A security mechanism for automation control in PLC-based networks

In power line networks, the metering and control data can be modified by malicious attacker. We can expect that an attacker may be able to eavesdrop the transmission data, and may be able to send modified data to device for control system. This aspect is especially important if data should be used for billing or other power control purpose. In this paper, we propose a security provider using the encryption, key generation and authentication algorithm for automation system in PLC-based network. To prove the necessity and the efficiency of the proposed security mechanism, we have organized the automation metering system.