Subversion Repositories tiny_aes

/*

 * Copyright 2012, Homer Hsing <homer.hsing@gmail.com>

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 * http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

`timescale 1ns / 1ps

module test_aes_128;

        // Inputs

        reg clk;

        reg [127:0] state;

        reg [127:0] key;

        // Outputs

        wire [127:0] out;

        // Instantiate the Unit Under Test (UUT)

        aes_128 uut (

                .clk(clk),

                .state(state),

                .key(key),

                .out(out)

        );

        initial begin

                clk = 0;

                state = 0;

                key = 0;

                #100;

        /*

         * TIMEGRP "key" OFFSET = IN 6.4 ns VALID 6 ns AFTER "clk" HIGH;

         * TIMEGRP "state" OFFSET = IN 6.4 ns VALID 6 ns AFTER "clk" HIGH;

         * TIMEGRP "out" OFFSET = OUT 2.2 ns BEFORE "clk" HIGH;

         */

        @ (negedge clk);

        # 2;

        state = 128'h3243f6a8_885a308d_313198a2_e0370734;

        key   = 128'h2b7e1516_28aed2a6_abf71588_09cf4f3c;

        #10;

        state = 128'h00112233_44556677_8899aabb_ccddeeff;

        key   = 128'h00010203_04050607_08090a0b_0c0d0e0f;

        #10;

        state = 128'h0;

        key   = 128'h0;

        #10;

        state = 128'h0;

        key   = 128'h1;

        #10;

        state = 128'h1;

        key   = 128'h0;

        #170;

        if (out !== 128'h3925841d02dc09fbdc118597196a0b32)

          begin $display("E"); $finish; end

        #10;

        if (out !== 128'h69_c4_e0_d8_6a_7b_04_30_d8_cd_b7_80_70_b4_c5_5a)

          begin $display("E"); $finish; end

        #10;

        if (out !== 128'h66_e9_4b_d4_ef_8a_2c_3b_88_4c_fa_59_ca_34_2b_2e)

          begin $display("E"); $finish; end

        #10;

        if (out !== 128'h05_45_aa_d5_6d_a2_a9_7c_36_63_d1_43_2a_3d_1c_84)

          begin $display("E"); $finish; end

        #10;

        if (out !== 128'h58_e2_fc_ce_fa_7e_30_61_36_7f_1d_57_a4_e7_45_5a)

          begin $display("E"); $finish; end

        $display("Good.");

        $finish;

        end

    always #5 clk = ~clk;

endmodule