Enhance Security Mechanism for Securing SCADA Wireless Sensor Network

Supervisory Control and Data Acquisition (SCADA) systems are vital components of most nation’s critical infrastructures. SCADA systems are primarily control systems. They control pipelines, water and transportation systems, utilities, refineries, chemical plants, and a wide variety of manufacturing operations. Sensor networks are becoming increasingly important in various applications such as monitoring, control and inventory to industries and other critical infrastructures. To realize the full potential, these sensor networks require connectivity to the Internet and everything now is adopting the new protocol which we called IPv6 to support mobility. 6Lowpan sensor network for SCADA system facing security vulnerabilities and to address these vulnerabilities, we proposed a cryptosystem for the Transport Layer Security (TLS) Protocol. Elliptic Curve Cryptography (ECC) provides security with smaller key size that is comparable to security provided by RSA or AES with much higher key size. ECC is proven to work in low power sensor devices like 6Lowpan.