Abstract The Industrial Internet of Things (IIoT) revolutionizes industrial production using
smart devices (SMDs) deployed in IIoT environments. These SMDs collect and transmit
information from target fields for analysis and can be controlled remotely. In emergency
situations, real-time access to specific SMD information is crucial for prompt actions.
However, ensuring secure and reliable communication between users and SMDs in
untrusted channels is a significant challenge. Privacy concerns and the limitations of existing …