The Research and Design of Parallel Instruction Targeted at ubstitution Boz
Based on the analysis of 41 popular block ciphers,we research the characteristics of conventional substitution boxes,and then analyze the realization methods of the substitution box. A efficient and flexible specific instruction is proposed,which can execute four kinds S-boxes substitution including 4-4,6-4,8-8,8-32, and perform operation on different pages.Besides,it can meet the various demands of different rounds in encryption or decryption,and can execute eight groups 4-4 substitution operations in parallel,or four groups 8-8,or eight groups 6-4,or one group 8-32 in parallel. Furthermore,we extend the usage of special instruction to the VLIW structure,and then design the hardware module of the substitution box.Finally,the hardware module is fabricated on 0.18/um CMOS process.Computed with other instruction design,it can flexibly and effectively realize the operation of substitution box.
Block ciphers Substitution boz Look up table VLIW Instruction
Zibin Dai Wei Li Tao Meng Tao Chen
Institute of Information Technology,Zhengzhou 450004,China
国际会议
2009 IEEE 8th International Conference on ASIC(第八届IEEE国际专用集成电路大会)
长沙
英文
155-158
2009-10-20（万方平台首次上网日期，不代表论文的发表时间）