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- W4385215986 abstract "Cloud computing facilitates data exchange and outsourcing. Any business or organization may exchange data for societal and individual benefit. Organizations lose control of their data when they upload files to the cloud. As a method of restricting access to data in a cloud setting, attribute-based encryption (ABE) has gained popularity. However, current ABE schemes have some limitations. First, contemporary ABE techniques are incapable of depicting the real-world situations of corporate data exchange, particularly when the companies are hierarchically structured. Second, they have scalability constraints when it comes to key management. Third, it is necessary to streamline the revocation methods in order to accommodate hierarchical data sharing. In this paper, we extend our multi-authority scheme HD-MAABE, by incorporating a delegation service between the root master authorities and the domain master authorities, allowing for greater security and scalability. Using mediation server and keeping an attribute revocation list on the cloud server makes the revocation procedure simple. The scheme supports the LSSS policy structure’s adaptability. Proof of security is based on q-parallel BDHE security assumptions. We show that the proposed method is secure as well as computationally and functionally efficient through the use of cost analysis, feature comparison and security analysis." @default.
- W4385215986 created "2023-07-25" @default.
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- W4385215986 date "2023-01-01" @default.
- W4385215986 modified "2023-10-14" @default.
- W4385215986 title "Extended HD-MAABE Scheme Supporting Delegation and Revocation for Cloud-based Organizational Data Sharing" @default.
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- W4385215986 doi "https://doi.org/10.1007/978-981-99-3315-0_24" @default.
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