Interoperable Access Control Framework for Services Demanding High Level Security among Heterogeneous IoT Platforms

As IoT technology is applied to various fields, many IoT platforms are being developed to provide connections between numerous services and users. However, this diversity and heterogeneity can limit interoperability. Users on different platforms cannot be authenticated because IoT platforms have different representations and data formats for the same resource and do not understand each other's data models. In addition, users on other platforms cannot grant permissions because they do not understand the policies and required attribute values of other platforms. To solve these problems, this study proposes a framework focusing on access control, such as authentication and authorization for resource use between various IoT platforms.