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Medical data security sharing system and method based on IPFS and alliance chain

A technology for medical data and sharing systems, applied in file systems, digital data protection, patient-specific data, etc., to solve problems such as security risks, single point of failure, and data theft

Pending Publication Date: 2020-11-10
ANHUI NORMAL UNIV
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Problems solved by technology

Although many works have proposed to solve the problems of data security, privacy protection and access control in medical data sharing by combining cloud computing and cryptographic algorithms, there are still some se

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  • Medical data security sharing system and method based on IPFS and alliance chain
  • Medical data security sharing system and method based on IPFS and alliance chain
  • Medical data security sharing system and method based on IPFS and alliance chain

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[0022] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0023] Before introducing the present invention in detail, let’s briefly introduce the role of the blockchain. Among them, the blockchain is a decentralized distributed system. It uses a P2P (peer-to-peer) network to maintain a cryptographically secure and non-tamperable And an unforgeable distributed public ledger, using smart contracts to achieve data interoperability. Blockchain technology has the characteristics of decentralization, openness and transparency, anti-tampering, anonymity and interactivity, and can provide effective help for the safe sharing of medical data. In the present invention, the alliance chain is a type of block chain, which is a kind of bl...

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Abstract

The invention relates to the technical field of alliance chain technology and electronic medical data security sharing, and discloses a medical data security sharing system and method based on IPFS and alliance chains, and the system comprises a data owner terminal which is used for encrypting original medical data through employing a symmetric secret key to obtain a medical data ciphertext, storing the medical data ciphertext in the IPFS, and transmitting the medical data ciphertext to a server; the ciphertext corresponding to the keyword and the ciphertext corresponding to the symmetric keyare uploaded to an alliance chain, and an excitation mechanism and a data access permission are set in the smart contract; and a data visitor terminal is used for obtaining the symmetric key corresponding to the target medical data and decrypting the target medical data based on the symmetric key corresponding to the target medical data and the hash address stored in the target medical data when the data access permission set in the smart contract is satisfied and the incentive cost shown by the incentive mechanism is paid. According to the invention, safe storage and sharing of medical data are realized, privacy security of patients is protected, and fine-grained access control of the patients to the medical data is realized.

Description

technical field [0001] The present invention relates to the technical fields of block chain technology and electronic medical data security sharing, in particular to a medical data sharing system and method based on IPFS and alliance chain. Background technique [0002] With the development of information technology, big data, cloud computing and other technologies, health management systems are widely used to manage personal health records (PHRs, personal health records). Because medical data can not only help patients record medical history, provide effective basis for doctors' diagnosis, but also provide a large amount of reliable data for disease research, medical data sharing has become an important application in health management systems. However, medical data contains a large amount of private and privacy-sensitive content, how to protect data security and privacy has become a key issue in medical data sharing. First of all, only real medical data can provide effect...

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Application Information

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IPC IPC(8): G16H10/60G06F21/62G06F21/60G06F16/176G06F16/14
CPCG16H10/60G06F21/6245G06F21/602G06F16/176G06F16/148G06F2221/2107Y02D10/00
Inventor 张爱清王勇韩凌云聂雪丽彭光宇
Owner ANHUI NORMAL UNIV
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