Research on attribute-based user rights management in cloud environment

Research on attribute-based user rights management in cloud environment

Li Yubao Fannai Kihuimin Liu Yan

User Rights Assignment is one of the most important problems in cloud computing service, and a user Rights management scheme based on attribute is proposed. This scheme takes the new user key distribution in cloud service as the research object, in this paper, the user signature authentication and decryption management mechanism is discussed, and the data owner and the authorized person choose the attribute set, and the data owner defines the ciphertext access structure based on the attribute set, so that the user can obtain the decryption key only through the authorized person authentication. Achieve the goal of user privilege escalation and degraded synchronization management. In addition, the scheme takes group attribute set update as the center to design the Cp-abe group signature Verification mechanism, which makes the data owner, user and the authorized person compose group, and the user can sign the message and public authentication based on the group and its own attribute to protect the fine-grained access control of the ciphertext data. Finally, the proof result of validity and forgery of the signature is given.

Research on attribute-based user rights management in cloud environment