KASUMI is a block cipher that forms the heart of the 3GPP confidentiality algorithm f8, and the 3GPP integrity algorithm f9. This paper presents a hardware-based high-performance field programmable gate array implementation of the KASUMI algorithm. Our KASUMI implementation uses pipeline techniques and a field programmable gate array device, and outperforms previous published KASUMI implementations in terms both of clock frequency and of throughput. KASUMI is a block cipher that forms the heart of the 3GPP confidentiality algorithm f8, and the 3GPP integrity algorithm f9. This paper presents a hardware-based high-performance field programmable gate array implementation of the KASUMI algorithm. Our KASUMI implementation uses pipeline techniques and a field programmable gate array device, and outperforms previous published KASUMI implementations in terms both of clock frequency and of throughput.