计算机科学 ›› 2017, Vol. 44 ›› Issue (3): 55-58.doi: 10.11896/j.issn.1002-137X.2017.03.014
马海峰,杨家海,姚念民,关明山
MA Hai-feng, YANG Jia-hai, YAO Nian-min and GUAN Ming-shan
摘要: 在云存储环境下,云服务器并不完全可信。用户如何以较低开销验证云上数据的完整性成为用户日益关心的问题。目前已提出多种保护方法,这些方法在认证多个文件时需要对文件逐一进行认证,因此当文件数很大时其计算和通信开销仍较大。针对此问题,提出一种层次式远程数据持有检测方法。该方法与远程数据持有检测方法相结合,能提供高效且安全的远程数据完整性保护,并支持动态数据操作。对提出的方法进行了安全性分析和实验评估,结果表明,提出的方法安全可靠,在较低的漏检率下,相比远程数据持有检测方法有45%~80%的性能提升。
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