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Efficient authentication is vital for IoT applications with stringentminimum-delay requirements (e.g., energy delivery systems). This requirementbecomes even more crucial when the IoT devices are battery-powered, like smallaerial drones, and the efficiency of authentication directly translates to moreoperation time. Although some fast authentication techniques have beenproposed, some of them might not fully meet the needs of the emergingdelay-aware IoT.  In this paper, we propose a new signature scheme called ARIS that pushes thelimits of the existing digital signatures, wherein commodity hardware canverify 83,333 signatures per second. ARIS also enables the fastest signaturegeneration along with the lowest energy consumption and end-to-end delay amongits counterparts. These significant computational advantages come with a largerstorage requirement, which is a highly favorable trade-off for some criticaldelay-aware applications. These desirable features are achieved by harnessingmessage encoding with cover-free families and special elliptic curve basedone-way function. We prove the security of ARIS under the hardness of theelliptic curve discrete logarithm problem in the random oracle model. Weprovide an open-sourced implementation of ARIS on commodity hardware and 8-bitAVR microcontroller for public testing and verification.

ARIS: Authentication for Real-Time IoT Systems