Du Jianming, Dong Guofang, Ning Juangui, Xu Zhengnan, Yang Ruicheng
School of Electrical and Information Technology, Yunnan Minzu University, Kunming, 650504, China.
Yunnan Key Laboratory of Unmanned Autonomous System, Yunnan Minzu University, Kunming, 650504, China.
Sci Rep. 2024 Mar 30;14(1):7582. doi: 10.1038/s41598-024-58325-y.
With the continuous development of cloud computing, the application of cloud storage has become more and more popular. To ensure the integrity and availability of cloud data, scholars have proposed several cloud data auditing schemes. Still, most need help with outsourced data integrity, controlled outsourcing, and source file auditing. Therefore, we propose a controlled delegation outsourcing data integrity auditing scheme based on the identity-based encryption model. Our proposed scheme allows users to specify a dedicated agent to assist in uploading data to the cloud. These authorized proxies use recognizable identities for authentication and authorization, thus avoiding the need for cumbersome certificate management in a secure distributed computing system. While solving the above problems, our scheme adopts a bucket-based red-black tree structure to efficiently realize the dynamic updating of data, which can complete the updating of data and rebalancing of structural updates constantly and realize the high efficiency of data operations. We define the security model of the scheme in detail and prove the scheme's security under the difficult problem assumption. In the performance analysis section, the proposed scheme is analyzed experimentally in comparison with other schemes, and the results show that the proposed scheme is efficient and secure.
随着云计算的不断发展，云存储的应用越来越普及。为了确保云数据的完整性和可用性，学者们提出了几种云数据审计方案。然而，大多数方案在外部数据完整性、可控外包和源文件审计方面仍存在困难。因此，我们提出了一种基于身份加密模型的可控委托外包数据完整性审计方案。我们提出的方案允许用户指定一个专用代理来协助将数据上传到云端。这些授权代理使用可识别的身份进行认证和授权，从而在安全的分布式计算系统中避免了繁琐的证书管理。在解决上述问题的同时，我们的方案采用基于桶的红黑树结构来高效地实现数据的动态更新，能够不断完成数据更新和结构更新的重新平衡，实现数据操作的高效性。我们详细定义了该方案的安全模型，并在困难问题假设下证明了该方案的安全性。在性能分析部分，将所提方案与其他方案进行了实验对比分析，结果表明所提方案高效且安全。
