Open AccessAn online/offline distributed attribute-based authentication scheme
Author(s) -
Xin Liu,
Man Guo,
Xuzhou Li,
Bin Zhang
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1607/1/012044
Subject(s) - computer science , ciphertext , authentication (law) , encryption , scheme (mathematics) , attribute based encryption , computer security , cryptography , server , cloud computing , outsourcing , access control , anonymity , computation , service provider , computer network , service (business) , public key cryptography , algorithm , mathematics , mathematical analysis , economy , political science , law , economics , operating system
Attribute-based authentication is an effective cryptography mechanism, which makes it possible for service providers to implement fine-grained access control on cloud resources. Although many attribute-based authentication schemes have been proposed, most of them only support single attribute authority and users have to perform a large amount of computation in the authentication phase. By extending the ciphertext policy attribute-based encryption scheme of Rouselakis et al, a distributed attribute-based authentication scheme was designed. The feature of the new scheme is to optimize the online computation efficiency of both service providers and users, i.e., by introducing the technique of online/offline attribute-based encryption, the online computational burden of semi trusted servers is greatly reduced. On the other hand, by introducing outsourcing decryption, users’ computation in the authentication stage is independent of the size of underlying access structures. Compared with previous schemes, the new scheme satisfies several ideal properties, that is, introducing distributed authorities, supporting outsourcing computation, satisfying anonymity and unlinkability, and so on.