一种高效、安全的云存储动态数据公共批量审计协议

Liu Yang, Lili Xia
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引用次数: 4

摘要

云存储为众多公司和个人管理数据提供了极大的便利。然而,数据所有者最终失去了对其数据的物理控制,这在云存储环境中引入了许多潜在的安全隐患。许多学者对云存储数据的安全问题进行了研究。为了解决这一问题,我们提出了一种支持动态操作和透明验证的安全审计方案。利用BLS短签名和序列强制的B+哈希树结构,审计方案更加有效。该方案在审计过程中引入了一个组织者,以防止TPA获取有关数据位置的任何信息。因此,该方案对TPA是完全透明的。同时,该方案利用随机掩码和双线性聚合签名技术实现隐私保护和批量审计。
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An Efficient and Secure Public Batch Auditing Protocol for Dynamic Cloud Storage Data
Cloud storage supplies enormous convenience for numerous companies and individuals to manage their data. However, data owners lose ultimately physical control of their data, which introduces many potential safety hazards in the cloud storage environment. Many scholars have made studies on the security problem of cloud storage data. To solve the problem, we propose a secure audit scheme supporting dynamic operation and transparent verification. Utilizing BLS short signature as well as the sequence-enforced B+ Hash Tree structure, the audit scheme is more effective. The scheme introduces an organizer in the auditing process to prevent the TPA from getting any information about the data's location. Thus, the scheme is completely transparent for TPA. Meanwhile, the scheme utilizes random mask and bilinear aggregate signature technology to realize privacy protection and batch audit.
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