网络与信息安全学报2024，Vol.10Issue(2)：95-105,11.DOI:10.11959/j.issn.2096-109x.2024015
基于区块链的个人健康护照存储、共享与验证方案
Individual health passport storage,sharing and verification scheme based on blockchain
摘要
Abstract
As the demand for international travel escalates,the individual health passport has emerged as an essential instrument for verifying the health status of travelers and fulfilling entry criteria.To tackle the challenges associated with the global sharing of individual health passports,including information fragmentation,privacy concerns,and the risk of counterfeiting,a blockchain-based scheme for the secure storage,sharing,and verification of individual health passports was developed.This scheme employed a hybrid on-chain and off-chain storage methodology and incorporated searchable encryption with blockchain technology.This integration aimed to streamline blockchain storage,alleviating the storage load while guaranteeing the dependable archiving and secure dissemination of user-sensitive data.The scheme also refined the weak consensus mechanism,with an improved algorithm that achieved consensus in merely two stages.This innovation significantly diminished the communication complexity among nodes and amplified the throughput capacity of the blockchain system.To cater to multi-user environments,the scheme introduced and enhanced aggregate signature technology.This enhancement minimized the computational load associated with signature verification and facilitated the swift identification of potential malicious forgers.An exhaustive security analysis was conducted to substantiate the scheme's security and dependability.Subsequent simulation outcomes indicate that,in comparison to existing solutions,the proposed scheme realizes substantial optimizations of up to 49.89%in computational overhead and 25.81%in communication overhead within multi-user contexts.Moreover,the proposed consensus mechanism demonstrates significant efficiency benefits across varying node counts.关键词
区块链/共识算法/聚合签名/可搜索加密Key words
blockchain/consensus algorithm/aggregate signature/searchable encryption分类
信息技术与安全科学引用本文复制引用
高汉成,吉浩宇,高晨昊,黄海平..基于区块链的个人健康护照存储、共享与验证方案[J].网络与信息安全学报,2024,10(2):95-105,11.基金项目
国家自然科学基金(No.62072252) （No.62072252）
江苏省科研与实践创新计划(No.KYCX22_1016)The National Natural Science Foundation of China(No.62072252),The Postgraduate Research and Practice Innovation Program of Jiangsu Province(No.KYCX22_1016) （No.KYCX22_1016）
