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_256;

        // Inputs

        reg clk;

        reg [127:0] state;

        reg [255:0] key;

        // Outputs

        wire [127:0] out;

        // Instantiate the Unit Under Test (UUT)

        aes_256 uut (

                .clk(clk),

                .state(state),

                .key(key),

                .out(out)

        );

        initial begin

                clk = 0;

                state = 0;

                key = 0;

                #100;

        @ (negedge clk);

        state = 128'h3243f6a8885a308d313198a2e0370734;

        key   = 256'h2b7e151628aed2a6abf7158809cf4f3c_762e7160f38b4da56a784d9045190cfe;

        #10;

        state = 128'h00112233445566778899aabbccddeeff;

        key   = 256'h000102030405060708090a0b0c0d0e0f_101112131415161718191a1b1c1d1e1f;

        #10;

        state = 128'h0;

        key   = 256'h0;

        #270;

        if (out !== 128'h1a6e6c2c_662e7da6_501ffb62_bc9e93f3)

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

        #10;

        if (out !== 128'h8ea2b7ca_516745bf_eafc4990_4b496089)

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

        $display("Good.");

        $finish;

        end

    always #5 clk = ~clk;

endmodule