Abstract
In a smart grid, the power service provider enables the expected power generation amount to be measured according to current power consumption, thus stabilizing the power system. However, the data transmitted over smart grids are not protected, and then suffer from several types of security threats and attacks. Thus, a robust and efficient authentication protocol should be provided to strength the security of smart grid networks. As the Supervisory Control and Data Acquisition system provides the security protection between the control center and substations in most smart grid environments, we focus on how to secure the communications between the substations and smart appliances. Existing security approaches fail to address the performance-security balance. In this study, we suggest a mitigation authentication protocol based on Elliptic Curve Cryptography with privacy protection by using a tamper-resistant device at the smart appliance side to achieve a delicate balance between performance and security of smart grids. The proposed protocol provides some attractive features such as identity protection, mutual authentication and key agreement. Finally, we demonstrate the completeness of the proposed protocol using the Gong-Needham- Yahalom logic.
Highlights
Compared with traditional power networks, smart grid networks can avoid excess electricity generation by adjusting the amount of electricity based on the customer’s real-time requirements
The smart grid network can be divided into three levels: control center, substations and smart appliances [1]
In a smart grid network, smart appliances communicate with substations by using smart meters
Summary
Compared with traditional power networks, smart grid networks can avoid excess electricity generation by adjusting the amount of electricity based on the customer’s real-time requirements. We proposed a robust and efficient authenticate protocol based on Elliptic Curve Cryptography (ECC) with identity protection for smart grids by using tamper-resistant attractive security properties.
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