Combined access control model embedding configurable policy for fine grained dat 下载 phpnop 12 0 PDF 2021-02-20 02:02:52 Combined access control model embedding configurable policy for fine-grained data security 立即下载 微信扫一扫:分享 微信里点“发现”,扫一下 二维码便可将本文分享至朋友圈。