CN112699358B - Application method of password safety protection device based on fingerprint sensor - Google Patents
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Abstract
本发明公开了一种基于指纹传感器密码安全保护装置的使用方法,其包括指纹传感器和指纹录入模块,指纹传感器依次通过模数转换器、加密模块和单片机连接,指纹录入模块通过另一模数转换器与单片机电连接,单片机与显示器电连接。本发明还提供了对应的使用方法,其包括指纹录入模块获取用户指纹,并将指纹转化为电信号数据;将电信号数据通过模数转换器转换为对应数字,并作归一化处理。本发明能够解决现有技术中密码容易被窃取、按键体验差的问题,效率高、准确性强、安全性好。
The invention discloses a method of using a password security protection device based on a fingerprint sensor. It includes a fingerprint sensor and a fingerprint entry module. The fingerprint sensor is connected through an analog-to-digital converter, an encryption module and a microcontroller in sequence. The fingerprint entry module is connected through another analog-to-digital conversion. The device is electrically connected to the microcontroller, and the microcontroller is electrically connected to the display. The present invention also provides a corresponding usage method, which includes the fingerprint entry module acquiring the user's fingerprint and converting the fingerprint into electrical signal data; converting the electrical signal data into corresponding numbers through an analog-to-digital converter and performing normalization processing. The invention can solve the problems in the prior art that passwords are easy to be stolen and the key experience is poor, and has high efficiency, strong accuracy and good security.
Description
技术领域Technical field
本发明涉及保险解锁技术领域,具体涉及一种基于指纹传感器密码安全保护装置的使用方法。The invention relates to the technical field of insurance unlocking, and in particular to a method of using a password security protection device based on a fingerprint sensor.
背景技术Background technique
现在ATM机都是通过按键输入密码,但是会有一部分不法分子在ATM机上安装特殊设备来获取用户密码,通常实在键盘上方安装微型摄像头,来获得用户的银行卡密码。Nowadays, ATM machines use buttons to enter passwords, but some criminals install special equipment on ATM machines to obtain user passwords. Usually, a miniature camera is installed above the keyboard to obtain the user's bank card password.
目前按键输入密码的主要问题包括:按键体验不好,按钮材质较硬,容易输入错误;经常发生一些利用自动柜员机进行盗窃和诈骗的违法行为。At present, the main problems of key-press password input include: the key experience is not good, the button material is hard, and it is easy to input errors; some illegal activities such as theft and fraud using ATMs often occur.
发明内容Contents of the invention
本发明针对现有技术中的上述不足,提供了一种能够解决现有技术中密码容易被窃取、按键体验差的问题的基于指纹传感器的密码安全保护装置。In view of the above-mentioned deficiencies in the prior art, the present invention provides a fingerprint sensor-based password security protection device that can solve the problems in the prior art that passwords are easy to be stolen and the key experience is poor.
为解决上述技术问题,本发明采用了下列技术方案:In order to solve the above technical problems, the present invention adopts the following technical solutions:
本发明提供了一种基于指纹传感器密码安全保护装置的使用方法,其包括如下步骤:The invention provides a method of using a password security protection device based on a fingerprint sensor, which includes the following steps:
S1、指纹录入模块获取用户指纹,并将指纹转化为电信号数据;S1. The fingerprint entry module obtains the user's fingerprint and converts the fingerprint into electrical signal data;
S2、将电信号数据通过模数转换器转换为对应数字,并作归一化处理;S2. Convert the electrical signal data into corresponding numbers through the analog-to-digital converter and perform normalization processing;
S3、将归一化的数字与储存于单片机中的密码转换为的数字比较,当数字相同时,完成认证,否则显示密码错误。S3. Compare the normalized number with the number converted from the password stored in the microcontroller. When the numbers are the same, the authentication is completed, otherwise the password error is displayed.
本发明提供的上述基于指纹传感器密码安全保护装置的使用方法主要有益效果在于:The main beneficial effects of the above fingerprint sensor-based password security protection device provided by the present invention are:
本发明具有更高的安全性,自行设置的指纹对应的密码只有客户知道,这样即使在输入密码时被违法安装的摄像头偷拍下来也不用担心密码会泄露。与如今的按键输入技术相比保密性更高。指纹的输入方式也优化了操作体验。The invention has higher security. Only the customer knows the password corresponding to the self-set fingerprint. In this way, even if the password is secretly photographed by an illegally installed camera when inputting the password, there is no need to worry about the password being leaked. Greater confidentiality than today's keystroke input technology. The fingerprint input method also optimizes the operating experience.
附图说明Description of the drawings
图1为基于指纹传感器的密码安全保护装置的结构示意图。Figure 1 is a schematic structural diagram of a password security protection device based on a fingerprint sensor.
图2为基于指纹传感器的密码安全保护装置的使用方法的流程图。Figure 2 is a flow chart of a method of using a password security protection device based on a fingerprint sensor.
其中,1、指纹传感器,2、模数转换器,3、加密模块,4、指纹录入模块,5、模数转换器,6、键盘,7、显示器,8、单片机。Among them, 1. Fingerprint sensor, 2. Analog-to-digital converter, 3. Encryption module, 4. Fingerprint entry module, 5. Analog-to-digital converter, 6. Keyboard, 7. Display, 8. Microcontroller.
具体实施方式Detailed ways
下面结合附图对本发明作进一步说明:The present invention will be further described below in conjunction with the accompanying drawings:
如图1所示,其为本发明基于指纹传感器的密码安全保护装置的流程图。As shown in Figure 1, it is a flow chart of the fingerprint sensor-based password security protection device of the present invention.
本发明的基于指纹传感器的密码安全保护装置包括指纹传感器1和指纹录入模块4,指纹传感器1依次通过模数转换器2、加密模块3和单片机8连接。指纹录入模块4通过另一模数转换器5与单片机8电连接,单片机8与显示器7电连接。The fingerprint sensor-based password security protection device of the present invention includes a fingerprint sensor 1 and a fingerprint entry module 4. The fingerprint sensor 1 is connected through an analog-to-digital converter 2, an encryption module 3 and a single-chip microcomputer 8 in sequence. The fingerprint entry module 4 is electrically connected to the single-chip computer 8 through another analog-to-digital converter 5 , and the single-chip computer 8 is electrically connected to the display 7 .
其中,单片机7与键盘6电连接,以应对指纹传感器1无法使用的情况。Among them, the microcontroller 7 is electrically connected to the keyboard 6 to cope with the situation when the fingerprint sensor 1 cannot be used.
模数转换器2、模数转换器5均为7135型号的A/D转换器。单片机8的型号为8051型号的单片机。Analog-to-digital converter 2 and analog-to-digital converter 5 are both 7135 model A/D converters. The model of the single-chip microcomputer 8 is the 8051 single-chip microcomputer.
优选的,指纹传感器1和指纹录入模块4结构相同,分别用于设置密码和输入密码的场合。Preferably, the fingerprint sensor 1 and the fingerprint entry module 4 have the same structure and are used for setting passwords and inputting passwords respectively.
本发明还提供了一种基于上述指纹传感器的密码安全保护装置的使用方法,其特征在于,如图2所示,包括如下步骤:The present invention also provides a method for using the password security protection device based on the above-mentioned fingerprint sensor, which is characterized in that, as shown in Figure 2, it includes the following steps:
S1、指纹录入模块4获取用户指纹,并将指纹转化为电信号数据。S1. The fingerprint entry module 4 obtains the user's fingerprint and converts the fingerprint into electrical signal data.
S2、将电信号数据通过模数转换器5转换为对应数字,并作归一化处理。S2. Convert the electrical signal data into corresponding numbers through the analog-to-digital converter 5 and perform normalization processing.
其中,归一化处理后的数字为九位数。Among them, the normalized number is nine digits.
S3、将归一化的数字与储存于单片机8中的密码转换为的数字比较,当数字相同时,完成认证,否则显示密码错误。S3. Compare the normalized number with the number converted into the password stored in the microcontroller 8. When the numbers are the same, the authentication is completed, otherwise the password error is displayed.
进一步地,储存于单片机8中的密码通过如下步骤得到:Further, the password stored in the microcontroller 8 is obtained through the following steps:
S3-1、指纹传感器1获取用户指纹,并将指纹转化为电信号数据。S3-1. The fingerprint sensor 1 obtains the user's fingerprint and converts the fingerprint into electrical signal data.
S3-2、将电信号数据通过模数转换器2转换为对应数字,并作归一化处理。S3-2. Convert the electrical signal data into corresponding numbers through the analog-to-digital converter 2, and perform normalization processing.
S3-3、将归一化处理的数字进行加密处理,得到加密后的数字。S3-3. Encrypt the normalized numbers to obtain the encrypted numbers.
具体的,加密算法为:Specifically, the encryption algorithm is:
对于第i个指纹转换的数组为xij,其中,i=1,2,……,6,j=1,2,……,9;加密后的数组为Xij,有如下关系:For the i-th fingerprint, the converted array is x ij , where i=1,2,...,6, j=1,2,...,9; the encrypted array is
Xij=xij+j。X ij =x ij +j.
S3-4、将加密后的数字存储于单片机8中,得到储存于单片机8中的密码。S3-4. Store the encrypted number in the microcontroller 8 to obtain the password stored in the microcontroller 8 .
进一步地,比较方法为:Further, the comparison method is:
对于模数转换器5转换的用户指纹信息数组为Yij,当满足条件:Xij=Yij时,检验通过。For the user fingerprint information array converted by the analog-to-digital converter 5 to be Y ij , when the condition is met: X ij =Y ij , the test passes.
上面对本发明的具体实施方式进行描述,以便于本技术领域的技术人员理解本发明,但应该清楚,本发明不限于具体实施方式的范围,对本技术领域的普通技术人员来讲,只要各种变化在所附的权利要求限定和确定的本发明的精神和范围内,这些变化是显而易见的,一切利用本发明构思的发明创造均在保护之列。The specific embodiments of the present invention are described above to facilitate those skilled in the art to understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes These changes are obvious within the spirit and scope of the invention as defined and determined by the appended claims, and all inventions and creations utilizing the concept of the invention are protected.
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