CN110414203A - A kind of internet medical treatment identity identifying method based on block chain technology - Google Patents

A kind of internet medical treatment identity identifying method based on block chain technology Download PDF

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Publication number
CN110414203A
CN110414203A CN201910683824.6A CN201910683824A CN110414203A CN 110414203 A CN110414203 A CN 110414203A CN 201910683824 A CN201910683824 A CN 201910683824A CN 110414203 A CN110414203 A CN 110414203A
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chain
privately owned
block chain
data
biological characteristic
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CN110414203B (en
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翟运开
赵杰
陈昊天
崔莉亚
石金铭
宋晓琴
孙东旭
陈保站
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Zhengzhou University
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Zhengzhou University
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • 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
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H10/00—ICT specially adapted for the handling or processing of patient-related medical or healthcare data
    • G16H10/60—ICT specially adapted for the handling or processing of patient-related medical or healthcare data for patient-specific data, e.g. for electronic patient records
    • 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
    • G06F2221/2107—File encryption

Abstract

The invention discloses a kind of internet medical treatment identity identifying methods based on block chain technology, belong to block chain technical field, establish block chain framework, block chain framework includes service layer, data storage layer and data generating layer, alliance's chain is constructed in service layer, privately owned block chain is constructed in data storage layer, layer building hospital server and face identification device are generated in data, solves the technical issues of data safety storage and authentication, application block chain technology of the present invention solves the safety problem of the data storage and access in identity authorization system, storage for the biological characteristic of user provides safe distributed storage mechanism, and identity information data can be shared in chain hospital, in the case where guaranteeing data security, realize the shared of data.

Description

A kind of internet medical treatment identity identifying method based on block chain technology
Technical field
The invention belongs to block chain technical fields more particularly to a kind of internet medical treatment identity based on block chain technology to recognize Card method.
Background technique
Nowadays, medical industry is from traditional medical mode to intelligent medical treatment Model Transformation, by internet medical department The identification of medical care personnel identity can avoid occurring guaranteeing the safety and user information safety of system for the appearance of situation is examined in system, But the out tape that growing network security problem is intelligent medical treatment carrys out hidden danger.
The digital identity of user and the reunification of physical identity gradually highlight, biological feature encryption theory, method and skill Art is come into being, and the deficiency of biological characteristic authentication is compensated for, and by artificial intelligence technology, fingerprint and recognition of face level are dashed forward It is broken, form large-scale application.
Summary of the invention
The more classification methods of skin disease clinical image based on transfer learning that the object of the present invention is to provide a kind of, solve number The technical issues of according to secure storage and authentication.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of internet medical treatment identity identifying method based on block chain technology, includes the following steps:
Step 1: establishing block chain framework, block chain framework includes service layer, data storage layer and data generating layer, is being taken It is engaged in constructing alliance's chain in layer, privately owned block chain is constructed in data storage layer, generate layer building hospital server and people in data Face identification device；
Each hospital disposes a hospital server, face identification device and a privately owned block chain；
All privately owned block chains pass through internet and communicate with alliance chain；
Step 2: in data generating layer, hospital server acquires the fingerprint image of face, hospital by face identification device Server pre-processes collected fingerprint image, reduces the noise of fingerprint image；
Step 3: hospital server carries out feature extraction by fuzzy extractive technique to pretreated fingerprint image, obtains Biological characteristic establishes the property data base for storing biological characteristic in privately owned block chain；
Step 4: privately owned block chain is by privately owned chain build, privately owned chain payload, privately owned chain signature and privately owned chain timestamp Composition；Privately owned chain build includes block ID, block size and previous piece of hashed value；Privately owned chain payload includes that biological characteristic is raw Grow up to be a useful person or ID, the false identity of the biological characteristic owner, encryption biological characteristic hash and keyword；
Position of the informative abstract and specific data of privately owned block chain storage remote doctor in cloud storage；
The newly generated block of hospital server is added on main chain after verifying, the persistence of shape paired data；
Privately owned block chain guarantees that each block is linked according to timing by timestamp, guarantees data by hash function not It is tampered, authentication is realized by public key encryption；
Step 5: alliance's chain includes community's build, community's payload, community's signature and community's timestamp group At；The structure of community's build is similar to the structure of privately owned chain build, also includes dissipating comprising block ID, block size and previous piece Train value；
Community's payload includes module generator ID and Security Index, and module generator ID is the ID of hospital server, doctor Institute's server creates a block at regular intervals, and it is special to collect the biology during this period of time generated for hospital server during this period Sign；
Described piece only stores Security Index in the payload of alliance's chain, and Security Index includes several affairs, each The Security Index of one user of transaction journal, the affairs include block ID, owner's puppet ID and keyword；
Step 6: owner of the hospital as biological characteristic, one new biological characteristic of every acquisition produce a note Record carries out cryptographic Hash calculating to the record, and signs to cryptographic Hash meter, and the record and signature of user are used to biological characteristic And the public key of user people encrypts, and is stored in the cloud storage under privately owned block chain, and the cryptographic Hash of the record and Privately owned block chain is written in position；
Privately owned block chain sends alliance's chain for biological characteristic and is used to share；
Step 7: after user receives biological characteristic by alliance's chain, decrypting ciphertext with the private key of oneself, obtain original record Cryptographic Hash and signature, verify the integrality and authenticity of record, and original record is encrypted using symmetric key, and will Its biological characteristic memory space for collecting oneself.
Preferably, the face identification device is camera.
It preferably, include the light of facial image to the pretreatment that collected fingerprint image carries out when executing step 2 Compensation, greyscale transformation, histogram equalization, normalization, geometric correction, filtering and sharpening.
Preferably, all biological characteristic relevant informations are all with the storage of ciphertext format.
A kind of more classification methods of skin disease clinical image based on transfer learning of the present invention, solve data safety Storage and the technical issues of authentication, application block chain technology of the present invention come solve the storage of the data in identity authorization system with The safety problem of access provides safe distributed storage mechanism for the storage of the biological characteristic of user, and can close Make hospital and share identity information data, in the case where guaranteeing data security, realizes the shared of data.
Detailed description of the invention
Fig. 1 is block chain configuration diagram of the invention；
Fig. 2 is the flow chart of fingerprint image processing of the invention；
Fig. 3 is the flow chart of fuzzy extractive technique of the invention；
Fig. 4 is the composition figure of privately owned block chain of the invention；
Fig. 5 is the composition figure of alliance's chain of the invention.
Specific embodiment
A kind of internet medical treatment identity identifying method based on block chain technology as Figure 1-Figure 5, including walk as follows It is rapid:
Step 1: establishing block chain framework, block chain framework includes service layer, data storage layer and data generating layer, is being taken It is engaged in constructing alliance's chain in layer, privately owned block chain is constructed in data storage layer, generate layer building hospital server and people in data Face identification device；
Each hospital disposes a hospital server, face identification device and a privately owned block chain；
All privately owned block chains pass through internet and communicate with alliance chain；
Step 2: in data generating layer, hospital server acquires the fingerprint image of face, hospital by face identification device Server pre-processes collected fingerprint image, reduces the noise of fingerprint image；
Step 3: hospital server carries out feature extraction by fuzzy extractive technique to pretreated fingerprint image, obtains Biological characteristic establishes the property data base for storing biological characteristic in privately owned block chain；
The public information of biological characteristic includes biological characteristic metadata, the storage location of scrambled record, cryptographic Hash, access right Limit etc., these information are stored on privately owned block chain, and are sent to alliance's chain by privately owned block chain, public visible to usurp Change.
Fuzzy extractive technique is made of generating process and restructuring procedure the two processes as shown in Figure 3, in generating process, A biological factor B is inputted, after program is handled, a random string σ and a random additional character string can be obtained ɡ, i.e. (σ, ɡ)=Gen (B)；Random string σ is secrecy character string, and random additional character string ɡ is open character string.
In restructuring procedure, inputting a biological factor B ' (close with B) and its corresponding additional character string can restore Character string ɡ before, i.e. σ=Rep (B ', ɡ).Wherein, B ' is close with B should meet dis (B, B ')≤τ wherein, and dis () is One distance function, dis (B, B ') indicate the number of character string B and B ' different location；τ is error threshold.
Step 4: privately owned block chain is by privately owned chain build, privately owned chain payload, privately owned chain signature and privately owned chain timestamp Composition；Privately owned chain build includes block ID, block size and previous piece of hashed value；Privately owned chain payload includes that biological characteristic is raw Grow up to be a useful person or ID, the false identity of the biological characteristic owner, encryption biological characteristic hash and keyword；
Position of the informative abstract and specific data of privately owned block chain storage remote doctor in cloud storage；
The newly generated block of hospital server is added on main chain after verifying, the persistence of shape paired data；
Privately owned block chain guarantees that each block is linked according to timing by timestamp, guarantees data by hash function not It is tampered, authentication is realized by public key encryption；
Step 5: alliance's chain includes community's build, community's payload, community's signature and community's timestamp group At；The structure of community's build is similar to the structure of privately owned chain build, also includes dissipating comprising block ID, block size and previous piece Train value；
Community's payload includes module generator ID and Security Index, and module generator ID is the ID of hospital server, doctor Institute's server creates a block at regular intervals, and it is special to collect the biology during this period of time generated for hospital server during this period Sign；
Described piece only stores Security Index in the payload of alliance's chain, and Security Index includes several affairs, each The Security Index of one user of transaction journal, the affairs include block ID, owner's puppet ID and keyword；
Such as: the affairs in Security Index include Tx1, Tx2...Txn, and Tx2 includes block ID, owner's puppet ID and keyword.
Block only stores Security Index in the payload of association's block chain, without retaining raw biometric
Step 6: owner of the hospital as biological characteristic, one new biological characteristic of every acquisition produce a note Record carries out cryptographic Hash calculating to the record, and signs to cryptographic Hash meter, and the record and signature of user are used to biological characteristic And the public key of user people encrypts, and is stored in the cloud storage under privately owned block chain, and the cryptographic Hash of the record and Privately owned block chain is written in position；Ensure confidentiality, the authenticity of data source；The distributed storage feature of cloud storage guarantees number According to the safety of storage.
The metadata of biological characteristic, cloud storage structure of data encrypting storing under chain itself are only saved on privately owned chain In, the location information of ciphertext is only preserved in privately owned chain, the encryption key of user is not can not to decrypt physicianship information Cleartext information, so any truthful data in relation to biological characteristic can not be obtained from the public information of privately owned chain.
Privately owned block chain sends alliance's chain for biological characteristic and is used to share；
Step 7: after user receives biological characteristic by alliance's chain, decrypting ciphertext with the private key of oneself, obtain original record Cryptographic Hash and signature, verify the integrality and authenticity of record, and original record is encrypted using symmetric key, and will Its biological characteristic memory space for collecting oneself.
Only authorized user can just obtain decruption key, check the matching recorded truly and then carry out identity information.
Preferably, the face identification device is camera.
It preferably, include the light of facial image to the pretreatment that collected fingerprint image carries out when executing step 2 Compensation, greyscale transformation, histogram equalization, normalization, geometric correction, filtering and sharpening.
Preferably, all biological characteristic relevant informations are all with the storage of ciphertext format, that is, the block storing data owner's Puppet mark, puppet mark are derived from true identity.
Since doctor needs to different hospitals through row remote medical consultation with specialists, the identity information of doctor needs that there are obstructed doctors Institute, the present invention construct two kinds of block chains: the privately owned block chain of each hospital in the intercommunicating system in order to realize chain hospital information With alliance's chain of chain hospital, the identity information of doctor is stored in the privately owned block chain of corresponding hospital, fast with transactions velocity, Good confidentiality, at low cost, the advantages that having a safety feature.
In addition, the keyword that can search in its privately owned block chain is sent to alliance's chain, in this way, doctor by hospital Identity information storage there is distributivity and invariance, and they can search for.
A kind of more classification methods of skin disease clinical image based on transfer learning of the present invention, solve data safety Storage and the technical issues of authentication, application block chain technology of the present invention come solve the storage of the data in identity authorization system with The safety problem of access provides safe distributed storage mechanism for the storage of the biological characteristic of user, and can close Make hospital and share identity information data, in the case where guaranteeing data security, realizes the shared of data.

Claims (4)

1. a kind of internet medical treatment identity identifying method based on block chain technology, characterized by the following steps:
Step 1: establishing block chain framework, block chain framework includes service layer, data storage layer and data generating layer, in service layer Middle building alliance chain, constructs privately owned block chain in data storage layer, generates layer building hospital server in data and face is known Other device；
Each hospital disposes a hospital server, face identification device and a privately owned block chain；
All privately owned block chains pass through internet and communicate with alliance chain；
Step 2: in data generating layer, hospital server acquires the fingerprint image of face, hospital services by face identification device Device pre-processes collected fingerprint image, reduces the noise of fingerprint image；
Step 3: hospital server carries out feature extraction by fuzzy extractive technique to pretreated fingerprint image, obtains biology Feature establishes the property data base for storing biological characteristic in privately owned block chain；
Step 4: privately owned block chain is made of privately owned chain build, privately owned chain payload, privately owned chain signature and privately owned chain timestamp； Privately owned chain build includes block ID, block size and previous piece of hashed value；Privately owned chain payload includes biological characteristic generator Or ID, the false identity of the biological characteristic owner, the biological characteristic hash of encryption and keyword；
Position of the informative abstract and specific data of privately owned block chain storage remote doctor in cloud storage；
The newly generated block of hospital server is added on main chain after verifying, the persistence of shape paired data；
Privately owned block chain guarantees that each block is linked according to timing by timestamp, guarantees that data are not usurped by hash function Change, authentication is realized by public key encryption；
Step 5: alliance's chain includes community's build, community's payload, community's signature and community's timestamp composition；Altogether The structure of androgynous build is similar to the structure of privately owned chain build, also includes comprising block ID, block size and previous piece of hashed value；
Community's payload includes module generator ID and Security Index, and module generator ID is the ID of hospital server, gown Business device creates a block at regular intervals, and hospital server collects the biological characteristic during this period of time generated during this period；
Described piece only stores Security Index in the payload of alliance's chain, and Security Index includes several affairs, each affairs The Security Index of a user is recorded, the affairs include block ID, owner's puppet ID and keyword；
Step 6: owner of the hospital as biological characteristic, one new biological characteristic of every acquisition produce a record, right The record carries out cryptographic Hash calculating, and signs to cryptographic Hash meter, to biological characteristic using the record and signature of user and The public key of user people encrypts, and is stored in cryptographic Hash and position in the cloud storage under privately owned block chain, and the record Privately owned block chain is written；
Privately owned block chain sends alliance's chain for biological characteristic and is used to share；
Step 7: after user receives biological characteristic by alliance's chain, decrypting ciphertext with the private key of oneself, obtain the Kazakhstan of original record Uncommon value and signature verify the integrality and authenticity of record, and original record are encrypted using symmetric key, and is returned Collect the biological characteristic memory space of oneself.
2. a kind of internet medical treatment identity identifying method based on block chain technology as described in claim 1, it is characterised in that: The face identification device is camera.
3. a kind of internet medical treatment identity identifying method based on block chain technology as described in claim 1, it is characterised in that: When executing step 2, to the pretreatment that collected fingerprint image carries out include the light compensation of facial image, greyscale transformation, Histogram equalization, normalization, geometric correction, filtering and sharpening.
4. a kind of internet medical treatment identity identifying method based on block chain technology as described in claim 1, it is characterised in that: All biological characteristic relevant informations are all with the storage of ciphertext format.
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CN111143889B (en) * 2019-12-26 2023-05-26 腾讯科技（深圳）有限公司 Block chain-based stimulant detection information management method, device and equipment
CN111143889A (en) * 2019-12-26 2020-05-12 腾讯科技（深圳）有限公司 Stimulant detection information management method, device and equipment based on block chain
CN111222126A (en) * 2019-12-27 2020-06-02 陈强 Medical identity authentication system based on block chain technology
CN111709048A (en) * 2020-05-15 2020-09-25 山西警察学院 Data security sharing method based on private chain
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