Abstract
A new access control method based on multi-authority in cloud storage service
Highlights
With the arrival of the era of big data, data has become a kind of important assets
This paper proposes an access control method to revoke user rights based on cloud storage service
This paper proposes an access control method that can revoke user rights in the e-commerce cloud storage service
Summary
With the arrival of the era of big data, data has become a kind of important assets. In order to get a better utilization of big data, paid or unpaid data sharing will be a trend. In the KP-ABE framework, ciphertext is associated with a set of descriptive attributes, and the access control structure is contained in the user key. In the CP-ABE framework, the ciphertext contains an access control structure, and the user key is associated with a set of descriptive attributes, which is similar to the traditional access control mechanism. Pervez et al.[11] proposes an autonomous access scheme that revokes user rights by reconstructing access structures The innovation of this method is that user privileges can be revoked only if a new attribute is added to the original access tree. In cloud storage access control, once there is revocation of user rights, the data owner encrypts the ciphertext again, regenerates the user's private key and distributes it to each user. This paper proposes an access control method to revoke user rights based on cloud storage service. There is no need to update the ciphertext components associated with all attributes, which can be efficiently revoked
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