Provenance-based Hierarchical Encryption for Fine-grained Access Control in Cloud Computing

Abstract

In the big data era, files stored at cloud are usually supplemented, such as health record managing systems. Access policies on different sections of a file have similarities as well as differences. Hence, an efficient approach to constructing hierarchical access structures for different sections of a file not only achieves flexible fine-grained access control but also provides well-preserved confidentiality of data based on the preferences of each data producers. In this paper, we introduce an idea on the provenance-based access control policy along with its applicable cloud system. Then we propose the provenance-based hierarchical encryption to implement it.