A lightweight implementation of the Tav-128 hash function

Abstract

In this article we discuss the hardware implementation of a lightweight hash function, named Tav-128 [1], which was purposely designed for constrained devices such as low-cost RFID tags. In the original paper, the authors only provide an estimation of the hardware complexity. Motivated for this, we describe both an ASIC and an FPGA-based implementation of the aforementioned cryptographic primitive, and examine the performance of three architectures optimizing different criteria: area, throughput, and a trade-off between both of them.