Lightweight Strobe Security Libdisco Scheme for IoT-Based Sensor Data

Abstract

Strobe appears to be a promising solution to address some of the challenges associated with securing IoT devices. Its lightweight nature and flexibility make it well-suited for deployment in resource-constrained environments such as microcontrollers and small hardware devices. By providing support for cryptographic primitives and network protocols, Strobe offers a comprehensive framework for securing IoT ecosystems. The support for Schnorr signature variant with an elliptic curve or other group primitives further enhances the security features of Strobe, making it suitable for applications where authentication and integrity are crucial. Furthermore, the lightweight implementation of Strobe is particularly noteworthy, as it addresses the constraints imposed by microcontrollers and small hardware devices. By optimizing resource usage and maximizing efficiency, this implementation ensures that Strobe can be deployed effectively in a wide range of IoT devices without compromising performance or reliability. NFTs have been widely used in blockchain systems to represent unique and irreplaceable assets. Traditional NFTs typically have one identifier representing an asset and ownership by a single entity. This work introduces smart NFTs, tagging IoT devices as Tangible Smart Assets. These devices have blockchain account addresses, establish secure communication channels, and operate in different modes based on their token states. By using Physical Unclonable Functions (PUFs), each smart NFT is securely linked to its IoT device, enabling private key recovery and corresponding blockchain address recovery. This secure pairing ensures trusted hardware and software throughout the device's lifecycle. We will demonstrate this concept using ESP32-based IoT devices and the Ethereum blockchain, utilizing the ESP32's SRAM as the PUF.