WO2016187988A1 - 一种实现鉴权的方法、装置及终端 - Google Patents

一种实现鉴权的方法、装置及终端 Download PDF

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Publication number
WO2016187988A1
WO2016187988A1 PCT/CN2015/089794 CN2015089794W WO2016187988A1 WO 2016187988 A1 WO2016187988 A1 WO 2016187988A1 CN 2015089794 W CN2015089794 W CN 2015089794W WO 2016187988 A1 WO2016187988 A1 WO 2016187988A1
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WIPO (PCT)
Prior art keywords
skin
preset
impedance information
frequency point
impedance
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PCT/CN2015/089794
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English (en)
French (fr)
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宫占英
牛景涛
姚庆涛
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中兴通讯股份有限公司
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Publication of WO2016187988A1 publication Critical patent/WO2016187988A1/zh

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31User authentication
    • G06F21/32User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2133Verifying human interaction, e.g., Captcha

Definitions

  • This document relates to, but is not limited to, device application technology, and in particular, to a method, device and terminal for implementing authentication.
  • the terminal is configured to use the face recognition technology to perform screen display unlocking
  • the user's face image information is stored in advance in the terminal; when the screen display is unlocked, the terminal camera device captures and unlocks
  • the face image of the user of the terminal is image-matched by the feature extraction method of the image, and when the user who unlocks the terminal is determined to be the same as the user who stores the face image information, the screen display is unlocked.
  • Face recognition, track pattern, PIN code, digital password, etc. guarantee the privacy of the user to a certain extent, but the current unlocking method still has certain problems: for example, face recognition can also be unlocked by using static photos; PIN Codes, track patterns, and digital passwords are susceptible to cracking.
  • the existing unlocking method can be easily cracked because the face recognition can be static picture unlocking, PIN code, track pattern and digital password;
  • the authentication method of the application in the terminal is basically the same as the screen display unlocking authentication method, so The existing authentication method authenticates the user's identity and still cannot guarantee the security of the user's privacy.
  • the embodiment of the invention provides a method, a device and a terminal for realizing authentication, which can ensure user identity authentication for terminal display and terminal application, and ensure user privacy.
  • An embodiment of the present invention provides a method for implementing authentication, including:
  • the acquired skin impedance information is the same as the pre-stored matching impedance information, and is authenticated.
  • obtaining the skin impedance information of the user includes:
  • the skin impedance information is generated based on the obtained impedance magnitude.
  • the method before sampling the skin scan data, the method further includes:
  • the user's finger skin is scanned at a preset frequency point, including:
  • the external circuit of the skin impedance analysis chip or the two metal reeds preset in the preset pitch on the terminal button are in contact with the skin of the user's finger.
  • the sinusoidal signal is used to scan the user's finger skin at a predetermined frequency point.
  • the preset spacing is a distance that allows the user to get a finger at the same time.
  • the preset frequency point is:
  • Frequency point based on a preset minimum frequency point and at least one based on a fundamental frequency point The frequency doubled frequency point.
  • the preset frequency point is a frequency point having a frequency greater than 5 kHz.
  • the matching acquired skin impedance information and the pre-stored matching impedance information include:
  • the amplitude standard deviation is compared with a preset matching error value.
  • the matching error value is smaller than the matching error value, it is determined that the acquired skin impedance information is the same as the pre-stored matching impedance information.
  • the matching error value is:
  • the amplitudes of the matched impedance information of the plurality of frequency points are squared and accumulated, and the accumulated value is divided by the number of frequency points minus 1 to obtain a quotient value;
  • the value obtained by multiplying the obtained quotient value by the root number is calculated by multiplying 0.1.
  • the application further provides an apparatus for implementing authentication, comprising: an obtaining unit and a matching authentication unit; wherein
  • the matching authentication unit is configured to match the acquired skin impedance information with the pre-stored matching impedance information, and when the same, pass the authentication.
  • the acquiring unit is configured to
  • the skin impedance information is generated based on the obtained impedance magnitude.
  • the obtaining unit is further configured to
  • determining whether the skin scan data includes Skin scan data having a preset frequency point Before sampling the skin scan data, determining whether the skin scan data includes Skin scan data having a preset frequency point; when the skin scan data of all the preset frequency points is not included, determining the preset frequency point not included, and the pre-set frequency
  • the set frequency point scans the user's finger skin until all skin scans of the predetermined frequency point are completed.
  • the obtaining unit is configured to
  • An external circuit of the skin impedance analysis chip or two metal reeds preset at a preset pitch on the terminal button are in contact with the skin of the user's finger.
  • the skin impedance information is generated based on the obtained impedance magnitude.
  • the matching authentication unit is set to,
  • the amplitude standard deviation is compared with a preset matching error value.
  • the matching error value is smaller than the matching error value, it is determined that the acquired skin impedance information is the same as the pre-stored matching impedance information, and when the same, the authentication is performed.
  • the application further provides a terminal for implementing authentication, including: a central processing unit, a signal generator, a scanning unit, and a storage medium;
  • a central processing unit configured to generate a preset sine wave signal by the control signal generator; preset a frequency point for scanning the skin of the user's finger; and sampling the skin scan data to obtain a impedance amplitude corresponding to each preset frequency point a value; generating the skin impedance information according to the obtained impedance magnitude; matching the acquired skin impedance information with the pre-stored matching impedance information, if the same, by authenticating;
  • a scanning unit configured to press according to the sine wave signal when contacting the skin of the user's finger Scanning the skin of the user's finger according to a preset frequency point to generate skin scan data
  • a storage medium configured to store matching impedance information for authentication.
  • the scanning unit is composed of an external circuit of the skin impedance analysis chip or two metal reeds preset with a preset pitch on the terminal button.
  • the central processor is further configured to
  • the skin scan data Before performing the sampling operation on the skin scan data, determining whether the skin scan data includes skin scan data of all preset frequency points; when the skin scan data of all the preset frequency points is not included, determining that the skin scan data is not included
  • the preset frequency point is scanned by the external circuit of the skin impedance analysis chip or the two metal reeds preset by the preset spacing on the terminal button at the preset frequency point not included Finger skin until the skin scan is completed for all of the aforementioned preset frequency points.
  • the central processing unit is configured to generate a preset sine wave signal for the control signal generator; preset a frequency point for scanning the skin of the user's finger; and perform sampling operation on the skin scan data to obtain each preset frequency point.
  • the amplitude standard deviation is compared with a preset matching error value.
  • the matching error value is smaller than the matching error value, it is determined that the acquired skin impedance information is the same as the pre-stored matching impedance information, and when the same, the authentication is performed.
  • the technical solution of the embodiment of the present application includes: acquiring skin impedance information of the user; matching the acquired skin impedance information with the pre-stored matching impedance information, and when authentic, by authenticating.
  • the method of the invention performs authentication by obtaining the skin impedance information, and the skin impedance information cannot be copied, thereby ensuring that only the user can perform terminal screen display or terminal application authentication, thereby improving the privacy security of the user.
  • FIG. 1 is a flowchart of a method for implementing authentication according to the present invention
  • FIG. 2 is a structural block diagram of an apparatus for implementing authentication according to the present invention
  • FIG. 3 is a structural block diagram of a terminal for implementing authentication according to the present invention.
  • FIG. 4 is a schematic diagram of a metal reed which is preset to a preset pitch on a terminal button according to Embodiment 1 of the present invention
  • Fig. 5 is a schematic view showing a skin impedance curve and a matching impedance curve in the first embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for implementing authentication according to an embodiment of the present invention. As shown in FIG. 1 , when performing terminal authentication, the method includes:
  • Step 100 Obtain user skin impedance information.
  • obtaining skin impedance information of the user includes:
  • Skin impedance information is generated based on the obtained impedance magnitude.
  • the method before sampling the skin scan data, the method further includes:
  • scanning the user's finger skin at a preset frequency point includes:
  • the external circuit of the skin impedance analysis chip or the two metal reeds preset in the preset pitch on the terminal button are in contact with the skin of the user's finger.
  • the sine wave signal is used to scan the user's finger skin at a preset frequency point.
  • the preset spacing is: the distance that the user can touch two metal reeds simultaneously by one finger.
  • the general preset spacing is 3 to 6 mm.
  • the preset spacing is mainly set according to the user's finger contact surface. For different regions and different genders, the spacing can be adjusted.
  • the general preset spacing is greater than 3 mm, which is beneficial for scanning the user's finger skin.
  • metal reeds are generally designed with good electrical conductivity, such as brass, aluminum, etc.; the shape of the metal reed is generally not limited, but in the industrial design and production process, generally using symmetrical regular graphics for design, Easy to produce and beautiful.
  • the preset frequency points include:
  • the preset frequency point is a frequency point whose frequency is greater than 5 kHz.
  • the frequency point used in the embodiment of the present invention is a frequency point with a frequency greater than 5 kHz, which ensures the stability of the scanning information, and improves the authentication accuracy and stability. , you can increase the number of frequency points.
  • Step 101 Matching the acquired skin impedance information and the pre-stored matching impedance information, if the same, by authenticating.
  • the skin impedance information and the matching impedance information generally refer to a skin impedance curve and a matching impedance curve, or a function representing a skin impedance curve and a function of matching the impedance curve.
  • matching the acquired skin impedance information with the pre-stored matching impedance information includes:
  • the amplitude standard deviation is compared with a preset matching error value.
  • the matching error value is smaller than the matching error value, it is determined that the acquired skin impedance information is the same as the pre-stored matching impedance information.
  • the matching error value is:
  • the amplitude of the matched impedance information of the plurality of frequency points is squared and then accumulated, and the accumulated value is divided by the number of frequency points minus 1 to obtain a quotient value;
  • the value obtained by multiplying the obtained quotient value by the root number is calculated by multiplying 0.1.
  • the matching error value can be adjusted accordingly, and the smaller the matching error value, the higher the precision.
  • the method of the embodiment of the invention improves the privacy security of the user by ensuring that the skin impedance information cannot be copied by using the acquired skin impedance information, so that only the user can perform terminal screen display or terminal application authentication.
  • FIG. 2 is a structural block diagram of an apparatus for implementing authentication according to an embodiment of the present invention. As shown in FIG. 2, the method includes: an obtaining unit 201 and a matching authentication unit 202;
  • the obtaining unit 201 is configured to acquire skin impedance information of the user
  • the matching authentication unit 202 is configured to match the acquired skin impedance information with the pre-stored matching impedance information, and perform authentication when the same.
  • the obtaining unit 201 is configured to
  • Skin impedance information is generated based on the obtained impedance magnitude.
  • the obtaining unit 201 is further configured to
  • the skin scan data Before sampling the skin scan data, determine whether the skin scan data contains skin scan data of all preset frequency points; skin scans that do not include all preset frequency points When the data is traced, the preset frequency points not included are determined, and the user's finger skin is scanned at a preset frequency point not included until the skin scan of all the preset frequency points is completed.
  • the obtaining unit 201 is configured to
  • An external circuit of the skin impedance analysis chip or two metal reeds preset at a preset pitch on the terminal button are in contact with the skin of the user's finger.
  • Skin impedance information is generated based on the obtained impedance magnitude.
  • the matching authentication unit 202 is configured to
  • the amplitude standard deviation is compared with a preset matching error value.
  • the matching error value is smaller than the matching error value, it is determined that the acquired skin impedance information is the same as the pre-stored matching impedance information, and when the same, the authentication is performed.
  • FIG. 3 is a structural block diagram of a terminal for implementing authentication according to an embodiment of the present invention.
  • the system includes a central processing unit 301, a signal generator 302, a scanning unit 303, and a storage medium 304.
  • the central processing unit 301 is configured to generate a preset sine wave signal by the control signal generator 302; preset a frequency point for scanning the skin of the user's finger; and perform sampling operation on the skin scan data to obtain a corresponding frequency point corresponding to each
  • the impedance amplitude is generated according to the obtained impedance amplitude; and the acquired skin impedance information is matched with the pre-stored matching impedance information, and the same is passed;
  • the scanning unit 303 is configured to, when contacting the skin of the user's finger, scan the skin of the user's finger according to the sine wave signal according to the preset frequency point to generate skin scan data;
  • the scanning unit 303 is composed of an external circuit of the skin impedance analysis chip or two metal reeds preset with a preset pitch on the terminal button.
  • a storage medium 304 is arranged to store matching impedance information for authentication.
  • the central processing unit 301 is also configured to
  • the preset frequency point scans the user's finger through an external circuit of the skin impedance analysis chip or two metal reeds preset with a preset pitch on the terminal button at the preset frequency point not included Skin, until all skin scans of the aforementioned preset frequency points are completed.
  • the central processing unit 301 is configured to generate a preset sine wave signal by the control signal generator 302; preset a frequency point for scanning the skin of the user's finger; and perform sampling operation on the skin scan data to obtain each preset a impedance amplitude corresponding to the frequency point; generating the skin impedance information according to the obtained impedance amplitude; extracting a magnitude corresponding to the skin impedance information of each frequency point and the matched impedance information;
  • the amplitude standard deviation is compared with a preset matching error value.
  • the matching error value is smaller than the matching error value, it is determined that the acquired skin impedance information is the same as the pre-stored matching impedance information, and when the same, the authentication is performed.
  • the present invention is clearly and in detail explained by the terminal unlocking process, and the central processing unit (CPU) of the terminal controls the signal generator to generate a preset sine wave signal.
  • CPU central processing unit
  • FIG. 4 is a schematic diagram of a metal reed 402 of a preset pitch preset on the unlocking button 401 of the terminal 400 according to Embodiment 1 of the present invention.
  • the preset spacing is set to 3 by the unlocking button 401 of the terminal 400.
  • 6 mm pitch metal reed 402 according to a preset sine wave signal, The preset frequency point scan contacts the skin of the metal reed user's finger to generate skin scan data;
  • the skin scan data is sampled to obtain the impedance amplitude corresponding to each preset frequency point; the finger skin of all the preset frequency points is not completed.
  • the un-scanned preset frequency points are scanned until all the preset frequency points are scanned, and the skin scan data is sampled to obtain the impedance amplitude corresponding to each preset frequency point. value.
  • the number and frequency of the preset frequency points are set by the central processing unit.
  • f0 is the minimum frequency point, set it as the base frequency point, and the multiplying frequency setting based on the basic frequency point f0.
  • Skin impedance information is generated based on the obtained impedance magnitude.
  • the authentication is performed.
  • the amplitude standard deviation can be calculated by the following formula
  • the matching error value is:
  • the amplitude of the matched impedance information of each frequency point is squared and then accumulated, and the accumulated value is divided by the number of frequency points minus 1 to obtain a quotient value;
  • the value obtained by multiplying the obtained quotient value by the root number is calculated by multiplying 0.1.
  • the formula matching error value can be expressed as:
  • the embodiment of the present invention further provides a computer readable storage medium, which stores program instructions, and when the program instructions are executed by the processor, implements a method for implementing authentication provided by the embodiments of the present invention.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • each device/function module/functional unit in the above embodiment When each device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the method of the invention performs authentication by obtaining the skin impedance information, and the skin impedance information cannot be copied, thereby ensuring that only the user can perform terminal screen display or terminal application authentication, thereby improving the privacy security of the user.

Abstract

一种实现鉴权的方法、装置及终端,包括:获取用户的皮肤阻抗信息(100);匹配获取的皮肤阻抗信息与预先存储的匹配阻抗信息,相同时,通过鉴权(101)。通过获取的皮肤阻抗信息进行鉴权,由于皮肤阻抗信息无法进行复制,保证了只有用户自己可以进行终端屏幕显示或终端应用的鉴权,提高了用户的隐私安全性。

Description

一种实现鉴权的方法、装置及终端 技术领域
本文涉及但不限于装置应用技术,尤指一种实现鉴权的方法、装置及终端。
背景技术
当前终端(手机、平板等)作为处理日常事务和生活娱乐的设备,保存有越来越多的用户信息,其中涉及到用户的隐私,例如、用户的私人日志、个人音视频文件、以及重要的工作日志或备忘日志等。为了保证用户隐私的安全,需要对终端的屏幕显示及终端内的应用通过鉴权,以获得相应的权限,进行终端或应用的使用。以终端屏幕显示为例,为例保证用户的隐私安全,终端屏幕显示的锁定,从简单的滑动解锁、按压解锁向安全性更高的人脸识别、轨迹图案、PIN码、数字密码等转变。以通过人脸识别进行屏幕显示解锁为例,假设终端设置了采用人脸识别技术进行屏幕显示解锁,则在终端预先存储用户的人脸图像信息;在进行屏幕显示解锁时,终端摄像装置摄取解锁终端的用户的人脸图像,通过图像的特征提取方法进行图像匹配,确定解锁终端的用户与存储人脸图像信息的用户相同时,对终端进行屏幕显示解锁。
人脸识别、轨迹图案、PIN码、数字密码等在一定程度上保证了用户的隐私,但当前的解锁方法仍存在一定的问题:例如、人脸识别存在利用静态照片也可以解锁的问题;PIN码、轨迹图案和数字密码存在容易被破解的问题。
综上,现有的解锁方法,由于人脸识别可以采用静态图片解锁、PIN码、轨迹图案和数字密码容易被破解;终端内的应用的鉴权方法与屏幕显示解锁鉴权方法基本相同,因此,现有的鉴权方法对用户身份通过鉴权,仍无法保障用户隐私的安全。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本发明实施例提供一种实现鉴权的方法、装置及终端,能够保证对终端显示及终端应用进行用户身份鉴权,确保用户隐私安全。
本发明实施例提供了一种实现鉴权的方法,包括:
获取用户的皮肤阻抗信息;
匹配获取的皮肤阻抗信息与预先存储的匹配阻抗信息,相同时,通过鉴权。
可选地,获取用户的皮肤阻抗信息包括:
通过预先设置的正弦波信号,以预先设定的频率点扫描用户的手指皮肤,生成皮肤扫描数据;
对皮肤扫描数据进行采样运算获得每一个预先设定的频率点对应的阻抗幅值;
根据获得的阻抗幅值生成所述皮肤阻抗信息。
可选地,对皮肤扫描数据进行采样运算之前,该方法还包括:
判断所述皮肤扫描数据是否包含所有预先设定的频率点的皮肤扫描数据;不包含所有所述预先设定的频率点的皮肤扫描数据时,确定未包含的所述预先设定的频率点,以该未包含的所述预先设定的频率点扫描用户的手指皮肤,直至完成所有所述预先设定的频率点的皮肤扫描。
可选地地,以预先设定的频率点扫描用户的手指皮肤,包括:
皮肤阻抗分析芯片的外接电路或预先设定在终端按键上预设间距的两个金属簧片在与用户手指皮肤接触时,
通过所述正弦波信号,按照预先设定的频率点扫描用户的手指皮肤。
可选地地,预设间距为:可使用户一个手指同时得到接触的距离。
可选地地,预先设定的频率点为:
以预先设定的最小频率点为基础频率点和至少一个以基础频率点为基础 的倍频频率点。
可选地,预先设定的频率点为频率为大于5KHZ的频率点。
可选地,所述匹配获取的皮肤阻抗信息与预先存储的匹配阻抗信息,包括:
提取每一个频率点的所述皮肤阻抗信息与所述匹配阻抗信息相应的幅值;
根据多个频率点的皮肤阻抗信息的幅值与匹配阻抗信息的幅值计算皮肤阻抗信息与匹配阻抗信息的幅值标准偏差;
将幅值标准偏差与预先设定的匹配误差值进行比较,小于匹配误差值时,确定获取的皮肤阻抗信息与预先存储的匹配阻抗信息相同。
可选地,匹配误差值为:
多个频点的匹配阻抗信息的幅值求平方进行累加,将累加后的值除以频率点个数减1获得商值;
将获得的商值开根号后计算乘以0.1得到的数值。
另一方面,本申请还提供一种实现鉴权的装置,包括:获取单元及匹配鉴权单元;其中,
获取单元,设置为获取用户的皮肤阻抗信息;
匹配鉴权单元,设置为匹配获取的皮肤阻抗信息与预先存储的匹配阻抗信息,相同时,通过鉴权。
可选地地,获取单元具设置为,
通过预先设置的正弦波信号,以预先设定的频率点扫描用户的手指皮肤,生成皮肤扫描数据;
对皮肤扫描数据进行采样运算获得每一个预先设定的频率点对应的阻抗幅值;
根据获得的阻抗幅值生成所述皮肤阻抗信息。
可选地,获取单元还设置为,
对皮肤扫描数据进行采样运算之前,判断所述皮肤扫描数据是否包含所 有预先设定的频率点的皮肤扫描数据;不包含所有所述预先设定的频率点的皮肤扫描数据时,确定未包含的所述预先设定的频率点,以该未包含的所述预先设定的频率点扫描用户的手指皮肤,直至完成所有所述预先设定的频率点的皮肤扫描。
可选地地,获取单元设置为,
皮肤阻抗分析芯片的外接电路或预先设定在终端按键上预设间距的两个金属簧片在接触到用户手指皮肤时,
通过所述正弦波信号,按照预先设定的频率点扫描用户的手指皮肤,生成皮肤扫描数据;
对皮肤扫描数据进行采样运算获得每一个预先设定的频率点对应的阻抗幅值;
根据获得的阻抗幅值生成所述皮肤阻抗信息。
可选地,匹配鉴权单元设置为,
提取每一个个频率点的所述皮肤阻抗信息与所述匹配阻抗信息相应的幅值;
根据多个频率点的皮肤阻抗信息的幅值与匹配阻抗信息的幅值计算皮肤阻抗信息与匹配阻抗信息的幅值标准偏差;
将幅值标准偏差与预先设定的匹配误差值进行比较,小于匹配误差值时,确定获取的皮肤阻抗信息与预先存储的匹配阻抗信息相同,相同时,通过鉴权。
再一方面,本申请还提供一种实现鉴权的终端,包括:中央处理器、信号发生器、扫描单元及存储介质;其中,
中央处理器,设置为控制信号发生器生成预先设置的正弦波信号;预先设定扫描用户的手指皮肤的频率点;对皮肤扫描数据进行采样运算获得每一个预先设定的频率点对应的阻抗幅值;根据获得的阻抗幅值生成所述皮肤阻抗信息;匹配获取的皮肤阻抗信息与预先存储的匹配阻抗信息,相同时,通过鉴权;
扫描单元,设置为在接触到用户手指皮肤时,根据所述正弦波信号,按 照预先设定的频率点扫描用户的手指皮肤,生成皮肤扫描数据;
存储介质,设置为存储用于鉴权的匹配阻抗信息。
可选地,扫描单元由皮肤阻抗分析芯片的外接电路或预先设定在终端按键上预设间距的两个金属簧片组成。
可选地,中央处理器还设置为,
对皮肤扫描数据进行采样运算之前,判断所述皮肤扫描数据是否包含所有预先设定的频率点的皮肤扫描数据;不包含所有所述预先设定的频率点的皮肤扫描数据时,确定未包含的所述预先设定的频率点,以该未包含的所述预先设定的频率点,通过皮肤阻抗分析芯片的外接电路或预先设定在终端按键上预设间距的两个金属簧片扫描用户的手指皮肤,直至完成所有所述预先设定的频率点的皮肤扫描。
可选地,中央处理器,设置为控制信号发生器生成预先设置的正弦波信号;预先设定扫描用户的手指皮肤的频率点;对皮肤扫描数据进行采样运算获得每一个预先设定的频率点对应的阻抗幅值;根据获得的阻抗幅值生成所述皮肤阻抗信息;提取每一个频率点的所述皮肤阻抗信息与所述匹配阻抗信息相应的幅值;
根据多个频率点的皮肤阻抗信息的幅值与匹配阻抗信息的幅值计算皮肤阻抗信息与匹配阻抗信息的幅值标准偏差;
将幅值标准偏差与预先设定的匹配误差值进行比较,小于匹配误差值时,确定获取的皮肤阻抗信息与预先存储的匹配阻抗信息相同,相同时,通过鉴权。
与现有技术相比,本申请实施例的技术方案包括:获取用户的皮肤阻抗信息;匹配获取的皮肤阻抗信息与预先存储的匹配阻抗信息,相同时,通过鉴权。本发明方法通过获取的皮肤阻抗信息进行鉴权,由于皮肤阻抗信息无法进行复制,保证了只有用户自己可以进行终端屏幕显示或终端应用的鉴权,提高了用户的隐私安全性。
在阅读并理解了附图和详细描述后,可以明白其他方面。
附图概述
此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。在附图中:
图1为本发明实现鉴权的方法的流程图;
图2为本发明实现鉴权的装置的结构框图;
图3为本发明实现鉴权的终端的结构框图;
图4为本发明实施例1中预先设定在终端按键上的预设间距的金属簧片示意图;
图5为本发明实施例1中皮肤阻抗曲线和匹配阻抗曲线示意图。
本发明的较佳实施方式
为使本发明实施例的目的、技术方案和优点更加清楚明白,下文中将结合附图对本发明的实施例进行详细说明。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互任意组合。
图1为本发明实施例的实现鉴权的方法的流程图,如图1所示,进行终端鉴权时,包括:
步骤100、获取用户的皮肤阻抗信息;
本步骤中,获取用户的皮肤阻抗信息包括:
通过预先设置的正弦波信号,以预先设定的频率点扫描用户的手指皮肤,生成皮肤扫描数据;
对皮肤扫描数据进行采样运算获得每一个预先设定的频率点对应的阻抗幅值;
根据获得的阻抗幅值生成皮肤阻抗信息。
可选的,对皮肤扫描数据进行采样运算之前,还包括:
判断皮肤扫描数据是否包含所有预先设定的频率点的皮肤扫描数据;不包含所有预先设定的频率点的皮肤扫描数据时,确定未包含的预先设定的频 率点,以该未包含的预先设定的频率点扫描用户的手指皮肤,直至完成所有预先设定的频率点的皮肤扫描。
其中,以预先设定的频率点扫描用户的手指皮肤包括:
皮肤阻抗分析芯片的外接电路或预先设定在终端按键上预设间距的两个金属簧片在与用户手指皮肤接触时,
通过正弦波信号,按照预先设定的频率点扫描用户的手指皮肤。
预设间距为:可以使用户一个手指同时接触到两个金属簧片的距离。这里,根据统计分析,一般的预设间距取3~6毫米。
需要说明的是,预设间距主要根据用户手指接触面进行设置,对于不同区域和不同性别的用户,间距可以进行大小调整,一般的预设间距大于3毫米,有利于进行用户的手指皮肤的扫描。另外,金属簧片一般采用导电性良好的金属进行设计,例如、黄铜、铝等;金属簧片的形状一般不做限制,但在工业设计生产过程中,一般采用对称的规则图形进行设计,便于生产且美观。
预先设定的频率点包括:
以预先设定的最小频率点为基础频率点和至少一个以基础频率点为基础的倍频频率点。
可选的,预先设定的频率点为频率为大于5KHZ的频率点。
需要说明的是,为了避免受皮肤干燥、潮湿等外界因素影响,本发明实施例采用的频率点为频率大于5KHZ的频率点,确保了扫描信息的稳定性,为了提升鉴权精确度和稳定性,可以增加频率点数量。
步骤101、匹配获取的皮肤阻抗信息与预先存储的匹配阻抗信息,相同时,通过鉴权。
其中,皮肤阻抗信息与匹配阻抗信息一般是指皮肤阻抗曲线和匹配阻抗曲线,或者表示皮肤阻抗曲线的函数和匹配阻抗曲线的函数。
可选的,匹配获取的皮肤阻抗信息与预先存储的匹配阻抗信息包括:
提取每一个频率点的皮肤阻抗信息与匹配阻抗信息相应的幅值;
根据多个频率点的皮肤阻抗信息的幅值与匹配阻抗信息的幅值,计算皮肤阻抗信息与匹配阻抗信息的幅值标准偏差;
将幅值标准偏差与预先设定的匹配误差值进行比较,小于匹配误差值时,确定获取的皮肤阻抗信息与预先存储的匹配阻抗信息相同。
其中,匹配误差值为:
多个频点的匹配阻抗信息的幅值求平方后进行累加,将累加后的值除以频率点个数减1获得商值;
将获得的商值开根号后计算乘以0.1得到的数值。
需要说明的是,根据精度要求,匹配误差值可以进行相应调整,匹配误差值越小,精度越高。
本发明实施例的方法通过获取的皮肤阻抗信息通过鉴权,由于皮肤阻抗信息无法进行复制,保证了只有用户自己可以进行终端屏幕显示或终端应用的鉴权,提高了用户的隐私安全性。
图2为本发明实施例的实现鉴权的装置的结构框图,如图2所示,包括:获取单元201及匹配鉴权单元202;其中,
获取单元201,设置为获取用户的皮肤阻抗信息;
匹配鉴权单元202,设置为匹配获取的皮肤阻抗信息与预先存储的匹配阻抗信息,相同时,进行鉴权。
其中,获取单元201设置为,
通过预先设置的正弦波信号,以预先设定的频率点扫描用户的手指皮肤,生成皮肤扫描数据;
对皮肤扫描数据进行采样运算获得每一个预先设定的频率点对应的阻抗幅值;
根据获得的阻抗幅值生成皮肤阻抗信息。
获取单元201还设置为,
在对皮肤扫描数据进行采样运算之前,判断皮肤扫描数据是否包含所有预先设定的频率点的皮肤扫描数据;不包含所有预先设定的频率点的皮肤扫 描数据时,确定未包含的预先设定的频率点,以未包含的预先设定的频率点扫描用户的手指皮肤,直至完成所有预先设定的频率点的皮肤扫描。
可选地,获取单元201设置为,
皮肤阻抗分析芯片的外接电路或预先设定在终端按键上预设间距的两个金属簧片在接触到用户手指皮肤时,
通过所述正弦波信号,按照预先设定的频率点扫描用户的手指皮肤,生成皮肤扫描数据;
对皮肤扫描数据进行采样运算获得每一个预先设定的频率点对应的阻抗幅值;
根据获得的阻抗幅值生成皮肤阻抗信息。
可选地,匹配鉴权单元202设置为,
提取每一个频率点的皮肤阻抗信息与匹配阻抗信息相应的幅值;
根据多个频率点的皮肤阻抗信息的幅值与匹配阻抗信息的幅值计算皮肤阻抗信息与匹配阻抗信息的幅值标准偏差;
将幅值标准偏差与预先设定的匹配误差值进行比较,小于匹配误差值时,确定获取的皮肤阻抗信息与预先存储的匹配阻抗信息相同,相同时,通过鉴权。
图3为本发明实施例的实现鉴权的终端的结构框图,如图3所示,包括:中央处理器301、信号发生器302、扫描单元303及存储介质304;其中,
中央处理器301,设置为控制信号发生器302生成预先设置的正弦波信号;预先设定扫描用户的手指皮肤的频率点;对皮肤扫描数据进行采样运算获得每一个预先设定的频率点对应的阻抗幅值;根据获得的阻抗幅值生成所述皮肤阻抗信息;匹配获取的皮肤阻抗信息与预先存储的匹配阻抗信息,相同时,通过鉴权;
扫描单元303,设置为在接触到用户手指皮肤时,根据所述正弦波信号,按照预先设定的频率点扫描用户的手指皮肤,生成皮肤扫描数据;
其中,扫描单元303由皮肤阻抗分析芯片的外接电路或预先设定在终端按键上预设间距的两个金属簧片组成。
存储介质304,设置为存储用于鉴权的匹配阻抗信息。
中央处理器301还设置为,
对皮肤扫描数据进行采样运算之前,判断所述皮肤扫描数据是否包含所有预先设定的频率点的皮肤扫描数据;不包含所有所述预先设定的频率点的皮肤扫描数据时,确定未包含的所述预先设定的频率点,以该未包含的预先设定的频率点,通过皮肤阻抗分析芯片的外接电路或预先设定在终端按键上预设间距的两个金属簧片扫描用户的手指皮肤,直至完成所有所述预先设定的频率点的皮肤扫描。
可选地,中央处理器301,设置为控制信号发生器302生成预先设置的正弦波信号;预先设定扫描用户的手指皮肤的频率点;对皮肤扫描数据进行采样运算获得每一个预先设定的频率点对应的阻抗幅值;根据获得的阻抗幅值生成所述皮肤阻抗信息;提取每一个频率点的所述皮肤阻抗信息与所述匹配阻抗信息相应的幅值;
根据多个频率点的皮肤阻抗信息的幅值与匹配阻抗信息的幅值计算皮肤阻抗信息与匹配阻抗信息的幅值标准偏差;
将幅值标准偏差与预先设定的匹配误差值进行比较,小于匹配误差值时,确定获取的皮肤阻抗信息与预先存储的匹配阻抗信息相同,相同时,通过鉴权。
以下通过具体实施例对本发明方法进行清楚详细的说明,实施例仅用于陈述本发明,并不用于限制本发明方法的保护范围。
实施例1
本实施例通过终端解锁过程对本发明进行清楚详细的说明,终端的中央处理器(CPU)控制信号发生器生成预先设置的正弦波信号。
图4为本发明实施例1预先设定在终端400的解锁按键401上的预设间距的金属簧片402示意图,如图4所示,通过终端400的解锁按键401设置预设间距为3~6毫米间距的金属簧片402,根据预先设置的正弦波信号,以 预先设定的频率点扫描接触到金属簧片用户的手指皮肤,生成皮肤扫描数据;
确定完成所有预先设定的频率点的手指皮肤的扫描时,对皮肤扫描数据进行采样运算获得每一个预先设定的频率点对应的阻抗幅值;未完成所有预先设定的频率点的手指皮肤的扫描时,对未扫描的预先设定的频率点进行扫描,直至所有预先设定的频率点扫描完后,再对皮肤扫描数据进行采样运算获得每一个预先设定的频率点对应的阻抗幅值。
这里,预先设定的频率点的个数和频率通过中央处理器设定,可选的,假设f0为最小频率点,则设置其为基础频率点,以基础频率点f0为基础的倍频设置其他预先设定的频率点,即设置f1=2*f0、f2=3*f0、f3=4*f0、……、f(n-1)=n*f0。
根据获得的阻抗幅值生成皮肤阻抗信息。
匹配获取的皮肤阻抗信息与预先存储的匹配阻抗信息,相同时,进行鉴权。
图5为本发明实施例1中皮肤阻抗曲线和匹配阻抗曲线示意图,如图5所示,其中,坐标轴横轴表示频率点频率,坐标轴纵轴表示幅度值。假设Aix和Ax分别为频点fi(i=0……n-1)的皮肤阻抗信息的幅值和匹配阻抗信息的幅值。
则根据多个频率点的皮肤阻抗信息的幅值与匹配阻抗信息的幅值计算皮肤阻抗信息与匹配阻抗信息的幅值标准偏差;可以通过以下公式计算幅值标准偏差
Figure PCTCN2015089794-appb-000001
本实施例,匹配误差值为:
每一个频点的匹配阻抗信息的幅值求平方后进行累加,将累加后的值除以频率点个数减1获得商值;
将获得的商值开根号后计算乘以0.1得到的数值。通过公式匹配误差值可以表示为:
Figure PCTCN2015089794-appb-000002
当S<δ时,则认定皮肤阻抗信息与预先存储的匹配阻抗信息相同,对终端进行解锁。
实施例3
本发明实施例还提供一种计算机可读存储介质,存储有程序指令,当该程序指令被处理器执行时实现本发明实施例所提供的一种实现鉴权的方法。
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计算机程序流程来实现,所述计算机程序可以存储于一计算机可读存储介质中,所述计算机程序在相应的硬件平台上(如系统、设备、装置、器件等)执行,在执行时,包括方法实施例的步骤之一或其组合。
可选地,上述实施例的全部或部分步骤也可以使用集成电路来实现,这些步骤可以被分别制作成一个个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。
上述实施例中的各装置/功能模块/功能单元可以采用通用的计算装置来实现,它们可以集中在单个的计算装置上,也可以分布在多个计算装置所组成的网络上。
上述实施例中的各装置/功能模块/功能单元以软件功能模块的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。上述提到的计算机可读取存储介质可以是只读存储器,磁盘或光盘等。
工业实用性
本发明方法通过获取的皮肤阻抗信息进行鉴权,由于皮肤阻抗信息无法进行复制,保证了只有用户自己可以进行终端屏幕显示或终端应用的鉴权,提高了用户的隐私安全性。

Claims (19)

  1. 一种实现鉴权的方法,包括:
    获取用户的皮肤阻抗信息;
    匹配获取的皮肤阻抗信息与预先存储的匹配阻抗信息,相同时,通过鉴权。
  2. 根据权利要求1所述的方法,其中,所述获取用户的皮肤阻抗信息,包括:
    通过预先设置的正弦波信号,以预先设定的频率点扫描用户的手指皮肤,生成皮肤扫描数据;
    对皮肤扫描数据进行采样运算,获得每一个预先设定的频率点对应的阻抗幅值;
    根据获得的阻抗幅值生成所述皮肤阻抗信息。
  3. 根据权利要求2所述的方法,在所述对皮肤扫描数据进行采样运算之前,该方法还包括:
    判断所述皮肤扫描数据是否包含所有预先设定的频率点的皮肤扫描数据;不包含所有所述预先设定的频率点的皮肤扫描数据时,确定未包含的预先设定的频率点,以所述未包含的预先设定的频率点扫描用户的手指皮肤,直至完成所有所述预先设定的频率点的皮肤扫描。
  4. 根据权利要求2或3所述的方法,其中,以预先设定的频率点扫描用户的手指皮肤,包括:
    皮肤阻抗分析芯片的外接电路或预先设定在终端按键上预设间距的两个金属簧片在与用户手指皮肤接触时,
    通过所述正弦波信号,按照预先设定的频率点扫描用户的手指皮肤。
  5. 根据权利要求4所述的方法,其中,所述预设间距为:可使用户一个手指同时得到接触的距离。
  6. 根据权利要求2所述的方法,其中,所述预先设定的频率点包括:
    以预先设定的最小频率点为基础频率点和至少一个以基础频率点为基础的倍频频率点。
  7. 根据权利要求6所述的方法,其中,所述预先设定的频率点为频率大于5KHZ的频率点。
  8. 根据权利要求5所述的方法,其中,
    所述匹配获取的皮肤阻抗信息与预先存储的匹配阻抗信息,包括:
    提取每一个频率点的所述皮肤阻抗信息与所述匹配阻抗信息相应的幅值;
    根据多个频率点的皮肤阻抗信息的幅值与匹配阻抗信息的幅值计算皮肤阻抗信息与匹配阻抗信息的幅值标准偏差;
    将所述幅值标准偏差与预先设定的匹配误差值进行比较,小于所述匹配误差值时,确定获取的皮肤阻抗信息与预先存储的匹配阻抗信息相同。
  9. 根据权利要求8所述的方法,其中,所述匹配误差值为:
    多个频点的匹配阻抗信息的幅值求平方后进行累加,将累加后的值除以频率点个数减1获得商值;
    将获得的商值开根号后计算乘以0.1得到的数值。
  10. 一种实现鉴权的装置,包括:获取单元及匹配鉴权单元;其中,
    所述获取单元,设置为获取用户的皮肤阻抗信息;
    所述匹配鉴权单元,设置为匹配获取的皮肤阻抗信息与预先存储的匹配阻抗信息,相同时,通过鉴权。
  11. 根据权利要求10所述的装置,其中,所述获取单元设置为,
    通过预先设置的正弦波信号,以预先设定的频率点扫描用户的手指皮肤,生成皮肤扫描数据;
    对皮肤扫描数据进行采样运算,获得每一个预先设定的频率点对应的阻抗幅值;
    根据获得的阻抗幅值生成所述皮肤阻抗信息。
  12. 根据权利要求11所述的装置,其中,所述获取单元还设置为,
    对皮肤扫描数据进行采样运算之前,判断所述皮肤扫描数据是否包含所有预先设定的频率点的皮肤扫描数据;不包含所有所述预先设定的频率点的皮肤扫描数据时,确定未包含的预先设定的频率点,以所述未包含的预先设定的频率点扫描用户的手指皮肤,直至完成所有所述预先设定的频率点的皮肤扫描。
  13. 根据权利要求11或12所述的装置,其中,所述获取单元设置为,
    皮肤阻抗分析芯片的外接电路或预先设定在终端按键上预设间距的两个金属簧片在接触到用户手指皮肤时,
    通过所述正弦波信号,按照预先设定的频率点扫描用户的手指皮肤,生成皮肤扫描数据;
    对皮肤扫描数据进行采样运算获得每一个预先设定的频率点对应的阻抗幅值;
    根据获得的阻抗幅值生成所述皮肤阻抗信息。
  14. 根据权利要求11或12所述的装置,其中,所述匹配鉴权单元设置为,
    提取每一个频率点的所述皮肤阻抗信息与所述匹配阻抗信息相应的幅值;
    根据多个频率点的皮肤阻抗信息的幅值与匹配阻抗信息的幅值计算皮肤阻抗信息与匹配阻抗信息的幅值标准偏差;
    将所述幅值标准偏差与预先设定的匹配误差值进行比较,小于所述匹配误差值时,确定获取的皮肤阻抗信息与预先存储的匹配阻抗信息相同;相同时,通过鉴权。
  15. 一种实现鉴权的终端,包括:中央处理器、信号发生器、扫描单元及存储介质;其中,
    所述中央处理器,设置为控制所述信号发生器生成预先设置的正弦波信号;预先设定扫描用户的手指皮肤的频率点;对皮肤扫描数据进行采样运算,获得每一个预先设定的频率点对应的阻抗幅值;根据获得的阻抗幅值生成所述皮肤阻抗信息,匹配获取的皮肤阻抗信息与预先存储的匹配阻抗信 息,相同时,通过鉴权;
    扫描单元,设置为在接触到用户手指皮肤时,通过所述正弦波信号,按照预先设定的频率点扫描用户的手指皮肤,生成皮肤扫描数据;
    存储介质,设置为存储用于鉴权的匹配阻抗信息。
  16. 根据权利要求15所述的终端,其中,所述扫描单元由皮肤阻抗分析芯片的外接电路或预先设定在终端按键上预设间距的两个金属簧片组成。
  17. 根据权利要求15或16所述的终端,其中,所述中央处理器还设置为,
    在对皮肤扫描数据进行采样运算之前,判断所述皮肤扫描数据是否包含所有预先设定的频率点的皮肤扫描数据;不包含所有所述预先设定的频率点的皮肤扫描数据时,确定未包含的预先设定的频率点,以所述未包含的预先设定的频率点,通过皮肤阻抗分析芯片的外接电路或预先设定在终端按键上预设间距的两个金属簧片扫描用户的手指皮肤,直至完成所有所述预先设定的频率点的皮肤扫描。
  18. 根据权利要求15或16所述的装置,其中,所述中央处理器,设置为控制信号发生器生成预先设置的正弦波信号;预先设定扫描用户的手指皮肤的频率点;对皮肤扫描数据进行采样运算,获得每一个预先设定的频率点对应的阻抗幅值;根据获得的阻抗幅值生成所述皮肤阻抗信息,提取每一个频率点的所述皮肤阻抗信息与所述匹配阻抗信息相应的幅值;
    根据多个频率点的皮肤阻抗信息的幅值与匹配阻抗信息的幅值计算皮肤阻抗信息与匹配阻抗信息的幅值标准偏差;
    将所述幅值标准偏差与预先设定的匹配误差值进行比较,小于所述匹配误差值时,确定获取的皮肤阻抗信息与预先存储的匹配阻抗信息相同,相同时,通过鉴权。
  19. 一种计算机可读存储介质,存储有程序指令,当该程序指令被处理器执行时实现权利要求1-9任一项所述的方法。
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