ARIS: Authentication for Real-Time IoT Systems
This work addresses the need for low-latency and energy-efficient authentication in critical IoT applications like energy delivery systems and battery-powered drones, representing a strong specific gain rather than a broad paradigm shift.
The paper tackles the problem of efficient authentication for real-time IoT systems with strict delay requirements, proposing the ARIS signature scheme that achieves verification of 83,333 signatures per second on commodity hardware while offering the fastest generation, lowest energy consumption, and minimal delay among existing methods.
Efficient authentication is vital for IoT applications with stringent minimum-delay requirements (e.g., energy delivery systems). This requirement becomes even more crucial when the IoT devices are battery-powered, like small aerial drones, and the efficiency of authentication directly translates to more operation time. Although some fast authentication techniques have been proposed, some of them might not fully meet the needs of the emerging delay-aware IoT. In this paper, we propose a new signature scheme called ARIS that pushes the limits of the existing digital signatures, wherein commodity hardware can verify 83,333 signatures per second. ARIS also enables the fastest signature generation along with the lowest energy consumption and end-to-end delay among its counterparts. These significant computational advantages come with a larger storage requirement, which is a highly favorable trade-off for some critical delay-aware applications. These desirable features are achieved by harnessing message encoding with cover-free families and special elliptic curve based one-way function. We prove the security of ARIS under the hardness of the elliptic curve discrete logarithm problem in the random oracle model. We provide an open-sourced implementation of ARIS on commodity hardware and 8-bit AVR microcontroller for public testing and verification.