CN106295283A - A kind of method, device and terminal realizing authentication - Google Patents

A kind of method, device and terminal realizing authentication Download PDF

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Publication number
CN106295283A
CN106295283A CN201510274797.9A CN201510274797A CN106295283A CN 106295283 A CN106295283 A CN 106295283A CN 201510274797 A CN201510274797 A CN 201510274797A CN 106295283 A CN106295283 A CN 106295283A
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China
Prior art keywords
skin
advance
frequency point
information
scanning
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Chinese (zh)
Inventor
宫占英
牛景涛
姚庆涛
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ZTE Corp
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ZTE Corp
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Priority to CN201510274797.9A priority Critical patent/CN106295283A/en
Priority to PCT/CN2015/089794 priority patent/WO2016187988A1/en
Publication of CN106295283A publication Critical patent/CN106295283A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing 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
    • G06F2221/2133—Verifying human interaction, e.g., Captcha

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

The invention discloses a kind of method, device and terminal realizing authentication, including: obtain the Skin Resistance information of user；The Skin Resistance information of coupling acquisition and the impedance information of mating prestored, time identical, by authentication.The inventive method is authenticated by the Skin Resistance information obtained, owing to Skin Resistance information cannot be carried out replicating, it is ensured that only have user oneself can carry out terminal screen and show or the authentication of terminal applies, improve the personal secrets of user.

Description

A kind of method, device and terminal realizing authentication
Technical field
The present invention relates to device application technology, a kind of method, device and terminal realizing authentication.
Background technology
Present terminal (mobile phone, flat board etc.), as handling day-to-day work and the equipment of life & amusement, preserves Have increasing user profile, be directed to the privacy of user, such as, the private daily record of user, Individual's audio-video document and important daily record of work or memorandum daily record etc..In order to ensure privacy of user Safety, needs to show the screen of terminal and application in terminal is by authentication, to obtain corresponding authority, Carry out the use of terminal or application.As a example by terminal screen shows, as a example by ensure the personal secrets of user, The locking that terminal screen shows, knows to the higher face of safety from unblock of simply sliding, being unlocked by pressing Not, track pattern, PIN code, numerical ciphers etc. change.To carry out screen display solution by recognition of face As a example by lock, it is assumed that terminal is provided with employing face recognition technology and carries out screen display unblock, then pre-in terminal First store the human face image information of user；When carrying out screen display and unlocking, the picked-up of terminal camera head solves The facial image of the user of lock terminal, carries out images match by the feature extracting method of image, determines solution When the user of lock terminal is identical with the user of storage human face image information, terminal is carried out screen display and unlocks.
Recognition of face, track pattern, PIN code, numerical ciphers etc. ensure that user's to a certain extent Privacy, but current unlocking method still suffers from certain problem: such as, recognition of face exists and utilize static state The problem that photo can also unlock；What PIN code, track pattern and numerical ciphers existence were easily cracked asks Topic.
To sum up, existing unlocking method, due to recognition of face can use static images unblock, PIN code, Track pattern and numerical ciphers are easily cracked；The method for authenticating of the application in terminal unlocks with screen display Method for authenticating is essentially identical, and therefore, user identity by authentication, still cannot be protected by existing method for authenticating The safety of barrier privacy of user.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention provides a kind of method, device and terminal realizing authentication, Ensure that and terminal demonstration and terminal applies are carried out subscriber identity authentication, it is ensured that privacy of user safety.
In order to reach the object of the invention, the invention provides a kind of method realizing authentication, including:
Obtain the Skin Resistance information of user；
The Skin Resistance information of coupling acquisition and the impedance information of mating prestored, time identical, by mirror Power.
Further, the Skin Resistance information obtaining user specifically includes:
By the sine wave signal pre-set, with the finger skin of Frequency point set in advance scanning user, Generate skin scanning data；
Skin scanning data are carried out sampled operational and obtains the impedance width that each Frequency point set in advance is corresponding Value；
Described Skin Resistance information is generated according to the impedance magnitude obtained.
Further, before skin scanning data are carried out sampled operational, the method also includes:
Judge whether described skin scanning data comprise the skin scanning number of all Frequency points set in advance According to；When not comprising the skin scanning data of all described Frequency points set in advance, determine the institute not comprised State Frequency point set in advance, with the finger skin of this Frequency point set in advance scanning user, until complete Become the skin scanning of all described Frequency points set in advance.
Further, specifically include with the finger skin of Frequency point set in advance scanning user:
The external circuits of Skin Resistance analysis chip or be set in advance in two of preset pitch on terminal push Metal spring leaf when contacting with user's finger skin,
According to described sine wave signal, according to the finger skin of Frequency point set in advance scanning user.
Further, preset pitch is: one finger of user can be made to obtain the distance of contact simultaneously.
Further, Frequency point set in advance is:
Frequency point based on minimum frequency point set in advance, with base frequency point as frequency multiplication each the most in advance The Frequency point set.
Further, Frequency point set in advance be frequency be the arbitrary frequency point of more than 5KHZ.
Further, the Skin Resistance information that described coupling obtains has with the impedance information of mating prestored Body includes:
Extract the described Skin Resistance information of each Frequency point and the described corresponding amplitude of coupling impedance information；
The amplitude of the Skin Resistance information according to each Frequency point calculates skin resistance with the amplitude mating impedance information Anti-information and the amplitude standard deviation mating impedance information；
Amplitude standard deviation is compared with matching error value set in advance, during less than matching error value, The Skin Resistance information determining acquisition is identical with the coupling impedance information prestored.
Further, matching error value is:
The amplitude of the coupling impedance information of each frequency is squared to add up, and the value after adding up is divided by frequency The point number acquisition quotient that subtracts 1；
Calculate after the quotient of acquisition is opened radical sign and be multiplied by 0.1 numerical value obtained.
On the other hand, the application also provides for a kind of device realizing authentication, including: acquiring unit and coupling Authenticating unit；Wherein,
Acquiring unit, for obtaining the Skin Resistance information of user；
Coupling authenticating unit, believes with the impedance of mating prestored for the Skin Resistance information mating acquisition Breath, time identical, by authentication.
Further, acquiring unit specifically for,
By the sine wave signal pre-set, with the finger skin of Frequency point set in advance scanning user, Generate skin scanning data；
Skin scanning data are carried out sampled operational and obtains the impedance width that each Frequency point set in advance is corresponding Value；
Described Skin Resistance information is generated according to the impedance magnitude obtained.
Further, acquiring unit is additionally operable to,
Before skin scanning data are carried out sampled operational, it is judged that whether described skin scanning data comprise institute There are the skin scanning data of Frequency point set in advance；Do not comprise all described Frequency points set in advance During skin scanning data, determine the Frequency point described set in advance not comprised, with this frequency set in advance The finger skin of rate spot scan user, until completing the skin scanning of all described Frequency points set in advance.
Further, acquiring unit specifically for,
The external circuits of Skin Resistance analysis chip or be set in advance in two of preset pitch on terminal push Metal spring leaf when touching user's finger skin,
According to described sine wave signal, according to the finger skin of Frequency point set in advance scanning user, raw Become skin scan data；
Skin scanning data are carried out sampled operational and obtains the impedance width that each Frequency point set in advance is corresponding Value；
Described Skin Resistance information is generated according to the impedance magnitude obtained.
Further, coupling authenticating unit specifically for,
Extract the described Skin Resistance information of each Frequency point and the described corresponding amplitude of coupling impedance information；
The amplitude of the Skin Resistance information according to each Frequency point calculates skin resistance with the amplitude mating impedance information Anti-information and the amplitude standard deviation mating impedance information；
Amplitude standard deviation is compared with matching error value set in advance, during less than matching error value, The Skin Resistance information determining acquisition is identical with the coupling impedance information prestored, time identical, by mirror Power.
Another further aspect, the application also provides for a kind of terminal realizing authentication, including: central processing unit, letter Number generator, scanning element and storage medium；Wherein,
Central processing unit control signal generator generates the sine wave signal pre-set；Preset scanning The Frequency point of the finger skin of user；Skin scanning data are carried out sampled operational and obtains each set in advance The impedance magnitude that Frequency point is corresponding；Described Skin Resistance information is generated according to the impedance magnitude obtained；Coupling The Skin Resistance information obtained and the impedance information of mating prestored, time identical, by authentication；
Scanning element, for when touching user's finger skin, according to described sine wave signal, according to The finger skin of Frequency point set in advance scanning user, generates skin scanning data；
Storage medium storage is for the coupling impedance information of authentication.
Further, scanning element by the external circuits of Skin Resistance analysis chip or is set in advance in terminal Two metal spring leaf compositions of preset pitch on button.
Further, central processing unit is additionally operable to,
Before skin scanning data are carried out sampled operational, it is judged that whether described skin scanning data comprise institute There are the skin scanning data of Frequency point set in advance；Do not comprise all described Frequency points set in advance During skin scanning data, determine the Frequency point described set in advance not comprised, with this frequency set in advance The external circuits of rate point Skin Resistance analysis chip or be set in advance in two of preset pitch on terminal push The finger skin of metal spring leaf scanning user, until completing the skin of all described Frequency points set in advance Scanning.
Further, central processing unit control signal generator generates the sine wave signal pre-set；In advance First set the Frequency point of the finger skin of scanning user；Skin scanning data are carried out sampled operational and obtains each The impedance magnitude that Frequency point set in advance is corresponding；Described Skin Resistance is generated according to the impedance magnitude obtained Information；Extract the described Skin Resistance information of each Frequency point and the described corresponding amplitude of coupling impedance information；
The amplitude of the Skin Resistance information according to each Frequency point calculates skin resistance with the amplitude mating impedance information Anti-information and the amplitude standard deviation mating impedance information；
Amplitude standard deviation is compared with matching error value set in advance, during less than matching error value, The Skin Resistance information determining acquisition is identical with the coupling impedance information prestored, time identical, by mirror Power.
Compared with prior art, technical scheme includes: obtain the Skin Resistance information of user；? The Skin Resistance information joining acquisition and the impedance information of mating prestored, time identical, by authentication.This Inventive method passes through authentication by the Skin Resistance information obtained, owing to Skin Resistance information cannot be carried out multiple System, it is ensured that only have user oneself can carry out terminal screen and show or the authentication of terminal applies, improve The personal secrets of user.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes of the application Point, the schematic description and description of the present invention is used for explaining the present invention, is not intended that the present invention's Improper restriction.In the accompanying drawings:
Fig. 1 is the flow chart that the present invention realizes the method for authentication；
Fig. 2 is the structured flowchart that the present invention realizes the device of authentication；
Fig. 3 is the structured flowchart that the present invention realizes the terminal of authentication；
Fig. 4 is the metal spring leaf of the preset pitch that first embodiment of the invention is set in advance on terminal push Schematic diagram；
Fig. 5 is first embodiment of the invention Skin Resistance curve and coupling impedance curve schematic diagram.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing Embodiments of the invention are described in detail.It should be noted that in the case of not conflicting, this Shen Embodiment in please and the feature in embodiment can mutual combination in any.
Fig. 1 is the flow chart that the present invention realizes the method for authentication, during as it is shown in figure 1, carry out terminal authentication, Including:
Step 100, the Skin Resistance information of acquisition user；
In this step, the Skin Resistance information obtaining user specifically includes:
By the sine wave signal pre-set, with the finger skin of Frequency point set in advance scanning user, Generate skin scanning data；
Skin scanning data are carried out sampled operational and obtains the impedance width that each Frequency point set in advance is corresponding Value；
Skin Resistance information is generated according to the impedance magnitude obtained.
Preferably, before skin scanning data are carried out sampled operational, the inventive method also includes:
Judge whether skin scanning data comprise the skin scanning data of all Frequency points set in advance；No When comprising the skin scanning data of all Frequency points set in advance, determine the frequency set in advance not comprised Rate point, with the finger skin of this Frequency point set in advance scanning user, until completing all presetting The skin scanning of Frequency point.
Specifically include with the finger skin of Frequency point set in advance scanning user:
The external circuits of Skin Resistance analysis chip or be set in advance in two of preset pitch on terminal push Metal spring leaf when contacting with user's finger skin,
According to sine wave signal, according to the finger skin of Frequency point set in advance scanning user.
Preset pitch is: one finger of user can be made to obtain the distance of contact simultaneously.Here, according to statistics Analyzing, general preset pitch takes 3～6 millimeters.
It should be noted that preset pitch is mainly configured according to user's finger contacts face, for difference Region and the user of different sexes, spacing can carry out size adjustment, and general preset pitch is more than 3 millis Rice, is conducive to carrying out the scanning of the finger skin of user.It addition, metal spring leaf typically uses electric conductivity good Good metal is designed, such as, pyrite, aluminum etc.；The shape of metal spring leaf does not limits, but In industrial design production process, the general regular figure using symmetry is designed, it is simple to produce and beautiful See.
Frequency point set in advance is:
Frequency point based on minimum frequency point set in advance, with base frequency point as frequency multiplication each the most in advance The Frequency point set.
Preferably, Frequency point set in advance be frequency be the arbitrary frequency point of more than 5KHZ.
It should be noted that in order to avoid being affected by the extraneous factor such as xerosis cutis, humidity, the present invention adopts The stability of scanning information is ensure that, in order to make authentication degree of accuracy by the frequency that Frequency point is more than 5KHZ And stability, Frequency point can be increased.
Step 101, the Skin Resistance information of coupling acquisition and the impedance information of mating prestored are identical Time, by authentication.
It should be noted that Skin Resistance information with mate impedance information generally refer to Skin Resistance curve and Coupling impedance curve, or represent the function of curve.
Preferably, the Skin Resistance information that coupling obtains specifically includes with the impedance information of mating prestored:
Extract Skin Resistance information and the coupling corresponding amplitude of impedance information of each Frequency point；
The amplitude of the Skin Resistance information according to each Frequency point calculates skin resistance with the amplitude mating impedance information Anti-information and the amplitude standard deviation mating impedance information；
Amplitude standard deviation is compared with matching error value set in advance, during less than matching error value, The Skin Resistance information determining acquisition is identical with the coupling impedance information prestored.
Matching error value is:
The amplitude of the coupling impedance information of each frequency is squared to add up, and the value after adding up is divided by frequency The point number acquisition quotient that subtracts 1；
Calculate after the quotient of acquisition is opened radical sign and be multiplied by 0.1 numerical value obtained.
It should be noted that according to required precision, matching error value can adjust accordingly, coupling is by mistake Difference is the least, and precision is the highest.
The inventive method passes through authentication, owing to Skin Resistance information cannot by the Skin Resistance information obtained Replicate, it is ensured that only have user oneself can carry out terminal screen and show or the authentication of terminal applies, Improve the personal secrets of user.
Fig. 2 is the structured flowchart that the present invention realizes the device of authentication, as in figure 2 it is shown, include: obtain single Unit and coupling authenticating unit；Wherein,
Acquiring unit, for obtaining the Skin Resistance information of user；
Coupling authenticating unit, believes with the impedance of mating prestored for the Skin Resistance information mating acquisition Breath, time identical, authenticates.
Acquiring unit specifically for,
By the sine wave signal pre-set, with the finger skin of Frequency point set in advance scanning user, Generate skin scanning data；
Skin scanning data are carried out sampled operational and obtains the impedance width that each Frequency point set in advance is corresponding Value；
Skin Resistance information is generated according to the impedance magnitude obtained.
Acquiring unit is additionally operable to,
Before skin scanning data are carried out sampled operational, it is judged that whether skin scanning data comprise all pre- The skin scanning data of the Frequency point first set；Do not comprise the skin scanning of all Frequency points set in advance During data, determine the Frequency point set in advance not comprised, scan user with this Frequency point set in advance Finger skin, until completing the skin scanning of all Frequency points set in advance.
Acquiring unit specifically for,
The external circuits of Skin Resistance analysis chip or be set in advance in two of preset pitch on terminal push Metal spring leaf when touching user's finger skin,
According to described sine wave signal, according to the finger skin of Frequency point set in advance scanning user, raw Become skin scan data；
Skin scanning data are carried out sampled operational and obtains the impedance width that each Frequency point set in advance is corresponding Value；
Skin Resistance information is generated according to the impedance magnitude obtained.
Coupling authenticating unit specifically for,
Extract Skin Resistance information and the coupling corresponding amplitude of impedance information of each Frequency point；
The amplitude of the Skin Resistance information according to each Frequency point calculates skin resistance with the amplitude mating impedance information Anti-information and the amplitude standard deviation mating impedance information；
Amplitude standard deviation is compared with matching error value set in advance, during less than matching error value, The Skin Resistance information determining acquisition is identical with the coupling impedance information prestored, time identical, by mirror Power.
Fig. 3 is the structured flowchart of the terminal of another realization authentication of the present invention, as it is shown on figure 3, include: in Central processor, signal generator, scanning element and storage medium；Wherein,
Central processing unit control signal generator generates the sine wave signal pre-set；Preset scanning The Frequency point of the finger skin of user；Skin scanning data are carried out sampled operational and obtains each set in advance The impedance magnitude that Frequency point is corresponding；Described Skin Resistance information is generated according to the impedance magnitude obtained；Coupling The Skin Resistance information obtained and the impedance information of mating prestored, time identical, by authentication；
Scanning element, for when touching user's finger skin, according to described sine wave signal, according to The finger skin of Frequency point set in advance scanning user, generates skin scanning data；
Scanning element is preset by the external circuits of Skin Resistance analysis chip or be set in advance on terminal push Two metal spring leaf compositions of spacing.
Storage medium storage is for the coupling impedance information of authentication.
Central processing unit is additionally operable to,
Before skin scanning data are carried out sampled operational, it is judged that whether described skin scanning data comprise institute There are the skin scanning data of Frequency point set in advance；Do not comprise all described Frequency points set in advance During skin scanning data, determine the Frequency point described set in advance not comprised, with this frequency set in advance The external circuits of rate point Skin Resistance analysis chip or be set in advance in two of preset pitch on terminal push The finger skin of metal spring leaf scanning user, until completing the skin of all described Frequency points set in advance Scanning.
Central processing unit control signal generator generates the sine wave signal pre-set；Preset scanning The Frequency point of the finger skin of user；Skin scanning data are carried out sampled operational and obtains each set in advance The impedance magnitude that Frequency point is corresponding；Described Skin Resistance information is generated according to the impedance magnitude obtained；Extract The described Skin Resistance information of each Frequency point and the described corresponding amplitude of coupling impedance information；
The amplitude of the Skin Resistance information according to each Frequency point calculates skin resistance with the amplitude mating impedance information Anti-information and the amplitude standard deviation mating impedance information；
Amplitude standard deviation is compared with matching error value set in advance, during less than matching error value, The Skin Resistance information determining acquisition is identical with the coupling impedance information prestored, time identical, by mirror Power.
Carry out understanding that detailed description, embodiment are only used for the inventive method below by way of specific embodiment The statement present invention, is not limited to the protection domain of the inventive method.
Embodiment 1
The present embodiment carries out understanding detailed description by terminal unlocking process to the present invention, the central authorities of terminal Processor (CPU) control signal generator generates the sine wave signal pre-set.
Fig. 4 is the metal spring leaf of the preset pitch that first embodiment of the invention is set in advance on terminal push Schematic diagram, as shown in Figure 4, arranges, by the button of terminal, the metal that preset pitch is 3～6 millimeters of spacing Reed, according to the sine wave signal pre-set, touches medal spring with Frequency point set in advance scanning The finger skin of sheet user, generates skin scanning data；
When having determined the scanning of finger skin of all Frequency points set in advance, to skin scanning data Carry out sampled operational and obtain the impedance magnitude that each Frequency point set in advance is corresponding；When being not fully complete, to not sweeping The Frequency point set in advance retouched is scanned, until after all Frequency points set in advance scan through, then Skin scanning data are carried out sampled operational and obtains the impedance magnitude that each Frequency point set in advance is corresponding.
Here, number and the frequency of Frequency point is set by central processing unit, it is preferred that assume that f0 is Minimum frequency point, then arrange Frequency point based on it, arranges other in advance with base frequency point as frequency multiplication The Frequency point set.F1=2*f0, f2=3*f0, f3=4*f0 are i.e. set ... f (n-1)=n*f0.
Skin Resistance information is generated according to the impedance magnitude obtained.
The Skin Resistance information of coupling acquisition and the impedance information of mating prestored, time identical, reflect Power.
Fig. 5 is first embodiment of the invention Skin Resistance curve and coupling impedance curve schematic diagram, such as Fig. 5 Shown in, wherein, coordinate axes transverse axis represents that Frequency point frequency, the coordinate axes longitudinal axis represent range value.Assume Aix It is respectively frequency fi (i=0 ... the amplitude of Skin Resistance information n) and the width of coupling impedance information with Ax Value.
Then calculate skin according to the amplitude of the Skin Resistance information of each Frequency point with the amplitude mating impedance information Impedance information and the amplitude standard deviation mating impedance information；I.e. calculate amplitude standard deviation by below equation Difference
S = 1 n - 1 Σ i = 1 n ( Aix - Ax ) 2
The present embodiment, matching error value is:
The amplitude of the coupling impedance information of each frequency is squared to add up, and the value after adding up is divided by frequency The point number acquisition quotient that subtracts 1；
Calculate after the quotient of acquisition is opened radical sign and be multiplied by 0.1 numerical value obtained.By formula matching error value Can be expressed as:
δ = 0.1 * 1 n - 1 Σ i = 1 n Ax 2
As S ＜ δ, then assert that Skin Resistance information is identical with the coupling impedance information prestored, right Terminal is unlocked.
Although the embodiment that disclosed herein is as above, but described content only readily appreciates the present invention And the embodiment used, it is not limited to the present invention.Technology people in any art of the present invention Member, on the premise of without departing from the spirit and scope that disclosed herein, can be in the form implemented and thin Any amendment and change is carried out on joint, but the scope of patent protection of the present invention, still must be with appended right Claim is defined in the range of standard.

Claims (18)

1. the method realizing authentication, it is characterised in that including:
Obtain the Skin Resistance information of user；
The Skin Resistance information of coupling acquisition and the impedance information of mating prestored, time identical, by mirror Power.
Method the most according to claim 1, it is characterised in that the Skin Resistance of described acquisition user Information specifically includes:
By the sine wave signal pre-set, with the finger skin of Frequency point set in advance scanning user, Generate skin scanning data；
Skin scanning data are carried out sampled operational and obtains the impedance width that each Frequency point set in advance is corresponding Value；
Described Skin Resistance information is generated according to the impedance magnitude obtained.
Method the most according to claim 2, it is characterised in that described skin scanning data are carried out Before sampled operational, the method also includes:
Judge whether described skin scanning data comprise the skin scanning number of all Frequency points set in advance According to；When not comprising the skin scanning data of all described Frequency points set in advance, determine the institute not comprised State Frequency point set in advance, with the finger skin of this Frequency point set in advance scanning user, until complete Become the skin scanning of all described Frequency points set in advance.
The most according to the method in claim 2 or 3, it is characterised in that with Frequency point set in advance The finger skin of scanning user specifically includes:
The external circuits of Skin Resistance analysis chip or be set in advance in two of preset pitch on terminal push Metal spring leaf when contacting with user's finger skin,
According to described sine wave signal, according to the finger skin of Frequency point set in advance scanning user.
Method the most according to claim 4, it is characterised in that described preset pitch is: can use One, family finger obtains the distance of contact simultaneously.
Method the most according to claim 2, it is characterised in that described Frequency point set in advance is:
Frequency point based on minimum frequency point set in advance, with base frequency point as frequency multiplication each the most in advance The Frequency point set.
Method the most according to claim 5, it is characterised in that described Frequency point set in advance is Frequency is the arbitrary frequency point of more than 5KHZ.
Method the most according to claim 5, it is characterised in that
The Skin Resistance information that described coupling obtains specifically includes with the impedance information of mating prestored:
Extract the described Skin Resistance information of each Frequency point and the described corresponding amplitude of coupling impedance information；
The amplitude of the Skin Resistance information according to each Frequency point calculates skin resistance with the amplitude mating impedance information Anti-information and the amplitude standard deviation mating impedance information；
Amplitude standard deviation is compared with matching error value set in advance, during less than matching error value, The Skin Resistance information determining acquisition is identical with the coupling impedance information prestored.
Method the most according to claim 8, it is characterised in that described matching error value is:
The amplitude of the coupling impedance information of each frequency is squared to add up, and the value after adding up is divided by frequency The point number acquisition quotient that subtracts 1；
Calculate after the quotient of acquisition is opened radical sign and be multiplied by 0.1 numerical value obtained.
10. the device realizing authentication, it is characterised in that including: acquiring unit and coupling authentication are single Unit；Wherein,
Acquiring unit, for obtaining the Skin Resistance information of user；
Coupling authenticating unit, believes with the impedance of mating prestored for the Skin Resistance information mating acquisition Breath, time identical, by authentication.
11. devices according to claim 10, it is characterised in that described acquiring unit specifically for,
By the sine wave signal pre-set, with the finger skin of Frequency point set in advance scanning user, Generate skin scanning data；
Skin scanning data are carried out sampled operational and obtains the impedance width that each Frequency point set in advance is corresponding Value；
Described Skin Resistance information is generated according to the impedance magnitude obtained.
12. devices according to claim 11, it is characterised in that described acquiring unit is additionally operable to, Before skin scanning data are carried out sampled operational, it is judged that whether described skin scanning data comprise institute There are the skin scanning data of Frequency point set in advance；Do not comprise all described Frequency points set in advance During skin scanning data, determine the Frequency point described set in advance not comprised, with this frequency set in advance The finger skin of rate spot scan user, until completing the skin scanning of all described Frequency points set in advance.
13. according to the device described in claim 11 or 12, it is characterised in that described acquiring unit has Body is used for,
The external circuits of Skin Resistance analysis chip or be set in advance in two of preset pitch on terminal push Metal spring leaf when touching user's finger skin,
According to described sine wave signal, according to the finger skin of Frequency point set in advance scanning user, raw Become skin scan data；
Skin scanning data are carried out sampled operational and obtains the impedance width that each Frequency point set in advance is corresponding Value；
Described Skin Resistance information is generated according to the impedance magnitude obtained.
14. according to the device described in claim 11 or 12, it is characterised in that described coupling authentication is single Unit specifically for,
Extract the described Skin Resistance information of each Frequency point and the described corresponding amplitude of coupling impedance information；
The amplitude of the Skin Resistance information according to each Frequency point calculates skin resistance with the amplitude mating impedance information Anti-information and the amplitude standard deviation mating impedance information；
Amplitude standard deviation is compared with matching error value set in advance, during less than matching error value, The Skin Resistance information determining acquisition is identical with the coupling impedance information prestored, time identical, by mirror Power.
15. 1 kinds of terminals realizing authentication, it is characterised in that including: central processing unit, signal occur Device, scanning element and storage medium；Wherein,
Central processing unit control signal generator generates the sine wave signal pre-set；Preset scanning The Frequency point of the finger skin of user；Skin scanning data are carried out sampled operational and obtains each set in advance The impedance magnitude that Frequency point is corresponding；Described Skin Resistance information is generated according to the impedance magnitude obtained；Coupling The Skin Resistance information obtained and the impedance information of mating prestored, time identical, by authentication；
Scanning element, for when touching user's finger skin, according to described sine wave signal, according to The finger skin of Frequency point set in advance scanning user, generates skin scanning data；
Storage medium storage is for the coupling impedance information of authentication.
16. terminals according to claim 15, it is characterised in that described scanning element is hindered by skin The external circuits of analysis resistant chip or be set in advance in two metal spring leaf groups of preset pitch on terminal push Become.
17. according to the terminal described in claim 15 or 16, it is characterised in that described central processing unit It is additionally operable to,
Before skin scanning data are carried out sampled operational, it is judged that whether described skin scanning data comprise institute There are the skin scanning data of Frequency point set in advance；Do not comprise all described Frequency points set in advance During skin scanning data, determine the Frequency point described set in advance not comprised, with this frequency set in advance The external circuits of rate point Skin Resistance analysis chip or be set in advance in two of preset pitch on terminal push The finger skin of metal spring leaf scanning user, until completing the skin of all described Frequency points set in advance Scanning.
18. according to the device described in claim 15 or 16, it is characterised in that described central processing unit Control signal generator generates the sine wave signal pre-set；Preset the finger skin of scanning user Frequency point；Skin scanning data are carried out sampled operational and obtains the resistance that each Frequency point set in advance is corresponding Anti-amplitude；Described Skin Resistance information is generated according to the impedance magnitude obtained；Extract the institute of each Frequency point State Skin Resistance information and the described corresponding amplitude of coupling impedance information；
The amplitude of the Skin Resistance information according to each Frequency point calculates skin resistance with the amplitude mating impedance information Anti-information and the amplitude standard deviation mating impedance information；
Amplitude standard deviation is compared with matching error value set in advance, during less than matching error value, The Skin Resistance information determining acquisition is identical with the coupling impedance information prestored, time identical, by mirror Power.
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