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fanatid |
`timescale 1ns / 1ps
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module gost89_cfb_tb;
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reg clk;
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always
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#1 clk = ~clk;
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reg [511:0] sbox = 512'h 4a92d80e6b1c7f53eb4c6dfa23810759581da342efc7609b7da1089fe46cb2536c715fd84a9e03b24ba0721d36859cfedb413f590ae7682c1fd057a4923e6b8c;
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reg [255:0] key = 256'h 0475f6e05038fbfad2c7c390edb3ca3d1547124291ae1e8a2f79cd9ed2bcefbd;
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wire mode_e = 0, mode_d = 1;
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reg reset;
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reg load_data;
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reg [63:0] in_e1, in_e2, in_d1, in_d2;
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wire [63:0] out_e1, out_e2, out_d1, out_d2;
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wire busy_e1, busy_e2, busy_d1, busy_d2;
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gost89_cfb
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cfb1(clk, reset, mode_e, load_data, sbox, key, in_e1, out_e1, busy_e1),
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cfb2(clk, reset, mode_d, load_data, sbox, key, in_d1, out_d1, busy_d1);
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gost89_cfb_encrypt
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cfb_encrypt1(clk, reset, load_data, sbox, key, in_e2, out_e2, busy_e2);
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gost89_cfb_decrypt
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cfb_decrypt1(clk, reset, load_data, sbox, key, in_d2, out_d2, busy_d2);
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/*
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CFB mode (gamma: 6aa0379517bb57af):
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8d437364581af0da 12911df3eddcc0fb b73369c4b5cf3e7d
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54826055ab718bc7 585ddacf1a45e472 a3ec5a4eb4359095
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CFB mode (gamma: fa5679a45f118aed):
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419677a6eff07f2f 4f40b75be8e64341 cd02e6ef903d27da
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27d3e781cc4fcf43 9c7480fb9ea9df69 458ff5081b0fd688
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*/
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initial begin
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$dumpfile("gost89_cfb_tb.vcd");
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$dumpvars(0, gost89_cfb_tb);
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clk = 0;
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reset = 0;
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load_data = 0;
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// Normal usage
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#1;
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in_e1 = 64'h 6aa0379517bb57af; in_d1 = 64'h 6aa0379517bb57af;
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in_e2 = 64'h 6aa0379517bb57af; in_d2 = 64'h 6aa0379517bb57af;
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reset = 1;
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#2;
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reset = 0;
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in_e1 = 64'h 8d437364581af0da; in_d1 = 64'h 54826055ab718bc7;
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in_e2 = 64'h 8d437364581af0da; in_d2 = 64'h 54826055ab718bc7;
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load_data = 1;
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#2;
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load_data = 0;
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#68;
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if (out_e1 != out_e2 || out_e2 != 64'h 54826055ab718bc7 || out_d1 != out_d2 || out_d2 != 64'h 8d437364581af0da)
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begin $display("E"); $finish; end
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$display("OK");
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in_e1 = 64'h 12911df3eddcc0fb; in_d1 = 64'h 585ddacf1a45e472;
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in_e2 = 64'h 12911df3eddcc0fb; in_d2 = 64'h 585ddacf1a45e472;
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load_data = 1;
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#2;
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load_data = 0;
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#68;
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if (out_e1 != out_e2 || out_e2 != 64'h 585ddacf1a45e472 || out_d1 != out_d2 || out_d2 != 64'h 12911df3eddcc0fb)
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begin $display("E"); $finish; end
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$display("OK");
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// Change gamma
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#2;
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in_e1 = 64'h fa5679a45f118aed; in_d1 = 64'h fa5679a45f118aed;
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in_e2 = 64'h fa5679a45f118aed; in_d2 = 64'h fa5679a45f118aed;
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reset = 1;
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#2;
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reset = 0;
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in_e1 = 64'h 419677a6eff07f2f; in_d1 = 64'h 27d3e781cc4fcf43;
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in_e2 = 64'h 419677a6eff07f2f; in_d2 = 64'h 27d3e781cc4fcf43;
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load_data = 1;
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#2;
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load_data = 0;
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#68;
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if (out_e1 != out_e2 || out_e2 != 64'h 27d3e781cc4fcf43 || out_d1 != out_d2 || out_d2 != 64'h 419677a6eff07f2f)
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begin $display("E"); $finish; end
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$display("OK");
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// Reset in processing
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#2;
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in_e1 = 64'h 6aa0379517bb57af; in_d1 = 64'h 6aa0379517bb57af;
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in_e2 = 64'h 6aa0379517bb57af; in_d2 = 64'h 6aa0379517bb57af;
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reset = 1;
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#2;
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reset = 0;
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in_e1 = 64'h 8d437364581af0da; in_d1 = 64'h 54826055ab718bc7;
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in_e2 = 64'h 8d437364581af0da; in_d2 = 64'h 54826055ab718bc7;
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load_data = 1;
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#2;
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load_data = 0;
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#10;
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in_e1 = 64'h fa5679a45f118aed; in_d1 = 64'h fa5679a45f118aed;
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in_e2 = 64'h fa5679a45f118aed; in_d2 = 64'h fa5679a45f118aed;
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reset = 1;
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#2;
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reset = 0;
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in_e1 = 64'h 419677a6eff07f2f; in_d1 = 64'h 27d3e781cc4fcf43;
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in_e2 = 64'h 419677a6eff07f2f; in_d2 = 64'h 27d3e781cc4fcf43;
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load_data = 1;
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#2;
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load_data = 0;
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#68;
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if (out_e1 != out_e2 || out_e2 != 64'h 27d3e781cc4fcf43 || out_d1 != out_d2 || out_d2 != 64'h 419677a6eff07f2f)
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begin $display("E"); $finish; end
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$display("OK");
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#10;
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$display("All passed");
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$finish;
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end
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endmodule
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