Visible to the public An Attribute Revocable CP-ABE Scheme

TitleAn Attribute Revocable CP-ABE Scheme
Publication TypeConference Paper
Year of Publication2019
AuthorsXiang, Guangli, Li, Beilei, Fu, Xiannong, Xia, Mengsen, Ke, Weiyi
Conference Name2019 Seventh International Conference on Advanced Cloud and Big Data (CBD)
Date PublishedSept. 2019
ISBN Number978-1-7281-5141-0
KeywordsAccess Control, attribute encryption, attribute encryption scheme CP-ABE, attribute revocable CP-ABE scheme, attribute revocation, authorisation, Big Data, ciphertext access control, ciphertext policy, ciphertext sharing, ciphertext storage, cloud computing, cloud storage environment, Collaboration, CP-ABE, cryptography, fine-grained attributes, policy-based governance, pubcrawl, RCP-ABE scheme, Scalability, storage management, Subset Cover

Ciphertext storage can effectively solve the security problems in cloud storage, among which the ciphertext policy attribute-based encryption (CP-ABE) is more suitable for ciphertext access control in cloud storage environment for it can achieve one-to-many ciphertext sharing. The existing attribute encryption scheme CP-ABE has problems with revocation such as coarse granularity, untimeliness, and low efficiency, which cannot meet the demands of cloud storage. This paper proposes an RCP-ABE scheme that supports real-time revocable fine-grained attributes for the existing attribute revocable scheme, the scheme of this paper adopts the version control technology to realize the instant revocation of the attributes. In the key update mechanism, the subset coverage technology is used to update the key, which reduces the workload of the authority. The experimental analysis shows that RCP-ABE is more efficient than other schemes.

Citation Keyxiang_attribute_2019