CN110084071A - Physical examination secure storage method of data based on block chain - Google Patents
Physical examination secure storage method of data based on block chain Download PDFInfo
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- CN110084071A CN110084071A CN201910333769.8A CN201910333769A CN110084071A CN 110084071 A CN110084071 A CN 110084071A CN 201910333769 A CN201910333769 A CN 201910333769A CN 110084071 A CN110084071 A CN 110084071A
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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
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
- G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
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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
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
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- 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
- G06F2221/2141—Access rights, e.g. capability lists, access control lists, access tables, access matrices
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Abstract
The invention discloses a kind of physical examination secure storage method of data based on block chain.A kind of physical examination secure storage method of data based on block chain of the present invention, comprising: the secure storage scheme of physical examination data uses block chain technology and cloud storage technology；Medical institutions, patient and the third-party institution are three kinds of major transaction main bodys of medical block chain；Data storage and access control is the major affairs in medical block chain.Beneficial effects of the present invention: storage, shared and use including secure storage scheme and safe Data sharing framework, for physical examination data.Using distributed recording and memory technology based on block chain, electronics physical examination data system establishing a structuring, can not forging, security performance with higher.
Description
Technical field
The present invention relates to data preservation fields, and in particular to a kind of physical examination secure storage method of data based on block chain.
Background technique
Current medical examination data are mainly managed by medical institutions, transmitting to important personal information and shared are had
Stringent limitation and regulation.Physical examination data are dispersed in each medical institutions, and the physical examination data standard of different medical mechanism is not united
One, cause each inter-agency medical information system interoperability lower.Therefore cause a universal phenomenon: people are in a hospital
Be can not directly using he previous hospital physical examination data, can only physical examination again.Furthermore it is possible to handle medical examination
The subject of data is limited.In addition to patient requests shift and check personal medical records, do not allow to occur outside medical institutions in principle
The transfer of medical examination data and shared.These all the exchange of medical examination data and share to become extremely difficult, sternly
Its validity is hindered again.
There are following technical problems for traditional technology:
Be with medical institutions at present guiding physical examination data management system under, not can guarantee the complete of patient's physical examination data
Property and reliability.The risk of physical examination loss of data or hacker attack is inevitable, these data are always faced with data peace
Entirely, the problems such as individual privacy is revealed, there is biggish security risks.Most of physical examination data are centrally stored in medical institutions
In, it is easy by full spectrum of threats, such as maliciously distort, hacker attack, natural calamity, leads to data leak and loss.2017 6
Month, the cosmetics research institute of Bandaid intersection has issued patient's name, address, medical insurance number and medical information, has caused
Serious medical examination problem of data safety.Increase with people to personal health regulatory requirement, each medical service organ are uncommon
It hopes the exchange by physical examination data and shares come collection of bodily health and fitness information.Such as the blue buttons connector that U.S. government is leading
Project, the portable medical application program of apple and Google Health.However these solutions meet Utopian body not yet
Examine the requirement of information system, such as safety, reliability and transparency.Therefore, it needs one kind to have personal physical examination data to divide
Dissipate the Managed Solution of property, mobility and invariance.Health and fitness information technology is widely regarded as improving health care productivity and peace
The pith of the solution of full property.Health and fitness information technology improves the accessibility to health and medical data, and makes to cure
It learns research and medical control is benefited.Currently, their repository is contracted out to cloud by many medical institutions.In order to give medical treatment clothes
Business provides more convenient and fast service and environment, it has been proposed that a variety of cloud service technologies and rwan management solution RWAN.However, in cloud service
Storage and when shared physical examination data in environment, safety and privacy concern are of increasing concern.In order to ensure patient medical data
Safety and privacy, the Data Storage Solution of proposition include a protection privacy intelligence IoT-based medical treatment big data
Storage system, based on the solution of non-standard oblique data sharing sensitive data, data sharing model based on cloud, mixing is solved
Scheme, a telescopic privacy-enabled framework and environment sensitive privacy-pre-serving scheme, use mist
Security model calculate equipment, and a kind of distributed architecture with the micro- polymerization of two-phase.However, in these solutions
It is most of dependent on the third party trusted completely.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of physical examination secure storage method of data based on block chain, for
Information Security existing for the electronics physical examination digital data recording system of the centrally stored formula of tradition is lower, slow, the shared difficulty of response is big
The problems such as, to promote the storage and shared safety of physical examination data, promote the efficiency of data sharing.
In order to solve the above-mentioned technical problems, the present invention provides a kind of physical examination data safety storage side based on block chain
Method, comprising:
The secure storage scheme of physical examination data uses block chain technology and cloud storage technology；Medical institutions, patient and third
Square mechanism is three kinds of major transaction main bodys of medical block chain；
Data storage and access control is the major affairs in medical block chain；All physical examination data are stored in block chain
On be optimal situation, but since cost, memory capacity etc. actually limit, the only index information and transaction record of physical examination data
It is recorded on block chain；Large-scale physical examination data should be encrypted and are stored in except block chain；These physical examination data are stored in chain
Under cloud storage in；Access control is determined that different business entities have different access control rights by permission；In Medical Treatment Area
In block chain, for the right to use of personal physical examination data completely by Patients' rights, patient can authorize the permission of subject access associated data；
Patient can also timely revocation, possess higher safety；
Medical block chain is responsible for generating creation block；It first verifies that the newly-generated block of network node, is then added to master
In chain, the persistence of Transaction Information is formed；Timestamp is used to ensure that block to follow the timing link in medical block chain；Block chain
In data be not hashed function and distort, authentication can be realized by public key encryption；The combination of these technologies ensure that
The safety of medical block chain；Medical block chain block structure is the structure based on Merkle tree；
When patient goes to a doctor to medical institutions, doctor can generate physical examination data or report for patient；When generation subject data
When, doctor generates the abstract and hash of physical examination data, and they are published to block chain after logging in using the private key of publisher；
Meanwhile using symmetric key encryption physical examination data, the encryption key of patient's public key encryption physical examination data is used；They two together
It is sent to patient there；After medical authorities data, then the signature of patient certifying organization is decrypted using the private key of oneself
Medical data encryption key obtains original physical examination data and signs, and then generates a new encryption key at cloud storage end
Store physical examination data and signature；The right to use of physical examination data is controlled by user oneself completely, and patient can pass through access control mechanisms
The authorization third-party institution accesses its part physical examination data, and can cancel its authorization at any time；The shared position being recorded in cloud storage,
The right to use and expiration date and third-party institution's decruption key are written into medical block chain, and setting access is controlled in cloud storage management
System strategy；
Personal physical examination data management safety:
Firstly, everyone has the digital archives comprising personal physical examination data；Storing and accessing for digital archives be
It is realized by block chain technology, everyone has the message reference control of oneself；Retrievable, safe electronic information can
To be more convenient, quickly be integrated into the daily diagnosis and treatment work of medical institutions；The standardization and digitlization of various records make medical treatment
Mechanism, patient and ISP being capable of shared informations；
Secondly, personal physical examination data management power is completely by user's control；When ISP whenever necessary, ISP
Access is issued to patient and collects the request of personal physical examination data；Individual can authorized service provider consult its part medical treatment note
Record, and the right of ISP can be withdrawn at any time.
A kind of computer equipment can be run on a memory and on a processor including memory, processor and storage
The step of computer program, the processor realizes any one the method when executing described program.
A kind of computer readable storage medium, is stored thereon with computer program, realization when which is executed by processor
The step of any one the method.
A kind of processor, the processor is for running program, wherein described program executes described in any item when running
Method.
Beneficial effects of the present invention:
Storage, shared and use including secure storage scheme and safe Data sharing framework, for physical examination data.Using being based on
The distributed recording and memory technology of block chain, electronics physical examination data system establishing a structuring, can not forging, tool
There is higher security performance.Dispersed structure block chain stores physical examination data in each participation data, safe collection and will storage
Data are permanently stored in the network node real-time update on Cloud Server, can reduce the loss of physical examination data set sensitive information in this way
Risk, and increase the safety and confidence level of physical examination data.Standard agreement of the medical block catenary system based on common recognition is shared
Resource uses reciprocity transmission method shared resource, such as physical examination information.Doctor will decide whether according to the wish of patient by physical examination
Information anonymity is shared to public research field.If patient agrees to share, a certain number of tokens will be obtained, doctor will be according to trouble
Every content standard matching in person's physical examination data, and it is added to the Sharing Center of this Private Network.
Detailed description of the invention
Fig. 1 is the structural representation of the medical block chain in the physical examination secure storage method of data the present invention is based on block chain
Figure.
Fig. 2 is the block structure of the medical block chain in the physical examination secure storage method of data the present invention is based on block chain.
Fig. 3 is the physical examination number based on block chain technology in the physical examination secure storage method of data the present invention is based on block chain
According to Data sharing framework.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, so that those skilled in the art can be with
It more fully understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
Block chain provides a up-and-coming new Distributed Architecture, for extending and supporting across a series of uses and benefit
The health and fitness information of beneficial relative is integrated.Block chain has the unique advantage of record and anti-distort in real time, can lead in medical examination
It is embodied in domain.The data captured on block chain can between lineup and tissue Real-Time Sharing.Each event or affairs
All having time is stabbed, and a part for becoming long-chain or permanently recording, and cannot be distorted later.On unlicensed block chain, own
Each side can check all records.On a loose block chain, privacy can by agree to where, found by whom
It trades and hides the identity of all each side to protect.Therefore, the different information that block chain holds the single owner are converted to
The entire history of assets.
Block chain technology records transaction just as a shared distributing ledger.Logout can be product by it
Or theme experience is recorded in a not modifiable log from the origin of event to current state.Block chain has dispersion
The characteristics of property, verifiability and invariance, this be in medical industry it is essential, especially in physical examination data management.
Block chain has been attracted extensive attention in the application and research of medical field；Many research institutions all over the world have been involved in promotion
The work of block chain solution.Healthy bank is the innovator of Digital Radio health field, is being tried to explore -- utilize area
The option of block chain, such as intelligent contract.Gem Health is the provider of enterprise's block chain solution, it and Philip block chain
Laboratory cooperation is come using block chain technology by creating the medical ecosystem for being connected to general data infrastructure
Solve the nursing centered on patient and the tradeoff between operating efficiency.Potential application of the block chain technology in terms of medical treatment is more
Kind multiplicity, the exponential increase of block chain technical application can make population health and medical records be benefited.
The secure storage scheme of physical examination data:
The secure storage scheme of physical examination data uses block chain technology and cloud storage technology.The structure of medical block chain is as schemed
Shown in 1.Medical institutions, patient and third-party institution's (such as medical information service platform, health insurance company) are medical blocks
Three kinds of major transaction main bodys of chain.Medical institutions are responsible for checking to patient UP, and generate the physical examination case history of patient, and patient can be with
Different medical institutions are gone to see the doctor.Table 1 shows the permission of three classes affairs main body.
Data storage and access control is the major affairs in medical block chain.All physical examination data are stored in block chain
On be optimal situation, but since cost, memory capacity etc. actually limit, the only index information and transaction record of physical examination data
It is recorded on block chain.Large-scale physical examination data should be encrypted and are stored in except block chain.In our scheme, these bodies
Inspection data are stored in the cloud storage under chain.Access control is determined that different business entities have different access controls by permission
Permission processed.In medical block chain, for the right to use of personal physical examination data completely by Patients' rights, patient can authorize subject access
The permission of related data.Patient can also timely revocation, possess higher safety.
Medical block chain is responsible for generating creation block.It first verifies that the newly-generated block of network node, is then added to master
In chain, the persistence of Transaction Information is formed.Timestamp is used to ensure that block to follow the timing link in medical block chain.Block chain
In data be not hashed function and distort, authentication can be realized by public key encryption.The combination of these technologies ensure that
The safety of medical block chain.Medical block chain block structure is the structure based on Merkle tree, and design is as shown in Figure 2.
When patient goes to a doctor to medical institutions, doctor can generate physical examination data or report for patient.When generation subject data
When, doctor generates the abstract and hash of physical examination data, and they are published to block chain after logging in using the private key of publisher.
Meanwhile using symmetric key encryption physical examination data, the encryption key of patient's public key encryption physical examination data is used.They two together
It is sent to patient there.After medical authorities data, then the signature of patient certifying organization is decrypted using the private key of oneself
Medical data encryption key obtains original physical examination data and signs, and then generates a new encryption key at cloud storage end
Store physical examination data and signature.The right to use of physical examination data is controlled by user oneself completely, and patient can pass through access control mechanisms
The authorization third-party institution accesses its part physical examination data, and can cancel its authorization at any time.The shared position being recorded in cloud storage,
The right to use and expiration date and third-party institution's decruption key are written into medical block chain, and setting access is controlled in cloud storage management
System strategy.
(3) physical examination data safety Data sharing framework
Traditionally, medical institutions save the physical examination record of patient.Physical examination data sharing is to realize that medical system is intelligent, mention
The important measure of high medical service quality.It can help patient become positive participant, improve service quality, be patient and
Doctor, which provides, preferably to suggest.Block chain technology helps the certification power of medical institutions, patient and ISP quickly, safe
Limit, to realize free data access and share.Based on block chain technology, personal physical examination data can be rapidly and accurately obtained, are
Patient provides preferably service.Therefore, we devise a personal physical examination data sharing and access based on block chain technology
Control service framework.Fig. 3 outlines the process of our service framework.
Personal physical examination data management safety
Firstly, everyone has the digital archives comprising personal physical examination data.Storing and accessing for digital archives be
It is realized by block chain technology, everyone has the message reference control of oneself.Retrievable, safe electronic information can
To be more convenient, quickly be integrated into the daily diagnosis and treatment work of medical institutions.The standardization and digitlization of various records make medical treatment
Mechanism, patient and ISP being capable of shared informations.
Secondly, personal physical examination data management power is completely by user's control.When ISP whenever necessary, ISP
Access is issued to patient and collects the request of personal physical examination data.Individual can authorized service provider consult its part medical treatment note
Record, and the right of ISP can be withdrawn at any time.
Personal physical examination data uses safe
Personal physical examination data are very valuable.There are many applications for these data；These data can be not only used for diagnosing, and
Better choice can be provided for doctor.For example, Chinese medical treatment person-time in 2017 reaches 7,000,000,000.Medical institutions are bigger, see a doctor
People it is more.Due to the shortage of information, do not know how that selection medical institutions see a doctor in Chinese people.Often selection is gone for they
Hospital greatest around receives treatment.Patient at the arrival into the hospital admis-sion, faces and registers, treats, the needs such as medicine is taken to fall into a long wait
Process has been a kind of common phenomenon.It is extremely important for guiding patient medical according to the medical institutions of the state of an illness to different stage
's.
Personal physical examination data-application based on block chain can provide patient medical in the case where not invasion of privacy
Information service.Currently, China there are many medical services platforms, patient is helped to reserve before going to medical institutions.Due to lacking body
Data sharing is examined, medical institutions can not effectively guide different patients medical to different medical institutions.However, being based on block
The personal physical examination data sharing of chain and access control can play a significant role in field of medical service.Such as if someone feels
Feel is out of shape, and wants to go to medical institutions and sees a doctor, he can authorize his physical examination data to a medical service organ, recommends preferably for him
Medical institutions, this can't generate leakage privacy safety problem.
(4) the important safety characteristic of medical block chain
Medical block chain is the system for establishing the one's own complete personal physical examination data of a patient, is suffered from the system
It is safe and reliable that physical examination data between person, medical institutions and the third-party institution, which are stored and shared,.The ideal of medical block chain
Characteristic includes patient's ownership, storage security, secret protection, anti-tamper and convenient interoperability.Medical block chain provides
A kind of distributed and dispersion mode carrys out storage and management physical examination data.This method has broken traditional Physical Examination Information System
Information island enables the patient to the physical examination data for being absorbed in oneself for being dispersed in different medical mechanism.Patient fully controls his
Personal physical examination data.Other people are before the related physical examination data of access patient, it is necessary to file a request and obtain license appropriate.
Patient can also cancel their authorization at any time.
Data storage safety is a key property of medical block chain.It is generated from public information, data and data connects
Receive the secure storage that three aspects have ensured physical examination data.By the storage address of physical examination data, hashed value, physical examination data permission etc.
Public information is recorded on block.These public informations are visible, but cannot be tampered.Medical institutions are handled using hash algorithm
The data of generation, sign to cryptographic Hash, and use the public key of the record of patient and encrypted signature patient.The storage of these data
In the cloud storage under chain.Patient obtains the Hash and signature of medical institutions' record using private key decryption ciphertext, then to new note
Record is encrypted and is added in existing record.These mechanism ensure that the authenticity of physical examination data source, ensure that physical examination data
The safety of transimission and storage.Patient's anonymity participates in the transaction on block chain, to protect privacy.User can be raw for each affairs
At different public key and private key pair.Physical examination record is encrypted and stored in the cloud storage under chain.There is no the encryption key of patient,
The cleartext information of physical examination data can not just be decrypted.Therefore, from medical chain public information obtain physical examination data be it is impossible, from
And protect the privacy of patient.For control in patient's hand, patient can be by certain data grants to entity, and can cancel at any time
Its access authority.
Physical examination data are sequentially arranged on block chain.Each piece includes previous piece of hash.Once data quilt
Block chain is written, they cannot be tampered.The Hash of physical examination data is stored in medical block chain.To any of initial data
Change all will lead to the change of its hashed value, this, which will ensure that, can not modify physical examination data.Medical block chain will pellucidly provide pass
In when, where and why using the content of medical information.All medical records accessed on medical block chain are
By personal management, this can prevent the malicious access source of physical examination information.
Encryption (ABE) and key polymerization cryptographic system (KAC) based on attribute are that the typical case of data sharing in cloud storage is close
Code.Encryption based on attribute is the public key encryption that a kind of user key and ciphertext depend on attribute, and cloud security alliance (CSA) is recommended
As one of possible access control Encryption Tool in big data application.In KAC, public key is not used only in data owner
Message is encrypted, also encrypts message using the ciphertext identifier which class is expression ciphertext belong to.All ciphertexts are divided into different
Class, key owner can be used master key and extract aggregation key in different classes.Compared with ABE and KAC, medical block chain
System has many advantages, such as anti-tamper, secret protection and secure storage.Electronic medical record system based on cloud depends on believable third
Side, and medical block catenary system does not need then.In addition, patient has complete control to physical examination data, and electronics based on cloud is sick
The system of going through cannot allow patient to fully control.Table 2 gives ABE, KAC compared with being suggested plans.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention
It encloses without being limited thereto.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in the present invention
Protection scope within.Protection scope of the present invention is subject to claims.
Claims (4)
1. a kind of physical examination secure storage method of data based on block chain characterized by comprising
The secure storage scheme of physical examination data uses block chain technology and cloud storage technology；Medical institutions, patient and third party's machine
Structure is three kinds of major transaction main bodys of medical block chain.
Data storage and access control is the major affairs in medical block chain；All physical examination data, which are stored on block chain, is
Optimal situation, but since cost, memory capacity etc. actually limit, the index information and transaction record of only physical examination data are remembered
Record is on block chain；Large-scale physical examination data should be encrypted and are stored in except block chain；These physical examination data are stored under chain
In cloud storage；Access control is determined that different business entities have different access control rights by permission；In medical block chain
In, for the right to use of personal physical examination data completely by Patients' rights, patient can authorize the permission of subject access associated data；Patient
Can also timely revocation, possess higher safety；
Medical block chain is responsible for generating creation block；It first verifies that the newly-generated block of network node, is then added in main chain,
Form the persistence of Transaction Information；Timestamp is used to ensure that block to follow the timing link in medical block chain；In block chain
Data are not hashed function and distort, and authentication can be realized by public key encryption；The combination of these technologies ensure that medical
The safety of block chain；Medical block chain block structure is the structure based on Merkle tree；
When patient goes to a doctor to medical institutions, doctor can generate physical examination data or report for patient；When generating subject data, doctor
The abstract and hash of physical examination data are generated, and they are published to block chain after logging in using the private key of publisher；Meanwhile
Using symmetric key encryption physical examination data, the encryption key of patient's public key encryption physical examination data is used；They two given together
To patient there；After medical authorities data, then the signature of patient certifying organization decrypts medical treatment using the private key of oneself
Data encryption key obtains original physical examination data and signs, and then generates a new encryption key and stores at cloud storage end
Physical examination data and signature；The right to use of physical examination data is controlled by user oneself completely, and patient can pass through access control mechanisms authorization
The third-party institution accesses its part physical examination data, and can cancel its authorization at any time；The shared position being recorded in cloud storage uses
Power and expiration date and third-party institution's decruption key are written into medical block chain, and access control plan will be arranged in cloud storage management
Slightly；
Personal physical examination data management safety:
Firstly, everyone has the digital archives comprising personal physical examination data；Storing and accessing for digital archives is to pass through
What block chain technology was realized, everyone has the message reference control of oneself；Retrievable, safe electronic information can be more
It is quickly and easily integrated into the daily diagnosis and treatment work of medical institutions；The standardization and digitlization of various records make medical institutions,
Patient and ISP being capable of shared informations；
Secondly, personal physical examination data management power is completely by user's control；When ISP whenever necessary, ISP is to trouble
Person issues access and collects the request of personal physical examination data；Individual can authorized service provider consult its part medical records, and
The right of ISP can be withdrawn at any time.
2. a kind of computer equipment including memory, processor and stores the meter that can be run on a memory and on a processor
Calculation machine program, which is characterized in that the step of processor realizes claim 1 the method when executing described program.
3. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is held by processor
The step of claim 1 the method is realized when row.
4. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run
Benefit require 1 described in method.
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| CN110737905A (en) * | 2019-09-19 | 2020-01-31 | 深圳市先河系统技术有限公司 | Data authorization method, data authorization device and computer storage medium |
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| CN110889120A (en) * | 2019-10-10 | 2020-03-17 | 深圳创链数据科技有限公司 | System and method for big health data based on block chain technology |
| CN110929293A (en) * | 2019-12-11 | 2020-03-27 | 佛山科学技术学院 | Beauty data storage system based on block chain |
| CN112380543A (en) * | 2020-10-23 | 2021-02-19 | 重庆大学 | Electronic medical data privacy protection and safety sharing system based on block chain |
| CN113076554A (en) * | 2021-03-12 | 2021-07-06 | 广西东信易联科技有限公司 | Physical examination data safe storage method based on block chain |
| CN113626793A (en) * | 2021-07-15 | 2021-11-09 | 中国信息通信研究院 | Health authentication method, system, device, equipment and readable storage medium |
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