Research and Design of Reconfigurable Composite Field Multiplication in Symmetric Cipher Algorithms  

作　　者：SU Yang ZHANG Mingshu YANG Kai 

机构地区：[1]Key Laboratory of Information Security, Engineering University of Chinese People's Armed Police Force

出　　处：《Wuhan University Journal of Natural Sciences》2016年第3期235-241,共7页武汉大学学报（自然科学英文版）

基　　金：Supported by the National Natural Science Foundation of China(61202492,61309022,61309008);the Natural Science Foundation for Young of Shaanxi Province(2013JQ8013)

摘　　要：The composite field multiplication is an important and complex module in symmetric cipher algorithms, and its realization performance directly restricts the processing speed of symmetric cipher algorithms. Based on the characteristics of composite field multiplication in symmetric cipher algorithms and the realization principle of its reconfigurable architectures, this paper describes the reconfigurable composite field multiplication over GF（（2^8）k） （k=1,2,3,4） in RISC （reduced instruction set computer） processor and VLIW （very long instruction word） processor architecture, respectively. Through configuration, the architectures can realize the composite field multiplication over GF（2^8）, GF （（2^8）2）, GF（（28）3） and GF（（28）4） flexibly and efficiently. We simulated the function of circuits and synthesized the reconfigurable design based on the 0.18 μm CMOS （complementary metal oxide semiconductor） standard cell library and the comparison with other same kind designs. The result shows that the reconfigurable design proposed in the paper can provide higher efficiency under the premise of flexibility.The composite field multiplication is an important and complex module in symmetric cipher algorithms, and its realization performance directly restricts the processing speed of symmetric cipher algorithms. Based on the characteristics of composite field multiplication in symmetric cipher algorithms and the realization principle of its reconfigurable architectures, this paper describes the reconfigurable composite field multiplication over GF（（2^8）k） （k=1,2,3,4） in RISC （reduced instruction set computer） processor and VLIW （very long instruction word） processor architecture, respectively. Through configuration, the architectures can realize the composite field multiplication over GF（2^8）, GF （（2^8）2）, GF（（28）3） and GF（（28）4） flexibly and efficiently. We simulated the function of circuits and synthesized the reconfigurable design based on the 0.18 μm CMOS （complementary metal oxide semiconductor） standard cell library and the comparison with other same kind designs. The result shows that the reconfigurable design proposed in the paper can provide higher efficiency under the premise of flexibility.

关 键 词：RECONFIGURABLE composite field multiplication symmetric cipher algorithm RISC VLIW （very long instruction word） 

分 类 号：TP391.6[自动化与计算机技术—计算机应用技术]