ISG-SLAS: Secure and lightweight authentication and key agreement scheme for industrial smart grid using fuzzy extractor

Smart grid (SG) has been received significant attention due to various services such as renewable energy and demand response. However, SG is fragile to various security attacks because an adversary can eavesdrop, insert, delete, or intercept the exchanged messages over an open channel. Thus, secure and lightweight authentication and key agreement (AKA) scheme for SG to ensure the necessary security requirements. Recently, the existing schemes designed a secure and efficient AKA protocol for industrial SG using cryptographic primitives to ensure reliable energy services. However, we prove that existing schemes for industrial SG are vulnerable to potential security attacks and do not guarantee the necessary security requirements. To enhance the security flaws of the existing schemes, we design a secure and lightweight AKA scheme for SG using fuzzy extractor, called ISG-SLAS. ISG-SLAS resists various security attacks and provides security functionalities. We evaluate the security of the ISG-SLAS using ROR model and AVISPA simulation. Moreover, we present the testbed experiments using MIRACL based on Raspberry PI 4. We then present a comparative analysis between ISG-SLAS and related schemes. Consequently, ISG-SLAS better ensures security and efficiency compared with related schemes and is more suitable than related schemes for practical SG.