A proxy signcryption scheme for secure sharing of industrial IoT data in fog environment

Rapid technical advancements have transformed the industrial segment. The internet limits the meaning of industrial IoT (IIoT) to the production Industry, which is Industry 4.0. IIoT includes sensors, positioners, and actuators. As a result, various forms of data is produced. Due to delays and safety issues, most industrial processes must be completed locally before data sent to cloud. Fog computing's localised data processing makes it a suitable mediator. Industrial data is regularly shared among different applications for analysis, decision-making, and research. Here, we proposed an ECC-based proxy signcryption for IIoT (ECC-PSC-IIoT) in a fog computing environment. The proposed scheme is providing the features of signature and encryption in a single cycle to active the basic requirements of low computation and communication cost. The ECC-PSC-IIoT is proven to be secured by using AVISPA tool. Moreover, extensive performance assessment indicates the competency of the proposed scheme with respect to computation and communication time.