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基于映射机制及带信任度的灵活委托授权模型
  • 摘要

    针对现有RBAC委托模型在支持细致委托粒度和权限传播可控性上存在的不足,提出一种基于映射机制及带信任度的灵活角色委托授权模型FDMTPM.该模型基于坐标化与量化算子的复合运算,考虑角色成员关系的动态委托提出模式度量角色的概念,并以其为委托粒度充分考虑广度和深度上的部分委托限制需求;同时引入信任度实现了对角色中具有不同敏感度的权限传播的控制和灵活的委托需求.最后对委托约束机制和撤销机制进行讨论,确保其在多步委托过程中委托能力的收敛性.

  • 作者

    蔡伟鸿  黄日成  梁宁宁  严伟  CAI Wei-hong  HUANG Ri-cheng  LIANG Ning-ning  YAN Wei 

  • 作者单位

    汕头大学工学院计算机系,广东汕头,515063

  • 刊期

    2012年12期 ISTIC PKU

  • 关键词

    访问控制  角色委托模型  映射机制  模式度量角色  信任度 

参考文献
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