%0 Journal Article %A Qiuting Tian %A Dezhi Han %A Yanmei Jiang %T Hierarchical Authority Based Weighted Attribute Encryption Scheme %J Computer Science and Information Systems %D 2019 %V 16 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/CSIS_2019_16_3_a6/ %F CSIS_2019_16_3_a6