计算机科学 ›› 2016, Vol. 43 ›› Issue (10): 172-176.doi: 10.11896/j.issn.1002-137X.2016.10.032
徐洋,朱丹,张焕国,谢晓尧
XU Yang, ZHU Dan, ZHANG Huan-guo and XIE Xiao-yao
摘要： 针对存储在云端的大数据的安全性和动态更新问题,提出一种基于代数签名持有性审计的大数据安全存储方案。构建可信第三方审计者,利用代数签名(AS)技术对大数据进行数据持有性审计(DPA)以确保数据的完整性。另外,基于分而治之(DC)思想构建一种新型数据结构,使数据拥有者可以动态地进行修改、插入和删除操作,同时通过减少平移数据块的数量来降低操作的计算复杂度。实验结果表明,该方案能够有效地检测恶意操作,提供了较高的数据安全性,同时大大降低了服务器和审计端的计算量。
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