New Two-Level µTESLA Protocol for IoT Environments

The Internet of Things (IoT) smart devices enable many applications, such as smart energy, traffic control, water management and environmental sensing in a smart city environment. It provides the end users (individuals and enterprises) the convenience and improved computational and communication capabilities between two devices. Yet the IoT technology is accompanied by security challenges that must be addressed in order to ensure the security and privacy of the network among multiple devices. This is done by using schemes and mechanisms which accommodate the heterogeneous nature of the IoT devices environment, and the resource-constrained nature of some of its components. There have been many efforts to develop authentication protocols such as TESLA protocol. TESLA is a source authentication protocol for the broadcast network. TESLA addresses these challenges, yet it suffers from limitations to its utility and security for IoT environments. The proposed protocol-based TESLA is designed to provide lower computation against a DoS attack. The proposed scheme is using a combination of Multilevel-μTESLA and Inf-TESLA protocols. The benefit of integration between two protocols is to reduce the delay between the sender and the receiver, allows continues authenticating of the message and increasing resistance to DoS attacks. We analysis and discuss in details out proposed protocol TLI- μTESLA.