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MIStore: a Blockchain-Based Medical Insurance Storage System
Lijing Zhou1, Licheng Wang2, Yiru Sun1
1State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing, 100876, China.
Journal of Medical Systems
|July 4, 2018
Summary
This study introduces MIStore, a blockchain-based medical insurance storage system offering tamper-resistance and high credibility. The system protects patient data while enabling secure, privacy-preserving computations for insurance claims.
Area of Science:
- Computer Science
- Information Security
- Distributed Systems
Background:
- Blockchain technology offers decentralization and tamper-resistance, driving its adoption in various industries.
- Existing medical insurance systems face challenges with data security, privacy, and credibility.
- There is a need for secure and efficient storage systems for sensitive medical insurance data.
Purpose of the Study:
- To propose and evaluate MIStore, a novel blockchain-based system for medical insurance data storage.
- To leverage blockchain's tamper-resistance for enhanced data credibility and security.
- To design a system that protects patient data while allowing privacy-preserving computations for insurance claims.
Main Methods:
- Implementation of a (t, n)-threshold MIStore protocol utilizing blockchain technology.
- Secure storage of patient spending data by hospitals on the blockchain, protected by n servers.
- Utilization of homomorphic computations by servers for insurance claim processing.
- Deployment and performance evaluation of MIStore on the Ethereum blockchain.
Main Results:
- MIStore provides a high-credibility storage system due to blockchain's tamper-resistance.
- Patient data is protected, with servers unable to access sensitive information indefinitely.
- The system requires minimal memory and CPU resources for participating entities (insurance company, servers, hospital).
- Performance evaluation on Ethereum demonstrates the system's feasibility.
Conclusions:
- MIStore offers a secure, credible, and efficient solution for medical insurance data storage using blockchain.
- The system enhances data privacy through secure multi-party computation techniques.
- MIStore presents a promising approach for modernizing medical insurance data management.
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