On the Parallelization of the MICKEY-128 2.0 Stream Cipher

The increasingly widespread use of electronic devices necessitates efficient stream ciphers providing high-throughput encryption with minimal resource usage. MICKEY-128 2.0 is a recent hardware-oriented synchronous stream cypher with a 128-bit key, proposed to the ECRYPT Stream Cipher Project. Using a novel mathematical interpretation of the algorithm, we present a method of parallelizing the stream cipher to produce an n-bit keystream output. We demonstrate a high-throughput (560 Mbps), area-efficient (392 slices) two-way parallelized implementation on the Xilinx Virtex-II Pro FPGA.