TY - JOUR AU - Qiuting Tian AU - Dezhi Han AU - Yanmei Jiang TI - Hierarchical Authority Based Weighted Attribute Encryption Scheme JO - Computer Science and Information Systems PY - 2019 VL - 16 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CSIS_2019_16_3_a6/ ID - CSIS_2019_16_3_a6 ER -