【摘要】 无线局域网产品使用的SMS4密码算法是国内官方公布的第一个商用加密算法。针对用FPGA硬件实现的SMS4分组密码算法电路,分别提出了SMS4商用密码算法的2种实现方案,基于FPGA实现了该加解密算法,并通过仿真验证了算法的正确性。通过对2种实现方案比较,对运行速度和芯片逻辑资源进行了分析,可知由于采用内部流水线的实现方式,采用2级流水线方式生成Xi+4信号,相对全循环实现方法性能优越,具有较高的运行速度和较小的实现面积。更多还原

【Abstract】 SMS4 algorithm that has been used in wireless LAN is the first commercial algorithm published by the government.This paper points out two commercial cryptographic algorithm implementations of SMS4 and the FPGA-based implementation of encryption and decryption algorithms.Simulation results show the correctness of the algorithms.According to the comparison of speed and logic resources,the implementation using internal pipeline adopts the way of 2-stage pipeline to generate Xi+4 and achieves superior performance than the full cycle implementation.更多还原