des_3.txt

本人从老师那里找到的3DES的算法的源代码

module des_3(sysclk,en,reset,load,mode1,mode2,mode3,datain,key1,key2,key3,ready,dataout);
input[64:1] key1,key2,key3,datain;
input sysclk,en,reset,mode1,mode2,mode3,load;
output ready;
output[64:1] dataout;
wire flagwire1,flagwire2;
wire[64:1] datastream1,datastream2;

DES jia1(.sysclk(sysclk),.en(en),.reset(reset),.mode(mode1),.load(load),.key(key1),.datain(datain),.dataout(datastream1),.reay(),.flag(flagwire1));
DES jie(.sysclk(sysclk),.en(flagwire1),.reset(reset),.mode(mode2),.load(load),.key(key2),.datain(datastream1),.dataout(datastream2),.reay(),.flag(flagwire2));
DES jia2(.sysclk(sysclk),.en(flagwire2),.reset(reset),.mode(mode3),.load(load),.key(key3),.datain(datastream2),.dataout(dataout),.reay(ready),.flag());
endmodule