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- // ======================================================================
- // DES encryption/decryption
- // algorithm according to FIPS 46-3 specification
- // Copyright (C) 2012 Torsten Meissner
- //-----------------------------------------------------------------------
- // This program is free software; you can redistribute it and/or modify
- // it under the terms of the GNU General Public License as published by
- // the Free Software Foundation; either version 2 of the License, or
- // (at your option) any later version.
- //
- // This program is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- // GNU General Public License for more details.
- //
- // You should have received a copy of the GNU General Public License
- // along with this program; if not, write to the Free Software
- // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- // ======================================================================
-
-
-
-
- module des (
- input reset_i, // async reset
- input clk_i, // clock
- input mode_i, // des-modus: 0 = encrypt, 1 = decrypt
- input [0:63] key_i, // key input
- input [0:63] data_i, // data input
- input valid_i, // input key/data valid flag
- output reg [0:63] data_o, // data output
- output reg valid_o // output data valid flag
- );
-
-
- endmodule
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