全程手撕AES加密（verilog）
以下部分截图若涉及侵权，及时联系，随时撤销！
关于AES的原理我不多叙述，博客众多大佬比我厉害的多，该篇文章仅用来纪念自己的学习过程以及分享代码参考，毕竟有关这个AES的verilog代码基本都要付费下载，在我这不需要哈哈。
学习历程
设计中遇到的问题
列混合中涉及到的不是普通的矩阵相乘，而是满足以下公式：
密钥扩展要注意或非数：
AES代码大致流程
现在到了大家最想要的部分代码！！！
程序代码：
module AES(//cyx
mingwen00,mingwen01,mingwen02,mingwen03,
mingwen10,mingwen11,mingwen12,mingwen13,
mingwen20,mingwen21,mingwen22,mingwen23,
mingwen30,mingwen31,mingwen32,mingwen33,
clk,rst_n,
miyao00,miyao01,miyao02,miyao03,
miyao10,miyao11,miyao12,miyao13,
miyao20,miyao21,miyao22,miyao23,
miyao30,miyao31,miyao32,miyao33,
key,
miwen00,miwen01,miwen02,miwen03,
miwen10,miwen11,miwen12,miwen13,
miwen20,miwen21,miwen22,miwen23,
miwen30,miwen31,miwen32,miwen33);
input [7:0] mingwen00,mingwen01,mingwen02,mingwen03;
input [7:0] mingwen10,mingwen11,mingwen12,mingwen13;
input [7:0] mingwen20,mingwen21,mingwen22,mingwen23;
input [7:0] mingwen30,mingwen31,mingwen32,mingwen33;
input clk;
input rst_n;
input [7:0] miyao00,miyao01,miyao02,miyao03;
input [7:0] miyao10,miyao11,miyao12,miyao13;
input [7:0] miyao20,miyao21,miyao22,miyao23;
input [7:0] miyao30,miyao31,miyao32,miyao33;
input key;
output reg [7:0] miwen00,miwen01,miwen02,miwen03;
output reg [7:0] miwen10,miwen11,miwen12,miwen13;
output reg [7:0] miwen20,miwen21,miwen22,miwen23;
output reg [7:0] miwen30,miwen31,miwen32,miwen33;
reg [7:0] miyaox00,miyaox01,miyaox02,miyaox03;
reg [7:0] miyaox10,miyaox11,miyaox12,miyaox13;
reg [7:0] miyaox20,miyaox21,miyaox22,miyaox23;
reg [7:0] miyaox30,miyaox31,miyaox32,miyaox33;
reg [7:0] x00, x01, x02, x03;
reg [7:0] x10, x11, x12, x13;
reg [7:0] x20, x21, x22, x23;
reg [7:0] x30, x31, x32, x33;
reg [7:0] cyx;
reg [127:0] x;
reg [127:0] s_2;
reg [7:0] i;
reg [7:0] i_2;
reg [7:0] j;
reg [7:0] c;
reg [7:0] d;
reg [7:0] k;
reg [7:0] p1,p2,p3,p4,p5,p6,p7,p8,p9,p10,p11,p12,p13,p14,p15,p16;
reg [7:0] s00,s01,s02,s03,s10,s11,s12,s13,s20,s21,s22,s23,s30,s31,s32,s33;
reg [7:0] s00_2,s01_2,s02_2,s03_2,s10_2,s11_2,s12_2,s13_2,s20_2,s21_2,s22_2,s23_2,s30_2,s31_2,s32_2,s33_2;
reg [7:0] s00_3,s01_3,s02_3,s03_3,s10_3,s11_3,s12_3,s13_3,s20_3,s21_3,s22_3,s23_3,s30_3,s31_3,s32_3,s33_3;
reg [7:0] m00, m01, m02, m03;//cyx
reg [7:0] m10, m11, m12, m13;//cyx
reg [7:0] m20, m21, m22, m23;//cyx
reg [7:0] m30, m31, m32, m33;//cyx
reg [7:0] mm0, mm1, mm2, mm3;//cyx
reg [31:0] mm;
reg [7:0] jj;
reg [7:0] rcon;
always@(posedge clk or negedge rst_n)
begin
if(!rst_n)
begin
i<=0;
i_2<=0;
miwen00<=0; miwen01<=0; miwen02<=0; miwen03<=0;
miwen10<=0; miwen11<=0; miwen12<=0; miwen13<=0;
miwen20<=0; miwen21<=0; miwen22<=0; miwen23<=0;
miwen30<=0; miwen31<=0; miwen32<=0; miwen33<=0;
miyaox00<=0;miyaox01<=0;miyaox02<=0;miyaox03<=0;
miyaox10<=0;miyaox11<=0;miyaox12<=0;miyaox13<=0;
miyaox20<=0;miyaox21<=0;miyaox22<=0;miyaox23<=0;
miyaox30<=0;miyaox31<=0;miyaox32<=0;miyaox33<=0;
x00<=0; x01<=0; x02<=0; x03<=0;
x10<=0; x11<=0; x12<=0; x13<=0;
x20<=0; x21<=0; x22<=0; x23<=0;
x30<=0; x31<=0; x32<=0; x33<=0;
p1<=0; p2<=0; p3<=0; p4<=0;
p5<=0; p6<=0; p7<=0; p8<=0;
p9<=0; p10<=0; p11<=0; p12<=0;
p13<=0; p14<=0; p15<=0; p16<=0;
s00<=0; s01<=0; s02<=0; s03<=0;
s10<=0; s11<=0; s12<=0; s13<=0;
s20<=0; s21<=0; s22<=0; s23<=0;
s30<=0; s31<=0; s32<=0; s33<=0;
s00_2<=0; s01_2<=0; s02_2<=0; s03_2<=0;
s10_2<=0; s11_2<=0; s12_2<=0; s13_2<=0;
s20_2<=0; s21_2<=0; s22_2<=0; s23_2<=0;
s30_2<=0; s31_2<=0; s32_2<=0; s33_2<=0;
s00_3<=0; s01_3<=0; s02_3<=0; s03_3<=0;
s10_3<=0; s11_3<=0; s12_3<=0; s13_3<=0;
s20_3<=0; s21_3<=0; s22_3<=0; s23_3<=0;
s30_3<=0; s31_3<=0; s32_3<=0; s33_3<=0;
m00<=0; m01<=0; m02<=0; m03<=0;
m10<=0; m11<=0; m12<=0; m13<=0;
m20<=0; m21<=0; m22<=0; m23<=0;
m30<=0; m31<=0; m32<=0; m33<=0;
mm0<=0; mm1<=0; mm2<=0; mm3<=0;
mm<=0;
jj<=0;
rcon<=0;
c<=0;
d<=0;
k<=0;
x<=0;
s_2<=0;
end
else
begin
if(key==1)
begin
case(i)
0://chu shi bian huan(initial round)
begin
x00<=mingwen00^miyao00; x01<=mingwen01^miyao01; x02<=mingwen02^miyao02; x03<=mingwen03^miyao03;
x10<=mingwen10^miyao10; x11<=mingwen11^miyao11; x12<=mingwen12^miyao12; x13<=mingwen13^miyao13;
x20<=mingwen20^miyao20; x21<=mingwen21^miyao21; x22<=mingwen22^miyao22; x23<=mingwen23^miyao23;
x30<=mingwen30^miyao30; x31<=mingwen31^miyao31; x32<=mingwen32^miyao32; x33<=mingwen33^miyao33;
miyaox00<=miyao00;miyaox01<=miyao01;miyaox02<=miyao02;miyaox03<=miyao03;
miyaox10<=miyao10;miyaox11<=miyao11;miyaox12<=miyao12;miyaox13<=miyao13;
miyaox20<=miyao20;miyaox21<=miyao21;miyaox22<=miyao22;miyaox23<=miyao23;
miyaox30<=miyao30;miyaox31<=miyao31;miyaox32<=miyao32;miyaox33<=miyao33;
i<=1;
end
1://zi jie bian hua(subbytes)
begin
x = {x00, x01, x02, x03,
x10, x11, x12, x13,
x20, x21, x22, x23,
x30, x31, x32, x33};
j=0;i=2;
end
2:
begin
while(j<16)
begin
c = x[8*j+7-:8];
case(c)
8'h00: d=8'h63; 8'h01: d=8'h7c; 8'h02: d=8'h77; 8'h03: d=8'h7b; 8'h04: d=8'hf2; 8'h05: d=8'h6b; 8'h06: d=8'h6f; 8'h07: d=8'hc5; 8'h08: d=8'h30; 8'h09: d=8'h01; 8'h0a: d=8'h67; 8'h0b: d=8'h2b; 8'h0c: d=8'hfe; 8'h0d: d=8'hd7; 8'h0e: d=8'hab; 8'h0f: d=8'h76;
8'h10: d=8'hca; 8'h11: d=8'h82; 8'h12: d=8'hc9; 8'h13: d=8'h7d; 8'h14: d=8'hfa; 8'h15: d=8'h59; 8'h16: d=8'h47; 8'h17: d=8'hf0; 8'h18: d=8'had; 8'h19: d=8'hd4; 8'h1a: d=8'ha2; 8'h1b: d=8'haf; 8'h1c: d=8'h9c; 8'h1d: d=8'ha4; 8'h1e: d=8'h72; 8'h1f: d=8'hc0;
8'h20: d=8'hb7; 8'h21: d=8'hfd; 8'h22: d=8'h93; 8'h23: d=8'h26; 8'h24: d=8'h36; 8'h25: d=8'h3f; 8'h26: d=8'hf7; 8'h27: d=8'hcc; 8'h28: d=8'h34; 8'h29: d=8'ha5; 8'h2a: d=8'he5; 8'h2b: d=8'hf1; 8'h2c: d=8'h71; 8'h2d: d=8'hd8; 8'h2e: d=8'h31; 8'h2f: d=8'h15;
8'h30: d=8'h04; 8'h31: d=8'hc7; 8'h32: d=8'h23; 8'h33: d=8'hc3; 8'h34: d=8'h18; 8'h35: d=8'h96; 8'h36: d=8'h05; 8'h37: d=8'h9a; 8'h38: d=8'h07; 8'h39: d=8'h12; 8'h3a: d=8'h80; 8'h3b: d=8'he2; 8'h3c: d=8'heb; 8'h3d: d=8'h27; 8'h3e: d=8'hb2; 8'h3f: d=8'h75;
8'h40: d=8'h09; 8'h41: d=8'h83; 8'h42: d=8'h2c; 8'h43: d=8'h1a; 8'h44: d=8'h1b; 8'h45: d=8'h6e; 8'h46: d=8'h5a; 8'h47: d=8'ha0; 8'h48: d=8'h52; 8'h49: d=8'h3b; 8'h4a: d=8'hd6; 8'h4b: d=8'hb3; 8'h4c: d=8'h29; 8'h4d: d=8'he3; 8'h4e: d=8'h2f; 8'h4f: d=8'h84;
8'h50: d=8'h53; 8'h51: d=8'hd1; 8'h52: d=8'h00; 8'h53: d=8'hed; 8'h54: d=8'h20; 8'h55: d=8'hfc; 8'h56: d=8'hb1; 8'h57: d=8'h5b; 8'h58: d=8'h6a; 8'h59: d=8'hcb; 8'h5a: d=8'hbe; 8'h5b: d=8'h39; 8'h5c: d=8'h4a; 8'h5d: d=8'h4c; 8'h5e: d=8'h58; 8'h5f: d=8'hcf;
8'h60: d=8'hd0; 8'h61: d=8'hef; 8'h62: d=8'haa; 8'h63: d=8'hfb; 8'h64: d=8'h43; 8'h65: d=8'h4d; 8'h66: d=8'h33; 8'h67: d=8'h85; 8'h68: d=8'h45; 8'h69: d=8'hf9; 8'h6a: d=8'h02; 8'h6b: d=8'h7f; 8'h6c: d=8'h50; 8'h6d: d=8'h3c; 8'h6e: d=8'h9f; 8'h6f: d=8'ha8;
8'h70: d=8'h51; 8'h71: d=8'ha3; 8'h72: d=8'h40; 8'h73: d=8'h8f; 8'h74: d=8'h92; 8'h75: d=8'h9d; 8'h76: d=8'h38; 8'h77: d=8'hf5; 8'h78: d=8'hbc; 8'h79: d=8'hb6; 8'h7a: d=8'hda; 8'h7b: d=8'h21; 8'h7c: d=8'h10; 8'h7d: d=8'hff; 8'h7e: d=8'hf3; 8'h7f: d=8'hd2;
8'h80: d=8'hcd; 8'h81: d=8'h0c; 8'h82: d=8'h13; 8'h83: d=8'hec; 8'h84: d=8'h5f; 8'h85: d=8'h97; 8'h86: d=8'h44; 8'h87: d=8'h17; 8'h88: d=8'hc4; 8'h89: d=8'ha7; 8'h8a: d=8'h7e; 8'h8b: d=8'h3d; 8'h8c: d=8'h64; 8'h8d: d=8'h5d; 8'h8e: d=8'h19; 8'h8f: d=8'h73;
8'h90: d=8'h60; 8'h91: d=8'h81; 8'h92: d=8'h4f; 8'h93: d=8'hdc; 8'h94: d=8'h22; 8'h95: d=8'h2a; 8'h96: d=8'h90; 8'h97: d=8'h88; 8'h98: d=8'h46; 8'h99: d=8'hee; 8'h9a: d=8'hb8; 8'h9b: d=8'h14; 8'h9c: d=8'hde; 8'h9d: d=8'h5e; 8'h9e: d=8'h0b; 8'h9f: d=8'hdb;
8'ha0: d=8'he0; 8'ha1: d=8'h32; 8'ha2: d=8'h3a; 8'ha3: d=8'h0a; 8'ha4: d=8'h49; 8'ha5: d=8'h06; 8'ha6: d=8'h24; 8'ha7: d=8'h5c; 8'ha8: d=8'hc2; 8'ha9: d=8'hd3; 8'haa: d=8'hac; 8'hab: d=8'h62; 8'hac: d=8'h91; 8'had: d=8'h95; 8'hae: d=8'he4; 8'haf: d=8'h79;
8'hb0: d=8'he7; 8'hb1: d=8'hc8; 8'hb2: d=8'h37; 8'hb3: d=8'h6d; 8'hb4: d=8'h8d; 8'hb5: d=8'hd5; 8'hb6: d=8'h4e; 8'hb7: d=8'ha9; 8'hb8: d=8'h6c; 8'hb9: d=8'h56; 8'hba: d=8'hf4; 8'hbb: d=8'hea; 8'hbc: d=8'h65; 8'hbd: d=8'h7a; 8'hbe: d=8'hae; 8'hbf: d=8'h08;
8'hc0: d=8'hba; 8'hc1: d=8'h78; 8'hc2: d=8'h25; 8'hc3: d=8'h2e; 8'hc4: d=8'h1c; 8'hc5: d=8'ha6; 8'hc6: d=8'hb4; 8'hc7: d=8'hc6; 8'hc8: d=8'he8; 8'hc9: d=8'hdd; 8'hca: d=8'h74; 8'hcb: d=8'h1f; 8'hcc: d=8'h4b; 8'hcd: d=8'hbd; 8'hce: d=8'h8b; 8'hcf: d=8'h8a;
8'hd0: d=8'h70; 8'hd1: d=8'h3e; 8'hd2: d=8'hb5; 8'hd3: d=8'h66; 8'hd4: d=8'h48; 8'hd5: d=8'h03; 8'hd6: d=8'hf6; 8'hd7: d=8'h0e; 8'hd8: d=8'h61; 8'hd9: d=8'h35; 8'hda: d=8'h57; 8'hdb: d=8'hb9; 8'hdc: d=8'h86; 8'hdd: d=8'hc1; 8'hde: d=8'h1d; 8'hdf: d=8'h9e;
8'he0: d=8'he1; 8'he1: d=8'hf8; 8'he2: d=8'h98; 8'he3: d=8'h11; 8'he4: d=8'h69; 8'he5: d=8'hd9; 8'he6: d=8'h8e; 8'he7: d=8'h94; 8'he8: d=8'h9b; 8'he9: d=8'h1e; 8'hea: d=8'h87; 8'heb: d=8'he9; 8'hec: d=8'hce; 8'hed: d=8'h55; 8'hee: d=8'h28; 8'hef: d=8'hdf;
8'hf0: d=8'h8c; 8'hf1: d=8'ha1; 8'hf2: d=8'h89; 8'hf3: d=8'h0d; 8'hf4: d=8'hbf; 8'hf5: d=8'he6; 8'hf6: d=8'h42; 8'hf7: d=8'h68; 8'hf8: d=8'h41; 8'hf9: d=8'h99; 8'hfa: d=8'h2d; 8'hfb: d=8'h0f; 8'hfc: d=8'hb0; 8'hfd: d=8'h54; 8'hfe: d=8'hbb; 8'hff: d=8'h16;
endcase
x[8*j+7-:8] = d;
j=j+1;
end
x00=x[127:120]; x01=x[119:112]; x02=x[111:104]; x03=x[103:96];
x10=x[95:88]; x11=x[87:80]; x12=x[79:72]; x13=x[71:64];
x20=x[63:56]; x21=x[55:48]; x22=x[47:40]; x23=x[39:32];
x30=x[31:24]; x31=x[23:16]; x32=x[15:8]; x33=x[7:0];
i=3;
end
3://hang yi wei(shiftrows)
begin
//save
p1<=x00; p5<=x01; p9<=x02; p13<=x03;
p2<=x10; p6<=x11; p10<=x12; p14<=x13;
p3<=x20; p7<=x21; p11<=x22; p15<=x23;
p4<=x30; p8<=x31; p12<=x32; p16<=x33;
i<=4;
end
4://hang yi wei(shiftrows)
begin
x00=p1; x01=p5; x02=p9; x03=p13;//1 no change
x10=p6; x11=p10; x12=p14; x13=p2;//2<<1
x20=p11; x21=p15; x22=p3; x23=p7;//3<<2
x30=p16; x31=p4; x32=p8; x33=p12;//4<<3
k=k+1;
if(k<10)
begin
i=5;
end
else
begin
i=8;
end
end
5://lie hun he(mixcolumns)
begin
//save
s00<=x00;s01<=x01;s02<=x02;s03<=x03;
s10<=x10;s11<=x11;s12<=x12;s13<=x13;
s20<=x20;s21<=x21;s22<=x22;s23<=x23;
s30<=x30;s31<=x31;s32<=x32;s33<=x33;
s_2<={x00,x01,x02,x03,
x10,x11,x12,x13,
x20,x21,x22,x23,
x30,x31,x32,x33};
i<=6;
i_2<=0;
end
6:
begin
while(i_2<16)
begin
if((s_2[8*i_2+7])==0)
begin
s_2[8*i_2+7-:8]={s_2[8*i_2+6-:7],1'b0};
end
else
begin
s_2[8*i_2+7-:8]=({s_2[8*i_2+6-:7],1'b0})^(8'b0001_1011);
end
i_2=i_2+1;
end
s00_2=s_2[127:120]; s01_2=s_2[119:112]; s02_2=s_2[111:104]; s03_2=s_2[103:96];
s10_2=s_2[95:88]; s11_2=s_2[87:80]; s12_2=s_2[79:72]; s13_2=s_2[71:64];
s20_2=s_2[63:56]; s21_2=s_2[55:48]; s22_2=s_2[47:40]; s23_2=s_2[39:32];
s30_2=s_2[31:24]; s31_2=s_2[23:16]; s32_2=s_2[15:8]; s33_2=s_2[7:0];
s00_3=s00_2^s00; s01_3=s01_2^s01; s02_3=s02_2^s02; s03_3=s03_2^s03;
s10_3=s10_2^s10; s11_3=s11_2^s11; s12_3=s12_2^s12; s13_3=s13_2^s13;
s20_3=s20_2^s20; s21_3=s21_2^s21; s22_3=s22_2^s22; s23_3=s23_2^s23;
s30_3=s30_2^s30; s31_3=s31_2^s31; s32_3=s32_2^s32; s33_3=s33_2^s33;
i=7;
end
7://lie hun he(mixcolumns)
begin
//cal
x00<=(s00_2)^(s10_3)^(s20)^(s30);
x01<=(s01_2)^(s11_3)^(s21)^(s31);
x02<=(s02_2)^(s12_3)^(s22)^(s32);
x03<=(s03_2)^(s13_3)^(s23)^(s33);//row 0
x10<=(s00)^(s10_2)^(s20_3)^(s30);
x11<=(s01)^(s11_2)^(s21_3)^(s31);
x12<=(s02)^(s12_2)^(s22_3)^(s32);
x13<=(s03)^(s13_2)^(s23_3)^(s33);//row 1
x20<=(s00)^(s10)^(s20_2)^(s30_3);
x21<=(s01)^(s11)^(s21_2)^(s31_3);
x22<=(s02)^(s12)^(s22_2)^(s32_3);
x23<=(s03)^(s13)^(s23_2)^(s33_3);//row 2
x30<=(s00_3)^(s10)^(s20)^(s30_2);
x31<=(s01_3)^(s11)^(s21)^(s31_2);
x32<=(s02_3)^(s12)^(s22)^(s32_2);
x33<=(s03_3)^(s13)^(s23)^(s33_2);//row 3
i<=8;
end
8://mi yao kuo zhan
begin
//save
m00<=miyaox00; m01<=miyaox01; m02<=miyaox02; m03<=miyaox03;
m10<=miyaox10; m11<=miyaox11; m12<=miyaox12; m13<=miyaox13;
m20<=miyaox20; m21<=miyaox21; m22<=miyaox22; m23<=miyaox23;
m30<=miyaox30; m31<=miyaox31; m32<=miyaox32; m33<=miyaox33;
i<=9;
jj<=0;
end
9://mi yao kuo zhan
begin
mm0=m13;
mm1=m23;
mm2=m33;
mm3=m03;
mm={mm0,mm1,mm2,mm3};
while(jj<4)
begin
c = mm[8*jj+7-:8];
case(c)
8'h00: d=8'h63; 8'h01: d=8'h7c; 8'h02: d=8'h77; 8'h03: d=8'h7b; 8'h04: d=8'hf2; 8'h05: d=8'h6b; 8'h06: d=8'h6f; 8'h07: d=8'hc5; 8'h08: d=8'h30; 8'h09: d=8'h01; 8'h0a: d=8'h67; 8'h0b: d=8'h2b; 8'h0c: d=8'hfe; 8'h0d: d=8'hd7; 8'h0e: d=8'hab; 8'h0f: d=8'h76;
8'h10: d=8'hca; 8'h11: d=8'h82; 8'h12: d=8'hc9; 8'h13: d=8'h7d; 8'h14: d=8'hfa; 8'h15: d=8'h59; 8'h16: d=8'h47; 8'h17: d=8'hf0; 8'h18: d=8'had; 8'h19: d=8'hd4; 8'h1a: d=8'ha2; 8'h1b: d=8'haf; 8'h1c: d=8'h9c; 8'h1d: d=8'ha4; 8'h1e: d=8'h72; 8'h1f: d=8'hc0;
8'h20: d=8'hb7; 8'h21: d=8'hfd; 8'h22: d=8'h93; 8'h23: d=8'h26; 8'h24: d=8'h36; 8'h25: d=8'h3f; 8'h26: d=8'hf7; 8'h27: d=8'hcc; 8'h28: d=8'h34; 8'h29: d=8'ha5; 8'h2a: d=8'he5; 8'h2b: d=8'hf1; 8'h2c: d=8'h71; 8'h2d: d=8'hd8; 8'h2e: d=8'h31; 8'h2f: d=8'h15;
8'h30: d=8'h04; 8'h31: d=8'hc7; 8'h32: d=8'h23; 8'h33: d=8'hc3; 8'h34: d=8'h18; 8'h35: d=8'h96; 8'h36: d=8'h05; 8'h37: d=8'h9a; 8'h38: d=8'h07; 8'h39: d=8'h12; 8'h3a: d=8'h80; 8'h3b: d=8'he2; 8'h3c: d=8'heb; 8'h3d: d=8'h27; 8'h3e: d=8'hb2; 8'h3f: d=8'h75;
8'h40: d=8'h09; 8'h41: d=8'h83; 8'h42: d=8'h2c; 8'h43: d=8'h1a; 8'h44: d=8'h1b; 8'h45: d=8'h6e; 8'h46: d=8'h5a; 8'h47: d=8'ha0; 8'h48: d=8'h52; 8'h49: d=8'h3b; 8'h4a: d=8'hd6; 8'h4b: d=8'hb3; 8'h4c: d=8'h29; 8'h4d: d=8'he3; 8'h4e: d=8'h2f; 8'h4f: d=8'h84;
8'h50: d=8'h53; 8'h51: d=8'hd1; 8'h52: d=8'h00; 8'h53: d=8'hed; 8'h54: d=8'h20; 8'h55: d=8'hfc; 8'h56: d=8'hb1; 8'h57: d=8'h5b; 8'h58: d=8'h6a; 8'h59: d=8'hcb; 8'h5a: d=8'hbe; 8'h5b: d=8'h39; 8'h5c: d=8'h4a; 8'h5d: d=8'h4c; 8'h5e: d=8'h58; 8'h5f: d=8'hcf;
8'h60: d=8'hd0; 8'h61: d=8'hef; 8'h62: d=8'haa; 8'h63: d=8'hfb; 8'h64: d=8'h43; 8'h65: d=8'h4d; 8'h66: d=8'h33; 8'h67: d=8'h85; 8'h68: d=8'h45; 8'h69: d=8'hf9; 8'h6a: d=8'h02; 8'h6b: d=8'h7f; 8'h6c: d=8'h50; 8'h6d: d=8'h3c; 8'h6e: d=8'h9f; 8'h6f: d=8'ha8;
8'h70: d=8'h51; 8'h71: d=8'ha3; 8'h72: d=8'h40; 8'h73: d=8'h8f; 8'h74: d=8'h92; 8'h75: d=8'h9d; 8'h76: d=8'h38; 8'h77: d=8'hf5; 8'h78: d=8'hbc; 8'h79: d=8'hb6; 8'h7a: d=8'hda; 8'h7b: d=8'h21; 8'h7c: d=8'h10; 8'h7d: d=8'hff; 8'h7e: d=8'hf3; 8'h7f: d=8'hd2;
8'h80: d=8'hcd; 8'h81: d=8'h0c; 8'h82: d=8'h13; 8'h83: d=8'hec; 8'h84: d=8'h5f; 8'h85: d=8'h97; 8'h86: d=8'h44; 8'h87: d=8'h17; 8'h88: d=8'hc4; 8'h89: d=8'ha7; 8'h8a: d=8'h7e; 8'h8b: d=8'h3d; 8'h8c: d=8'h64; 8'h8d: d=8'h5d; 8'h8e: d=8'h19; 8'h8f: d=8'h73;
8'h90: d=8'h60; 8'h91: d=8'h81; 8'h92: d=8'h4f; 8'h93: d=8'hdc; 8'h94: d=8'h22; 8'h95: d=8'h2a; 8'h96: d=8'h90; 8'h97: d=8'h88; 8'h98: d=8'h46; 8'h99: d=8'hee; 8'h9a: d=8'hb8; 8'h9b: d=8'h14; 8'h9c: d=8'hde; 8'h9d: d=8'h5e; 8'h9e: d=8'h0b; 8'h9f: d=8'hdb;
8'ha0: d=8'he0; 8'ha1: d=8'h32; 8'ha2: d=8'h3a; 8'ha3: d=8'h0a; 8'ha4: d=8'h49; 8'ha5: d=8'h06; 8'ha6: d=8'h24; 8'ha7: d=8'h5c; 8'ha8: d=8'hc2; 8'ha9: d=8'hd3; 8'haa: d=8'hac; 8'hab: d=8'h62; 8'hac: d=8'h91; 8'had: d=8'h95; 8'hae: d=8'he4; 8'haf: d=8'h79;
8'hb0: d=8'he7; 8'hb1: d=8'hc8; 8'hb2: d=8'h37; 8'hb3: d=8'h6d; 8'hb4: d=8'h8d; 8'hb5: d=8'hd5; 8'hb6: d=8'h4e; 8'hb7: d=8'ha9; 8'hb8: d=8'h6c; 8'hb9: d=8'h56; 8'hba: d=8'hf4; 8'hbb: d=8'hea; 8'hbc: d=8'h65; 8'hbd: d=8'h7a; 8'hbe: d=8'hae; 8'hbf: d=8'h08;
8'hc0: d=8'hba; 8'hc1: d=8'h78; 8'hc2: d=8'h25; 8'hc3: d=8'h2e; 8'hc4: d=8'h1c; 8'hc5: d=8'ha6; 8'hc6: d=8'hb4; 8'hc7: d=8'hc6; 8'hc8: d=8'he8; 8'hc9: d=8'hdd; 8'hca: d=8'h74; 8'hcb: d=8'h1f; 8'hcc: d=8'h4b; 8'hcd: d=8'hbd; 8'hce: d=8'h8b; 8'hcf: d=8'h8a;
8'hd0: d=8'h70; 8'hd1: d=8'h3e; 8'hd2: d=8'hb5; 8'hd3: d=8'h66; 8'hd4: d=8'h48; 8'hd5: d=8'h03; 8'hd6: d=8'hf6; 8'hd7: d=8'h0e; 8'hd8: d=8'h61; 8'hd9: d=8'h35; 8'hda: d=8'h57; 8'hdb: d=8'hb9; 8'hdc: d=8'h86; 8'hdd: d=8'hc1; 8'hde: d=8'h1d; 8'hdf: d=8'h9e;
8'he0: d=8'he1; 8'he1: d=8'hf8; 8'he2: d=8'h98; 8'he3: d=8'h11; 8'he4: d=8'h69; 8'he5: d=8'hd9; 8'he6: d=8'h8e; 8'he7: d=8'h94; 8'he8: d=8'h9b; 8'he9: d=8'h1e; 8'hea: d=8'h87; 8'heb: d=8'he9; 8'hec: d=8'hce; 8'hed: d=8'h55; 8'hee: d=8'h28; 8'hef: d=8'hdf;
8'hf0: d=8'h8c; 8'hf1: d=8'ha1; 8'hf2: d=8'h89; 8'hf3: d=8'h0d; 8'hf4: d=8'hbf; 8'hf5: d=8'he6; 8'hf6: d=8'h42; 8'hf7: d=8'h68; 8'hf8: d=8'h41; 8'hf9: d=8'h99; 8'hfa: d=8'h2d; 8'hfb: d=8'h0f; 8'hfc: d=8'hb0; 8'hfd: d=8'h54; 8'hfe: d=8'hbb; 8'hff: d=8'h16;
endcase
mm[8*jj+7-:8] = d;
jj = jj+1;
end
case(k)
8'h01: rcon=8'h01;
8'h02: rcon=8'h02;
8'h03: rcon=8'h04;
8'h04: rcon=8'h08;
8'h05: rcon=8'h10;
8'h06: rcon=8'h20;
8'h07: rcon=8'h40;
8'h08: rcon=8'h80;
8'h09: rcon=8'h1b;
8'h0a: rcon=8'h36;
endcase
mm0=mm[31:24];
mm1=mm[23:16];
mm2=mm[15:8];
mm3=mm[7:0];
miyaox00=(m00)^(mm0)^(rcon);
miyaox10=(m10)^(mm1);
miyaox20=(m20)^(mm2);
miyaox30=(m30)^(mm3);
miyaox01=(m01)^(miyaox00);
miyaox11=(m11)^(miyaox10);
miyaox21=(m21)^(miyaox20);
miyaox31=(m31)^(miyaox30);
miyaox02=(m02)^(miyaox01);
miyaox12=(m12)^(miyaox11);
miyaox22=(m22)^(miyaox21);
miyaox32=(m32)^(miyaox31);
miyaox03=(m03)^(miyaox02);
miyaox13=(m13)^(miyaox12);
miyaox23=(m23)^(miyaox22);
miyaox33=(m33)^(miyaox32);
i=10;
end
10://lun mi xiang jia(addroundkey)
begin
//save
s00<=x00;s01<=x01;s02<=x02;s03<=x03;
s10<=x10;s11<=x11;s12<=x12;s13<=x13;
s20<=x20;s21<=x21;s22<=x22;s23<=x23;
s30<=x30;s31<=x31;s32<=x32;s33<=x33;
i<=11;
end
11://lun mi xiang jia(addroundkey)
begin
x00=(s00)^(miyaox00); x01=(s01)^(miyaox01); x02=(s02)^(miyaox02); x03=(s03)^(miyaox03);
x10=(s10)^(miyaox10); x11=(s11)^(miyaox11); x12=(s12)^(miyaox12); x13=(s13)^(miyaox13);
x20=(s20)^(miyaox20); x21=(s21)^(miyaox21); x22=(s22)^(miyaox22); x23=(s23)^(miyaox23);
x30=(s30)^(miyaox30); x31=(s31)^(miyaox31); x32=(s32)^(miyaox32); x33=(s33)^(miyaox33);
if(k<10)
begin
i=1;
end
else
begin
i=12;
end
end
12:
begin
miwen00<=x00;miwen01<=x01;miwen02<=x02;miwen03<=x03;
miwen10<=x10;miwen11<=x11;miwen12<=x12;miwen13<=x13;
miwen20<=x20;miwen21<=x21;miwen22<=x22;miwen23<=x23;
miwen30<=x30;miwen31<=x31;miwen32<=x32;miwen33<=x33;
end
endcase
end
end
end
endmodule
测试代码
`timescale 1ns/1ns
module tb();
reg [7:0] mingwen00,mingwen01,mingwen02,mingwen03;
reg [7:0] mingwen10,mingwen11,mingwen12,mingwen13;
reg [7:0] mingwen20,mingwen21,mingwen22,mingwen23;
reg [7:0] mingwen30,mingwen31,mingwen32,mingwen33;
reg clk;
reg rst_n;
reg [7:0] miyao00,miyao01,miyao02,miyao03;
reg [7:0] miyao10,miyao11,miyao12,miyao13;
reg [7:0] miyao20,miyao21,miyao22,miyao23;
reg [7:0] miyao30,miyao31,miyao32,miyao33;
reg key;
wire [7:0] miwen00,miwen01,miwen02,miwen03;
wire [7:0] miwen10,miwen11,miwen12,miwen13;
wire [7:0] miwen20,miwen21,miwen22,miwen23;
wire [7:0] miwen30,miwen31,miwen32,miwen33;
initial begin
clk = 0;
rst_n=0;
key=0;
#100
rst_n=1;
key=1;
/* mingwen00<=8'h32; mingwen01<=8'h88; mingwen02<=8'h31; mingwen03<=8'he0;
mingwen10<=8'h43; mingwen11<=8'h5a; mingwen12<=8'h31; mingwen13<=8'h37;
mingwen20<=8'hf6; mingwen21<=8'h30; mingwen22<=8'h98; mingwen23<=8'h07;
mingwen30<=8'ha8; mingwen31<=8'h8d; mingwen32<=8'ha2; mingwen33<=8'h34;
miyao00<=8'h2b;miyao01<=8'h28;miyao02<=8'hab;miyao03<=8'h09;
miyao10<=8'h7e;miyao11<=8'hae;miyao12<=8'hf7;miyao13<=8'hcf;
miyao20<=8'h15;miyao21<=8'hd2;miyao22<=8'h15;miyao23<=8'h4f;
miyao30<=8'h16;miyao31<=8'ha6;miyao32<=8'h88;miyao33<=8'h3c;*/
mingwen00<=8'h00; mingwen01<=8'h12; mingwen02<=8'h0c; mingwen03<=8'h08;
mingwen10<=8'h04; mingwen11<=8'h04; mingwen12<=8'h00; mingwen13<=8'h23;
mingwen20<=8'h12; mingwen21<=8'h12; mingwen22<=8'h13; mingwen23<=8'h19;
mingwen30<=8'h14; mingwen31<=8'h00; mingwen32<=8'h11; mingwen33<=8'h19;
miyao00<=8'h24;miyao01<=8'h34;miyao02<=8'h31;miyao03<=8'h13;
miyao10<=8'h75;miyao11<=8'h75;miyao12<=8'he2;miyao13<=8'haa;
miyao20<=8'ha2;miyao21<=8'h56;miyao22<=8'h12;miyao23<=8'h54;
miyao30<=8'hb3;miyao31<=8'h88;miyao32<=8'h00;miyao33<=8'h87;
#10000
$display("\tmiwen00=%h,miwen01=%h,miwen02=%h,miwen03=%h,",miwen00,miwen01,miwen02,miwen03);
$display("\tmiwen10=%h,miwen11=%h,miwen12=%h,miwen13=%h,",miwen10,miwen11,miwen12,miwen13);//00 04 12 14 12 04 12 00 0c 00 13 11 08 23 19 19
$display("\tmiwen20=%h,miwen21=%h,miwen22=%h,miwen23=%h,",miwen20,miwen21,miwen22,miwen23);//24 75 a2 b3 34 75 56 88 31 e2 12 00 13 aa 54 87
$display("\tmiwen30=%h,miwen31=%h,miwen32=%h,miwen33=%h,",miwen30,miwen31,miwen32,miwen33);//bc 02 8b d3 e0 e3 b1 95 55 0d 6d f8 16 f1 82 41
$stop;
end
always #10 clk = ~clk;
AES U(
mingwen00,mingwen01,mingwen02,mingwen03,
mingwen10,mingwen11,mingwen12,mingwen13,
mingwen20,mingwen21,mingwen22,mingwen23,
mingwen30,mingwen31,mingwen32,mingwen33,
clk,rst_n,
miyao00,miyao01,miyao02,miyao03,
miyao10,miyao11,miyao12,miyao13,
miyao20,miyao21,miyao22,miyao23,
miyao30,miyao31,miyao32,miyao33,
key,
miwen00,miwen01,miwen02,miwen03,
miwen10,miwen11,miwen12,miwen13,
miwen20,miwen21,miwen22,miwen23,
miwen30,miwen31,miwen32,miwen33);
endmodule
AES解码于2022.3.13完工，代码如下
module AES_back(//CYX
miwen00,miwen01,miwen02,miwen03,
miwen10,miwen11,miwen12,miwen13,
miwen20,miwen21,miwen22,miwen23,
miwen30,miwen31,miwen32,miwen33,
clk,rst_n,
miyao00,miyao01,miyao02,miyao03,
miyao10,miyao11,miyao12,miyao13,
miyao20,miyao21,miyao22,miyao23,
miyao30,miyao31,miyao32,miyao33,
key,
mingwen00,mingwen01,mingwen02,mingwen03,
mingwen10,mingwen11,mingwen12,mingwen13,
mingwen20,mingwen21,mingwen22,mingwen23,
mingwen30,mingwen31,mingwen32,mingwen33);
input [7:0] miwen00,miwen01,miwen02,miwen03;
input [7:0] miwen10,miwen11,miwen12,miwen13;
input [7:0] miwen20,miwen21,miwen22,miwen23;
input [7:0] miwen30,miwen31,miwen32,miwen33;
input clk;
input rst_n;
input [7:0] miyao00,miyao01,miyao02,miyao03;
input [7:0] miyao10,miyao11,miyao12,miyao13;
input [7:0] miyao20,miyao21,miyao22,miyao23;
input [7:0] miyao30,miyao31,miyao32,miyao33;
input key;
output reg [7:0] mingwen00,mingwen01,mingwen02,mingwen03;
output reg [7:0] mingwen10,mingwen11,mingwen12,mingwen13;
output reg [7:0] mingwen20,mingwen21,mingwen22,mingwen23;
output reg [7:0] mingwen30,mingwen31,mingwen32,mingwen33;
reg [7:0] miyaox00,miyaox01,miyaox02,miyaox03;
reg [7:0] miyaox10,miyaox11,miyaox12,miyaox13;
reg [7:0] miyaox20,miyaox21,miyaox22,miyaox23;
reg [7:0] miyaox30,miyaox31,miyaox32,miyaox33;
reg [7:0] x00, x01, x02, x03;
reg [7:0] x10, x11, x12, x13;
reg [7:0] x20, x21, x22, x23;
reg [7:0] x30, x31, x32, x33;
reg [127:0] x;
reg [127:0] s_2;
reg [7:0] i;
reg [7:0] i_2;
reg [7:0] j;
reg [7:0] c;
reg [7:0] d;
reg [7:0] k;
reg [7:0] p1,p2,p3,p4,p5,p6,p7,p8,p9,p10,p11,p12,p13,p14,p15,p16;
reg [7:0] s00,s01,s02,s03,s10,s11,s12,s13,s20,s21,s22,s23,s30,s31,s32,s33;
reg [7:0] s00_2,s01_2,s02_2,s03_2,s10_2,s11_2,s12_2,s13_2,s20_2,s21_2,s22_2,s23_2,s30_2,s31_2,s32_2,s33_2;
reg [7:0] s00_4,s01_4,s02_4,s03_4,s10_4,s11_4,s12_4,s13_4,s20_4,s21_4,s22_4,s23_4,s30_4,s31_4,s32_4,s33_4;
reg [7:0] s00_8,s01_8,s02_8,s03_8,s10_8,s11_8,s12_8,s13_8,s20_8,s21_8,s22_8,s23_8,s30_8,s31_8,s32_8,s33_8;
reg [7:0] s00_9,s01_9,s02_9,s03_9,s10_9,s11_9,s12_9,s13_9,s20_9,s21_9,s22_9,s23_9,s30_9,s31_9,s32_9,s33_9;
reg [7:0] s00_b,s01_b,s02_b,s03_b,s10_b,s11_b,s12_b,s13_b,s20_b,s21_b,s22_b,s23_b,s30_b,s31_b,s32_b,s33_b;
reg [7:0] s00_d,s01_d,s02_d,s03_d,s10_d,s11_d,s12_d,s13_d,s20_d,s21_d,s22_d,s23_d,s30_d,s31_d,s32_d,s33_d;
reg [7:0] s00_e,s01_e,s02_e,s03_e,s10_e,s11_e,s12_e,s13_e,s20_e,s21_e,s22_e,s23_e,s30_e,s31_e,s32_e,s33_e;
reg [7:0] m00, m01, m02, m03;
reg [7:0] m10, m11, m12, m13;
reg [7:0] m20, m21, m22, m23;
reg [7:0] m30, m31, m32, m33;
reg [7:0] mm0, mm1, mm2, mm3;
reg [31:0] mm;
reg [7:0] jj;
reg [7:0] rcon;
reg [7:0] y;
reg [7:0] kk;
always@(posedge clk or negedge rst_n)
begin
if(!rst_n)
begin
i<=0;
i_2<=0;
y<=0;
mingwen00<=0; mingwen01<=0; mingwen02<=0; mingwen03<=0;
mingwen10<=0; mingwen11<=0; mingwen12<=0; mingwen13<=0;
mingwen20<=0; mingwen21<=0; mingwen22<=0; mingwen23<=0;
mingwen30<=0; mingwen31<=0; mingwen32<=0; mingwen33<=0;
miyaox00<=0;miyaox01<=0;miyaox02<=0;miyaox03<=0;
miyaox10<=0;miyaox11<=0;miyaox12<=0;miyaox13<=0;
miyaox20<=0;miyaox21<=0;miyaox22<=0;miyaox23<=0;
miyaox30<=0;miyaox31<=0;miyaox32<=0;miyaox33<=0;
x00<=0; x01<=0; x02<=0; x03<=0;
x10<=0; x11<=0; x12<=0; x13<=0;
x20<=0; x21<=0; x22<=0; x23<=0;
x30<=0; x31<=0; x32<=0; x33<=0;
p1<=0; p2<=0; p3<=0; p4<=0;
p5<=0; p6<=0; p7<=0; p8<=0;
p9<=0; p10<=0; p11<=0; p12<=0;
p13<=0; p14<=0; p15<=0; p16<=0;
s00<=0; s01<=0; s02<=0; s03<=0;
s10<=0; s11<=0; s12<=0; s13<=0;
s20<=0; s21<=0; s22<=0; s23<=0;
s30<=0; s31<=0; s32<=0; s33<=0;
s00_2<=0; s01_2<=0; s02_2<=0; s03_2<=0;
s10_2<=0; s11_2<=0; s12_2<=0; s13_2<=0;
s20_2<=0; s21_2<=0; s22_2<=0; s23_2<=0;
s30_2<=0; s31_2<=0; s32_2<=0; s33_2<=0;
s00_9<=0; s01_9<=0; s02_9<=0; s03_9<=0;
s10_9<=0; s11_9<=0; s12_9<=0; s13_9<=0;
s20_9<=0; s21_9<=0; s22_9<=0; s23_9<=0;
s30_9<=0; s31_9<=0; s32_9<=0; s33_9<=0;
s00_4<=0; s01_4<=0; s02_4<=0; s03_4<=0;
s10_4<=0; s11_4<=0; s12_4<=0; s13_4<=0;
s20_4<=0; s21_4<=0; s22_4<=0; s23_4<=0;
s30_4<=0; s31_4<=0; s32_4<=0; s33_4<=0;
s00_8<=0; s01_8<=0; s02_8<=0; s03_8<=0;
s10_8<=0; s11_8<=0; s12_8<=0; s13_8<=0;
s20_8<=0; s21_8<=0; s22_9<=0; s23_8<=0;
s30_8<=0; s31_8<=0; s32_8<=0; s33_8<=0;
s00_b<=0; s01_b<=0; s02_b<=0; s03_b<=0;
s10_b<=0; s11_b<=0; s12_b<=0; s13_b<=0;
s20_b<=0; s21_b<=0; s22_b<=0; s23_b<=0;
s30_b<=0; s31_b<=0; s32_b<=0; s33_b<=0;
s00_d<=0; s01_d<=0; s02_d<=0; s03_d<=0;
s10_d<=0; s11_d<=0; s12_d<=0; s13_d<=0;
s20_d<=0; s21_d<=0; s22_d<=0; s23_d<=0;
s30_d<=0; s31_d<=0; s32_d<=0; s33_d<=0;
s00_e<=0; s01_e<=0; s02_e<=0; s03_e<=0;
s10_e<=0; s11_e<=0; s12_e<=0; s13_e<=0;
s20_e<=0; s21_e<=0; s22_e<=0; s23_e<=0;
s30_e<=0; s31_e<=0; s32_e<=0; s33_e<=0;
m00<=0; m01<=0; m02<=0; m03<=0;
m10<=0; m11<=0; m12<=0; m13<=0;
m20<=0; m21<=0; m22<=0; m23<=0;
m30<=0; m31<=0; m32<=0; m33<=0;
mm0<=0; mm1<=0; mm2<=0; mm3<=0;
mm<=0;
jj<=0;
rcon<=0;
c<=0;
d<=0;
k<=0;
x<=0;
s_2<=0;
kk<=0;
end
else
begin
if(key==1)
begin
case(i)
0:
begin
x00<=miwen00; x01<=miwen01; x02<=miwen02; x03<=miwen03;
x10<=miwen10; x11<=miwen11; x12<=miwen12; x13<=miwen13;
x20<=miwen20; x21<=miwen21; x22<=miwen22; x23<=miwen23;
x30<=miwen30; x31<=miwen31; x32<=miwen32; x33<=miwen33;
k<=10;
i<=1;
end
1:
begin
miyaox00=miyao00;miyaox01=miyao01;miyaox02=miyao02;miyaox03=miyao03;
miyaox10=miyao10;miyaox11=miyao11;miyaox12=miyao12;miyaox13=miyao13;
miyaox20=miyao20;miyaox21=miyao21;miyaox22=miyao22;miyaox23=miyao23;
miyaox30=miyao30;miyaox31=miyao31;miyaox32=miyao32;miyaox33=miyao33;
kk=0;
while(kk<k)
begin
m00=miyaox00; m01=miyaox01; m02=miyaox02; m03=miyaox03;
m10=miyaox10; m11=miyaox11; m12=miyaox12; m13=miyaox13;
m20=miyaox20; m21=miyaox21; m22=miyaox22; m23=miyaox23;
m30=miyaox30; m31=miyaox31; m32=miyaox32; m33=miyaox33;
jj=0;
mm0=m13;
mm1=m23;
mm2=m33;
mm3=m03;
mm={mm0,mm1,mm2,mm3};
while(jj<4)
begin
c = mm[8*jj+7-:8];
case(c)
8'h00: d=8'h63; 8'h01: d=8'h7c; 8'h02: d=8'h77; 8'h03: d=8'h7b; 8'h04: d=8'hf2; 8'h05: d=8'h6b; 8'h06: d=8'h6f; 8'h07: d=8'hc5; 8'h08: d=8'h30; 8'h09: d=8'h01; 8'h0a: d=8'h67; 8'h0b: d=8'h2b; 8'h0c: d=8'hfe; 8'h0d: d=8'hd7; 8'h0e: d=8'hab; 8'h0f: d=8'h76;
8'h10: d=8'hca; 8'h11: d=8'h82; 8'h12: d=8'hc9; 8'h13: d=8'h7d; 8'h14: d=8'hfa; 8'h15: d=8'h59; 8'h16: d=8'h47; 8'h17: d=8'hf0; 8'h18: d=8'had; 8'h19: d=8'hd4; 8'h1a: d=8'ha2; 8'h1b: d=8'haf; 8'h1c: d=8'h9c; 8'h1d: d=8'ha4; 8'h1e: d=8'h72; 8'h1f: d=8'hc0;
8'h20: d=8'hb7; 8'h21: d=8'hfd; 8'h22: d=8'h93; 8'h23: d=8'h26; 8'h24: d=8'h36; 8'h25: d=8'h3f; 8'h26: d=8'hf7; 8'h27: d=8'hcc; 8'h28: d=8'h34; 8'h29: d=8'ha5; 8'h2a: d=8'he5; 8'h2b: d=8'hf1; 8'h2c: d=8'h71; 8'h2d: d=8'hd8; 8'h2e: d=8'h31; 8'h2f: d=8'h15;
8'h30: d=8'h04; 8'h31: d=8'hc7; 8'h32: d=8'h23; 8'h33: d=8'hc3; 8'h34: d=8'h18; 8'h35: d=8'h96; 8'h36: d=8'h05; 8'h37: d=8'h9a; 8'h38: d=8'h07; 8'h39: d=8'h12; 8'h3a: d=8'h80; 8'h3b: d=8'he2; 8'h3c: d=8'heb; 8'h3d: d=8'h27; 8'h3e: d=8'hb2; 8'h3f: d=8'h75;
8'h40: d=8'h09; 8'h41: d=8'h83; 8'h42: d=8'h2c; 8'h43: d=8'h1a; 8'h44: d=8'h1b; 8'h45: d=8'h6e; 8'h46: d=8'h5a; 8'h47: d=8'ha0; 8'h48: d=8'h52; 8'h49: d=8'h3b; 8'h4a: d=8'hd6; 8'h4b: d=8'hb3; 8'h4c: d=8'h29; 8'h4d: d=8'he3; 8'h4e: d=8'h2f; 8'h4f: d=8'h84;
8'h50: d=8'h53; 8'h51: d=8'hd1; 8'h52: d=8'h00; 8'h53: d=8'hed; 8'h54: d=8'h20; 8'h55: d=8'hfc; 8'h56: d=8'hb1; 8'h57: d=8'h5b; 8'h58: d=8'h6a; 8'h59: d=8'hcb; 8'h5a: d=8'hbe; 8'h5b: d=8'h39; 8'h5c: d=8'h4a; 8'h5d: d=8'h4c; 8'h5e: d=8'h58; 8'h5f: d=8'hcf;
8'h60: d=8'hd0; 8'h61: d=8'hef; 8'h62: d=8'haa; 8'h63: d=8'hfb; 8'h64: d=8'h43; 8'h65: d=8'h4d; 8'h66: d=8'h33; 8'h67: d=8'h85; 8'h68: d=8'h45; 8'h69: d=8'hf9; 8'h6a: d=8'h02; 8'h6b: d=8'h7f; 8'h6c: d=8'h50; 8'h6d: d=8'h3c; 8'h6e: d=8'h9f; 8'h6f: d=8'ha8;
8'h70: d=8'h51; 8'h71: d=8'ha3; 8'h72: d=8'h40; 8'h73: d=8'h8f; 8'h74: d=8'h92; 8'h75: d=8'h9d; 8'h76: d=8'h38; 8'h77: d=8'hf5; 8'h78: d=8'hbc; 8'h79: d=8'hb6; 8'h7a: d=8'hda; 8'h7b: d=8'h21; 8'h7c: d=8'h10; 8'h7d: d=8'hff; 8'h7e: d=8'hf3; 8'h7f: d=8'hd2;
8'h80: d=8'hcd; 8'h81: d=8'h0c; 8'h82: d=8'h13; 8'h83: d=8'hec; 8'h84: d=8'h5f; 8'h85: d=8'h97; 8'h86: d=8'h44; 8'h87: d=8'h17; 8'h88: d=8'hc4; 8'h89: d=8'ha7; 8'h8a: d=8'h7e; 8'h8b: d=8'h3d; 8'h8c: d=8'h64; 8'h8d: d=8'h5d; 8'h8e: d=8'h19; 8'h8f: d=8'h73;
8'h90: d=8'h60; 8'h91: d=8'h81; 8'h92: d=8'h4f; 8'h93: d=8'hdc; 8'h94: d=8'h22; 8'h95: d=8'h2a; 8'h96: d=8'h90; 8'h97: d=8'h88; 8'h98: d=8'h46; 8'h99: d=8'hee; 8'h9a: d=8'hb8; 8'h9b: d=8'h14; 8'h9c: d=8'hde; 8'h9d: d=8'h5e; 8'h9e: d=8'h0b; 8'h9f: d=8'hdb;
8'ha0: d=8'he0; 8'ha1: d=8'h32; 8'ha2: d=8'h3a; 8'ha3: d=8'h0a; 8'ha4: d=8'h49; 8'ha5: d=8'h06; 8'ha6: d=8'h24; 8'ha7: d=8'h5c; 8'ha8: d=8'hc2; 8'ha9: d=8'hd3; 8'haa: d=8'hac; 8'hab: d=8'h62; 8'hac: d=8'h91; 8'had: d=8'h95; 8'hae: d=8'he4; 8'haf: d=8'h79;
8'hb0: d=8'he7; 8'hb1: d=8'hc8; 8'hb2: d=8'h37; 8'hb3: d=8'h6d; 8'hb4: d=8'h8d; 8'hb5: d=8'hd5; 8'hb6: d=8'h4e; 8'hb7: d=8'ha9; 8'hb8: d=8'h6c; 8'hb9: d=8'h56; 8'hba: d=8'hf4; 8'hbb: d=8'hea; 8'hbc: d=8'h65; 8'hbd: d=8'h7a; 8'hbe: d=8'hae; 8'hbf: d=8'h08;
8'hc0: d=8'hba; 8'hc1: d=8'h78; 8'hc2: d=8'h25; 8'hc3: d=8'h2e; 8'hc4: d=8'h1c; 8'hc5: d=8'ha6; 8'hc6: d=8'hb4; 8'hc7: d=8'hc6; 8'hc8: d=8'he8; 8'hc9: d=8'hdd; 8'hca: d=8'h74; 8'hcb: d=8'h1f; 8'hcc: d=8'h4b; 8'hcd: d=8'hbd; 8'hce: d=8'h8b; 8'hcf: d=8'h8a;
8'hd0: d=8'h70; 8'hd1: d=8'h3e; 8'hd2: d=8'hb5; 8'hd3: d=8'h66; 8'hd4: d=8'h48; 8'hd5: d=8'h03; 8'hd6: d=8'hf6; 8'hd7: d=8'h0e; 8'hd8: d=8'h61; 8'hd9: d=8'h35; 8'hda: d=8'h57; 8'hdb: d=8'hb9; 8'hdc: d=8'h86; 8'hdd: d=8'hc1; 8'hde: d=8'h1d; 8'hdf: d=8'h9e;
8'he0: d=8'he1; 8'he1: d=8'hf8; 8'he2: d=8'h98; 8'he3: d=8'h11; 8'he4: d=8'h69; 8'he5: d=8'hd9; 8'he6: d=8'h8e; 8'he7: d=8'h94; 8'he8: d=8'h9b; 8'he9: d=8'h1e; 8'hea: d=8'h87; 8'heb: d=8'he9; 8'hec: d=8'hce; 8'hed: d=8'h55; 8'hee: d=8'h28; 8'hef: d=8'hdf;
8'hf0: d=8'h8c; 8'hf1: d=8'ha1; 8'hf2: d=8'h89; 8'hf3: d=8'h0d; 8'hf4: d=8'hbf; 8'hf5: d=8'he6; 8'hf6: d=8'h42; 8'hf7: d=8'h68; 8'hf8: d=8'h41; 8'hf9: d=8'h99; 8'hfa: d=8'h2d; 8'hfb: d=8'h0f; 8'hfc: d=8'hb0; 8'hfd: d=8'h54; 8'hfe: d=8'hbb; 8'hff: d=8'h16;
endcase
mm[8*jj+7-:8] = d;
jj = jj+1;
end
case(kk+1)
8'h01: rcon=8'h01;
8'h02: rcon=8'h02;
8'h03: rcon=8'h04;
8'h04: rcon=8'h08;
8'h05: rcon=8'h10;
8'h06: rcon=8'h20;
8'h07: rcon=8'h40;
8'h08: rcon=8'h80;
8'h09: rcon=8'h1b;
8'h0a: rcon=8'h36;
endcase
mm0=mm[31:24];
mm1=mm[23:16];
mm2=mm[15:8];
mm3=mm[7:0];
miyaox00=(m00)^(mm0)^(rcon);
miyaox10=(m10)^(mm1);
miyaox20=(m20)^(mm2);
miyaox30=(m30)^(mm3);
miyaox01=(m01)^(miyaox00);
miyaox11=(m11)^(miyaox10);
miyaox21=(m21)^(miyaox20);
miyaox31=(m31)^(miyaox30);
miyaox02=(m02)^(miyaox01);
miyaox12=(m12)^(miyaox11);
miyaox22=(m22)^(miyaox21);
miyaox32=(m32)^(miyaox31);
miyaox03=(m03)^(miyaox02);
miyaox13=(m13)^(miyaox12);
miyaox23=(m23)^(miyaox22);
miyaox33=(m33)^(miyaox32);
kk=kk+1;
end
i=2;
end
2://lun mi xiang jia(addroundkey)
begin
//save
s00<=x00;s01<=x01;s02<=x02;s03<=x03;
s10<=x10;s11<=x11;s12<=x12;s13<=x13;
s20<=x20;s21<=x21;s22<=x22;s23<=x23;
s30<=x30;s31<=x31;s32<=x32;s33<=x33;
i<=3;
end
3://lun mi xiang jia(addroundkey)
begin
x00=(s00)^(miyaox00); x01=(s01)^(miyaox01); x02=(s02)^(miyaox02); x03=(s03)^(miyaox03);
x10=(s10)^(miyaox10); x11=(s11)^(miyaox11); x12=(s12)^(miyaox12); x13=(s13)^(miyaox13);
x20=(s20)^(miyaox20); x21=(s21)^(miyaox21); x22=(s22)^(miyaox22); x23=(s23)^(miyaox23);
x30=(s30)^(miyaox30); x31=(s31)^(miyaox31); x32=(s32)^(miyaox32); x33=(s33)^(miyaox33);
k=k-1;
if(k==9)
begin
i=6;
end
else if(k<9)
begin
i=8;
end
else
begin
i=11;
end
end
4://zi jie bian hua(subbytes)
begin
x = {x00, x01, x02, x03,
x10, x11, x12, x13,
x20, x21, x22, x23,
x30, x31, x32, x33};
j=0;i=5;
end
5:
begin
while(j<16)
begin
c = x[8*j+7-:8];
case(c)
8'h00: d=8'h52; 8'h01: d=8'h09; 8'h02: d=8'h6a; 8'h03: d=8'hd5; 8'h04: d=8'h30; 8'h05: d=8'h36; 8'h06: d=8'ha5; 8'h07: d=8'h38; 8'h08: d=8'hbf; 8'h09: d=8'h40; 8'h0a: d=8'ha3; 8'h0b: d=8'h9e; 8'h0c: d=8'h81; 8'h0d: d=8'hf3; 8'h0e: d=8'hd7; 8'h0f: d=8'hfb;
8'h10: d=8'h7c; 8'h11: d=8'he3; 8'h12: d=8'h39; 8'h13: d=8'h82; 8'h14: d=8'h9b; 8'h15: d=8'h2f; 8'h16: d=8'hff; 8'h17: d=8'h87; 8'h18: d=8'h34; 8'h19: d=8'h8e; 8'h1a: d=8'h43; 8'h1b: d=8'h44; 8'h1c: d=8'hc4; 8'h1d: d=8'hde; 8'h1e: d=8'he9; 8'h1f: d=8'hcb;
8'h20: d=8'h54; 8'h21: d=8'h7b; 8'h22: d=8'h94; 8'h23: d=8'h32; 8'h24: d=8'ha6; 8'h25: d=8'hc2; 8'h26: d=8'h23; 8'h27: d=8'h3d; 8'h28: d=8'hee; 8'h29: d=8'h4c; 8'h2a: d=8'h95; 8'h2b: d=8'h0b; 8'h2c: d=8'h42; 8'h2d: d=8'hfa; 8'h2e: d=8'hc3; 8'h2f: d=8'h4e;
8'h30: d=8'h08; 8'h31: d=8'h2e; 8'h32: d=8'ha1; 8'h33: d=8'h66; 8'h34: d=8'h28; 8'h35: d=8'hd9; 8'h36: d=8'h24; 8'h37: d=8'hb2; 8'h38: d=8'h76; 8'h39: d=8'h5b; 8'h3a: d=8'ha2; 8'h3b: d=8'h49; 8'h3c: d=8'h6d; 8'h3d: d=8'h8b; 8'h3e: d=8'hd1; 8'h3f: d=8'h25;
8'h40: d=8'h72; 8'h41: d=8'hf8; 8'h42: d=8'hf6; 8'h43: d=8'h64; 8'h44: d=8'h86; 8'h45: d=8'h68; 8'h46: d=8'h98; 8'h47: d=8'h16; 8'h48: d=8'hd4; 8'h49: d=8'ha4; 8'h4a: d=8'h5c; 8'h4b: d=8'hcc; 8'h4c: d=8'h5d; 8'h4d: d=8'h65; 8'h4e: d=8'hb6; 8'h4f: d=8'h92;
8'h50: d=8'h6c; 8'h51: d=8'h70; 8'h52: d=8'h48; 8'h53: d=8'h50; 8'h54: d=8'hfd; 8'h55: d=8'hed; 8'h56: d=8'hb9; 8'h57: d=8'hda; 8'h58: d=8'h5e; 8'h59: d=8'h15; 8'h5a: d=8'h46; 8'h5b: d=8'h57; 8'h5c: d=8'ha7; 8'h5d: d=8'h8d; 8'h5e: d=8'h9d; 8'h5f: d=8'h84;
8'h60: d=8'h90; 8'h61: d=8'hd8; 8'h62: d=8'hab; 8'h63: d=8'h00; 8'h64: d=8'h8c; 8'h65: d=8'hbc; 8'h66: d=8'hd3; 8'h67: d=8'h0a; 8'h68: d=8'hf7; 8'h69: d=8'he4; 8'h6a: d=8'h58; 8'h6b: d=8'h05; 8'h6c: d=8'hb8; 8'h6d: d=8'hb3; 8'h6e: d=8'h45; 8'h6f: d=8'h06;
8'h70: d=8'hd0; 8'h71: d=8'h2c; 8'h72: d=8'h1e; 8'h73: d=8'h8f; 8'h74: d=8'hca; 8'h75: d=8'h3f; 8'h76: d=8'h0f; 8'h77: d=8'h02; 8'h78: d=8'hc1; 8'h79: d=8'haf; 8'h7a: d=8'hbd; 8'h7b: d=8'h03; 8'h7c: d=8'h01; 8'h7d: d=8'h13; 8'h7e: d=8'h8a; 8'h7f: d=8'h6b;
8'h80: d=8'h3a; 8'h81: d=8'h91; 8'h82: d=8'h11; 8'h83: d=8'h41; 8'h84: d=8'h4f; 8'h85: d=8'h67; 8'h86: d=8'hdc; 8'h87: d=8'hea; 8'h88: d=8'h97; 8'h89: d=8'hf2; 8'h8a: d=8'hcf; 8'h8b: d=8'hce; 8'h8c: d=8'hf0; 8'h8d: d=8'hb4; 8'h8e: d=8'he6; 8'h8f: d=8'h73;
8'h90: d=8'h96; 8'h91: d=8'hac; 8'h92: d=8'h74; 8'h93: d=8'h22; 8'h94: d=8'he7; 8'h95: d=8'had; 8'h96: d=8'h35; 8'h97: d=8'h85; 8'h98: d=8'he2; 8'h99: d=8'hf9; 8'h9a: d=8'h37; 8'h9b: d=8'he8; 8'h9c: d=8'h1c; 8'h9d: d=8'h75; 8'h9e: d=8'hdf; 8'h9f: d=8'h6e;
8'ha0: d=8'h47; 8'ha1: d=8'hf1; 8'ha2: d=8'h1a; 8'ha3: d=8'h71; 8'ha4: d=8'h1d; 8'ha5: d=8'h29; 8'ha6: d=8'hc5; 8'ha7: d=8'h89; 8'ha8: d=8'h6f; 8'ha9: d=8'hb7; 8'haa: d=8'h62; 8'hab: d=8'h0e; 8'hac: d=8'haa; 8'had: d=8'h18; 8'hae: d=8'hbe; 8'haf: d=8'h1b;
8'hb0: d=8'hfc; 8'hb1: d=8'h56; 8'hb2: d=8'h3e; 8'hb3: d=8'h4b; 8'hb4: d=8'hc6; 8'hb5: d=8'hd2; 8'hb6: d=8'h79; 8'hb7: d=8'h20; 8'hb8: d=8'h9a; 8'hb9: d=8'hdb; 8'hba: d=8'hc0; 8'hbb: d=8'hfe; 8'hbc: d=8'h78; 8'hbd: d=8'hcd; 8'hbe: d=8'h5a; 8'hbf: d=8'hf4;
8'hc0: d=8'h1f; 8'hc1: d=8'hdd; 8'hc2: d=8'ha8; 8'hc3: d=8'h33; 8'hc4: d=8'h88; 8'hc5: d=8'h07; 8'hc6: d=8'hc7; 8'hc7: d=8'h31; 8'hc8: d=8'hb1; 8'hc9: d=8'h12; 8'hca: d=8'h10; 8'hcb: d=8'h59; 8'hcc: d=8'h27; 8'hcd: d=8'h80; 8'hce: d=8'hec; 8'hcf: d=8'h5f;
8'hd0: d=8'h60; 8'hd1: d=8'h51; 8'hd2: d=8'h7f; 8'hd3: d=8'ha9; 8'hd4: d=8'h19; 8'hd5: d=8'hb5; 8'hd6: d=8'h4a; 8'hd7: d=8'h0d; 8'hd8: d=8'h2d; 8'hd9: d=8'he5; 8'hda: d=8'h7a; 8'hdb: d=8'h9f; 8'hdc: d=8'h93; 8'hdd: d=8'hc9; 8'hde: d=8'h9c; 8'hdf: d=8'hef;
8'he0: d=8'ha0; 8'he1: d=8'he0; 8'he2: d=8'h3b; 8'he3: d=8'h4d; 8'he4: d=8'hae; 8'he5: d=8'h2a; 8'he6: d=8'hf5; 8'he7: d=8'hb0; 8'he8: d=8'hc8; 8'he9: d=8'heb; 8'hea: d=8'hbb; 8'heb: d=8'h3c; 8'hec: d=8'h83; 8'hed: d=8'h53; 8'hee: d=8'h99; 8'hef: d=8'h61;
8'hf0: d=8'h17; 8'hf1: d=8'h2b; 8'hf2: d=8'h04; 8'hf3: d=8'h7e; 8'hf4: d=8'hba; 8'hf5: d=8'h77; 8'hf6: d=8'hd6; 8'hf7: d=8'h26; 8'hf8: d=8'he1; 8'hf9: d=8'h69; 8'hfa: d=8'h14; 8'hfb: d=8'h63; 8'hfc: d=8'h55; 8'hfd: d=8'h21; 8'hfe: d=8'h0c; 8'hff: d=8'h7d;
endcase
x[8*j+7-:8] = d;
j=j+1;
end
x00=x[127:120]; x01=x[119:112]; x02=x[111:104]; x03=x[103:96];
x10=x[95:88]; x11=x[87:80]; x12=x[79:72]; x13=x[71:64];
x20=x[63:56]; x21=x[55:48]; x22=x[47:40]; x23=x[39:32];
x30=x[31:24]; x31=x[23:16]; x32=x[15:8]; x33=x[7:0];
i=1;
end
6://hang yi wei(shiftrows)
begin
//save
p1<=x00; p5<=x01; p9<=x02; p13<=x03;
p2<=x10; p6<=x11; p10<=x12; p14<=x13;
p3<=x20; p7<=x21; p11<=x22; p15<=x23;
p4<=x30; p8<=x31; p12<=x32; p16<=x33;
i<=7;
end
7://hang yi wei(shiftrows)
begin
x00<=p1; x01<=p5; x02<=p9; x03<=p13;//1 no change
x10<=p14; x11<=p2; x12<=p6; x13<=p10;//2>>1
x20<=p11; x21<=p15; x22<=p3; x23<=p7;//3>>2
x30<=p8; x31<=p12; x32<=p16; x33<=p4;//4>>3
i<=4;
end
8://lie hun he(mixcolumns)
begin
//save
s00<=x00;s01<=x01;s02<=x02;s03<=x03;
s10<=x10;s11<=x11;s12<=x12;s13<=x13;
s20<=x20;s21<=x21;s22<=x22;s23<=x23;
s30<=x30;s31<=x31;s32<=x32;s33<=x33;
s_2<={x00,x01,x02,x03,
x10,x11,x12,x13,
x20,x21,x22,x23,
x30,x31,x32,x33};
i<=9;
i_2<=0;
y<=0;
end
9:
begin
while(y<3)
begin
while(i_2<16)
begin
if((s_2[8*i_2+7])==0)
begin
s_2[8*i_2+7-:8]={s_2[8*i_2+6-:7],1'b0};
end
else
begin
s_2[8*i_2+7-:8]=({s_2[8*i_2+6-:7],1'b0})^(8'b0001_1011);
end
i_2=i_2+1;
end
if(y==0)
begin
s00_2=s_2[127:120]; s01_2=s_2[119:112]; s02_2=s_2[111:104]; s03_2=s_2[103:96];
s10_2=s_2[95:88]; s11_2=s_2[87:80]; s12_2=s_2[79:72]; s13_2=s_2[71:64];
s20_2=s_2[63:56]; s21_2=s_2[55:48]; s22_2=s_2[47:40]; s23_2=s_2[39:32];
s30_2=s_2[31:24]; s31_2=s_2[23:16]; s32_2=s_2[15:8]; s33_2=s_2[7:0];
end
else if(y==1)
begin
s00_4=s_2[127:120]; s01_4=s_2[119:112]; s02_4=s_2[111:104]; s03_4=s_2[103:96];
s10_4=s_2[95:88]; s11_4=s_2[87:80]; s12_4=s_2[79:72]; s13_4=s_2[71:64];
s20_4=s_2[63:56]; s21_4=s_2[55:48]; s22_4=s_2[47:40]; s23_4=s_2[39:32];
s30_4=s_2[31:24]; s31_4=s_2[23:16]; s32_4=s_2[15:8]; s33_4=s_2[7:0];
end
else if(y==2)
begin
s00_8=s_2[127:120]; s01_8=s_2[119:112]; s02_8=s_2[111:104]; s03_8=s_2[103:96];
s10_8=s_2[95:88]; s11_8=s_2[87:80]; s12_8=s_2[79:72]; s13_8=s_2[71:64];
s20_8=s_2[63:56]; s21_8=s_2[55:48]; s22_8=s_2[47:40]; s23_8=s_2[39:32];
s30_8=s_2[31:24]; s31_8=s_2[23:16]; s32_8=s_2[15:8]; s33_8=s_2[7:0];
end
y=y+1;
i_2=0;
end
s00_9=s00_8^s00; s01_9=s01_8^s01; s02_9=s02_8^s02; s03_9=s03_8^s03;
s10_9=s10_8^s10; s11_9=s11_8^s11; s12_9=s12_8^s12; s13_9=s13_8^s13;
s20_9=s20_8^s20; s21_9=s21_8^s21; s22_9=s22_8^s22; s23_9=s23_8^s23;
s30_9=s30_8^s30; s31_9=s31_8^s31; s32_9=s32_8^s32; s33_9=s33_8^s33;
s00_b=s00_2^s00_9; s01_b=s01_2^s01_9; s02_b=s02_2^s02_9; s03_b=s03_2^s03_9;
s10_b=s10_2^s10_9; s11_b=s11_2^s11_9; s12_b=s12_2^s12_9; s13_b=s13_2^s13_9;
s20_b=s20_2^s20_9; s21_b=s21_2^s21_9; s22_b=s22_2^s22_9; s23_b=s23_2^s23_9;
s30_b=s30_2^s30_9; s31_b=s31_2^s31_9; s32_b=s32_2^s32_9; s33_b=s33_2^s33_9;
s00_d=s00_4^s00_9; s01_d=s01_4^s01_9; s02_d=s02_4^s02_9; s03_d=s03_4^s03_9;
s10_d=s10_4^s10_9; s11_d=s11_4^s11_9; s12_d=s12_4^s12_9; s13_d=s13_4^s13_9;
s20_d=s20_4^s20_9; s21_d=s21_4^s21_9; s22_d=s22_4^s22_9; s23_d=s23_4^s23_9;
s30_d=s30_4^s30_9; s31_d=s31_4^s31_9; s32_d=s32_4^s32_9; s33_d=s33_4^s33_9;
s00_e=s00_2^s00_4^s00_8; s01_e=s01_2^s01_4^s01_8; s02_e=s02_2^s02_4^s02_8; s03_e=s03_2^s03_4^s03_8;
s10_e=s10_2^s10_4^s10_8; s11_e=s11_2^s11_4^s11_8; s12_e=s12_2^s12_4^s12_8; s13_e=s13_2^s13_4^s13_8;
s20_e=s20_2^s20_4^s20_8; s21_e=s21_2^s21_4^s21_8; s22_e=s22_2^s22_4^s22_8; s23_e=s23_2^s23_4^s23_8;
s30_e=s30_2^s30_4^s30_8; s31_e=s31_2^s31_4^s31_8; s32_e=s32_2^s32_4^s32_8; s33_e=s33_2^s33_4^s33_8;
i=10;
end
10://lie hun he(mixcolumns)
begin
//cal
x00<=(s00_e)^(s10_b)^(s20_d)^(s30_9);
x01<=(s01_e)^(s11_b)^(s21_d)^(s31_9);
x02<=(s02_e)^(s12_b)^(s22_d)^(s32_9);
x03<=(s03_e)^(s13_b)^(s23_d)^(s33_9);//row 0
x10<=(s00_9)^(s10_e)^(s20_b)^(s30_d);
x11<=(s01_9)^(s11_e)^(s21_b)^(s31_d);
x12<=(s02_9)^(s12_e)^(s22_b)^(s32_d);
x13<=(s03_9)^(s13_e)^(s23_b)^(s33_d);//row 1
x20<=(s00_d)^(s10_9)^(s20_e)^(s30_b);
x21<=(s01_d)^(s11_9)^(s21_e)^(s31_b);
x22<=(s02_d)^(s12_9)^(s22_e)^(s32_b);
x23<=(s03_d)^(s13_9)^(s23_e)^(s33_b);//row 2
x30<=(s00_b)^(s10_d)^(s20_9)^(s30_e);
x31<=(s01_b)^(s11_d)^(s21_9)^(s31_e);
x32<=(s02_b)^(s12_d)^(s22_9)^(s32_e);
x33<=(s03_b)^(s13_d)^(s23_9)^(s33_e);//row 3
i<=6;
end
11://
begin
mingwen00<=x00;mingwen01<=x01;mingwen02<=x02;mingwen03<=x03;
mingwen10<=x10;mingwen11<=x11;mingwen12<=x12;mingwen13<=x13;
mingwen20<=x20;mingwen21<=x21;mingwen22<=x22;mingwen23<=x23;
mingwen30<=x30;mingwen31<=x31;mingwen32<=x32;mingwen33<=x33;
end
endcase
end
end
end
endmodule
AES解码的测试代码
`timescale 1ns/1ns
module tb();
reg [7:0] mingwen00,mingwen01,mingwen02,mingwen03;
reg [7:0] mingwen10,mingwen11,mingwen12,mingwen13;
reg [7:0] mingwen20,mingwen21,mingwen22,mingwen23;
reg [7:0] mingwen30,mingwen31,mingwen32,mingwen33;
reg clk;
reg rst_n;
reg [7:0] miyao00,miyao01,miyao02,miyao03;
reg [7:0] miyao10,miyao11,miyao12,miyao13;
reg [7:0] miyao20,miyao21,miyao22,miyao23;
reg [7:0] miyao30,miyao31,miyao32,miyao33;
reg key;
wire [7:0] miwen00,miwen01,miwen02,miwen03;
wire [7:0] miwen10,miwen11,miwen12,miwen13;
wire [7:0] miwen20,miwen21,miwen22,miwen23;
wire [7:0] miwen30,miwen31,miwen32,miwen33;
initial begin
clk = 0;
rst_n=0;
key=0;
#100
rst_n=1;
key=1;
mingwen00<=8'hbc; mingwen01<=8'he0; mingwen02<=8'h55; mingwen03<=8'he6;
mingwen10<=8'h02; mingwen11<=8'he3; mingwen12<=8'h0d; mingwen13<=8'hf1;
mingwen20<=8'h8b; mingwen21<=8'hb1; mingwen22<=8'h6d; mingwen23<=8'h82;
mingwen30<=8'hd3; mingwen31<=8'h95; mingwen32<=8'hf8; mingwen33<=8'h41;
miyao00<=8'h24;miyao01<=8'h34;miyao02<=8'h31;miyao03<=8'h13;
miyao10<=8'h75;miyao11<=8'h75;miyao12<=8'he2;miyao13<=8'haa;
miyao20<=8'ha2;miyao21<=8'h56;miyao22<=8'h12;miyao23<=8'h54;
miyao30<=8'hb3;miyao31<=8'h88;miyao32<=8'h00;miyao33<=8'h87;
#10000
$display("\tmingwen00=%h,mingwen01=%h,mingwen02=%h,mingwen03=%h,",miwen00,miwen01,miwen02,miwen03);
$display("\tmingwen10=%h,mingwen11=%h,mingwen12=%h,mingwen13=%h,",miwen10,miwen11,miwen12,miwen13);//00 04 12 14 12 04 12 00 0c 00 13 11 08 23 19 19
$display("\tmingwen20=%h,mingwen21=%h,mingwen22=%h,mingwen23=%h,",miwen20,miwen21,miwen22,miwen23);//24 75 a2 b3 34 75 56 88 31 e2 12 00 13 aa 54 87
$display("\tmingwen30=%h,mingwen31=%h,mingwen32=%h,mingwen33=%h,",miwen30,miwen31,miwen32,miwen33);//bc 02 8b d3 e0 e3 b1 95 55 0d 6d f8 e6 f1 82 41
$stop;
end
always #10 clk = ~clk;
AES_back U(
mingwen00,mingwen01,mingwen02,mingwen03,
mingwen10,mingwen11,mingwen12,mingwen13,
mingwen20,mingwen21,mingwen22,mingwen23,
mingwen30,mingwen31,mingwen32,mingwen33,
clk,rst_n,
miyao00,miyao01,miyao02,miyao03,
miyao10,miyao11,miyao12,miyao13,
miyao20,miyao21,miyao22,miyao23,
miyao30,miyao31,miyao32,miyao33,
key,
miwen00,miwen01,miwen02,miwen03,
miwen10,miwen11,miwen12,miwen13,
miwen20,miwen21,miwen22,miwen23,
miwen30,miwen31,miwen32,miwen33);
endmodule
敲代码挺快乐的，哈哈
原理补充（仅借鉴）
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