@article{CSIS_2019_16_3_a8,
     author = {Xixi Yan and Hao Ni and Yuan Liu and Dezhi Han},
     title = {Privacy-preserving {Multi-authority} {Attribute-based} {Encryption} with {Dynamic} {Policy} {Updating} in {PHR}},
     journal = {Computer Science and Information Systems},
     publisher = {mathdoc},
     volume = {16},
     number = {3},
     year = {2019},
     url = {http://geodesic.mathdoc.fr/item/CSIS_2019_16_3_a8/}
}