mirror of
https://github.com/openhwgroup/cvw
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minor tweak
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@ -1,5 +1,5 @@
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///////////////////////////////////////////
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///////////////////////////////////////////
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// aes_inv_sbox.sv
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// aes_inv_sbox_word.sv
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//
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//
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// Written: ryan.swann@okstate.edu, james.stine@okstate.edu
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// Written: ryan.swann@okstate.edu, james.stine@okstate.edu
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// Created: 20 February 2024
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// Created: 20 February 2024
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@ -30,28 +30,28 @@
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module aes_inv_shiftrow(input logic [127:0] dataIn,
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module aes_inv_shiftrow(input logic [127:0] dataIn,
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output logic [127:0] dataOut);
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output logic [127:0] dataOut);
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//Seperate the first (Least Significant) word into bytes
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// Seperate the first (Least Significant) word into bytes
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logic [7:0] w0_b0 = dataIn[7:0];
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logic [7:0] w0_b0 = dataIn[7:0];
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logic [7:0] w0_b1 = dataIn[15:8];
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logic [7:0] w0_b1 = dataIn[15:8];
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logic [7:0] w0_b2 = dataIn[23:16];
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logic [7:0] w0_b2 = dataIn[23:16];
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logic [7:0] w0_b3 = dataIn[31:24];
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logic [7:0] w0_b3 = dataIn[31:24];
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//Seperate the second word into bytes
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// Seperate the second word into bytes
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logic [7:0] w1_b0 = dataIn[39:32];
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logic [7:0] w1_b0 = dataIn[39:32];
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logic [7:0] w1_b1 = dataIn[47:40];
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logic [7:0] w1_b1 = dataIn[47:40];
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logic [7:0] w1_b2 = dataIn[55:48];
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logic [7:0] w1_b2 = dataIn[55:48];
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logic [7:0] w1_b3 = dataIn[63:56];
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logic [7:0] w1_b3 = dataIn[63:56];
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//Seperate the third word into bytes
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// Seperate the third word into bytes
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logic [7:0] w2_b0 = dataIn[71:64];
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logic [7:0] w2_b0 = dataIn[71:64];
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logic [7:0] w2_b1 = dataIn[79:72];
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logic [7:0] w2_b1 = dataIn[79:72];
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logic [7:0] w2_b2 = dataIn[87:80];
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logic [7:0] w2_b2 = dataIn[87:80];
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logic [7:0] w2_b3 = dataIn[95:88];
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logic [7:0] w2_b3 = dataIn[95:88];
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//Seperate the fourth (Most significant) word into bytes
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// Seperate the fourth (Most significant) word into bytes
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logic [7:0] w3_b0 = dataIn[103:96];
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logic [7:0] w3_b0 = dataIn[103:96];
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logic [7:0] w3_b1 = dataIn[111:104];
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logic [7:0] w3_b1 = dataIn[111:104];
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logic [7:0] w3_b2 = dataIn[119:112];
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logic [7:0] w3_b2 = dataIn[119:112];
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logic [7:0] w3_b3 = dataIn[127:120];
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logic [7:0] w3_b3 = dataIn[127:120];
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//The output words are composed of sets of the input bytes.
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// The output words are composed of sets of the input bytes.
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logic [31:0] out_w0 = {w0_b3, w1_b2, w2_b1, w3_b0};
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logic [31:0] out_w0 = {w0_b3, w1_b2, w2_b1, w3_b0};
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logic [31:0] out_w1 = {w3_b3, w0_b2, w1_b1, w2_b0};
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logic [31:0] out_w1 = {w3_b3, w0_b2, w1_b1, w2_b0};
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logic [31:0] out_w2 = {w2_b3, w3_b2, w0_b1, w1_b0};
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logic [31:0] out_w2 = {w2_b3, w3_b2, w0_b1, w1_b0};
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@ -70,8 +70,7 @@ endmodule
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input selection.
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input selection.
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*/
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*/
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module aes_shiftword(input logic[1:0] shiftAmt,
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module aes_shiftword(input logic[1:0] shiftAmt, input logic [31:0] dataIn,
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input logic [31:0] dataIn,
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output logic [31:0] dataOut);
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output logic [31:0] dataOut);
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@ -83,15 +82,15 @@ module aes_shiftword(input logic[1:0] shiftAmt,
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always_comb
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always_comb
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begin
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begin
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case(shiftAmt)
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case(shiftAmt)
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//00 : Barrel Shift no bytes
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// 00 : Barrel Shift no bytes
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2'b00 : dataOut = {b3, b2, b1, b0};
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2'b00 : dataOut = {b3, b2, b1, b0};
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//01 : Barrel Shift one byte
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// 01 : Barrel Shift one byte
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2'b01 : dataOut = {b0, b3, b2, b1};
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2'b01 : dataOut = {b0, b3, b2, b1};
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//10 : Barrel Shift two bytes
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// 10 : Barrel Shift two bytes
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2'b10 : dataOut = {b1, b0, b3, b2};
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2'b10 : dataOut = {b1, b0, b3, b2};
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//11 : Barrel Shift three bytes
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// 11 : Barrel Shift three bytes
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default : dataOut = {b2, b1, b0, b3};
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default : dataOut = {b2, b1, b0, b3};
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endcase
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endcase
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end // always_comb
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end
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endmodule
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endmodule
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@ -67,7 +67,7 @@ module aes_mixcolumns(data, mixedcols);
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endmodule // mixcolumns
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endmodule // mixcolumns
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//This applies the Galois field operations to an individual 32 bit word.
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// This applies the Galois field operations to an individual 32 bit word.
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module mixword (word, mixed_word);
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module mixword (word, mixed_word);
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// Declare Inputs/Outputs
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// Declare Inputs/Outputs
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@ -97,28 +97,20 @@ module mixword (word, mixed_word);
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assign b3 = word[7:0];
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assign b3 = word[7:0];
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// mb0 Galois components
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// mb0 Galois components
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gm2 gm2_0(.gm2_in(b0),
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gm2 gm2_0(.gm2_in(b0), .gm2_out(gm2_0_out));
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.gm2_out(gm2_0_out));
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gm3 gm3_0(.gm3_in(b3), .gm3_out(gm3_0_out));
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gm3 gm3_0(.gm3_in(b3),
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.gm3_out(gm3_0_out));
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// mb1 Galois components
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// mb1 Galois components
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gm2 gm2_1(.gm2_in(b1),
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gm2 gm2_1(.gm2_in(b1), .gm2_out(gm2_1_out));
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.gm2_out(gm2_1_out));
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gm3 gm3_1(.gm3_in(b0), .gm3_out(gm3_1_out));
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gm3 gm3_1(.gm3_in(b0),
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.gm3_out(gm3_1_out));
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// mb2 Galois components
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// mb2 Galois components
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gm2 gm2_2(.gm2_in(b2),
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gm2 gm2_2(.gm2_in(b2), .gm2_out(gm2_2_out));
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.gm2_out(gm2_2_out));
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gm3 gm3_2(.gm3_in(b1), .gm3_out(gm3_2_out));
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gm3 gm3_2(.gm3_in(b1),
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.gm3_out(gm3_2_out));
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// mb3 Galois components
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// mb3 Galois components
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gm2 gm2_3(.gm2_in(b3),
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gm2 gm2_3(.gm2_in(b3), .gm2_out(gm2_3_out));
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.gm2_out(gm2_3_out));
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gm3 gm3_3(.gm3_in(b2), .gm3_out(gm3_3_out));
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gm3 gm3_3(.gm3_in(b2),
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.gm3_out(gm3_3_out));
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// Combine Componenets into mixed word
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// Combine Componenets into mixed word
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assign mb0 = gm2_0_out ^ gm3_0_out ^ b1 ^ b2;
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assign mb0 = gm2_0_out ^ gm3_0_out ^ b1 ^ b2;
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@ -31,16 +31,12 @@ module aes_sbox_word(input logic [31:0] in,
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output logic [31:0] out);
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output logic [31:0] out);
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// Declare the SBOX for (least significant) byte 0 of the input
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// Declare the SBOX for (least significant) byte 0 of the input
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aes_sbox sbox_b0(.in(in[7:0]),
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aes_sbox sbox_b0(.in(in[7:0]), .out(out[7:0]));
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.out(out[7:0]));
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// Declare the SBOX for byte 1 of the input
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// Declare the SBOX for byte 1 of the input
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aes_sbox sbox_b1(.in(in[15:8]),
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aes_sbox sbox_b1(.in(in[15:8]), .out(out[15:8]));
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.out(out[15:8]));
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// Declare the SBOX for byte 2 of the input
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// Declare the SBOX for byte 2 of the input
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aes_sbox sbox_b2(.in(in[23:16]),
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aes_sbox sbox_b2(.in(in[23:16]), .out(out[23:16]));
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.out(out[23:16]));
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// Declare the SBOX for byte 3 of the input
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// Declare the SBOX for byte 3 of the input
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aes_sbox sbox_b3(.in(in[31:24]),
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aes_sbox sbox_b3(.in(in[31:24]), .out(out[31:24]));
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.out(out[31:24]));
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endmodule
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endmodule
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@ -33,32 +33,31 @@ module aes_shiftrow(input logic [127:0] dataIn,
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// (This form of writing it may seem like more effort but I feel
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// (This form of writing it may seem like more effort but I feel
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// like it is more self-explanatory this way without losing efficiency)
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// like it is more self-explanatory this way without losing efficiency)
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//Seperate the first (Least Significant) word into bytes
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// Seperate the first (Least Significant) word into bytes
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logic [7:0] w0_b0 = dataIn[7:0];
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logic [7:0] w0_b0 = dataIn[7:0];
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logic [7:0] w0_b1 = dataIn[79:72];
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logic [7:0] w0_b1 = dataIn[79:72];
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logic [7:0] w0_b2 = dataIn[23:16];
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logic [7:0] w0_b2 = dataIn[23:16];
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logic [7:0] w0_b3 = dataIn[95:88];
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logic [7:0] w0_b3 = dataIn[95:88];
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//Seperate the second word into bytes
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// Seperate the second word into bytes
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logic [7:0] w1_b0 = dataIn[39:32];
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logic [7:0] w1_b0 = dataIn[39:32];
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logic [7:0] w1_b1 = dataIn[111:104];
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logic [7:0] w1_b1 = dataIn[111:104];
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logic [7:0] w1_b2 = dataIn[55:48];
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logic [7:0] w1_b2 = dataIn[55:48];
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logic [7:0] w1_b3 = dataIn[127:120];
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logic [7:0] w1_b3 = dataIn[127:120];
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//Seperate the third word into bytes
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// Seperate the third word into bytes
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logic [7:0] w2_b0 = dataIn[71:64];
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logic [7:0] w2_b0 = dataIn[71:64];
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logic [7:0] w2_b1 = dataIn[15:8];
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logic [7:0] w2_b1 = dataIn[15:8];
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logic [7:0] w2_b2 = dataIn[87:80];
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logic [7:0] w2_b2 = dataIn[87:80];
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logic [7:0] w2_b3 = dataIn[31:24];
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logic [7:0] w2_b3 = dataIn[31:24];
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//Seperate the fourth (Most significant) word into bytes
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// Seperate the fourth (Most significant) word into bytes
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logic [7:0] w3_b0 = dataIn[103:96];
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logic [7:0] w3_b0 = dataIn[103:96];
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logic [7:0] w3_b1 = dataIn[47:40];
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logic [7:0] w3_b1 = dataIn[47:40];
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logic [7:0] w3_b2 = dataIn[119:112];
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logic [7:0] w3_b2 = dataIn[119:112];
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logic [7:0] w3_b3 = dataIn[63:56];
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logic [7:0] w3_b3 = dataIn[63:56];
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// The output words are composed of sets of the input bytes.
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//The output words are composed of sets of the input bytes.
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logic [31:0] out_w0 = {w0_b3, w1_b2, w2_b1, w3_b0};
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logic [31:0] out_w0 = {w0_b3, w1_b2, w2_b1, w3_b0};
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logic [31:0] out_w1 = {w3_b3, w0_b2, w1_b1, w2_b0};
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logic [31:0] out_w1 = {w3_b3, w0_b2, w1_b1, w2_b0};
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logic [31:0] out_w2 = {w2_b3, w3_b2, w0_b1, w1_b0};
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logic [31:0] out_w2 = {w2_b3, w3_b2, w0_b1, w1_b0};
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logic [31:0] out_w3 = {w1_b3, w2_b2, w3_b1, w0_b0};
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logic [31:0] out_w3 = {w1_b3, w2_b2, w3_b1, w0_b0};
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assign dataOut = {out_w0, out_w1, out_w2, out_w3};
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assign dataOut = {out_w0, out_w1, out_w2, out_w3};
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@ -84,13 +83,13 @@ module aes_shiftwordbrutherr(input logic[1:0] shiftAmt,
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always_comb
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always_comb
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begin
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begin
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case(shiftAmt)
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case(shiftAmt)
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//00 : Barrel Shift no bytes
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// 00 : Barrel Shift no bytes
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2'b00 : dataOut = {b3, b2, b1, b0};
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2'b00 : dataOut = {b3, b2, b1, b0};
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//01 : Barrel Shift one byte
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// 01 : Barrel Shift one byte
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2'b01 : dataOut = {b2, b1, b0, b3};
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2'b01 : dataOut = {b2, b1, b0, b3};
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//10 : Barrel Shift two bytes
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// 10 : Barrel Shift two bytes
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2'b10 : dataOut = {b1, b0, b2, b3};
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2'b10 : dataOut = {b1, b0, b2, b3};
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//11 : Barrel Shift three bytes
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// 11 : Barrel Shift three bytes
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default : dataOut = {b0, b1, b2, b3};
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default : dataOut = {b0, b1, b2, b3};
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endcase
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endcase
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end
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end
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@ -1,5 +1,5 @@
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///////////////////////////////////////////
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///////////////////////////////////////////
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// galois_func.sv
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// Galois_func.sv
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//
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//
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// Written: ryan.swann@okstate.edu, james.stine@okstate.edu
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// Written: ryan.swann@okstate.edu, james.stine@okstate.edu
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// Created: 20 February 2024
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// Created: 20 February 2024
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@ -35,7 +35,7 @@ module gm2 (gm2_in, gm2_out);
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// Set output to Galois Mult 2
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// Set output to Galois Mult 2
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assign gm2_out = {gm2_in[6:0], 1'b0} ^ (8'h1b & {8{gm2_in[7]}});
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assign gm2_out = {gm2_in[6:0], 1'b0} ^ (8'h1b & {8{gm2_in[7]}});
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endmodule // gm2
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endmodule
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module gm3 (gm3_in, gm3_out);
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module gm3 (gm3_in, gm3_out);
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@ -63,10 +63,8 @@ module gm4 (gm4_in, gm4_out);
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logic [7:0] gm2_1_out;
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logic [7:0] gm2_1_out;
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// Sub-Modules for multiple gm2 multiplications
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// Sub-Modules for multiple gm2 multiplications
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gm2 gm2_0 (.gm2_in(gm4_in),
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gm2 gm2_0 (.gm2_in(gm4_in), .gm2_out(gm2_0_out));
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.gm2_out(gm2_0_out));
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gm2 gm2_1 (.gm2_in(gm2_0_out), .gm2_out(gm2_1_out));
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gm2 gm2_1 (.gm2_in(gm2_0_out),
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.gm2_out(gm2_1_out));
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// Assign output to second gm2 output
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// Assign output to second gm2 output
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assign gm4_out = gm2_1_out;
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assign gm4_out = gm2_1_out;
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@ -82,16 +80,14 @@ module gm8 (gm8_in, gm8_out);
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logic [7:0] gm2_0_out;
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logic [7:0] gm2_0_out;
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logic [7:0] gm4_0_out;
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logic [7:0] gm4_0_out;
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// Sub-Modules for sub-galois operations
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// Sub-Modules for sub-Galois operations
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gm4 gm4_0 (.gm4_in(gm8_in),
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gm4 gm4_0 (.gm4_in(gm8_in), .gm4_out(gm4_0_out));
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.gm4_out(gm4_0_out));
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gm2 gm2_0 (.gm2_in(gm4_0_out), .gm2_out(gm2_0_out));
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gm2 gm2_0 (.gm2_in(gm4_0_out),
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.gm2_out(gm2_0_out));
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// Assign output to gm2 output
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// Assign output to gm2 output
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assign gm8_out = gm2_0_out;
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assign gm8_out = gm2_0_out;
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endmodule // gm8
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endmodule
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module gm9 (gm9_in, gm9_out);
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module gm9 (gm9_in, gm9_out);
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@ -101,7 +97,7 @@ module gm9 (gm9_in, gm9_out);
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// Internal Logic
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// Internal Logic
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logic [7:0] gm8_0_out;
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logic [7:0] gm8_0_out;
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// Sub-Modules for sub-galois operations
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// Sub-Modules for sub-Galois operations
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gm8 gm8_0 (.gm8_in(gm9_in), .gm8_out(gm8_0_out));
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gm8 gm8_0 (.gm8_in(gm9_in), .gm8_out(gm8_0_out));
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// Set output to gm8(in) ^ in
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// Set output to gm8(in) ^ in
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@ -118,14 +114,14 @@ module gm11 (gm11_in, gm11_out);
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logic [7:0] gm8_0_out;
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logic [7:0] gm8_0_out;
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logic [7:0] gm2_0_out;
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logic [7:0] gm2_0_out;
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// Sub-Modules for sub-galois operations
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// Sub-Modules for sub-Galois operations
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gm8 gm8_0 (.gm8_in(gm11_in), .gm8_out(gm8_0_out));
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gm8 gm8_0 (.gm8_in(gm11_in), .gm8_out(gm8_0_out));
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gm2 gm2_0 (.gm2_in(gm11_in), .gm2_out(gm2_0_out));
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gm2 gm2_0 (.gm2_in(gm11_in), .gm2_out(gm2_0_out));
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// Set output to gm8(in) ^ gm2(in) ^ in
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// Set output to gm8(in) ^ gm2(in) ^ in
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assign gm11_out = gm8_0_out ^ gm2_0_out ^ gm11_in;
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assign gm11_out = gm8_0_out ^ gm2_0_out ^ gm11_in;
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endmodule // gm11
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endmodule
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module gm13 (gm13_in, gm13_out);
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module gm13 (gm13_in, gm13_out);
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@ -136,14 +132,14 @@ module gm13 (gm13_in, gm13_out);
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logic [7:0] gm8_0_out;
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logic [7:0] gm8_0_out;
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||||||
logic [7:0] gm4_0_out;
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logic [7:0] gm4_0_out;
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||||||
|
|
||||||
// Sub-Modules for sub-galois operations
|
// Sub-Modules for sub-Galois operations
|
||||||
gm8 gm8_0 (.gm8_in(gm13_in), .gm8_out(gm8_0_out));
|
gm8 gm8_0 (.gm8_in(gm13_in), .gm8_out(gm8_0_out));
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||||||
gm4 gm4_0 (.gm4_in(gm13_in), .gm4_out(gm4_0_out));
|
gm4 gm4_0 (.gm4_in(gm13_in), .gm4_out(gm4_0_out));
|
||||||
|
|
||||||
// Set output to gm8(in) ^ gm4(in) ^ in
|
// Set output to gm8(in) ^ gm4(in) ^ in
|
||||||
assign gm13_out = gm8_0_out ^ gm4_0_out ^ gm13_in;
|
assign gm13_out = gm8_0_out ^ gm4_0_out ^ gm13_in;
|
||||||
|
|
||||||
endmodule // gm13
|
endmodule
|
||||||
|
|
||||||
module gm14 (gm14_in, gm14_out);
|
module gm14 (gm14_in, gm14_out);
|
||||||
|
|
||||||
@ -155,7 +151,7 @@ module gm14 (gm14_in, gm14_out);
|
|||||||
logic [7:0] gm4_0_out;
|
logic [7:0] gm4_0_out;
|
||||||
logic [7:0] gm2_0_out;
|
logic [7:0] gm2_0_out;
|
||||||
|
|
||||||
// Sub-Modules for sub-galois operations
|
// Sub-Modules for sub-Galois operations
|
||||||
gm8 gm8_0 (.gm8_in(gm14_in), .gm8_out(gm8_0_out));
|
gm8 gm8_0 (.gm8_in(gm14_in), .gm8_out(gm8_0_out));
|
||||||
gm4 gm4_0 (.gm4_in(gm14_in), .gm4_out(gm4_0_out));
|
gm4 gm4_0 (.gm4_in(gm14_in), .gm4_out(gm4_0_out));
|
||||||
gm2 gm2_0 (.gm2_in(gm14_in), .gm2_out(gm2_0_out));
|
gm2 gm2_0 (.gm2_in(gm14_in), .gm2_out(gm2_0_out));
|
||||||
@ -163,5 +159,5 @@ module gm14 (gm14_in, gm14_out);
|
|||||||
//Assign output to gm8(in) ^ gm4(in) ^ gm2(in)
|
//Assign output to gm8(in) ^ gm4(in) ^ gm2(in)
|
||||||
assign gm14_out = gm8_0_out ^ gm4_0_out ^ gm2_0_out;
|
assign gm14_out = gm8_0_out ^ gm4_0_out ^ gm2_0_out;
|
||||||
|
|
||||||
endmodule // gm14
|
endmodule
|
||||||
|
|
||||||
|
Loading…
Reference in New Issue
Block a user