CN111488619A - Health data privacy protection and sharing system based on block chain - Google Patents
Health data privacy protection and sharing system based on block chain Download PDFInfo
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- CN111488619A CN111488619A CN202010301548.5A CN202010301548A CN111488619A CN 111488619 A CN111488619 A CN 111488619A CN 202010301548 A CN202010301548 A CN 202010301548A CN 111488619 A CN111488619 A CN 111488619A
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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
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/40—User authentication by quorum, i.e. whereby two or more security principals are required
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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
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
- G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
Abstract
The invention discloses a health data privacy protection and sharing system based on a block chain. The data records produced by each user are stored on the chain, and the trust of doctors and patients and all related medical institutions and the sharing and use of various health data are solved through intelligent contracts, so that a decentralized medical health ecology is formed. The health data information can be shared by users on the premise of ensuring privacy and safety through a block chain technical means, and sharing is achieved without disclosure, so that the problem of data island in the medical industry is solved. Data produced by all stakeholders in the medical industry are authenticated by the system and desensitized to the medical data of the users, so that the privacy and the safety of the users are ensured.
Description
Technical Field
The invention relates to a data privacy protection and sharing system, in particular to a health data privacy protection and sharing system based on a block chain, and belongs to the technical field of medical health data systems.
Background
For the current medical health data system, the medical data islanded, and the standard system is lacked: the patient data and the medical information are utilized dispersedly, and even if the medical data are shared, the patient data and the medical information cannot be fused and effectively utilized; medical data security is difficult to guarantee: medical data are leaked in various large-scale events and are frequently sold, so that serious consequences are brought to privacy protection and safety of patients; personal health data authentication problem: at present, personal health data of residents are scattered in various medical institutions, the medical data are not entitled by the residents, and ownership and income rights of the residents on the health data are not fully reflected; and the medical data volume is large, the storage cost is high, and the safety and reliability are poor.
Disclosure of Invention
The present invention is directed to solving the above problems and providing a block chain-based health data privacy protection and sharing system.
The invention realizes the purpose through the following technical scheme: a blockchain-based health data privacy protection and sharing system, comprising:
user data generation: the user logs in the system through intelligent hardware, various platform systems and various DAPP, and records the data generated by each user;
data storage: caching user data into respective databases, and then carrying out data desensitization, encryption and layering by a local node;
and (3) node checking: the local node is responsible for verifying data encryption and decryption and data desensitization layering, and the trusted node is responsible for data packaging and verification;
identity management: providing secure key management and signature functions by establishing a network-wide universal ID in a manner that a mapping is established and a digital identity is created with the aid of identity information unique to the user, and establishing an association with a general account of the user via an identity management pool;
and (3) identity authorization: the user authorizes through the form of private key signature.
As a still further scheme of the invention: the user in the user data production includes healthy crowd, patient, doctor and third party mechanism, the data of healthy crowd and patient record are individual health data, the data of doctor record are for seeing a doctor patient's diagnosis record data, third party mechanism includes medicine enterprise and insurer, the medicine enterprise submits the data message such as medicine and service that self will sell at the node, the insurer submits the service data information that self will sell at the node.
As a still further scheme of the invention: before data desensitization layering is carried out on data storage, all sensitive information such as user identities and the like is extracted, sensitive data are packaged, encrypted and stored into an identity management pool, and the identity management pool ensures legal writing of user identity data and interconnection and intercommunication and data association establishment among different user account systems through trusted nodes randomly selected by a system.
As a still further scheme of the invention: desensitization data stored in the data storage are distributed to different servers through a safe multi-party computing cryptographic technology, and only the nodes can jointly compute the authorization function of the data at the moment.
As a still further scheme of the invention: the data encryption of the data store helps the user to create a unique digital identity and corresponding public and private key pairs based on the user's unique identity information.
As a still further scheme of the invention: and the third-party institutions such as the medicine enterprises, the insurance businessmen and the like carry out real-time bonus sharing for user data payment according to the data contribution ratio of each party by means of intelligent contracts.
The invention has the beneficial effects that: the health data privacy protection and sharing system based on the block chain is reasonable in design, and a medical health data system in the global scope is constructed through the block chain and a distributed storage technology based on a decentralized intelligent contract platform of the block chain. The system can store data records produced by each user on a chain, and solves the trust of doctors and patients and all related medical institutions and the shared use of various health data through intelligent contracts, thereby forming decentralized medical health ecology. The health data information can be shared by users on the premise of ensuring privacy and safety through a block chain technical means, and sharing is achieved without disclosure, so that the problem of data island in the medical industry is solved. Data produced by all stakeholders in the medical industry are authenticated by means of a health data privacy protection and sharing system based on a block chain, and desensitization processing is carried out on medical data of a user so as to ensure privacy security of the user. Meanwhile, the system helps users to keep track of self health data assets, links with medical institutions, drug enterprises and insurance merchants with requirements, and can enjoy high-quality and accurate services without harassment while acquiring due data benefits.
Drawings
FIG. 1 is a functional architecture diagram of the present invention;
FIG. 2 is a schematic flow chart of the system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a health data privacy protection and sharing system based on block chains includes:
user data generation: the user logs in the system through intelligent hardware, various platform systems and various DAPP, and records the data generated by each user;
data storage: caching user data into respective databases, and then carrying out data desensitization, encryption and layering by a local node;
and (3) node checking: the local node is responsible for verifying data encryption and decryption and data desensitization layering, and the trusted node is responsible for data packaging and verification;
identity management: providing secure key management and signature functions by establishing a network-wide universal ID in a manner that a mapping is established and a digital identity is created with the aid of identity information unique to the user, and establishing an association with a general account of the user via an identity management pool;
and (3) identity authorization: the user authorizes through the form of private key signature.
Further, in the embodiment of the present invention, the user in the user data generation includes healthy people, patients, doctors, and third-party institutions, the data recorded by the healthy people and the patients is personal health data, the data recorded by the doctors is diagnostic record data of patients for medical treatment, the third-party institutions include medicine enterprises and insurers, the medicine enterprises submit data information of medicines and services to be sold at the node ends, and the insurers submit data information of services to be sold at the node ends.
Furthermore, in the embodiment of the present invention, before the data storage desensitizes and stratifies the data, all the sensitive information such as the user identity is extracted, the sensitive data is packed and encrypted and stored in the identity management pool, and the identity management pool ensures the legal writing of the user identity data, the interconnection and intercommunication among different user account systems, and the establishment of data association by the trusted node randomly selected by the system.
Further, in the embodiment of the present invention, the desensitization data of the data storage is distributed to different servers through a secure multi-party computing cryptographic technique, and only the nodes can jointly compute the authorization function of the data at this time.
Further, in the embodiment of the present invention, the data encryption of the data storage helps the user to create a unique digital identity and a corresponding public-private key pair according to the unique identity information of the user.
Further, in the embodiment of the invention, the third-party institutions such as the medicine enterprises and the insurance merchants carry out real-time bonus sharing on the data contribution ratio of each party by means of the intelligent contracts so as to pay for the user data.
The working principle is as follows: when the health data privacy protection and sharing system based on the block chain is used, user data collected by different organizations are firstly temporarily cached in a background database of the system, the system is helped to create a unique digital identity and a corresponding public-private key pair according to the unique identity information of the user, then a local node firstly extracts all user identity information according to the rule of data desensitization layering, sensitive data are packaged and encrypted and stored in an identity management pool, desensitization data are distributed to different servers through a safe multi-party computing cryptography, no machine can extract basic information at the moment, but the nodes can still jointly compute the authorization function of the data, and the identity management pool ensures the legal writing of the user identity data and the interconnection and intercommunication and data association establishment among different user account systems by a credible node randomly selected by the system, and comprises identity management, data storage, and data management, wherein the identity management pool comprises a plurality of nodes, data cleansing and data contribution proof, etc. Therefore, as long as organizations such as medicine enterprises, insurance merchants and the like pay for user data, the intelligent contract can be used for real-time bonus sharing according to the data contribution ratio of each party.
Examples of applications are:
the medicine enterprises submit the medicines and services to be sold at the node end and send analysis requests to the system. The health data privacy protection and sharing system based on the block chain extracts possible pathological features of corresponding audiences after receiving a request, sends an authorization request according to a target user group (making preliminary judgment according to a pathological feature pool in the system), allows users to agree and triggers a red-separating intelligent contract for a medicine enterprise, compares the pathological features of the target users with the pathological features (desensitized) in the authorization group, and feeds back comparison results and similarity to the medicine enterprise. After the medicine enterprise is consulted, the screening condition with the similarity reaching a certain percentage amount can be selected as a threshold to push customized service to the target user.
The insurance provider submits the self-sold service at the node, sends an authorization request to a user group through a 'health data privacy protection and sharing system based on a block chain', the user agrees and the insurance provider triggers a red-separating intelligent contract, the system evaluates the probability of certain disease risk in the authorization group, and feeds back the related result to the insurance provider. After consulting, the insurer can intelligently price according to the probability that a user group suffers from a certain disease, and push different customized services to the user.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A health data privacy protection and sharing system based on a blockchain is characterized in that: the method comprises the following steps:
user data generation: the user logs in the system through intelligent hardware, various platform systems and various DAPP, and records the data generated by each user;
data storage: caching user data into respective databases, and then carrying out data desensitization, encryption and layering by a local node;
and (3) node checking: the local node is responsible for verifying data encryption and decryption and data desensitization layering, and the trusted node is responsible for data packaging and verification;
identity management: providing secure key management and signature functions by establishing a network-wide universal ID in a manner that a mapping is established and a digital identity is created with the aid of identity information unique to the user, and establishing an association with a general account of the user via an identity management pool;
and (3) identity authorization: the user authorizes through the form of private key signature.
2. The block chain based health data privacy protection and sharing system of claim 1, wherein: the user in the user data production includes healthy crowd, patient, doctor and third party mechanism, the data of healthy crowd and patient record are individual health data, the data of doctor record are for seeing a doctor patient's diagnosis record data, third party mechanism includes medicine enterprise and insurer, the medicine enterprise submits the data message such as medicine and service that self will sell at the node, the insurer submits the service data information that self will sell at the node.
3. The block chain based health data privacy protection and sharing system of claim 1, wherein: before data desensitization layering is carried out on data storage, all sensitive information such as user identities and the like is extracted, sensitive data are packaged, encrypted and stored into an identity management pool, and the identity management pool ensures legal writing of user identity data and interconnection and intercommunication and data association establishment among different user account systems through trusted nodes randomly selected by a system.
4. The block chain based health data privacy protection and sharing system of claim 1, wherein: desensitization data stored in the data storage are distributed to different servers through a safe multi-party computing cryptographic technology, and only the nodes can jointly compute the authorization function of the data at the moment.
5. The block chain based health data privacy protection and sharing system of claim 1, wherein: the data encryption of the data store helps the user to create a unique digital identity and corresponding public and private key pairs based on the user's unique identity information.
6. The block chain based health data privacy protection and sharing system of claim 2, wherein: and the third-party institutions such as the medicine enterprises, the insurance businessmen and the like carry out real-time bonus sharing for user data payment according to the data contribution ratio of each party by means of intelligent contracts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010301548.5A CN111488619A (en) | 2020-04-16 | 2020-04-16 | Health data privacy protection and sharing system based on block chain |
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| CN202010301548.5A CN111488619A (en) | 2020-04-16 | 2020-04-16 | Health data privacy protection and sharing system based on block chain |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112287392A (en) * | 2020-11-23 | 2021-01-29 | 广东科学技术职业学院 | Intelligent contract implementation method and system with privacy information protection function |
| CN112347188A (en) * | 2020-10-16 | 2021-02-09 | 零氪科技（北京）有限公司 | Authorization and access auditing system and method based on private 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 |
| CN112487494A (en) * | 2020-11-30 | 2021-03-12 | 孙兰 | Health data management system based on block chain technology |
| CN113141371A (en) * | 2021-04-30 | 2021-07-20 | 北京极智数仓科技有限公司 | Network data management circulation control method based on privacy protection and network cloud platform |
| CN116776389A (en) * | 2023-08-15 | 2023-09-19 | 中电科大数据研究院有限公司 | Medical industry data security supervision system based on block chain |
-
2020
- 2020-04-16 CN CN202010301548.5A patent/CN111488619A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112347188A (en) * | 2020-10-16 | 2021-02-09 | 零氪科技（北京）有限公司 | Authorization and access auditing system and method based on private 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 |
| CN112380543B (en) * | 2020-10-23 | 2024-03-19 | 重庆大学 | Electronic medical data privacy protection and safe sharing system based on blockchain |
| CN112287392A (en) * | 2020-11-23 | 2021-01-29 | 广东科学技术职业学院 | Intelligent contract implementation method and system with privacy information protection function |
| CN112287392B (en) * | 2020-11-23 | 2023-06-02 | 广东科学技术职业学院 | Intelligent contract implementation method and system with privacy information protection function |
| CN112487494A (en) * | 2020-11-30 | 2021-03-12 | 孙兰 | Health data management system based on block chain technology |
| CN112487494B (en) * | 2020-11-30 | 2023-08-25 | 广州铭医在线科技有限公司 | Health data management system based on blockchain technology |
| CN113141371A (en) * | 2021-04-30 | 2021-07-20 | 北京极智数仓科技有限公司 | Network data management circulation control method based on privacy protection and network cloud platform |
| CN116776389A (en) * | 2023-08-15 | 2023-09-19 | 中电科大数据研究院有限公司 | Medical industry data security supervision system based on block chain |
| CN116776389B (en) * | 2023-08-15 | 2023-11-24 | 中电科大数据研究院有限公司 | Medical industry data security supervision system based on block chain |
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Application publication date: 20200804 |