CN106789096A - A kind of biological characteristic cipher authentication method and device - Google Patents
A kind of biological characteristic cipher authentication method and device Download PDFInfo
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- CN106789096A CN106789096A CN201710204757.6A CN201710204757A CN106789096A CN 106789096 A CN106789096 A CN 106789096A CN 201710204757 A CN201710204757 A CN 201710204757A CN 106789096 A CN106789096 A CN 106789096A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3226—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using a predetermined code, e.g. password, passphrase or PIN
- H04L9/3231—Biological data, e.g. fingerprint, voice or retina
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
- H04L9/0866—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving user or device identifiers, e.g. serial number, physical or biometrical information, DNA, hand-signature or measurable physical characteristics
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
- H04L9/0869—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds
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- Biodiversity & Conservation Biology (AREA)
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The present invention provides a kind of biological characteristic cipher authentication method, including biological initial characteristicses typing step：Gather and extract initial biological characteristic BC0；Random number R 0 is obtained, and protection key key is generated with random number R 0p0；Use protection key keyp0 pair (R0 | BC0) is encrypted E (R0 | BC0), used as biometric templates BCM；Index index0 is generated by initial biological characteristic BC0；Biological characteristic authentication step：Gather and extract biological characteristic BC1；Index index1 is generated by initial biological characteristic BC1；Corresponding random number R 1 and biometric templates BCM1 are read according to index index1；Protection key key is generated with random number R 1p1, and use keyp1 pair (R1 | BC1) is encrypted E (R1 | BC1) and obtains biometric templates BCM '；Contrast biometric templates BCM ' and the biometric templates BCM for storing, if judging whether matching.The biological characteristic cipher authentication method that the present invention is provided, with advantages below：Biometric templates are generated with random number and biological characteristic combining encryption, it is ensured that the Unlinkability of biological characteristic and biometric templates.
Description
Technical field
The present invention relates to information security field, and in particular to a kind of biological characteristic cipher authentication method and device.
Background technology
Cipher machine is had been widely used in the important field such as finance, army, government affairs, and cipher machine is carried to the data transmitted
For encryption and decryption service, to ensure the security of data.At present, cipher machine is widely used biological information and carries out identity and recognizes
Card.
The features such as biological characteristic is because of its intrinsic uniqueness, stability, accuracy and ease for use turn into it is widely studied with make
Feature.But biological characteristic will cause the biological characteristic forever unavailable once successfully stolen or attacked, and people
Biological characteristic is very limited, unlike traditional authentication medium such as password, IC etc. can be cancelled arbitrarily or be changed.
Therefore, it is safe to ensure using for cipher machine, it is necessary to assure the security and biological characteristic mould of biological attribute data
The Unlinkability of plate, and then need a kind of biological characteristic cipher authentication method and device for cipher machine.
The content of the invention
It is raw it is an object of the invention to provide one kind for the problem that above-mentioned biological characteristic in the prior art is easily stolen
Thing feature cipher authentication method and device.
To achieve these goals, the technical solution adopted by the present invention is as follows：
A kind of biological characteristic cipher authentication method, including biological initial characteristicses typing step and biological characteristic authentication step,
Biological initial characteristicses typing step：
S100：Collection biological information simultaneously extracts initial biological characteristic BC0；
S110：Random number R 0 is obtained, and protection key key is generated with random number R 0p0, store random number R 0；
S120：Use protection key keyp0 pair (R0 | BC0) encryption, encrypts the ciphertext E (R0 | BC0) for being formed as biological
Feature templates BCM, storage biometric templates BCM；
S130：Index index0, storage index index0 are generated by initial biological characteristic BC0；
Biological characteristic authentication step：
S200：Collection biological information simultaneously extracts biological characteristic BC1；
S210：Index index1 is generated by initial biological characteristic BC1；
S220：Corresponding random number R 1 and biometric templates BCM1 are read according to index index1；
S230：Protection key key is generated with random number R 1p1, and use keyp1 pair (R1 | BC1) it is encrypted, encrypt shape
Into ciphertext E (R1 | BC1) as the biometric templates BCM ' of biological characteristic authentication；
S240：Contrast biometric templates BCM ' and the biometric templates BCM for storing, if the two is matched, authentication
Success, if mismatching, authentication failure.
Further, in step S240, if authentication fails, step S200 is re-started, until reaching verification threshold.
Further, random number R 0, biometric templates BCM are to index index0 as index correspondence storage.
Further, in step S110, random number R 0 is obtained by noise source；And/or biological information be fingerprint, iris or
Refer to vein.
Further, protection key key is generated with random number R 0 in step S110pIn 0 mode and step S230 with
Machine number R1 generation protection keys keyp1 mode is consistent；
And/or lead to step S210 by way of initial biological characteristic BC0 generates index index0 in step S130
The mode for crossing initial biological characteristic BC1 generations index index1 is consistent.
Further, random number R 0 changes generation protection key key by function in step S110p0；
And/or random number R 1 changes generation protection key key by function in step S230p1。
Further, Hash (BC0) is obtained by carrying out hash computing to initial biological characteristic BC0 in step S130, and
Certain one piece of data is intercepted from Hash (BC0) as index index0；
And/or obtain Hash (BC1) by carrying out to initial biological characteristic BC1 hash computing in step S210, and from
Certain one piece of data is intercepted in Hash (BC1) and obtains the index index1.
A kind of biological characteristic cipher authentication device, including：
Biological characteristic typing module, for carrying out the collection of biological information and extracting biological characteristic BC；
Crypto-operation module, for being encrypted to biological characteristic, the encryption of data；Storage index index,
Biometric templates, random number.
Further, crypto-operation module is used to obtain random number by noise source in user's registration typing biological characteristic
R；
Crypto-operation module is used to change generation protection key key by function with random number Rp, use protection key keyp
To (R | BC) encryption, and ciphertext E after encryption (R | BC) as biometric templates BCM；
Crypto-operation module obtains Hash (BC) for carrying out hash computing to biological characteristic BC, and is intercepted from Hash (BC)
Certain one piece of data obtains index index；
Biometric templates BCM when when crypto-operation module being used to compare user authentication with user's registration, and judgement is
No matching.
Further, random number R, index index, biometric templates BCM correspondence storages are in memory module.
The present invention is obtained in that following Advantageous Effects by above technical scheme：
(1) it is used as component with biological characteristic combining encryption generation biometric templates BCM by introducing random number R, it is ensured that
The uniqueness of biometric templates BCM, it is ensured that the Unlinkability of biological characteristic and biometric templates, i.e., cannot be from biological spy
Levy template direct access biological characteristic；
(2) random number R produced by the noise source in encryption apparatus generates biometric templates, the biology of same user
Feature templates are different in different encryption apparatus, it is ensured that independence and security between encryption apparatus.
Certainly, implementing any product of the invention must be not necessarily required to while reaching all the above technique effect.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes a part of the invention, this hair
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is that the biological initial characteristicses typing of the biological characteristic cipher authentication method and device described in the embodiment of the present invention is walked
Rapid flow chart；
Fig. 2 is the biological characteristic authentication step of biological characteristic cipher authentication method described in the embodiment of the present invention and device
Flow chart.
Specific embodiment
Some vocabulary have such as been used to censure specific components in the middle of specification and claim.Those skilled in the art should
It is understood that hardware manufacturer may call same component with different nouns.This specification and claims are not with name
The difference of title is used as distinguishing the mode of component, but the difference with component functionally is used as the criterion distinguished.Such as logical
Specification and claim mentioned in " including " be an open language, therefore should be construed to " including but not limit
In ".To implement better embodiment of the invention, so the description is to illustrate general original of the invention to specification subsequent descriptions
For the purpose of then, the scope of the present invention is not limited to.Protection scope of the present invention when regard the appended claims person of defining as
It is accurate.
Embodiment 1
As depicted in figs. 1 and 2, a kind of biological characteristic cipher authentication method that the present embodiment is provided, including it is biological initial special
Levy typing step and biological characteristic authentication step, biological initial characteristicses typing step：First, user passes through biological characteristic typing mould
The biological information of block collection user simultaneously extracts initial biological characteristic BC0 according to the biological information of user；Meanwhile, obtained by noise source
Random number R 0 is taken, and protection key key is generated with random number R 0p0, random number R 0 is stored, random number R 0 is biometric templates
Component, obtaining random number R 0 by noise source can ensure the randomness and uniqueness of random number R 0；Then, it is close using protecting
Key keyp0 pair (R0 | BC0) encryption, encrypts the ciphertext E (R0 | BC0) for being formed and, as biometric templates BCM, stores biological characteristic
Template BCM, the algorithm of encryption can be symmetric encipherment algorithm, the ciphertext after E (R0 | BC0) mark encryption；It is special by first eozoon
Levy BC0 generation index index0, storage index index0；Random number R 0, biometric templates BCM are to index correspondence with index
Storage, so in biological characteristic authentication, as long as obtaining index index0, can just read random number corresponding with index index0
R0 and biometric templates BCM.
Biological characteristic authentication step：The biological information of user is gathered first and is extracted according to the biological information of user give birth to
Thing feature BC1；Then index index1 is generated by initial biological characteristic BC1；Read according to index index1 corresponding random
Number R1 and biometric templates BCM1；Protection key key is generated with random number R 1p1, and use keyp1 encryption (R1 | BC1), plus
The ciphertext E (R1 | BC1) of close formation is used as the biometric templates BCM ' of biological characteristic authentication；Contrast biometric templates BCM '
With the biometric templates BCM of storage, if the two is matched, authentication is successful, there is provided cryptographic service, if mismatching, identity is tested
Card failure.If authentication fails, restart biological characteristic authentication step, until reaching verification threshold.Cryptographic service can be with
It is business datum enciphering/deciphering, maintenance of personal biology characteristics for being carried out according to user's request etc..
Wherein, biological information can be fingerprint, iris, refer to vein or other can be used for the biological information of authentication, raw
Thing initial characteristicses typing step is consistent with the biological information in biological characteristic authentication step, for example, all choose fingerprint to carry out biology
Initial characteristicses typing step and biological characteristic authentication step.Protection key key is generated with random number R 0p0 mode is random with use
Number R1 generation protection keys keyp1 mode is consistent, so, when random number R 0 is equal with random number R 1, protects key keyp0
With protection key keyp1 is also equal.It is special with by first eozoon by way of initial biological characteristic BC0 generates index index0
The mode for levying BC1 generation indexes index1 is consistent, so, when eozoon feature BC0 is identical with biological characteristic BC1 originally, index
Index0 is also identical with index index1.
Further, random number R 0 changes generation protection key key by functionp0；Random number R 1 becomes metaplasia by function
Into protection key keyp1, function here can be a function, or a series of functions.
Further, Hash (BC0) is obtained by carrying out to initial biological characteristic BC0 hash computing, and from Hash (BC0)
Middle certain one piece of data of interception is used as index index0；Hash is obtained by carrying out hash computing to initial biological characteristic BC1
(BC1), and from Hash (BC1) intercept certain one piece of data and obtain the index index1.Similarly, index index0 and index
Index1 can also be obtained by the way of other are suitable.
Embodiment 2
As depicted in figs. 1 and 2, a kind of biological characteristic cipher authentication device that the present embodiment is provided, specifically a kind of close
Ink recorder, it includes biological characteristic typing module, crypto-operation module.Biological characteristic typing module is used to carry out adopting for biological information
Collection and extraction biological characteristic BC, biological characteristic typing module can be external with cipher machine or be embedded in cipher machine, the note of user
Volume and authentication have to pass through biological characteristic typing module, and in user's registration, it is necessary to the biology of typing user is initial
Feature simultaneously carries out biological initial characteristicses step；Crypto-operation module is used to be encrypted biological characteristic, add data
Close treatment and storage index, random number and biometric templates.This biological characteristic cipher authentication device can also include storage mould
Block, for the data storage for needing to carry out in calculating process.
Further, crypto-operation module is used to obtain random number by noise source in user's registration typing biological characteristic
R；And be used for, generation protection key key is changed by function with random number Rp, use protection key keypTo (R | BC) encryption,
Ciphertext E (R | BC) after encryption is used as biometric templates BCM；It is additionally operable to, carrying out hash computing to biological characteristic BC obtains
Hash (BC), and intercept certain one piece of data acquisition index index from Hash (BC)；Be additionally operable to, compare user authentication when and user
Biometric templates BCM during registration, and judge whether matching.Wherein, random number R, index index, biometric templates BCM
Correspondence storage is in a storage module.
The biological characteristic cipher authentication device that the present embodiment is provided, specifically a kind of cipher machine, the biological characteristic of use
Cipher authentication method is as follows：Including biological initial characteristicses typing step and biological characteristic authentication step.
Biological initial characteristicses typing step：First, biological characteristic typing module collection user biological information and according to
The biological information at family extracts initial biological characteristic BC0；Meanwhile, crypto-operation module by the noise source inside cipher machine obtain with
Machine number R0, and generate protection key key with random number R 0p0, during random number R 0 stored into memory module, random number R 0 is made a living
The component of thing feature templates, obtaining random number R 0 by noise source can ensure the randomness and uniqueness of random number R 0；Then,
Crypto-operation module uses protection key keyp0 pair (R0 | BC0) encryption, encrypts the ciphertext E (R0 | BC0) for being formed as biological special
Template BCM is levied, by biometric templates BCM storages to crypto-operation module；Crypto-operation module passes through initial biological characteristic
BC0 generation index index0, by index index0 storages to crypto-operation module；Index index and random number R 0, it is biological special
Levy template BCM and correspond to storage jointly in crypto-operation module, so in biological characteristic authentication, as long as being indexed
Index0, can just read random number R 0 corresponding with index index0 and biometric templates BCM.
Biological characteristic authentication step：First, the biological information of biological characteristic typing module collection user and according to using
The biological information of person extracts biological characteristic BC1；Then crypto-operation module generates index by initial biological characteristic BC1
Index1, corresponding random number R 1 and biometric templates BCM1 are read further according to index index1.If index index1 is without right
The random number and biometric templates answered, then authentication failure；Otherwise protection key key is generated with random number R 1p1, and make
Use keyp1 encryption (R1 | BC1), the ciphertext E (R1 | BC1) after encryption is used as the biometric templates BCM ' of biological characteristic authentication；
Crypto-operation module contrasts biometric templates BCM ' and stores the biometric templates BCM in memory module, if the two is matched,
Authentication success, cipher machine provides cryptographic service, if mismatching, authentication failure.If authentication fails, restart
Biological characteristic authentication step, until verification threshold is reached, after reaching verification threshold, cipher machine locking.Cryptographic service can be root
Business datum enciphering/deciphering, maintenance of personal biology characteristics for being carried out according to user's request etc..
Wherein, biological information can be fingerprint, iris, refer to vein or other can be used for the biological information of authentication, raw
Thing initial characteristicses typing step is consistent with the biological information in biological characteristic authentication step, for example, all choose fingerprint to carry out biology
Initial characteristicses typing step and biological characteristic authentication step.Protection key key is generated with random number R 0p0 mode is random with use
Number R1 generation protection keys keyp1 mode is consistent, so, when random number R 0 is equal with random number R 1, protects key keyp0
With protection key keyp1 is also equal.It is special with by first eozoon by way of initial biological characteristic BC0 generates index index0
The mode for levying BC1 generation indexes index1 is consistent, so, when eozoon feature BC0 is identical with biological characteristic BC1 originally, index
Index0 is also identical with index index1.
Further, random number R 0 changes generation protection key key by functionp0；Random number R 1 becomes metaplasia by function
Into protection key keyp1, function here can be a function, or a series of functions.
Further, Hash (BC0) is obtained by carrying out to initial biological characteristic BC0 hash computing, and from Hash (BC0)
Middle certain one piece of data of interception is used as index index0；Hash is obtained by carrying out hash computing to initial biological characteristic BC1
(BC1), and from Hash (BC1) intercept certain one piece of data and obtain the index index1.Similarly, index index0 and index
Index1 can also be obtained by the way of other are suitable.
Wherein, for same cipher machine, the random number R used during all of user's generation biological characteristic can be as needed
Determine whether identical, i.e., user used uses different random number Rs using same random number R or each user.It is right
In different cipher machines, random number R is due to being that noise source is produced thus certain different.Use the life using random number R as component
Thing feature templates carry out the authentication of user, conceal biological attribute data, it is ensured that the safety of biological attribute data and close
Using for ink recorder is safe, it is therefore prevented that the biology caused by the biometric templates of other cipher machines or system are attacked or are stolen
The leakage and loss of characteristic.
Term is explained：
Hash：That is hash algorithm, by the binary value that the binary map of random length is shorter regular length.
A kind of biological characteristic cipher authentication method and device that the present embodiment is provided, with advantages below：
(1) it is used as component with biological characteristic combining encryption generation biometric templates BCM by introducing random number R, it is ensured that
The uniqueness of biometric templates BCM, it is ensured that the Unlinkability of biological characteristic and biometric templates, i.e., cannot be from biological spy
Levy template direct access biological characteristic；
(2) random number R produced by the noise source in encryption apparatus generates biometric templates, the biology of same user
Feature templates are different in different encryption apparatus, it is ensured that independence and security between encryption apparatus.
Also, it should be noted that term " including ", "comprising" or its any other variant be intended to nonexcludability
Comprising so that process, method, commodity or equipment including a series of key elements not only include those key elements, but also wrapping
Include other key elements being not expressly set out, or also include for this process, method, commodity or equipment is intrinsic wants
Element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that wanted including described
Also there is other identical element in process, method, commodity or the equipment of element.
Some embodiments of the invention are the foregoing is only, is not intended to limit the invention.For art technology
For personnel, the present invention can have various modifications and variations.All any modifications made within spirit and principles of the present invention,
Equivalent, improvement etc., should be included within scope of the presently claimed invention.
Claims (10)
1. a kind of biological characteristic cipher authentication method, including biological initial characteristicses typing step and biological characteristic authentication step, its
It is characterised by,
The biological initial characteristicses typing step：
S100：Collection biological information simultaneously extracts initial biological characteristic BC0；
S110：Random number R 0 is obtained, and protection key key is generated with the random number R 0p0, store the random number R 0；
S120：Use the protection key keyp0 pair (R0 | BC0) encryption, encrypts the ciphertext E (R0 | BC0) for being formed as biological special
Template BCM is levied, the biometric templates BCM is stored；
S130：Index index0 is generated by the initial biological characteristic BC0, the index index0 is stored；
The biological characteristic authentication step：
S200：Collection biological information simultaneously extracts biological characteristic BC1；
S210：Index index1 is generated by the initial biological characteristic BC1；
S220：Corresponding random number R 1 and biometric templates BCM1 are read according to the index index1；
S230：Protection key key is generated with the random number R 1p1, and use keyp1 encryption (R1 | BC1), it is close that encryption is formed
Literary E (R1 | BC1) it is the biometric templates BCM ' of biological characteristic authentication；
S240：The biometric templates BCM of the biometric templates BCM ' and storage is contrasted, if the two is matched, identity
It is proved to be successful, if mismatching, authentication failure.
2. biological characteristic cipher authentication method according to claim 1, it is characterised in that
In step S240, if authentication fails, step S200 is re-started, until reaching verification threshold.
3. biological characteristic cipher authentication method according to claim 1, it is characterised in that
The random number R 0, the biometric templates BCM are that index correspondence is stored with the index index0.
4. biological characteristic cipher authentication method according to claim 1, it is characterised in that
In step S110, random number R 0 is obtained by noise source；
And/or the biological information is fingerprint, iris or refers to vein.
5. biological characteristic cipher authentication method according to claim 1, it is characterised in that
In step S110 the protection key key is generated with the random number R 0pIn 0 mode and step S230 with it is described at random
The number R1 generations protection key keyp1 mode is consistent；
And/or in step S130 by way of the initial biological characteristic BC0 generates the index index0 and step S210
In it is consistent by way of the initial biological characteristic BC1 generates index index1.
6. biological characteristic cipher authentication method according to claim 1, it is characterised in that
Random number R 0 described in step S110 changes the generation protection key key by functionp0；
And/or random number R 1 described in step S230 changes the generation protection key key by functionp1。
7. biological characteristic cipher authentication method according to claim 1, it is characterised in that
In step S130 Hash (BC0) is obtained by carrying out to the initial biological characteristic BC0 hash computing, and from the Hash
(BC0) certain one piece of data is intercepted in as the index index0；
And/or obtain Hash (BC1) by carrying out to the initial biological characteristic BC1 hash computing in step S210, and from institute
State interception certain one piece of data acquisition index index1 in Hash (BC1).
8. a kind of biological characteristic cipher authentication device, including：
Biological characteristic typing module, for carrying out the collection of biological information and extracting biological characteristic BC；
Crypto-operation module, for being encrypted to the biological characteristic, the encryption of data；Storage index index,
Biometric templates, random number.
9. biological characteristic cipher authentication device according to claim 8, it is characterised in that
The crypto-operation module is used to obtain random number R by noise source in user's registration typing biological characteristic；
The crypto-operation module is used to change generation protection key key by function with the random number Rp, use the protection
Key keypTo (R | BC) encryption, and ciphertext E after encryption (R | BC) as biometric templates BCM；
The crypto-operation module is used to carrying out biological characteristic BC hash computing obtaining Hash (BC), and from the Hash (BC)
Intercept certain one piece of data and obtain index index；
Biometric templates BCM when when the crypto-operation module being used to compare user authentication with user's registration, and judgement is
No matching.
10. biological characteristic cipher authentication device according to claim 9, it is characterised in that
The random number R, the biometric templates BCM are that index correspondence storage is transported in the password with the index index
Calculate module.
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Cited By (3)
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| CN107196765A (en) * | 2017-07-19 | 2017-09-22 | 武汉大学 | A kind of remote biometric characteristic identity authentication method for strengthening secret protection |
| CN108377187A (en) * | 2018-03-21 | 2018-08-07 | 山东超越数控电子股份有限公司 | A kind of block chain private key application method and device based on biological characteristic |
| WO2019114813A1 (en) * | 2017-12-14 | 2019-06-20 | 红石生物特征科技有限公司 | Biometric authentication system and method |
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