cryptography ip-cores in vhdl / verilog
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-- ======================================================================
-- AES encryption/decryption
-- algorithm according to FIPS 197 specification
-- Copyright (C) 2011 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
-- ======================================================================
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
use work.aes_pkg.all;
entity aes is
generic (
ovl_enable : in boolean
);
port (
reset_i : in std_logic; -- async reset
clk_i : in std_logic; -- clock
mode_i : in std_logic; -- aes-modus: 0 = encrypt, 1 = decrypt
key_i : in std_logic_vector(0 TO 127); -- key input
data_i : in std_logic_vector(0 TO 127); -- data input
valid_i : in std_logic; -- input key/data valid flag
data_o : out std_logic_vector(0 TO 127); -- data output
valid_o : out std_logic -- output data valid flag
);
end entity aes;
architecture rtl of aes is
begin
end architecture rtl;