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CLC number: TP309

On-line Access: 2024-03-25

Received: 2023-04-10

Revision Accepted: 2024-03-25

Crosschecked: 2023-08-17

Cited: 0

Clicked: 609

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Huifang Yu

https://orcid.org/0000-0003-4711-3128

Xiaoping BAI

https://orcid.org/0000-0002-7056-8211

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Frontiers of Information Technology & Electronic Engineering  2024 Vol.25 No.3 P.461-471

http://doi.org/10.1631/FITEE.2300248


Identity-based searchable attribute signcryption in lattice for a blockchain-based medical system


Author(s):  Huifang YU, Xiaoping BAI

Affiliation(s):  School of Cyberspace Security, Xi'an University of Posts & Telecommunications, Xi'an 710121, China; more

Corresponding email(s):   yuhuifang@xupt.edu.cn

Key Words:  Blockchain, Identity-based searchable attribute signcryption, Distributed storage, NTRU lattice


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.

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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.

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1,2,白小平1
1西安邮电大学网络空间安全学院,中国西安市,710121
2青海交通职业技术学院信息工程学院,中国西宁市,810003
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。

关键词:区块链;基于身份的可搜索属性签密;分布式存储;NTRU格

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