山西大学学报（自然科学版）2025，Vol.48Issue(3)：505-515,11.DOI:10.13451/j.sxu.ns.2024007
边缘环境下基于动态变色龙认证树的完整性审计
Integrity Audit Based on Dynamic Chameleon Authentication Tree in Edge Environments
摘要
Abstract
Edge computing structures are more complex than traditional cloud computing,so data integrity issues become even more important.In order to solve the problems of poor privacy protection ability,high computing and storage overhead,high system com-plexity,and lack of support for dynamic operation in the current integrity audit schemes,this paper proposes an integrity audit scheme based on dynamic chameleon authentication tree.In the data encryption stage,the scheme introduces a certificateless public key cryptography system to generate a data encryption and decoding key at the user end to ensure the integrity and confidentiality of the data in the process of system transmission;in the data upload stage,the dynamic chameleon authentication tree storage structure is adopted to ensure the full dynamic operation of the data access process and reduce the communication computing overhead;and the computing power of the edge node is used to carry out integrity audit,which avoids the problem of single point failure caused by the third-party audit agency.Under the stochastic oracle model,the confidentiality of the scheme is proved based on the computation-al DH difficulty problem and the discrete logarithmic difficulty problem.The experiments show that compared with other integrity audit schemes,the proposed scheme has better computing efficiency and can save about 50%of computing and storage overhead.关键词
数据完整性/变色哈希函数/无证书公钥密码/默克尔树/动态审计Key words
data integrity/chameleon hash function/certificateless public key cryptography/merkle tree/dynamic auditing分类
计算机与自动化引用本文复制引用
段敬,段婕,万雪枫,刘海涛..边缘环境下基于动态变色龙认证树的完整性审计[J].山西大学学报（自然科学版）,2025,48(3):505-515,11.基金项目
国网山西省电力公司科技项目(52051C220001) （52051C220001）
