医疗区块链环境下基于身份的格上可搜索属性签密方案

俞惠芳; 白小平

doi:10.1631/FITEE.2300248

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医疗区块链环境下基于身份的格上可搜索属性签密方案

常规文章 | Updated：2024-03-26

- 医疗区块链环境下基于身份的格上可搜索属性签密方案
- Identity-based searchable attribute signcryption in lattice for a blockchain-based medical system
- 信息与电子工程前沿(英文版) 2024年25卷第3期页码：461-471
- Affiliations：
  
  1.School of Cyberspace Security, Xi'an University of Posts & Telecommunications, Xi'an 710121, China
  2.School of Information Engineering, Qinghai Communications Technical College, Xining 810003, China
- Author bio：
  
  ‡Corresponding author
- Funds：
  
  the Special Project of Kunlun Talent Teaching Master of Qinghai Province, China([2020]18)
- DOI：10.1631/FITEE.2300248
  中图分类号： TP309
- 收稿：2023-04-10，
  
  修回：2023-08-17，
  
  录用：2023-08-17，
  
  纸质出版：2024-03-0
- Accepted：
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俞惠芳, 白小平. 医疗区块链环境下基于身份的格上可搜索属性签密方案[J]. 信息与电子工程前沿(英文版), 2024,25(3):461-471.

Huifang YU, Xiaoping BAI. Identity-based searchable attribute signcryption in lattice for a blockchain-based medical system[J]. Frontiers of Information Technology & Electronic Engineering, 2024, 25(3): 461-471.
俞惠芳, 白小平. 医疗区块链环境下基于身份的格上可搜索属性签密方案[J]. 信息与电子工程前沿(英文版), 2024,25(3):461-471. DOI： 10.1631/FITEE.2300248.

Huifang YU, Xiaoping BAI. Identity-based searchable attribute signcryption in lattice for a blockchain-based medical system[J]. Frontiers of Information Technology & Electronic Engineering, 2024, 25(3): 461-471. DOI： 10.1631/FITEE.2300248.

摘要

电子医疗系统在给人们提供便利的同时，面临数据伪造和信息泄露的风险。为解决这些问题，提出一种适用于医疗区块链的基于身份的格上可搜索属性签密（BCMS-LIDSASC）方案。BCMS-LIDSASC实现了区块链环境下去中心化和抗量子安全，可提供细粒度访问控制，同时具有可搜索性；此外，利用智能合约替代传统的可信第三方，用星际文件系统（IPFS）存储密文，缓解区块链的存储压力。相比而言，BCMS-LIDSASC拥有更短密钥、更小存储需求和更低计算成本，有助于安全高效地管理医疗数据，可保护患者的隐私信息和确保电子医疗系统的完整性。

Abstract

Electronic healthcare systems can offer convenience but face the risk of data forgery and information leakage. To solve these issues

we propose an identity-based searchable attribute signcryption in lattice for a blockchain-based medical system (BCMS-LIDSASC). BCMS-LIDSASC achieves decentralization and anti-quantum security in the blockchain environment

and provides fine-grained access control and searchability. Furthermore

smart contracts are used to replace traditional trusted third parties

and the interplanetary file system (IPFS) is used for ciphertext storage to alleviate storage pressure on the blockchain. Compared to other schemes

BCMS-LIDSASC requires smaller key size and less storage

and has lower computation cost. It contributes to secure and efficient management of medical data and can protect patient privacy and ensure the integrity of electronic healthcare systems.

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