Research Article
A RBAC Model Based on Identity-Based Cryptosystem in Cloud Storage
@INPROCEEDINGS{10.1007/978-3-030-21373-2_28, author={Jian Xu and Yanbo Yu and Qingyu Meng and Qiyu Wu and Fucai Zhou}, title={A RBAC Model Based on Identity-Based Cryptosystem in Cloud Storage}, proceedings={Security and Privacy in New Computing Environments. Second EAI International Conference, SPNCE 2019, Tianjin, China, April 13--14, 2019, Proceedings}, proceedings_a={SPNCE}, year={2019}, month={6}, keywords={Access control RBAC Identity-based cryptosystem Cloud storage}, doi={10.1007/978-3-030-21373-2_28} }- Jian Xu
Yanbo Yu
Qingyu Meng
Qiyu Wu
Fucai Zhou
Year: 2019
A RBAC Model Based on Identity-Based Cryptosystem in Cloud Storage
SPNCE
Springer
DOI: 10.1007/978-3-030-21373-2_28
Abstract
Aiming at the shortcomings of most of existing ciphertext access control scheme in cloud storage does not support dynamic update of access control strategy, has large computational overhead ,combine identity-based cryptosystem and role based access control model (using RBAC1 model of the RBAC96 model family), build RBAC model based on identity-based cryptosystem in cloud storage. This paper presents a formal definition of the scheme, a detailed description of four tuple used to represent access control strategy, the hybrid encryption strategy and Re-encrypt when writing strategy in order to improve the efficiency of the system, detailed steps of system initialization, add and delete users, add and delete permissions, add and delete roles, add and delete role inheritance, assign and remove user, assign and remove permission, read and write file algorithm.