An efficient fine-grained data access control system with a bounded service number

Information Sciences(2022)

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摘要
•We propose a new CP-ABE with verifiable outsourced decryption.•We define a fine-grained data access control system model with limited access times.•We construct a new fine-grained data access control system with limited access times.•We made a detailed efficiency comparison between the new system and similar systems.
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关键词
Fine-grained access control,Attribute-based encryption,Verifiable outsourced decryption,User revocation,Attribute update
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