跨云存储环境下协同的动态数据持有方案

doi:10.16511/j.cnki.qhdxxb.2017.25.044

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摘要为了认证跨云环境下用户数据的完整性，该文提出了一种协同的动态数据持有CDDP （cooperative dynamic data possession）方案。首先，利用分层Hash索引技术，将多个云存储服务提供商的响应消息聚合为一个消息，通过云存储服务提供商、组织者和可信第三方之间的交互通信实现了数据的持有性认证。其次，通过对Hash索引表（index-Hash table）中只涉及更新数据块的索引记录和标签信息的更新，实现了数据修改、数据插入和数据删除等用户数据的动态更新。结果表明：该方案降低了计算时间，具有完备性和抵抗伪造攻击等属性。

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	作者相关文章
	曹来成
	何文文
	刘宇飞
	郭显
	冯涛

关键词 ：动态数据持有, 完整性认证, 动态更新, 云存储安全

Abstract：User data integrity across cloud storage can be verified by a cooperative dynamic data possession (CDDP) scheme presented here. A layered Hash index is used to aggregate the response messages of the cloud storage service providers into one message with the communications among the cloud service providers, the organizer and a trusted third party used to verify the data possession. Dynamic updates of the user data, such as data modifications, data insertions, and data deletions, only require updating of the index records and the data block tags in the index-Hash table. This scheme reduces the computation times and resists forgery attacks.

Key words： dynamic data possession integrity verification dynamic operations cloud storage security

收稿日期: 2016-12-18 出版日期: 2017-10-15

ZTFLH:

TP393.08

引用本文:

曹来成, 何文文, 刘宇飞, 郭显, 冯涛. 跨云存储环境下协同的动态数据持有方案[J]. 清华大学学报（自然科学版）, 2017, 57(10): 1048-1055.
CAO Laicheng, HE Wenwen, LIU Yufei, GUO Xian, FENG Tao. Cooperative dynamic data possession scheme across a cloud storage environment. Journal of Tsinghua University(Science and Technology), 2017, 57(10): 1048-1055.

链接本文:

http://jst.tsinghuajournals.com/CN/10.16511/j.cnki.qhdxxb.2017.25.044 或 http://jst.tsinghuajournals.com/CN/Y2017/V57/I10/1048

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