期刊
IEEE SYSTEMS JOURNAL
卷 15, 期 1, 页码 577-585出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSYST.2020.2978146
关键词
Cloud computing; Servers; Data integrity; Data privacy; Protocols; Data models; Cloud storage; identity-based cryptography; remote data checking; privacy preserving
类别
资金
- National Natural Science Foundation of China [61972095, U1736112, 61772009, 61902140, 61822202, 61872089]
- Anhui Provincial Natural Science Foundation [1908085QF288]
This article proposes a new Identity-based RDIC scheme that utilizes a homomorphic verifiable tag to reduce system complexity, while also masking original data with random integer addition to protect data privacy. The scheme is proven to be secure under the assumption of computational Diffie-Hellman problem and is shown to be efficient and feasible for real-life applications through experiment results.
Although cloud storage service enables people easily maintain and manage amounts of data with lower cost, it cannot ensure the integrity of people's data. In order to audit the correctness of the data without downloading them, many remote data integrity checking (RDIC) schemes have been presented. Most existing schemes ignore the important issue of data privacy preserving and suffer from complicated certificate management derived from public key infrastructure. To overcome these shortcomings, this article proposes a new Identity-based RDIC scheme that makes use of homomorphic verifiable tag to decrease the system complexity. The original data in proof are masked by random integer addition, which protects the verifier from obtaining any knowledge about the data during the integrity checking process. Our scheme is proved secure under the assumption of computational Diffie-Hellman problem. Experiment result exhibits that our scheme is very efficient and feasible for real-life applications.
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