一种基于H-MHT的动态数据完整性检查方案

云存储可以为用户提供高质量的、按需分配的数据存储服务,能够使用户以较小的代价来解决本地软/硬件资源不足、移动不便、存储设备毁坏或丢失等问题。但对于用户而言,云存储并不完全可信,他们往往担心存储在云端的数据的完整性问题。为此,提出一种基于H-MHT的动态数据完整性检查方案。在RDPC（remote data possession checking）协议的基础上,引入H-MHT认证数据结构,将文件的使用频率作为参考因素添加到检查方案中,构建一棵类似哈夫曼树的二叉树,并通过动态调整树结构来支持数据的动态操作。模拟实验结果表明,该方案在检查的准确性和检查效率方面具有明显的优势,能够很好地支持云存储环境...

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Bibliographic Details
Published in计算机应用研究 Vol. 32; no. 12; pp. 3710 - 3713
Main Author 李莹 张永胜 马洁
Format Journal Article
LanguageChinese
Published 山东省分布式计算机软件新技术重点实验室,济南250014 2015
山东师范大学信息科学与工程学院,济南250014
Subjects
H-MHT
动态RDPC协议
同态哈希函数
数据完整性检查
动态RDPC协议
dynamic RDPC protocol
H-MHT
homomorphic hash function
data integrity checking
同态哈希函数
数据完整性检查
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ISSN1001-3695
DOI10.3969/j.issn.1001-3695.2015.12.043

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Summary:云存储可以为用户提供高质量的、按需分配的数据存储服务,能够使用户以较小的代价来解决本地软/硬件资源不足、移动不便、存储设备毁坏或丢失等问题。但对于用户而言,云存储并不完全可信,他们往往担心存储在云端的数据的完整性问题。为此,提出一种基于H-MHT的动态数据完整性检查方案。在RDPC（remote data possession checking）协议的基础上,引入H-MHT认证数据结构,将文件的使用频率作为参考因素添加到检查方案中,构建一棵类似哈夫曼树的二叉树,并通过动态调整树结构来支持数据的动态操作。模拟实验结果表明,该方案在检查的准确性和检查效率方面具有明显的优势,能够很好地支持云存储环境下动态数据的完整性检查。
Bibliography:51-1196/TP
Cloud storage can provide users with high-quality and on-demand data storage services and free them from the burden of maintenance and management. However, the cloud servers are not fully trusted for users. Whether the data stored on cloud are complete or not has become a major concern of users. Therefore, how to verify the integrity of remote data efficiently has become a major problem to be solved. For this issue, this paper proposed a dynamic remote data integrity checking scheme based on H-MHT. In order to support dynamic operations better, the scheme adopted the H-MHT authentication data structure and took the frequency of file as a reference factor. Simulation experimental results show that the scheme has a distinct advantage in accuracy and efficiency and demonstrates the superiority of dynamic data integrity checking under the cloud storage environment.
Li Ying, Zhang Yongsheng , Ma Jie （1. School of Information Science ＆ Engineering, Shandong Normal University, Jinan 250014, China; 2. Shando
ISSN:1001-3695
DOI:10.3969/j.issn.1001-3695.2015.12.043