2019/12/01 by Fan, Xinyu, Zhang, Faen, Song, Jianfei +2
#Cryptography and Security (cs.CR) #Databases (cs.DB) #FOS: Computer and information sciences
paper · doi:10.48550/arxiv.1912.00442
Even though the idea of partitioning provenance graphs for access control was previously proposed, employing segments of the provenance DAG for fine-grained access control to provenance data has not been thoroughly explored. Hence, we take segments of a provenance graph, based on the extended OPM, and defined use a variant of regular expressions, and utilize them in our fine-grained access control language. It can not only return partial graphs to answer access requests but also introduce segments as restrictions in order to screen targeted data.