期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：252
期号：3
页码：1-11
DOI：10.1088/1755-1315/252/3/032175
出版社：IOP Publishing
摘要：In order to improve the data security in the computing environment, a "public auditing" scheme PARCC was proposed for the regenerative coding data in the cloud computing system. PARCC allows the user to use a third-party auditor TPA to remote check the integrity of the data. In addition, in order to solve the data owner without online failure data/signature of regeneration, was introduced to the system in one and a half-trusted agent, and designed a new data signature scheme, allowing the agent to replace the data owner to provide renewable data valid signatures. Considering the privacy protection of data, the random cover method of coefficient in PARCC scheme ensures that the user data will not be leaked during the audit and repair process. The safety of the scheme is proved, and the performance of the scheme is comprehensively evaluated and analyzed through the theory. The results show that the scheme has good performance.
