Compact FPGA implementation of Camellia

Abstract

We present the smallest FPGA implementation of Camellia for 128-bit key length to date. This architecture was designed for low area and low power applications. Through specific optimizations such as shift registers for storing and scheduling key, distributed RAM for storing data, we achieved compact implementation using only 318 slices at a throughput of 18.41 Mbps on the smallest Xilinx Spartan-3 XC3S50-5 device.