CN105243312A - Password system and encryption and decryption method - Google Patents
Password system and encryption and decryption method Download PDFInfo
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- CN105243312A CN105243312A CN201510780780.0A CN201510780780A CN105243312A CN 105243312 A CN105243312 A CN 105243312A CN 201510780780 A CN201510780780 A CN 201510780780A CN 105243312 A CN105243312 A CN 105243312A
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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
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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
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Abstract
The invention discloses a password system and an encryption and decryption method. The password system comprises a muscle current sensing terminal, a password setting module and a password identification module, wherein the muscle current sensing terminal is used for collecting muscle current on the surface of the skin of a human body and extracting a muscle current signal characteristic value; the password setting module is used for generating a password according to a muscle current signal acquired by the muscle current sensing terminal; the password identification module is used for performing comparison and matching analysis on the muscle current sensing terminal acquired by the muscle current sensing terminal and a set password so as to verify the identity of a user. According to the password system provided by the invention, the password is obtained according to the muscle current signal, and the data security can be improved.
Description
Technical field
The invention belongs to electronic information technical field, relate to a kind of cryptographic system, particularly relate to a kind of cryptographic system be combined with electromyographic signal; Meanwhile, the invention still further relates to a kind of encipher-decipher method.
Background technology
Existing electronic equipment, in order to improve security, is encrypted by the mode of setting code usually.But the security of this mode is poor, password may be intercepted and captured by wooden horse, or is obtained by other people, thus causes classified information to be revealed and property loss.
Meanwhile, conventional cryptographic system cannot verify biological characteristic (as fingerprint, iris), so, as long as password loss, very large loss just may be caused.
In view of this, nowadays in the urgent need to designing a kind of new cryptographic system, to overcome the above-mentioned defect of existing password system existence.
Human body is adjoint a kind of bio signal that can observe in motion process, be called muscle current signal (Electromyography, EMG), the signal observed from skin surface is called surperficial muscle current signal (SurfaceElectromyography, SEMG).
Summary of the invention
Technical matters to be solved by this invention is: provide a kind of cryptographic system, obtains password, can improve data security by muscle current signal.
In addition, the present invention also provides a kind of encipher-decipher method, obtains password, can improve data security by muscle current signal.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of cryptographic system, described cryptographic system comprises: myoelectricity sensing terminal, password arrange module, password identification module;
Described myoelectricity sensing terminal in order to gather user human skin muscle electric current, and extracts electromyographic signal eigenwert;
Described password arranges the muscle current signal generating cipher of module in order to gather according to described myoelectricity sensing terminal;
Described password identification module, in order to the muscle current signal that described myoelectricity sensing terminal gathered and setting code comparison and the matching analysis, realizes the checking of user identity.
As a preferred embodiment of the present invention, described password arranges the skin surface muscle current signal of module in order to record setting user, therefrom analyzes the gesture that this muscle current signal is corresponding; Using the keying sequence of one group of gesture motion sequence as correspondence;
Described password identification module is in order to gesture corresponding to the muscle current signal that identifies myoelectricity sensing terminal and gather, gesture motion sequence is generated after identifying at least one times, the gesture motion sequence that this gesture motion sequence and setting code sequence pair are answered is compared, judges whether consistent or in certain safe range.
As a preferred embodiment of the present invention, described password arranges module in order to generate corresponding password according to the distinctive muscle current signal of setting user, comprises the distinctive biometric identity information of this user in this password;
Described password identification module in order to the muscle current signal that identifies the collection of myoelectricity sensing terminal with set muscle current signal in password and compared, judge whether consistent or in certain safe range.
As a preferred embodiment of the present invention, described password arranges module in order to record setting user distinctive skin surface muscle current signal, therefrom analyzes the gesture that this distinctive muscle current signal is corresponding; Using the keying sequence of one group of gesture motion sequence as correspondence; Muscle current signal corresponding to each action in this keying sequence comprises the distinctive biometric identity information characteristics of this user;
Described password identification module is in order to gesture corresponding to the distinctive muscle current signal that identifies myoelectricity sensing terminal and gather, gesture motion sequence is generated after identifying at least one times, gesture motion sequence corresponding with setting code for this gesture motion sequence is compared, judges whether consistent or in certain safe range.
As a preferred embodiment of the present invention, described myoelectricity sensing terminal comprises at least two wearable unit, and at least one wearable unit is provided with myoelectric sensor, signal processing circuit, is connected between adjacent two wearable unit by Flexible Connector; Signal processing circuit extracts electromyographic signal eigenwert, and this value is preserved, analyzes, is uploaded to desired location.
As a preferred embodiment of the present invention, described myoelectricity sensing terminal is circular device, is arranged at user's arm, and user makes single or multiple certain gestures action can produce surperficial muscle current signal, gesture motion, as keying sequence, produces muscle current signal sequence;
System is being carried out in the process of feature extraction and decoding to muscle current signal sequence, except doing except user cipher matching judgment to gesture sequence, from electromyographic signal, extract the identity characteristic information of user simultaneously, carry out user identity coupling, realize the dual authentication mechanism of identity and keying sequence.
As a preferred embodiment of the present invention, the identity characteristic information of user and gesture motion sequence information, as password, in an encrypted form, be stored in described circular device;
The gesture motion sequence done as user meets stored gesture motion sequence information, and when the user identity characteristic information therefrom extracted also mates, the instruction that certification is passed through by circular device, mails to the controlled end needing unlock password with encryption communication form;
Secret key appointment when user carries out initial configuration to equipment of encryption communication; Identity characteristic information and gesture motion sequence information, when user carries out initial configuration to equipment, by doing gesture motion sequence, produced, and cryptographic storage is in equipment by the on-the-spot computing of circular device.
As a preferred embodiment of the present invention, the identity characteristic information of user and gesture motion sequence information, as password, in an encrypted form, be stored in controlled end, or server, or in cloud memory device;
User is when doing identity and cipher authentication, make corresponding predefined gesture sequence, obtained the arm electromyographic signal of user by described circular device, and extract various features value parameter, mail to the controlled end needing unlock password with encryption communication form, or server, or cloud memory device, by these systems after receiving eigenwert parameter, carry out computing, to realize user identity and password compares and coupling work, and by certification by or the information of failure mail to controlled end in an encrypted form; Secret key appointment when user carries out initial configuration to equipment of encryption communication;
Identity characteristic information and gesture motion sequence information, when user carries out initial configuration to equipment, by the gesture motion sequence of user, produced by the on-the-spot computing of circular device and extract eigenwert, be sent to controlled end, or server, further mathematical operation is carried out in cloud storage etc., to generate user identity and user password information, and cryptographic storage is in this locality.
As a preferred embodiment of the present invention, described myoelectricity sensing terminal is arranged in clothes or protector, and this clothes or protector are as the acquisition terminal of electromyographic signal.
As a preferred embodiment of the present invention, myoelectricity sensing terminal is close to user's arm skin surface, is wherein provided with one or more surperficial muscle current signal sensor, for picking up myoelectricity current signal;
Equipment is in-built to be equipped with but to be not limited to the filtering of muscle current signal, amplification, analog to digital change-over circuit, data processing and control module, data and program storage block, power module, display module, wireless communication module.
The encipher-decipher method of above-mentioned cryptographic system, described method comprises the steps: that user passes through to wear myoelectricity collecting device collection surface muscle electric current, the muscle current signal eigenwert of the one or many certain gestures/action of equipment autostore and analysis user, equipment saves as an eigenmatrix by analyzing the gesture/motion characteristic value drawn, and is stored in equipment or cloud server using this matrix as password setting matrix;
When user completes after this password arranges, when wearable device carries out cryptographic check again, need do and same one or many certain gestures/action is set with password, equipment carries out characteristic value signal analysis by within the scope of certain hour to the one or many certain gestures/action of user, and draw cryptographic check matrix, cryptographic check matrix is carried out probability density with the password setting matrix in the equipment of being stored in or in cloud server compare, exceed setting threshold value then to think password the match is successful, thus unlock with wireless telecommunications.
Beneficial effect of the present invention is: the cryptographic system that the present invention proposes and encipher-decipher method, obtain password by muscle current signal, can improve data security.
The surface electromyogram signal that the close observation point of skin surface obtains above human muscle, has similarity between individuality, also contains the biological information of the uniqueness of each individuality in electromyographic signal simultaneously, and this kind of characteristic information can be used for carrying out individual identification.People is when doing various gesture motion, and the muscle of each position of arm can show different electromyographic signal features, can the gesture motion done of the anti-user of release by these features, and further, these gesture motion can be used as user cipher.In conjunction with above-mentioned individual biological information and gesture motion information, the double authentication of user identity and user cipher in cryptographic system can be realized.
Accompanying drawing explanation
Fig. 1 is the appearance schematic diagram of the cryptographic system being integrated with muscle current signal sensor.
Fig. 2 is the inner structure schematic diagram of the cryptographic system being integrated with muscle current signal sensor.
Fig. 3 is the processing flow chart of epidermis muscle current signal.
Fig. 4 is the composition schematic diagram of cryptographic system of the present invention.
Fig. 5 is the structural representation of embodiment eight Elastic web member.
Fig. 6 is the structural representation of embodiment eight Elastic bindiny mechanism.
Fig. 7 is the connection diagram of adjacent two wearable unit in embodiment eight.
Fig. 8 is the structural representation (part wearable unit cover upper shell) of myoelectricity sensing terminal in embodiment eight.
Fig. 9 is the structural representation of embodiment nine Elastic web member.
Figure 10 is the connection diagram of adjacent two wearable unit in embodiment nine.
Figure 11 is the structural representation (part wearable unit cover upper shell) of myoelectricity sensing terminal in embodiment nine.
Embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with accompanying drawing.
Embodiment one
Present invention is disclosed a kind of cryptographic system, core of the present invention is that the muscle current biometric signal of human arm is used for authenticating user identification and cryptographic check.
Concrete technology of the present invention is embodied as the telescopic annular segments design of profile, may be worn on user's wrist or fore-arm.Inside ring device, be close to arm skin place, the major muscles position characteristic controlling finger and wrist according to forearm places multichannel epidermis muscle current sensor.Sensor may but be not limited to adopt single difference or Double deference pattern, the signal of pickup is by corresponding simulating signal filtering, amplify, the circuit such as analog signal figure conversion, become signal processor or the accessible continuous print digital signal streams of CPU (central processing unit), realize the process of two aspects: gesture recognition process algorithm, for extracting the characteristic parameter of each gesture, realizing gesture and distinguish and identify; The biological characteristic of user identity extracts.Based on above-mentioned gesture identification and user's body feature extraction result, by comparing with the gesture sequence of Initialize installation in equipment and user characteristics value, realize authenticating user identification and cryptographic check.
Refer to Fig. 1, Fig. 1 is a kind of possible appearance form of the cryptographic system 100 being integrated with muscle current signal sensor.Device shows as a kind of circular device being worn on the similar bracelet at wrist or arm place, is close to the wrist of user or the skin place of arm.
Refer to Fig. 2, Fig. 2 is the inner structure schematic diagram of the cryptographic system 100 being integrated with muscle current signal sensor.Cryptographic system 100 is divided into multiple module, and wherein host module 101 is including but not limited to lower component: data processing and control module 102, data and program storage unit (PSU) 103, communication unit 103, display unit 104, pushbutton switch input block 105, analog to digital signal converter unit 106, battery and charging circuit unit 107 etc.; Cryptographic system 100 also comprises multiple surperficial muscle current sensor module 108, and its composition is including but not limited to surperficial muscle current pickup electrode 108a, muscle current signal filtering circuit 108b, muscle current signal amplifier circuit 108c etc.
Refer to Fig. 3, what Fig. 3 indicated is a series of processing links that the epidermis muscle current signal 306 come from surface of arm skin may pass through.From the faint original table musculus cutaneus meat current signal 306 of difference myoelectricity sensing terminal pickup, peak-to-peak value within+-1mV, to detecting the useful signal frequency range of gesture within 0 ~ 1000Hz.Original signal (epidermis muscle current signal 306) zooms into through analog amplifier circuit 301 amplifying signal 307 that scope is applicable to subsequent A/D change-over circuit 303 range, such as 1000 times; Circuit 302 removes the frequency range useless to gesture characteristic parameter extraction after filtering again, such as 50Hz or 60Hz Hz noise, to reduce the interference to algorithm; Amplification and filtered signal 308 convert digital signal 309 according to that Qwest two sampling principle to by analog to digital change-over circuit 303; Synchronous multichannel myoelectricity digital signal 309 and motion sensor 310 data carry out Gesture Recognition Algorithm process through central processing unit or signal processing unit 304, to extract gesture feature parameter 305, and realize the differentiation between gesture eventually through characteristic parameter.Should illustrate, this schematic diagram just for illustration of possible the implementation framework of whole signal processing flow, actual realize in possible but be not limited solely to this framework.
Embodiment two
Refer to Fig. 4, the present invention discloses a kind of cryptographic system, and described cryptographic system comprises: myoelectricity sensing terminal 10, password arrange module 20, password identification module 30.
Described myoelectricity sensing terminal 10 in order to gather user human skin muscle electric current, and extracts electromyographic signal eigenwert.Described password arranges the muscle current signal generating cipher of module 20 in order to gather according to described myoelectricity sensing terminal 10.Described password identification module 30, in order to the muscle current signal that gathered by described myoelectricity sensing terminal 10 and setting code comparison and the matching analysis, realizes the checking of user identity.
In the present embodiment, described password arranges the skin surface muscle current signal of module in order to record setting user, therefrom analyzes the gesture that this muscle current signal is corresponding; Using the keying sequence of one group of gesture motion sequence as correspondence.Described password identification module is in order to gesture corresponding to the muscle current signal that identifies myoelectricity sensing terminal and gather, gesture motion sequence is generated after identifying at least one times, the gesture motion sequence that this gesture motion sequence and setting code sequence pair are answered is compared, judges whether consistent or in certain safe range.
Described myoelectricity sensing terminal can be a circular device, comprises at least two wearable unit, and at least one wearable unit is provided with myoelectric sensor, signal processing circuit, is connected between adjacent two wearable unit by Flexible Connector; Signal processing circuit extracts electromyographic signal eigenwert, and this value is preserved, analyzes, is uploaded to desired location.The structure of myoelectricity sensing terminal can See Examples eight, embodiment nine description; But its structure is also not limited thereto.
Being close to user's arm skin surface in circular device, laying one or more surperficial muscle current signal sensor, for picking up myoelectricity current signal.Equipment is in-built to be equipped with but to be not limited to the filtering of muscle current signal, amplification, analog to digital change-over circuit, data processing and control module, data and program storage block, power module, display module, wireless communication module.
The encipher-decipher method of cryptographic system of the present invention is as follows: by wearing myoelectricity collecting device collection surface muscle electric current, (surperficial muscle electric current includes but not limited to human arm to user, wrist, leg and neck), (this eigenwert includes but not limited to the power of muscle current signal to the muscle current signal eigenwert of the one or many certain gestures/action of equipment autostore and analysis user, strength of current, spectral characteristic, duration, zero passage is counted), equipment saves as an eigenmatrix by analyzing the gesture/motion characteristic value drawn, and this matrix is stored in equipment or cloud server as password setting matrix, when user completes after this password arranges, when wearable device carries out cryptographic check again, need do and same one or many certain gestures/action is set with password, equipment carries out characteristic value signal analysis by within the scope of certain hour to the one or many certain gestures/action of user, and draw cryptographic check matrix, cryptographic check matrix is carried out probability density with the password setting matrix in the equipment of being stored in or in cloud server compare, exceed certain threshold value then to think password the match is successful, thus unlock with wireless telecommunications such as bluetooth/WIFI.
Embody rule is described below: user wears myoelectricity and gathers bracelet equipment unblock mobile phone screen.
First user arranges unlocking pin by wearing myoelectricity collection bracelet equipment, such as user clenches fist twice expression unlocking pin, the muscle current signal eigenwert of bracelet equipment autostore and this twice certain gestures of analysis user, and this twice gesture feature value is saved as an eigenmatrix, this eigenmatrix is stored in bracelet device memory as password setting matrix by bracelet equipment, and now user completes the setting of this password.When user again wear bracelet equipment carry out cryptographic check time, need do and same gesture of clenching fist for twice is set with password, bracelet equipment carries out characteristic value signal analysis by 2 seconds time ranges to the gesture of clenching fist for twice of user, and draw cryptographic check matrix, cryptographic check matrix is carried out probability density with the password setting matrix be stored in bracelet equipment compare, the match is successful then to think password more than 80% probability similarity, thus unlock mobile phone screen with bluetooth communication.
Embodiment three
The difference of the present embodiment and embodiment two is, in the present embodiment, described password arranges module in order to generate corresponding password according to the distinctive muscle current signal of setting user.
Described password identification module in order to the muscle current signal that identifies the collection of myoelectricity sensing terminal with set muscle current signal in password and compared, judge whether consistent or in certain safe range.
Embodiment four
The difference of the present embodiment and embodiment two is, in the present embodiment, described password arranges module in order to record setting user distinctive skin surface muscle current signal, therefrom analyzes the gesture that this distinctive muscle current signal is corresponding; Using the keying sequence of one group of gesture motion sequence as correspondence.
Described password identification module is in order to gesture corresponding to the distinctive muscle current signal that identifies myoelectricity sensing terminal and gather, gesture motion sequence is generated after identifying at least one times, gesture motion sequence corresponding with setting code for this gesture motion sequence is compared, judges whether consistent or in certain safe range.
Embodiment five
The difference of the present embodiment and embodiment two is, in the present embodiment, described myoelectricity sensing terminal is circular device, be arranged at user's arm, user makes gesture motion can produce surperficial muscle current signal, and gesture motion, as keying sequence, produces muscle current signal sequence.
System is being carried out in the process of feature extraction and decoding to muscle current signal sequence, except doing except user cipher matching judgment to gesture sequence, from electromyographic signal, extract the identity characteristic information of user simultaneously, carry out user identity coupling, realize the dual authentication mechanism of identity and keying sequence.
Embodiment six
The difference of the present embodiment and embodiment two is, in the present embodiment, the identity characteristic information of user and gesture motion sequence information, as password, are stored in described circular device in an encrypted form.
The gesture motion sequence done as user meets stored gesture motion sequence information, and when the user identity characteristic information therefrom extracted also mates, the instruction that certification is passed through by circular device, mails to the controlled end needing unlock password with encryption communication form.
Secret key appointment when user carries out initial configuration to equipment of encryption communication; Identity characteristic information and gesture motion sequence information, when user carries out initial configuration to equipment, by doing gesture motion sequence, produced, and cryptographic storage is in equipment by the on-the-spot computing of circular device.
Embodiment seven
The difference of the present embodiment and embodiment two is, in the present embodiment, the identity characteristic information of user and gesture motion sequence information, as password, in an encrypted form, are stored in controlled end, or server, or in cloud memory device.
User is when doing identity and cipher authentication, make corresponding predefined gesture sequence, obtained the arm electromyographic signal of user by described circular device, and extract various features value parameter, mail to the controlled end needing unlock password with encryption communication form, or server, or cloud memory device, by these systems after receiving eigenwert parameter, carry out computing, to realize user identity and password compares and coupling work, and by certification by or the information of failure mail to controlled end in an encrypted form; Secret key appointment when user carries out initial configuration to equipment of encryption communication.
Identity characteristic information and gesture motion sequence information, when user carries out initial configuration to equipment, by the gesture motion sequence of user, produced by the on-the-spot computing of circular device and extract eigenwert, be sent to controlled end, or server, further mathematical operation is carried out in cloud storage etc., to generate user identity and user password information, and cryptographic storage is in this locality.
Embodiment eight
The difference of the present embodiment and embodiment two is, in the present embodiment, refer to Fig. 5 to Fig. 8, described Flexible Connector comprises two flexible connection mechanisms 201, flexible connection mechanism 201 comprises two groups of elastic arms, 2011, two groups, the end elastic arm that crosses is intersected in the end that crosses; Often organize elastic arm and comprise at least one elastic arm 2012; Described two groups of elastic arms connect two adjacent wearable unit 300 respectively.One end of elastic arm 2012 is connected with the end 2011 that crosses, and the other end is provided with a hook body 2013, can insert the connecting groove place of corresponding wearable unit 300.In the present embodiment, described flexible connection mechanism 201 is V-shaped.
Embodiment nine
The difference of the present embodiment and embodiment eight is, in the present embodiment, refers to Fig. 9 to Figure 11, and described Flexible Connector 21 comprises elastic mechanism main body 211, and the two ends of elastic mechanism main body 211 connect at least Liang Ge bindiny mechanism 212 respectively; Described elastic mechanism main body 211 comprises at least two connected V-type elastic mechanisms; One end of described bindiny mechanism 212 is connected to elastic mechanism main body 211, and the other end is provided with at least one thin inserted link 213, is convenient to the hole place inserting wearable unit 300.Described bindiny mechanism 212 is roughly in L-type.The contact portion of Liang Ge bindiny mechanism and elastic mechanism main body 211 is generally u-shaped.
Embodiment ten
Described myoelectricity sensing terminal is arranged in clothes or protector, and this clothes or protector are as the acquisition terminal of electromyographic signal.As multiple wearable unit being sewn in clothes, or be arranged in the wearing clothes such as wrister, elbow support, legging, waist support.
In sum, the cryptographic system that the present invention proposes, obtains password by muscle current signal, can improve data security.
The surface electromyogram signal that the close observation point of skin surface obtains above human muscle, has similarity between individuality, also contains the biological information of the uniqueness of each individuality in electromyographic signal simultaneously, and this kind of characteristic information can be used for carrying out individual identification.People is when doing various gesture motion, and the muscle of each position of arm can show different electromyographic signal features, can the gesture motion done of the anti-user of release by these features, and further, these gesture motion can be used as user cipher.In conjunction with above-mentioned individual biological information and gesture motion information, the double authentication of user identity and user cipher in cryptographic system can be realized.
Here description of the invention and application is illustrative, not wants by scope restriction of the present invention in the above-described embodiments.Distortion and the change of embodiment disclosed are here possible, are known for the replacement of embodiment those those of ordinary skill in the art and the various parts of equivalence.Those skilled in the art are noted that when not departing from spirit of the present invention or essential characteristic, the present invention can in other forms, structure, layout, ratio, and to realize with other assembly, material and parts.When not departing from the scope of the invention and spirit, can other distortion be carried out here to disclosed embodiment and change.
Claims (10)
1. a cryptographic system, is characterized in that, described cryptographic system comprises: myoelectricity sensing terminal, password arrange module, password identification module;
Described myoelectricity sensing terminal in order to gather user human skin muscle electric current, and extracts muscle current signal eigenwert;
Described password arranges the muscle current signal generating cipher of module in order to gather according to described myoelectricity sensing terminal;
Described password identification module, in order to the muscle current signal that described myoelectricity sensing terminal gathered and setting code comparison and the matching analysis, realizes the checking of user identity.
2. cryptographic system according to claim 1, is characterized in that:
Described password arranges the skin surface muscle current signal of module in order to record setting user, therefrom analyzes the action that this muscle current signal is corresponding; Using the keying sequence of set sequence as correspondence;
Described password identification module, in order to identify corresponding action according to the muscle current signal of myoelectricity sensing terminal collection, generates action sequence after identifying at least one times; The action sequence that this action sequence and setting code sequence pair are answered is compared, judges whether consistent or in certain safe range.
3. cryptographic system according to claim 1, is characterized in that:
Described password arranges module in order to generate corresponding password according to the distinctive muscle current signal of setting user, comprises the distinctive biometric identity information of this user in this password;
Described password identification module, in order to identify that in the muscle current signal of myoelectricity sensing terminal collection and setting code, muscle current signal is compared, judges whether consistent or in certain safe range.
4. cryptographic system according to claim 1, is characterized in that:
Described password arranges module in order to record setting user distinctive skin surface muscle current signal, therefrom analyzes the action that this distinctive muscle current signal is corresponding; Using the keying sequence of set sequence as correspondence; Muscle current signal corresponding to each action in this keying sequence comprises the distinctive biometric identity information characteristics of this user;
Described password identification module is in order to action corresponding to the distinctive muscle current signal that identifies myoelectricity sensing terminal and gather, action sequence is generated after identifying at least one times, action sequence corresponding with setting code for this action sequence is compared, judges whether consistent or in certain safe range.
5. cryptographic system according to claim 1, is characterized in that:
Described myoelectricity sensing terminal comprises at least two wearable unit, and at least one wearable unit is provided with myoelectric sensor, signal processing circuit, is connected between adjacent two wearable unit by Flexible Connector; Signal processing circuit extracts electromyographic signal eigenwert, and this value is preserved, analyzes, is uploaded to desired location.
6. cryptographic system according to claim 1, is characterized in that:
Described myoelectricity sensing terminal is circular device, is arranged at user's arm, and user makes single or multiple certain gestures action can produce surperficial muscle current signal, and gesture motion, as keying sequence, produces muscle current signal sequence;
System is being carried out in the process of feature extraction and decoding to muscle current signal sequence, except doing except user cipher matching judgment to gesture sequence, from electromyographic signal, extract the identity characteristic information of user simultaneously, carry out user identity coupling, realize the dual authentication mechanism of identity and keying sequence.
7. cryptographic system according to claim 6, is characterized in that:
The identity characteristic information of user and gesture motion sequence information, as password, are stored in described circular device in an encrypted form; The gesture motion sequence done as user meets stored gesture motion sequence information, and when the user identity characteristic information therefrom extracted also mates, the instruction that certification is passed through by circular device, mails to the controlled end needing unlock password with encryption communication form; Secret key appointment when user carries out initial configuration to equipment of encryption communication; Identity characteristic information and gesture motion sequence information, when user carries out initial configuration to equipment, by doing gesture motion sequence, produced, and cryptographic storage is in equipment by the on-the-spot computing of circular device;
Or the identity characteristic information of user and gesture motion sequence information, as password, are stored in controlled end in an encrypted form, or server, or in cloud memory device; User is when doing identity and cipher authentication, make corresponding predefined gesture sequence, the arm electromyographic signal of user is obtained by described circular device, and extract various features value parameter, mail to the controlled end or server or cloud memory device that need unlock password with encryption communication form, by these systems after receiving eigenwert parameter, carry out computing, to realize user identity and password compares and coupling work, and by certification by or the information of failure mail to controlled end in an encrypted form; Secret key appointment when user carries out initial configuration to equipment of encryption communication; Identity characteristic information and gesture motion sequence information, when user carries out initial configuration to equipment, by the gesture motion sequence of user, produced by the on-the-spot computing of circular device and extract eigenwert, be sent to controlled end or server or cloud memory device and carry out further mathematical operation, to generate user identity and user password information, and cryptographic storage is in this locality.
8. cryptographic system according to claim 1, is characterized in that:
Described myoelectricity sensing terminal is arranged in clothes or protector, and this clothes or protector are as the acquisition terminal of electromyographic signal.
9. cryptographic system according to claim 1, is characterized in that:
Myoelectricity sensing terminal is close to user's arm skin surface, is wherein provided with one or more surperficial muscle current signal sensor, for picking up myoelectricity current signal;
In equipment, device comprises the filtering of muscle current signal, amplification, analog to digital change-over circuit, data processing and control module, data and program storage block, power module, display module, wireless communication module.
10. the encipher-decipher method of the described cryptographic system of one of claim 1 to 9, is characterized in that, described method comprises the steps:
User is by wearing myoelectricity collecting device collection surface muscle electric current, the muscle current signal eigenwert of the one or many certain gestures/action of equipment autostore and analysis user, equipment saves as an eigenmatrix by analyzing the gesture/motion characteristic value drawn, and is stored in equipment or cloud server using this matrix as password setting matrix;
When user completes after this password arranges, when wearable device carries out cryptographic check again, need do and same one or many certain gestures/action is set with password, equipment carries out characteristic value signal analysis by within the scope of certain hour to the one or many certain gestures/action of user, and draw cryptographic check matrix, cryptographic check matrix is carried out probability density with the password setting matrix in the equipment of being stored in or in cloud server compare, exceed setting threshold value then to think password the match is successful, thus unlock with wireless telecommunications.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106778626A (en) * | 2016-12-21 | 2017-05-31 | 江西师范大学 | A kind of random sequence generation device based on electrocardiosignal |
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