Accountable medical data storage method based on block chain

A medical data and blockchain technology, applied in the fields of medical data mining, patient-specific data, digital data protection, etc., can solve problems such as the inability of medical blockchain to achieve the effect of protecting personal privacy

Active Publication Date: 2020-02-28
NANJING UNIV OF POSTS & TELECOMM
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  • Abstract
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Problems solved by technology

From another point of view, the medical blockchain actually only protects the medical data index. Any illegal operation on

Method used

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  • Accountable medical data storage method based on block chain
  • Accountable medical data storage method based on block chain
  • Accountable medical data storage method based on block chain

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Embodiment Construction

[0070] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0071] A blockchain-based accountable medical data storage method comprising the following steps:

[0072] Step 1, initialize the system and generate a series of public parameters; participating users mainly include data producers, including patients and medical institutions, and data consumers, including scientific research institutions and some doctors, as well as key generation center KGC and cloud service provider CSP .

[0073] The specific content of Step 1 is:

[0074] Step 1.1, each participating user generates a string ID∈{0,1} associated with its own identity information * , the character strings associated with identity information of patients, medical institutions, scientific research institutions, some doctors, and cloud service providers are respectively expressed as:

[0075] {ID p , ID m , ID r , ID d , ID c} ...

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Abstract

The invention discloses an accountable medical data storage method based on a block chain. According to the system, a system framework different from an existing medical block chain is provided by combining a block chain technology and a cloud storage technology, and all operations, such as deleting medical data, storing medical data and querying medical data, carried out on the medical data are written into blocks through a consensus mechanism. Meanwhile, the system realizes non-repudiation of related users on data operation through a cryptography method, and illegal operation of any user isresponded by taking data stored in the block chain as evidence.

Description

technical field [0001] The invention proposes an accountable medical data storage method based on blockchain, which relates to the technical fields of blockchain, cloud storage, and data storage protection. Background technique [0002] The rapid development of information technology is quietly changing the medical and health system, such as the electronic health system (eHealth), that is, the information system that stores and processes patients' medical data. Compared with the traditional paper-based system, the eHealth system provides patients and medical institutions with a service that is more efficient, more fault-tolerant, and more flexible. Impact. Since modern electronic health care systems are data-intensive, the application of cloud computing technology in health care systems has shown great potential and has unprecedented advantages in actually managing medical data. This mechanism is known as cloud-assisted medicine. health system. While the advantages of clo...

Claims

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Application Information

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IPC IPC(8): G06F21/64G16H50/70G16H10/60
CPCG06F21/64G16H50/70G16H10/60
Inventor 黄海平孙翔肖甫李琦朱鹏杨健还雅如张厚泽
Owner NANJING UNIV OF POSTS & TELECOMM
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