On the Suitability of Dissemination-centric Access Control Systems for Group-centric Sharing

ABSTRACT The Group-centric Secure Information Sharing (g-SIS) family of models has been proposed for modeling environments in which group dynamics dictate information-sharing policies and practices. This is in contrast to traditional, dissemination-centric sharing models, which focus on attaching policies to resources that limit their flow from producer to consumer. The creators of g-SIS speculate that it may not be strictly more expressive than dissemination-centric models, but that it nevertheless has pragmatic efficiency advantages in group-centric scenario