An Authorization Management Approach in the Internet of Things

摘要

Inherited the flexibility merit of the access control model based on attribute (ABAC), the authorization model based on attribute delegation in the Internet of Things (IADAM) is presented, the attribute set with attribute expression in the mode is expressed, and the method based on attribute delegation directly to assign and transmit the permission are adopted. Complied with the constraint the mechanism of atomic authorization and the simplest authorization attributes in delegation strictly, searching along opposite direction of the authorization chain, trusted authorization source can be found, so final attribute set possessed by requestor is trusted. According to the analysis, the model has the characters of better security and flexibility, which suitable for the Internet of Things.