CN110378143A - A kind of EHR based on block chain can search for encryption method - Google Patents
A kind of EHR based on block chain can search for encryption method Download PDFInfo
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- CN110378143A CN110378143A CN201910341971.5A CN201910341971A CN110378143A CN 110378143 A CN110378143 A CN 110378143A CN 201910341971 A CN201910341971 A CN 201910341971A CN 110378143 A CN110378143 A CN 110378143A
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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
- G06F16/22—Indexing; Data structures therefor; Storage structures
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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
- G06F16/24—Querying
- G06F16/245—Query processing
- G06F16/2458—Special types of queries, e.g. statistical queries, fuzzy queries or distributed queries
- G06F16/2471—Distributed queries
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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
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- 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
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- Mathematical Physics (AREA)
- Probability & Statistics with Applications (AREA)
- Computational Linguistics (AREA)
- Computer Hardware Design (AREA)
- Medical Informatics (AREA)
- Primary Health Care (AREA)
- Public Health (AREA)
- Medical Treatment And Welfare Office Work (AREA)
- Storage Device Security (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
A kind of EHR based on block chain can search for encryption method, includes the following steps: (1) and extracts EHR using Boolean expression to construct index, index is stored in the intelligent contract of peer-to-peer network；(2) data owner encrypts EHR data directory, and encrypted EHR data directory is added to block chain convenient for distribution EHR, and true EHR is stored in an encrypted form in public Cloud Server；(3) it when user wants access to these true EHR, needs to carry out authentication, i.e., is authorized using cipher key to data owner.The present invention promotes different medical institutions to share medical records in a secured manner, and only patient does not offer convenience, and the medical information of efficiently shared researcher also may be implemented.
Description
Technical field
The present invention relates to block chain correlative technology field, referring in particular to a kind of EHR based on block chain can search for encryption side
Method.
Background technique
Electric health record (EHR) is the set of personal health relevant information comprising and medical condition (such as: disease, medicine
Object, medical image) and personal information (such as name, age, gender, weight and bill information).Such data are usually quick
Sense, it needs to protect, refuses unwarranted access；Therefore, the ultimate challenge that medical health field faces first is that system pacify
Share medical data entirely (i.e. without result in leakage patient data).
A kind of common methods for sharing medical data are building EHR indexes, and are added before upload to the public or community cloud
It is close.The shortcomings that this method, is different the writing means that data set provider has oneself, this hinders different medical again in turn
Data sharing between organizations and individuals.Moreover, Cloud Server is not necessarily trusted completely.General feasible authentication mechanism is applicable in
In all search plans be also the document currently lacked.Effective countermeasure is to dishonourable in behaviour server or user currently not yet
It is punished.
Summary of the invention
In order to overcome the shortcomings of that safety existing for existing sharing medical data mode is poor, the present invention provides a kind of rush
The EHR based on block chain for sharing medical records in a secure manner into different medical mechanism can search for encryption method.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of EHR based on block chain can search for encryption method, include the following steps:
(1) EHR is extracted using Boolean expression to construct index, index is stored in the intelligent contract of peer-to-peer network；
(2) data owner encrypts EHR data directory, and encrypted EHR data directory is added to block chain convenient for dividing
With EHR, and true EHR is stored in an encrypted form in public Cloud Server；
(3) it when user wants access to these true EHR, needs to carry out authentication, that is, uses cipher key to number
It is authorized according to the owner.
Preferably, realizing the search mechanisms of financial justice by intelligent contract in step (1), using intelligent conjunction
About track monetary incentive, it is ensured that if data owner he reveal EHR and be obtained with remuneration, allow other users to search for number
According to library, at the same time, other users can obtain accurate search result, this attribute as long as their funds required for payment
Guarantee the fairness between data owner and user, each participant is treated substantially equally and is activated correct to execute
It calculates.
Further, in the step (1), all EHR are stored in database, and each EHR is considered as file, there is one
A unique document identifier, data owner scan all electric health record EHR and extract the institute for meeting conditional expression
There is record to constitute Boolean expression, data owner calls BuildIndex algorithm to generate the document identifier based on extraction
Index.
Preferably, all EHR are stored in database in step (1), each EHR is considered as file, there is one
A unique document identifier, data owner scan all electric health record EHR and extract the institute for meeting conditional expression
There is record to constitute Boolean expression, data owner calls BuildIndex algorithm to generate the document identifier based on extraction
Index.
Preferably, in step (3), mode of operation are as follows: when user wishes to search for some EHR, he is first to data
Owner verifies and obtains search token after authorization, and then user will request to search for intelligent contract using search token,
Intelligent contract will be using search token field of search block chain to obtain corresponding result and be returned to user.
This method can promote different medical institutions to share medical records in a secured manner, and only patient does not bring just
Benefit, also may be implemented the medical information of efficiently shared researcher, and data user can receive accurate or correct search
As a result, and being known that any rogue activity (such as: passing through malicious server) during audit or other investigation, makes doctor
With researcher can non-disclosre they in the case where access patient health data personal data.
The beneficial effects of the present invention are: different medical institutions is promoted to share medical records in a secured manner, it is not only
Patient offers convenience, and the medical information of efficiently shared researcher also may be implemented.
Specific embodiment
The present invention will be further described below.
A kind of EHR based on block chain can search for encryption method, include the following steps:
(1) EHR is extracted using Boolean expression to construct index, index is stored in the intelligent contract of peer-to-peer network；
The search mechanisms that financial justice is realized by intelligent contract track monetary incentive using intelligent contract, it is ensured that
As long as he reveals EHR and is obtained with remuneration data owner, other users is allowed to search for database, at the same time,
His user can obtain accurate search result as long as their funds required for payment, this attribute guarantees data owner and user
Between fairness, each participant be treated substantially equally and be activated with execute correctly calculate；
All EHR are stored in database, and each EHR is considered as file, there is a unique document identifier, number
All electric health record EHR, which are scanned, according to the owner constitutes boolean's expression with all records for meeting conditional expression are extracted
Formula, data owner call the index of document identifier of the BuildIndex algorithm generation based on extraction；
(2) data owner encrypts EHR data directory, and encrypted EHR data directory is added to block chain convenient for dividing
With EHR, and true EHR is stored in an encrypted form in public Cloud Server；
(3) it when user wants access to these true EHR, needs to carry out authentication, that is, uses cipher key to number
It is authorized according to the owner；
When user wishes to search for some EHR, he verifies to data owner first and obtains writ search after authorization
Board, then user will request to search for intelligent contract using search token, and intelligent contract will use search token field of search block chain
To obtain corresponding result and be returned to user.
The method of the present embodiment is intended to that different medical institutions is promoted to share medical records, the solution of proposition in a secured manner
Certainly method is not only that patient offers convenience, and the medical information of efficiently shared researcher also may be implemented.Data user can be with
It receives accurate or correct search result, and is known that any rogue activity (such as: passing through malicious server) is being examined
During meter or other investigation, enable doctor and researcher non-disclosre they in the case where access patient health data
Personal data.This method can be applied in the fields such as medical treatment, agricultural, finance, notarization, communication, supply chain, domain name, ballot.
Claims (4)
1. a kind of EHR based on block chain can search for encryption method, which is characterized in that described method includes following steps:
(1) EHR is extracted using Boolean expression to construct index, index is stored in the intelligent contract of peer-to-peer network；
(2) data owner encrypts EHR data directory, and encrypted EHR data directory is added to block chain convenient for distribution
EHR, and true EHR is stored in an encrypted form in public Cloud Server；
(3) it when user wants access to these true EHR, needs to carry out authentication, that is, uses cipher key to data institute
The person of having is authorized.
2. a kind of EHR based on block chain according to claim 1 can search for encryption method, which is characterized in that the step
Suddenly in (1), the search mechanisms of financial justice are realized by intelligent contract, track monetary incentive using intelligent contract, it is ensured that
As long as he reveals EHR and is obtained with remuneration data owner, other users is allowed to search for database, at the same time,
His user can obtain accurate search result as long as their funds required for payment, this attribute guarantees data owner and user
Between fairness, each participant be treated substantially equally and be activated with execute correctly calculate.
3. a kind of EHR based on block chain according to claim 1 or 2 can search for encryption method, which is characterized in that described
In step (1), all EHR are stored in database, and each EHR is considered as file, there is a unique document identifier,
Data owner scans all electric health record EHR and constitutes boolean's expression with all records for meeting conditional expression are extracted
Formula, data owner call the index of document identifier of the BuildIndex algorithm generation based on extraction.
4. a kind of EHR based on block chain according to claim 1 or 2 can search for encryption method, which is characterized in that described
In step (3), mode of operation are as follows: when user wishes to search for some EHR, he verifies to data owner first and in authorization
Search token is obtained afterwards, and then user will request to search for intelligent contract using search token, and intelligent contract will use writ search
Board searches for block chain to obtain corresponding result and be returned to user.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910341971.5A CN110378143A (en) | 2019-04-26 | 2019-04-26 | A kind of EHR based on block chain can search for encryption method |
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| CN201910341971.5A CN110378143A (en) | 2019-04-26 | 2019-04-26 | A kind of EHR based on block chain can search for encryption method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110837491A (en) * | 2019-11-25 | 2020-02-25 | 广州知弘科技有限公司 | Block chain financial big data processing system and method |
| CN111209585A (en) * | 2020-02-11 | 2020-05-29 | 广州电力交易中心有限责任公司 | Data processing method and system based on electric power transaction |
| CN111835500A (en) * | 2020-07-08 | 2020-10-27 | 浙江工商大学 | Searchable encryption data secure sharing method based on homomorphic encryption and block chain |
| CN112087439A (en) * | 2020-09-02 | 2020-12-15 | 杭州趣链科技有限公司 | Block chain transaction query method, system, computer device and storage medium |
| CN112149165A (en) * | 2020-09-24 | 2020-12-29 | 安徽师范大学 | Block chain-based social system and method with incentive mechanism and symptom matching function |
| CN114281873A (en) * | 2021-12-06 | 2022-04-05 | 重庆邮电大学 | Verifiable search method for medical block chain data |
| CN116226926A (en) * | 2023-05-08 | 2023-06-06 | 东信和平科技股份有限公司 | Block chain-based data security interaction method, device, equipment and medium |
Citations (2)
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| CN108876383A (en) * | 2018-08-27 | 2018-11-23 | 广东工业大学 | A kind of data trade method, device and equipment based on block chain |
| CN109493017A (en) * | 2018-11-05 | 2019-03-19 | 江苏大学 | Credible outsourcing storage method based on block chain |
-
2019
- 2019-04-26 CN CN201910341971.5A patent/CN110378143A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108876383A (en) * | 2018-08-27 | 2018-11-23 | 广东工业大学 | A kind of data trade method, device and equipment based on block chain |
| CN109493017A (en) * | 2018-11-05 | 2019-03-19 | 江苏大学 | Credible outsourcing storage method based on block chain |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110837491A (en) * | 2019-11-25 | 2020-02-25 | 广州知弘科技有限公司 | Block chain financial big data processing system and method |
| CN111209585B (en) * | 2020-02-11 | 2020-12-18 | 广州电力交易中心有限责任公司 | Data processing method and system based on electric power transaction |
| CN111209585A (en) * | 2020-02-11 | 2020-05-29 | 广州电力交易中心有限责任公司 | Data processing method and system based on electric power transaction |
| CN111835500B (en) * | 2020-07-08 | 2022-07-26 | 浙江工商大学 | Searchable encryption data secure sharing method based on homomorphic encryption and block chain |
| WO2022007889A1 (en) * | 2020-07-08 | 2022-01-13 | 浙江工商大学 | Searchable encrypted data sharing method and system based on blockchain and homomorphic encryption |
| CN111835500A (en) * | 2020-07-08 | 2020-10-27 | 浙江工商大学 | Searchable encryption data secure sharing method based on homomorphic encryption and block chain |
| CN112087439A (en) * | 2020-09-02 | 2020-12-15 | 杭州趣链科技有限公司 | Block chain transaction query method, system, computer device and storage medium |
| CN112087439B (en) * | 2020-09-02 | 2022-05-17 | 杭州趣链科技有限公司 | Block chain transaction query method, system, computer device and storage medium |
| CN112149165A (en) * | 2020-09-24 | 2020-12-29 | 安徽师范大学 | Block chain-based social system and method with incentive mechanism and symptom matching function |
| CN112149165B (en) * | 2020-09-24 | 2024-01-23 | 安徽师范大学 | Blockchain-based symptom matching social system and method with incentive mechanism |
| CN114281873A (en) * | 2021-12-06 | 2022-04-05 | 重庆邮电大学 | Verifiable search method for medical block chain data |
| CN116226926A (en) * | 2023-05-08 | 2023-06-06 | 东信和平科技股份有限公司 | Block chain-based data security interaction method, device, equipment and medium |
| CN116226926B (en) * | 2023-05-08 | 2023-08-22 | 东信和平科技股份有限公司 | Block chain-based data security interaction method, device, equipment and medium |
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Application publication date: 20191025 |