the touch screen display is used for feeding back an operation instruction issued by a user to the fingerprint input module and the encryption mode detection module through touch identification, and simultaneously displaying a system state to guide the user to carry out various operations; the fingerprint encryption mode detection module is used for identifying the number and the sequence of the fingerprints and feeding back related data to the encryption mode detection module.
The fingerprint input module is used for identifying fingerprint information and feeding back the identified fingerprint information to the memory unit;
the encryption mode detection module is used for recording the number and the sequence of the fingerprints identified by the touch screen display; when a user unlocks the lock, checking whether an encryption mode formed by the number of fingerprints input in real time and the sequence of the fingerprints is correct or not, and feeding information back to the fingerprint input module;
the memory module is used for memorizing and storing the fingerprint information identified by the fingerprint input module and outputting related information to the checking unit during unlocking;
the checking module is used for comparing and checking the fingerprint information input in real time and the fingerprint information stored in the memory module, and transmitting the execution information to the execution module after the checking is finished;
and the execution module is used for receiving the processing information fed back after the checking of the checking module is finished, issuing an unlocking command and driving the lock to be opened.
2. The combined fingerprint password system of claim 1, further comprising a display switch; the display switch is connected with the touch screen display and used for waking up the touch screen display in a standby state.
3. The combined fingerprint password system of claim 1, further comprising an error counter; and the error counter is used for receiving the sent feedback information when the encryption mode detection module and the check module judge that the fingerprint information is wrong, counting the fingerprint check error times, and closing the display within a specified time after the preset times are reached.
4. A method of operation using the combined fingerprint password system of any one of claims 1, 2 or 3, comprising the steps of:
step one, turning on the display switch to enter a main interface, judging whether the display switch is used for the first time, if the display switch is used for the first time, entering step two, and if the display switch is not used for the first time, skipping to step six;
step two, judging whether a fingerprint needs to be input, if so, entering step three, and if not, returning to the main interface;
step three, selecting an encryption mode on the touch screen display;
step four, inputting fingerprints according to the selected encryption mode and system prompts, controlling the encryption mode detection module to identify the number and the sequence of the fingerprints and recording the number and the sequence of the fingerprints, and controlling the fingerprint input module to identify fingerprint information;
step five, controlling the memory module to store the fingerprint information, successfully inputting the fingerprint, and returning to the main interface;
step six, selecting whether to unlock, entering step seven if unlocking is selected, and returning to the main interface if unlocking is not selected;
inputting fingerprints on the touch screen display according to an encryption mode, and controlling the touch screen display to identify the number and the sequence of the fingerprints; controlling the fingerprint input module to identify fingerprint information and feeding the information back to the checking module;
step eight, comparing the input fingerprint quantity and the fingerprint sequence with the recorded fingerprint quantity and the recorded fingerprint sequence by using the encryption mode detection module, judging whether the input fingerprint quantity and the fingerprint sequence are correct or not, and entering the next step if the input fingerprint quantity and the fingerprint sequence are correct; if not, feeding back information to the error counter, adding 1 to the failure times, and then jumping to the step ten;
comparing the input fingerprint information with the fingerprint information stored in the memory module by using the checking module, verifying whether the fingerprint information is correct, and driving the execution module to open the lock if the fingerprint information is correct; if not, feeding back information to the error counter, adding 1 to the failure times, and then jumping to the step ten;
and step ten, judging whether the error frequency is smaller than a preset threshold value, if so, returning to the step seven, and if not, returning to the main interface and preventing unlocking within a specified time.
5. The method of claim 4, wherein the encryption in step three is selected from serial, parallel, or compound.
6. The method of claim 5, wherein the serial mode is:
when a user sets a password to input fingerprints, each finger is set with a corresponding number by only pressing one finger each time, the fingerprints with the set number are sequentially pressed according to different sequences, the input fingerprint number and the fingerprint sequence are recorded in the encryption mode detection module, and meanwhile, fingerprint information is stored in the memory module.
7. The method of claim 5, wherein the parallel manner is:
when a user sets a password to enter a fingerprint, the user presses a plurality of fingers simultaneously, the number of the fingerprints identified by the touch screen display and the sequence of the fingerprints are recorded in the encryption mode detection module, and meanwhile, the fingerprint information identified by the fingerprint entry module is stored in the memory unit.
8. The method of claim 5, wherein the combination is performed by:
when a user sets a password to enter a fingerprint, the user presses a plurality of fingers every time, the fingerprint number and the fingerprint identified by the touch screen display every time are recorded in the encryption mode detection module according to different combinations and repeated setting times, and meanwhile, the fingerprint information identified by the fingerprint entry module every time is stored in the memory unit.
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| CN202011227717.1A CN112419550A (en) | 2020-11-06 | 2020-11-06 | Combined fingerprint password system and operation method |
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| CN202011227717.1A CN112419550A (en) | 2020-11-06 | 2020-11-06 | Combined fingerprint password system and operation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116030558A (en) * | 2023-03-27 | 2023-04-28 | 长沙鑫特科技有限公司 | Four kinds of business libraries of bank based on face identification and dynamic trick lock |
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Application publication date: 20210226 |