TY - Computer Engineering and Applications A1 - ZHANG Sai, YANG Geng, HAN Yamei, TU Yuanfei T1 - Attribute-based hierarchical access control with hidden policy supporting attribute revocation Y1 - 2017-02-15 JF - Computer Engineering and Applications JO - Computer Engineering and Applications SP - 51 EP - 58 VL - 53 IS - 4 UR - http://cea.ceaj.org N1 - 10.3778/j.issn.1002-8331.1506-0162 ER -