An advanced access control paradigm evaluating real-time operational context alongside user roles to grant dynamic data access.
Context-Based Access Control (CBAC) extends traditional Role-Based Access Control (RBAC) by evaluating dynamic environmental attributes—such as active shipment assignment, vehicle geolocation, geofence status, and lifecycle stage—before authorizing access to sensitive commercial data.
Enforces sovereign data isolation between competing logistics providers. For example, a carrier can only view telemetry for loads they are actively transporting, and consignees only receive location feeds once the truck enters their dispatch geofence.
Decision rule: Permitted = f(Subject_Role, Object_Shipment, Environment_Context, Geofence_State, Stage_ID). Zero-knowledge redaction applied to carrier pricing and shipper identity.
CBAC does not replace identity authentication (SIWE/OAuth); it governs post-authentication data access rights.