一种共享数据完整性验证方案的分析与改进  

Analysis and improvement of shared data integrity verification sheme

作　　者：杨同豪[1] 李俊全[1] 郁滨[1] 

机构地区：[1]解放军信息工程大学,郑州450001

出　　处：《计算机工程与应用》2015年第22期16-21,共6页Computer Engineering and Applications

基　　金：全军军事类研究生资助课题(No.2014JY170)

摘　　要：首先分析了一种云计算环境下公开可验证的共享数据完整性验证方案,指出其无法抵抗数据恢复攻击和完整性伪造攻击,从而存在数据泄露和完整性欺骗的风险。在此基础上提出一个安全性增强的改进方案并对其进行了安全性分析和性能开销分析,分析结果表明该方案保持了数据存储安全性和隐私保护性,并且能够高效实现共享数据的完整性验证,具备较高的安全性和验证效率。Firstly, a shared data integrity verification sheme which supports public verifiability in the cloud is analyzed.The analysis shows that the sheme is vulnerable to data recovery attack and integrity forgery attack, which bring the risk of privacy disclosure and integrity deception. Then, on the basis of this analysis, an improved sheme with security enhancement is proposed. Finally, the security analysis and performance analysis of this improved sheme are made. The results indicate that this sheme can keep the security and privacy of data storage while implement shared data integrity verification efficiently.Thus this scheme provides a higher level of security along with high efficiency.

关 键 词：云计算 共享数据 安全存储 数据完整性 公开可验证 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]