Evaluating the Optimized Implementations of SNOW3G and ZUC on FPGA

SNOW 3G and ZUC are both the heart of secure algorithm sets in 3GPP LTE-Advanced, which is the potential candidate for 4G mobile broadband communication standard. In this paper, we optimize the implementation of the SNOW 3G and ZUC on FPGA, and also evaluate their performance. Our implementation of SNOW 3G reaches a little higher throughput than that of the best commercial IP core. Our optimized implementation of ZUC gives 40% performance improvement, compared with the best reported methods in terms of area-throughput ratio. Especially, compared with the ASIC implementation of ZUC in the most recent work in INDOCRYT 2011, the critical path of our architecture is 20% shorter than theirs. Our evaluation results show that both SNOW 3G and ZUC are flexible to balance different throughput with consumed area.