DESTop

module DESTop (
	input wire [0:31] MessageH,
    input wire [0:31] MessageL,
	input wire [0:31] KeyH,
    input wire [0:31] KeyL,
	input wire enable_i,
	input wire clk_i,
	output reg [0:31] OutputH,
    output reg [0:31] OutputL,
	output wire done_o
	);

    reg [0:63] Message;
    reg [0:63] Key;
    wire [0:63] Output;

    DES DesGen
    (
        .input_i(Message),
        .key_i(Key),
        .enable_i(enable_i),
        .clk_i(clk_i),
        .output_o(Output),
        .done_o(done_o)
    );

    always @ * begin
        OutputH  = Output[0:31];
        OutputL = Output[32:63];
        Message = {MessageH, MessageL};
        Key = {KeyH, KeyL};
    end
endmodule