此课件是基于FPGA的加密芯片设计实例，DES的FPGA实现，包括DES加密算法简述，DES的伪代码描述，设计流程，运算电路模型设计，算法程序设计 -The courseware is based on the FPGA chip design example of encryption, DES for FPGA implementation, including the DES encryption algorithm briefly, DES pseudo-code descr ipt

This is verilog source code for DES(Data Encryption standard) which is used in network security.