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28 November 2022 PRE-DAC: proxy re-encryption based dynamic access control for secure cloud data
Ruikai Wang, Fuyou Miao, Yue Yu
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Proceedings Volume 12503, International Conference on Network Communication and Information Security (ICNCIS 2022); 125030S (2022) https://doi.org/10.1117/12.2657100
Event: International Conference on Network Communication and Information Security (ICNCIS 2022), 2022, Qingdao, China
Abstract
With the rapid development of technologies such as cloud computing and Internet of Things, the amount of data outsourced to all kinds of remote cloud storage providers is growing. Out of security concerns, it is necessary for data owners to encrypt sensitive data before uploading it to the cloud, which makes it difficult to enforce access control of the outsourced data. Specifically, the time cost for user revocation is considerably high because of the large number of encryptions required for updating ciphertext in the cloud. In this paper, we utilize Proxy Re-Encryption (PRE) to propose PRE-DAC (PRE based Dynamic Access Control), an access control scheme for encrypted cloud data, where the efficiency of user revocation is significantly improved. Simulation results using real-world datasets show that the number of asymmetric encryptions for each revocation is prominently less than that of the existing schemes.
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Ruikai Wang, Fuyou Miao, and Yue Yu "PRE-DAC: proxy re-encryption based dynamic access control for secure cloud data", Proc. SPIE 12503, International Conference on Network Communication and Information Security (ICNCIS 2022), 125030S (28 November 2022); https://doi.org/10.1117/12.2657100
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KEYWORDS
Clouds
Data storage
Network security
Internet
Data communications
Cryptography
Public-key cryptography
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