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A secure data sharing scheme with cheating detection based on Chaum-Pedersen protocol for cloud storage

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摘要 With the development of cloud computing technology, data can be outsourced to the cloud and conveniently shared among users. However, in many circumstances, users may have concerns about the reliability and integrity of their data. It is crucial to provide data sharing services that satisfy these security requirements. We introduce a reliable and secure data sharing scheme, using the threshold secret sharing technique and the ChaumPedersen zero-knowledge proof. The proposed scheme is not only effective and flexible, but also able to achieve the semantic security property. Moreover, our scheme is capable of ensuring accountability of users’ decryption keys as well as cheater identification if some users behave dishonestly. The efficiency analysis shows that the proposed scheme has a better performance in terms of computational cost, compared with the related work. It is particularly suitable for application to protect users’ medical insurance data over the cloud.
出处 《信息与电子工程前沿:英文版》 SCIE EI CSCD 2019年第6期787-800,共14页 Frontiers of Information Technology & Electronic Engineering
基金 the National Key R&D Program of China (No. 2017YFB0802000) the National Natural Science Foundation of China (Nos. 61772326 and 61572303) the Research Fund for International Young Scientists, China (No. 61750110528) National Cryptography Development FYind for the 13th Five- Year Plan, China (No. MMJJ20170216), the Foundation of State Key Laboratory of Information Security, China (No. 2017-MS- 03) the Fundamental Research Funds for the Central Universities, China (No. GK201702004) the Scientific Research Program Funded by Shaanxi Provincial Education Department, China (No. 16JK1109), the Provincial Natural Science Foundation Research Project of Shaanxi, China (No. 2017JQ6029) the Doctoral Scientific Fund Project of Shaanxi University of Science & Technology, China (No. BJ11-12).
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