--*************************************************************************
|
--*************************************************************************
|
-- Project : AES128 *
|
-- Project : AES128 *
|
-- *
|
-- *
|
-- Block Name : aes_package.vhd *
|
-- Block Name : aes_package.vhd *
|
-- *
|
-- *
|
-- Author : Hemanth Satyanarayana *
|
-- Author : Hemanth Satyanarayana *
|
-- *
|
-- *
|
-- Email : hemanth@opencores.org *
|
-- Email : hemanth@opencores.org *
|
-- *
|
-- *
|
-- Description: Package containing state array type declaration, *
|
-- Description: Package containing state array type declaration, *
|
-- S-box functions and Mix columns routine for *
|
-- S-box functions and Mix columns routine for *
|
-- rtl modules. *
|
-- rtl modules. *
|
-- *
|
-- *
|
-- Revision History *
|
-- Revision History *
|
-- |-----------|-------------|---------|---------------------------------|*
|
-- |-----------|-------------|---------|---------------------------------|*
|
-- | Name | Date | Version | Revision details |*
|
-- | Name | Date | Version | Revision details |*
|
-- |-----------|-------------|---------|---------------------------------|*
|
-- |-----------|-------------|---------|---------------------------------|*
|
-- | Hemanth | 15-Dec-2004 | 1.1.1.1 | Uploaded |*
|
-- | Hemanth | 15-Dec-2004 | 1.1.1.1 | Uploaded |*
|
-- |-----------|-------------|---------|---------------------------------|*
|
-- |-----------|-------------|---------|---------------------------------|*
|
-- *
|
-- *
|
-- Refer FIPS-197 document for details *
|
-- Refer FIPS-197 document for details *
|
--*************************************************************************
|
--*************************************************************************
|
-- *
|
-- *
|
-- Copyright (C) 2004 Author *
|
-- Copyright (C) 2004 Author *
|
-- *
|
-- *
|
-- This source file may be used and distributed without *
|
-- This source file may be used and distributed without *
|
-- restriction provided that this copyright statement is not *
|
-- restriction provided that this copyright statement is not *
|
-- removed from the file and that any derivative work contains *
|
-- removed from the file and that any derivative work contains *
|
-- the original copyright notice and the associated disclaimer. *
|
-- the original copyright notice and the associated disclaimer. *
|
-- *
|
-- *
|
-- This source file is free software; you can redistribute it *
|
-- This source file is free software; you can redistribute it *
|
-- and/or modify it under the terms of the GNU Lesser General *
|
-- and/or modify it under the terms of the GNU Lesser General *
|
-- Public License as published by the Free Software Foundation; *
|
-- Public License as published by the Free Software Foundation; *
|
-- either version 2.1 of the License, or (at your option) any *
|
-- either version 2.1 of the License, or (at your option) any *
|
-- later version. *
|
-- later version. *
|
-- *
|
-- *
|
-- This source is distributed in the hope that it will be *
|
-- This source is distributed in the hope that it will be *
|
-- useful, but WITHOUT ANY WARRANTY; without even the implied *
|
-- useful, but WITHOUT ANY WARRANTY; without even the implied *
|
-- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR *
|
-- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR *
|
-- PURPOSE. See the GNU Lesser General Public License for more *
|
-- PURPOSE. See the GNU Lesser General Public License for more *
|
-- details. *
|
-- details. *
|
-- *
|
-- *
|
-- You should have received a copy of the GNU Lesser General *
|
-- You should have received a copy of the GNU Lesser General *
|
-- Public License along with this source; if not, download it *
|
-- Public License along with this source; if not, download it *
|
-- from http://www.opencores.org/lgpl.shtml *
|
-- from http://www.opencores.org/lgpl.shtml *
|
-- *
|
-- *
|
--*************************************************************************
|
--*************************************************************************
|
|
|
library ieee;
|
library ieee;
|
use ieee.std_logic_1164.all;
|
use ieee.std_logic_1164.all;
|
use ieee.std_logic_unsigned.all;
|
use ieee.std_logic_unsigned.all;
|
|
|
package aes_package is
|
package aes_package is
|
|
|
-- This data type is declared to make all operations on a vector of 4 bytes ecach
|
-- This data type is declared to make all operations on a vector of 4 bytes ecach
|
-- refer fips-197 doc, sec 3.5
|
-- refer fips-197 doc, sec 3.5
|
type state_array_type is array (0 to 3) of std_logic_vector(7 downto 0);
|
type state_array_type is array (0 to 3) of std_logic_vector(7 downto 0);
|
|
|
-- S-Box look up function
|
-- S-Box look up function
|
function sbox_val(address: std_logic_vector(7 downto 0)) return std_logic_vector;
|
function sbox_val(address: std_logic_vector(7 downto 0)) return std_logic_vector;
|
-- Inverse S-Box look up function
|
-- Inverse S-Box look up function
|
function inv_sbox_val(address: std_logic_vector(7 downto 0)) return std_logic_vector;
|
function inv_sbox_val(address: std_logic_vector(7 downto 0)) return std_logic_vector;
|
-- column generation fucntion for Mix columns routine
|
-- column generation fucntion for Mix columns routine
|
function col_transform(p: state_array_type) return std_logic_vector;
|
function col_transform(p: state_array_type) return std_logic_vector;
|
-- column generation fucntion for Inverse Mix columns routine
|
-- column generation fucntion for Inverse Mix columns routine
|
function col_inv_transform(s: state_array_type) return std_logic_vector;
|
function col_inv_transform(s: state_array_type) return std_logic_vector;
|
-- Mix Columns function
|
-- Mix Columns function
|
function mix_cols_routine
|
function mix_cols_routine
|
(
|
(
|
a_r0 : state_array_type;
|
a_r0 : state_array_type;
|
a_r1 : state_array_type;
|
a_r1 : state_array_type;
|
a_r2 : state_array_type;
|
a_r2 : state_array_type;
|
a_r3 : state_array_type;
|
a_r3 : state_array_type;
|
mode : std_logic
|
mode : std_logic
|
)
|
)
|
return std_logic_vector;
|
return std_logic_vector;
|
|
|
end aes_package;
|
end aes_package;
|
|
|
package body aes_package is
|
package body aes_package is
|
|
|
function sbox_val(address: std_logic_vector(7 downto 0)) return std_logic_vector is
|
function sbox_val(address: std_logic_vector(7 downto 0)) return std_logic_vector is
|
variable data: bit_vector(7 downto 0);
|
variable data: bit_vector(7 downto 0);
|
variable data_stdlogic: std_logic_vector(7 downto 0);
|
variable data_stdlogic: std_logic_vector(7 downto 0);
|
begin
|
begin
|
case address is
|
case address is
|
|
|
when "00000000" => data := X"63";
|
when "00000000" => data := X"63";
|
when "00000001" => data := X"7C";
|
when "00000001" => data := X"7C";
|
when "00000010" => data := X"77";
|
when "00000010" => data := X"77";
|
when "00000011" => data := X"7B";
|
when "00000011" => data := X"7B";
|
when "00000100" => data := X"F2";
|
when "00000100" => data := X"F2";
|
when "00000101" => data := X"6B";
|
when "00000101" => data := X"6B";
|
when "00000110" => data := X"6F";
|
when "00000110" => data := X"6F";
|
when "00000111" => data := X"C5";
|
when "00000111" => data := X"C5";
|
when "00001000" => data := X"30";
|
when "00001000" => data := X"30";
|
when "00001001" => data := X"01";
|
when "00001001" => data := X"01";
|
when "00001010" => data := X"67";
|
when "00001010" => data := X"67";
|
when "00001011" => data := X"2B";
|
when "00001011" => data := X"2B";
|
when "00001100" => data := X"FE";
|
when "00001100" => data := X"FE";
|
when "00001101" => data := X"D7";
|
when "00001101" => data := X"D7";
|
when "00001110" => data := X"AB";
|
when "00001110" => data := X"AB";
|
when "00001111" => data := X"76";
|
when "00001111" => data := X"76";
|
when "00010000" => data := X"CA";
|
when "00010000" => data := X"CA";
|
when "00010001" => data := X"82";
|
when "00010001" => data := X"82";
|
when "00010010" => data := X"C9";
|
when "00010010" => data := X"C9";
|
when "00010011" => data := X"7D";
|
when "00010011" => data := X"7D";
|
when "00010100" => data := X"FA";
|
when "00010100" => data := X"FA";
|
when "00010101" => data := X"59";
|
when "00010101" => data := X"59";
|
when "00010110" => data := X"47";
|
when "00010110" => data := X"47";
|
when "00010111" => data := X"F0";
|
when "00010111" => data := X"F0";
|
when "00011000" => data := X"AD";
|
when "00011000" => data := X"AD";
|
when "00011001" => data := X"D4";
|
when "00011001" => data := X"D4";
|
when "00011010" => data := X"A2";
|
when "00011010" => data := X"A2";
|
when "00011011" => data := X"AF";
|
when "00011011" => data := X"AF";
|
when "00011100" => data := X"9C";
|
when "00011100" => data := X"9C";
|
when "00011101" => data := X"A4";
|
when "00011101" => data := X"A4";
|
when "00011110" => data := X"72";
|
when "00011110" => data := X"72";
|
when "00011111" => data := X"C0";
|
when "00011111" => data := X"C0";
|
when "00100000" => data := X"B7";
|
when "00100000" => data := X"B7";
|
when "00100001" => data := X"FD";
|
when "00100001" => data := X"FD";
|
when "00100010" => data := X"93";
|
when "00100010" => data := X"93";
|
when "00100011" => data := X"26";
|
when "00100011" => data := X"26";
|
when "00100100" => data := X"36";
|
when "00100100" => data := X"36";
|
when "00100101" => data := X"3F";
|
when "00100101" => data := X"3F";
|
when "00100110" => data := X"F7";
|
when "00100110" => data := X"F7";
|
when "00100111" => data := X"CC";
|
when "00100111" => data := X"CC";
|
when "00101000" => data := X"34";
|
when "00101000" => data := X"34";
|
when "00101001" => data := X"A5";
|
when "00101001" => data := X"A5";
|
when "00101010" => data := X"E5";
|
when "00101010" => data := X"E5";
|
when "00101011" => data := X"F1";
|
when "00101011" => data := X"F1";
|
when "00101100" => data := X"71";
|
when "00101100" => data := X"71";
|
when "00101101" => data := X"D8";
|
when "00101101" => data := X"D8";
|
when "00101110" => data := X"31";
|
when "00101110" => data := X"31";
|
when "00101111" => data := X"15";
|
when "00101111" => data := X"15";
|
when "00110000" => data := X"04";
|
when "00110000" => data := X"04";
|
when "00110001" => data := X"C7";
|
when "00110001" => data := X"C7";
|
when "00110010" => data := X"23";
|
when "00110010" => data := X"23";
|
when "00110011" => data := X"C3";
|
when "00110011" => data := X"C3";
|
when "00110100" => data := X"18";
|
when "00110100" => data := X"18";
|
when "00110101" => data := X"96";
|
when "00110101" => data := X"96";
|
when "00110110" => data := X"05";
|
when "00110110" => data := X"05";
|
when "00110111" => data := X"9A";
|
when "00110111" => data := X"9A";
|
when "00111000" => data := X"07";
|
when "00111000" => data := X"07";
|
when "00111001" => data := X"12";
|
when "00111001" => data := X"12";
|
when "00111010" => data := X"80";
|
when "00111010" => data := X"80";
|
when "00111011" => data := X"E2";
|
when "00111011" => data := X"E2";
|
when "00111100" => data := X"EB";
|
when "00111100" => data := X"EB";
|
when "00111101" => data := X"27";
|
when "00111101" => data := X"27";
|
when "00111110" => data := X"B2";
|
when "00111110" => data := X"B2";
|
when "00111111" => data := X"75";
|
when "00111111" => data := X"75";
|
when "01000000" => data := X"09";
|
when "01000000" => data := X"09";
|
when "01000001" => data := X"83";
|
when "01000001" => data := X"83";
|
when "01000010" => data := X"2C";
|
when "01000010" => data := X"2C";
|
when "01000011" => data := X"1A";
|
when "01000011" => data := X"1A";
|
when "01000100" => data := X"1B";
|
when "01000100" => data := X"1B";
|
when "01000101" => data := X"6E";
|
when "01000101" => data := X"6E";
|
when "01000110" => data := X"5A";
|
when "01000110" => data := X"5A";
|
when "01000111" => data := X"A0";
|
when "01000111" => data := X"A0";
|
when "01001000" => data := X"52";
|
when "01001000" => data := X"52";
|
when "01001001" => data := X"3B";
|
when "01001001" => data := X"3B";
|
when "01001010" => data := X"D6";
|
when "01001010" => data := X"D6";
|
when "01001011" => data := X"B3";
|
when "01001011" => data := X"B3";
|
when "01001100" => data := X"29";
|
when "01001100" => data := X"29";
|
when "01001101" => data := X"E3";
|
when "01001101" => data := X"E3";
|
when "01001110" => data := X"2F";
|
when "01001110" => data := X"2F";
|
when "01001111" => data := X"84";
|
when "01001111" => data := X"84";
|
when "01010000" => data := X"53";
|
when "01010000" => data := X"53";
|
when "01010001" => data := X"D1";
|
when "01010001" => data := X"D1";
|
when "01010010" => data := X"00";
|
when "01010010" => data := X"00";
|
when "01010011" => data := X"ED";
|
when "01010011" => data := X"ED";
|
when "01010100" => data := X"20";
|
when "01010100" => data := X"20";
|
when "01010101" => data := X"FC";
|
when "01010101" => data := X"FC";
|
when "01010110" => data := X"B1";
|
when "01010110" => data := X"B1";
|
when "01010111" => data := X"5B";
|
when "01010111" => data := X"5B";
|
when "01011000" => data := X"6A";
|
when "01011000" => data := X"6A";
|
when "01011001" => data := X"CB";
|
when "01011001" => data := X"CB";
|
when "01011010" => data := X"BE";
|
when "01011010" => data := X"BE";
|
when "01011011" => data := X"39";
|
when "01011011" => data := X"39";
|
when "01011100" => data := X"4A";
|
when "01011100" => data := X"4A";
|
when "01011101" => data := X"4C";
|
when "01011101" => data := X"4C";
|
when "01011110" => data := X"58";
|
when "01011110" => data := X"58";
|
when "01011111" => data := X"CF";
|
when "01011111" => data := X"CF";
|
when "01100000" => data := X"D0";
|
when "01100000" => data := X"D0";
|
when "01100001" => data := X"EF";
|
when "01100001" => data := X"EF";
|
when "01100010" => data := X"AA";
|
when "01100010" => data := X"AA";
|
when "01100011" => data := X"FB";
|
when "01100011" => data := X"FB";
|
when "01100100" => data := X"43";
|
when "01100100" => data := X"43";
|
when "01100101" => data := X"4D";
|
when "01100101" => data := X"4D";
|
when "01100110" => data := X"33";
|
when "01100110" => data := X"33";
|
when "01100111" => data := X"85";
|
when "01100111" => data := X"85";
|
when "01101000" => data := X"45";
|
when "01101000" => data := X"45";
|
when "01101001" => data := X"F9";
|
when "01101001" => data := X"F9";
|
when "01101010" => data := X"02";
|
when "01101010" => data := X"02";
|
when "01101011" => data := X"7F";
|
when "01101011" => data := X"7F";
|
when "01101100" => data := X"50";
|
when "01101100" => data := X"50";
|
when "01101101" => data := X"3C";
|
when "01101101" => data := X"3C";
|
when "01101110" => data := X"9F";
|
when "01101110" => data := X"9F";
|
when "01101111" => data := X"A8";
|
when "01101111" => data := X"A8";
|
when "01110000" => data := X"51";
|
when "01110000" => data := X"51";
|
when "01110001" => data := X"A3";
|
when "01110001" => data := X"A3";
|
when "01110010" => data := X"40";
|
when "01110010" => data := X"40";
|
when "01110011" => data := X"8F";
|
when "01110011" => data := X"8F";
|
when "01110100" => data := X"92";
|
when "01110100" => data := X"92";
|
when "01110101" => data := X"9D";
|
when "01110101" => data := X"9D";
|
when "01110110" => data := X"38";
|
when "01110110" => data := X"38";
|
when "01110111" => data := X"F5";
|
when "01110111" => data := X"F5";
|
when "01111000" => data := X"BC";
|
when "01111000" => data := X"BC";
|
when "01111001" => data := X"B6";
|
when "01111001" => data := X"B6";
|
when "01111010" => data := X"DA";
|
when "01111010" => data := X"DA";
|
when "01111011" => data := X"21";
|
when "01111011" => data := X"21";
|
when "01111100" => data := X"10";
|
when "01111100" => data := X"10";
|
when "01111101" => data := X"FF";
|
when "01111101" => data := X"FF";
|
when "01111110" => data := X"F3";
|
when "01111110" => data := X"F3";
|
when "01111111" => data := X"D2";
|
when "01111111" => data := X"D2";
|
when "10000000" => data := X"CD";
|
when "10000000" => data := X"CD";
|
when "10000001" => data := X"0C";
|
when "10000001" => data := X"0C";
|
when "10000010" => data := X"13";
|
when "10000010" => data := X"13";
|
when "10000011" => data := X"EC";
|
when "10000011" => data := X"EC";
|
when "10000100" => data := X"5F";
|
when "10000100" => data := X"5F";
|
when "10000101" => data := X"97";
|
when "10000101" => data := X"97";
|
when "10000110" => data := X"44";
|
when "10000110" => data := X"44";
|
when "10000111" => data := X"17";
|
when "10000111" => data := X"17";
|
when "10001000" => data := X"C4";
|
when "10001000" => data := X"C4";
|
when "10001001" => data := X"A7";
|
when "10001001" => data := X"A7";
|
when "10001010" => data := X"7E";
|
when "10001010" => data := X"7E";
|
when "10001011" => data := X"3D";
|
when "10001011" => data := X"3D";
|
when "10001100" => data := X"64";
|
when "10001100" => data := X"64";
|
when "10001101" => data := X"5D";
|
when "10001101" => data := X"5D";
|
when "10001110" => data := X"19";
|
when "10001110" => data := X"19";
|
when "10001111" => data := X"73";
|
when "10001111" => data := X"73";
|
when "10010000" => data := X"60";
|
when "10010000" => data := X"60";
|
when "10010001" => data := X"81";
|
when "10010001" => data := X"81";
|
when "10010010" => data := X"4F";
|
when "10010010" => data := X"4F";
|
when "10010011" => data := X"DC";
|
when "10010011" => data := X"DC";
|
when "10010100" => data := X"22";
|
when "10010100" => data := X"22";
|
when "10010101" => data := X"2A";
|
when "10010101" => data := X"2A";
|
when "10010110" => data := X"90";
|
when "10010110" => data := X"90";
|
when "10010111" => data := X"88";
|
when "10010111" => data := X"88";
|
when "10011000" => data := X"46";
|
when "10011000" => data := X"46";
|
when "10011001" => data := X"EE";
|
when "10011001" => data := X"EE";
|
when "10011010" => data := X"B8";
|
when "10011010" => data := X"B8";
|
when "10011011" => data := X"14";
|
when "10011011" => data := X"14";
|
when "10011100" => data := X"DE";
|
when "10011100" => data := X"DE";
|
when "10011101" => data := X"5E";
|
when "10011101" => data := X"5E";
|
when "10011110" => data := X"0B";
|
when "10011110" => data := X"0B";
|
when "10011111" => data := X"DB";
|
when "10011111" => data := X"DB";
|
when "10100000" => data := X"E0";
|
when "10100000" => data := X"E0";
|
when "10100001" => data := X"32";
|
when "10100001" => data := X"32";
|
when "10100010" => data := X"3A";
|
when "10100010" => data := X"3A";
|
when "10100011" => data := X"0A";
|
when "10100011" => data := X"0A";
|
when "10100100" => data := X"49";
|
when "10100100" => data := X"49";
|
when "10100101" => data := X"06";
|
when "10100101" => data := X"06";
|
when "10100110" => data := X"24";
|
when "10100110" => data := X"24";
|
when "10100111" => data := X"5C";
|
when "10100111" => data := X"5C";
|
when "10101000" => data := X"C2";
|
when "10101000" => data := X"C2";
|
when "10101001" => data := X"D3";
|
when "10101001" => data := X"D3";
|
when "10101010" => data := X"AC";
|
when "10101010" => data := X"AC";
|
when "10101011" => data := X"62";
|
when "10101011" => data := X"62";
|
when "10101100" => data := X"91";
|
when "10101100" => data := X"91";
|
when "10101101" => data := X"95";
|
when "10101101" => data := X"95";
|
when "10101110" => data := X"E4";
|
when "10101110" => data := X"E4";
|
when "10101111" => data := X"79";
|
when "10101111" => data := X"79";
|
when "10110000" => data := X"E7";
|
when "10110000" => data := X"E7";
|
when "10110001" => data := X"C8";
|
when "10110001" => data := X"C8";
|
when "10110010" => data := X"37";
|
when "10110010" => data := X"37";
|
when "10110011" => data := X"6D";
|
when "10110011" => data := X"6D";
|
when "10110100" => data := X"8D";
|
when "10110100" => data := X"8D";
|
when "10110101" => data := X"D5";
|
when "10110101" => data := X"D5";
|
when "10110110" => data := X"4E";
|
when "10110110" => data := X"4E";
|
when "10110111" => data := X"A9";
|
when "10110111" => data := X"A9";
|
when "10111000" => data := X"6C";
|
when "10111000" => data := X"6C";
|
when "10111001" => data := X"56";
|
when "10111001" => data := X"56";
|
when "10111010" => data := X"F4";
|
when "10111010" => data := X"F4";
|
when "10111011" => data := X"EA";
|
when "10111011" => data := X"EA";
|
when "10111100" => data := X"65";
|
when "10111100" => data := X"65";
|
when "10111101" => data := X"7A";
|
when "10111101" => data := X"7A";
|
when "10111110" => data := X"AE";
|
when "10111110" => data := X"AE";
|
when "10111111" => data := X"08";
|
when "10111111" => data := X"08";
|
when "11000000" => data := X"BA";
|
when "11000000" => data := X"BA";
|
when "11000001" => data := X"78";
|
when "11000001" => data := X"78";
|
when "11000010" => data := X"25";
|
when "11000010" => data := X"25";
|
when "11000011" => data := X"2E";
|
when "11000011" => data := X"2E";
|
when "11000100" => data := X"1C";
|
when "11000100" => data := X"1C";
|
when "11000101" => data := X"A6";
|
when "11000101" => data := X"A6";
|
when "11000110" => data := X"B4";
|
when "11000110" => data := X"B4";
|
when "11000111" => data := X"C6";
|
when "11000111" => data := X"C6";
|
when "11001000" => data := X"E8";
|
when "11001000" => data := X"E8";
|
when "11001001" => data := X"DD";
|
when "11001001" => data := X"DD";
|
when "11001010" => data := X"74";
|
when "11001010" => data := X"74";
|
when "11001011" => data := X"1F";
|
when "11001011" => data := X"1F";
|
when "11001100" => data := X"4B";
|
when "11001100" => data := X"4B";
|
when "11001101" => data := X"BD";
|
when "11001101" => data := X"BD";
|
when "11001110" => data := X"8B";
|
when "11001110" => data := X"8B";
|
when "11001111" => data := X"8A";
|
when "11001111" => data := X"8A";
|
when "11010000" => data := X"70";
|
when "11010000" => data := X"70";
|
when "11010001" => data := X"3E";
|
when "11010001" => data := X"3E";
|
when "11010010" => data := X"B5";
|
when "11010010" => data := X"B5";
|
when "11010011" => data := X"66";
|
when "11010011" => data := X"66";
|
when "11010100" => data := X"48";
|
when "11010100" => data := X"48";
|
when "11010101" => data := X"03";
|
when "11010101" => data := X"03";
|
when "11010110" => data := X"F6";
|
when "11010110" => data := X"F6";
|
when "11010111" => data := X"0E";
|
when "11010111" => data := X"0E";
|
when "11011000" => data := X"61";
|
when "11011000" => data := X"61";
|
when "11011001" => data := X"35";
|
when "11011001" => data := X"35";
|
when "11011010" => data := X"57";
|
when "11011010" => data := X"57";
|
when "11011011" => data := X"B9";
|
when "11011011" => data := X"B9";
|
when "11011100" => data := X"86";
|
when "11011100" => data := X"86";
|
when "11011101" => data := X"C1";
|
when "11011101" => data := X"C1";
|
when "11011110" => data := X"1D";
|
when "11011110" => data := X"1D";
|
when "11011111" => data := X"9E";
|
when "11011111" => data := X"9E";
|
when "11100000" => data := X"E1";
|
when "11100000" => data := X"E1";
|
when "11100001" => data := X"F8";
|
when "11100001" => data := X"F8";
|
when "11100010" => data := X"98";
|
when "11100010" => data := X"98";
|
when "11100011" => data := X"11";
|
when "11100011" => data := X"11";
|
when "11100100" => data := X"69";
|
when "11100100" => data := X"69";
|
when "11100101" => data := X"D9";
|
when "11100101" => data := X"D9";
|
when "11100110" => data := X"8E";
|
when "11100110" => data := X"8E";
|
when "11100111" => data := X"94";
|
when "11100111" => data := X"94";
|
when "11101000" => data := X"9B";
|
when "11101000" => data := X"9B";
|
when "11101001" => data := X"1E";
|
when "11101001" => data := X"1E";
|
when "11101010" => data := X"87";
|
when "11101010" => data := X"87";
|
when "11101011" => data := X"E9";
|
when "11101011" => data := X"E9";
|
when "11101100" => data := X"CE";
|
when "11101100" => data := X"CE";
|
when "11101101" => data := X"55";
|
when "11101101" => data := X"55";
|
when "11101110" => data := X"28";
|
when "11101110" => data := X"28";
|
when "11101111" => data := X"DF";
|
when "11101111" => data := X"DF";
|
when "11110000" => data := X"8C";
|
when "11110000" => data := X"8C";
|
when "11110001" => data := X"A1";
|
when "11110001" => data := X"A1";
|
when "11110010" => data := X"89";
|
when "11110010" => data := X"89";
|
when "11110011" => data := X"0D";
|
when "11110011" => data := X"0D";
|
when "11110100" => data := X"BF";
|
when "11110100" => data := X"BF";
|
when "11110101" => data := X"E6";
|
when "11110101" => data := X"E6";
|
when "11110110" => data := X"42";
|
when "11110110" => data := X"42";
|
when "11110111" => data := X"68";
|
when "11110111" => data := X"68";
|
when "11111000" => data := X"41";
|
when "11111000" => data := X"41";
|
when "11111001" => data := X"99";
|
when "11111001" => data := X"99";
|
when "11111010" => data := X"2D";
|
when "11111010" => data := X"2D";
|
when "11111011" => data := X"0F";
|
when "11111011" => data := X"0F";
|
when "11111100" => data := X"B0";
|
when "11111100" => data := X"B0";
|
when "11111101" => data := X"54";
|
when "11111101" => data := X"54";
|
when "11111110" => data := X"BB";
|
when "11111110" => data := X"BB";
|
when "11111111" => data := X"16";
|
when "11111111" => data := X"16";
|
when others => null;
|
when others => null;
|
end case;
|
end case;
|
data_stdlogic := to_StdLogicVector(data);
|
data_stdlogic := to_StdLogicVector(data);
|
return data_stdlogic;
|
return data_stdlogic;
|
end function sbox_val;
|
end function sbox_val;
|
|
|
function inv_sbox_val(address: std_logic_vector(7 downto 0)) return std_logic_vector is
|
function inv_sbox_val(address: std_logic_vector(7 downto 0)) return std_logic_vector is
|
variable inv_data: bit_vector(7 downto 0);
|
variable inv_data: bit_vector(7 downto 0);
|
variable inv_data_stdlogic: std_logic_vector(7 downto 0);
|
variable inv_data_stdlogic: std_logic_vector(7 downto 0);
|
begin
|
begin
|
case address is
|
case address is
|
|
|
when "00000000" => inv_data := X"52";
|
when "00000000" => inv_data := X"52";
|
when "00000001" => inv_data := X"09";
|
when "00000001" => inv_data := X"09";
|
when "00000010" => inv_data := X"6a";
|
when "00000010" => inv_data := X"6a";
|
when "00000011" => inv_data := X"d5";
|
when "00000011" => inv_data := X"d5";
|
when "00000100" => inv_data := X"30";
|
when "00000100" => inv_data := X"30";
|
when "00000101" => inv_data := X"36";
|
when "00000101" => inv_data := X"36";
|
when "00000110" => inv_data := X"a5";
|
when "00000110" => inv_data := X"a5";
|
when "00000111" => inv_data := X"38";
|
when "00000111" => inv_data := X"38";
|
when "00001000" => inv_data := X"bf";
|
when "00001000" => inv_data := X"bf";
|
when "00001001" => inv_data := X"40";
|
when "00001001" => inv_data := X"40";
|
when "00001010" => inv_data := X"a3";
|
when "00001010" => inv_data := X"a3";
|
when "00001011" => inv_data := X"9e";
|
when "00001011" => inv_data := X"9e";
|
when "00001100" => inv_data := X"81";
|
when "00001100" => inv_data := X"81";
|
when "00001101" => inv_data := X"f3";
|
when "00001101" => inv_data := X"f3";
|
when "00001110" => inv_data := X"d7";
|
when "00001110" => inv_data := X"d7";
|
when "00001111" => inv_data := X"fb";
|
when "00001111" => inv_data := X"fb";
|
when "00010000" => inv_data := X"7c";
|
when "00010000" => inv_data := X"7c";
|
when "00010001" => inv_data := X"e3";
|
when "00010001" => inv_data := X"e3";
|
when "00010010" => inv_data := X"39";
|
when "00010010" => inv_data := X"39";
|
when "00010011" => inv_data := X"82";
|
when "00010011" => inv_data := X"82";
|
when "00010100" => inv_data := X"9b";
|
when "00010100" => inv_data := X"9b";
|
when "00010101" => inv_data := X"2f";
|
when "00010101" => inv_data := X"2f";
|
when "00010110" => inv_data := X"ff";
|
when "00010110" => inv_data := X"ff";
|
when "00010111" => inv_data := X"87";
|
when "00010111" => inv_data := X"87";
|
when "00011000" => inv_data := X"34";
|
when "00011000" => inv_data := X"34";
|
when "00011001" => inv_data := X"8e";
|
when "00011001" => inv_data := X"8e";
|
when "00011010" => inv_data := X"43";
|
when "00011010" => inv_data := X"43";
|
when "00011011" => inv_data := X"44";
|
when "00011011" => inv_data := X"44";
|
when "00011100" => inv_data := X"c4";
|
when "00011100" => inv_data := X"c4";
|
when "00011101" => inv_data := X"de";
|
when "00011101" => inv_data := X"de";
|
when "00011110" => inv_data := X"e9";
|
when "00011110" => inv_data := X"e9";
|
when "00011111" => inv_data := X"cb";
|
when "00011111" => inv_data := X"cb";
|
when "00100000" => inv_data := X"54";
|
when "00100000" => inv_data := X"54";
|
when "00100001" => inv_data := X"7b";
|
when "00100001" => inv_data := X"7b";
|
when "00100010" => inv_data := X"94";
|
when "00100010" => inv_data := X"94";
|
when "00100011" => inv_data := X"32";
|
when "00100011" => inv_data := X"32";
|
when "00100100" => inv_data := X"a6";
|
when "00100100" => inv_data := X"a6";
|
when "00100101" => inv_data := X"c2";
|
when "00100101" => inv_data := X"c2";
|
when "00100110" => inv_data := X"23";
|
when "00100110" => inv_data := X"23";
|
when "00100111" => inv_data := X"3d";
|
when "00100111" => inv_data := X"3d";
|
when "00101000" => inv_data := X"ee";
|
when "00101000" => inv_data := X"ee";
|
when "00101001" => inv_data := X"4c";
|
when "00101001" => inv_data := X"4c";
|
when "00101010" => inv_data := X"95";
|
when "00101010" => inv_data := X"95";
|
when "00101011" => inv_data := X"0b";
|
when "00101011" => inv_data := X"0b";
|
when "00101100" => inv_data := X"42";
|
when "00101100" => inv_data := X"42";
|
when "00101101" => inv_data := X"fa";
|
when "00101101" => inv_data := X"fa";
|
when "00101110" => inv_data := X"c3";
|
when "00101110" => inv_data := X"c3";
|
when "00101111" => inv_data := X"4e";
|
when "00101111" => inv_data := X"4e";
|
when "00110000" => inv_data := X"08";
|
when "00110000" => inv_data := X"08";
|
when "00110001" => inv_data := X"2e";
|
when "00110001" => inv_data := X"2e";
|
when "00110010" => inv_data := X"a1";
|
when "00110010" => inv_data := X"a1";
|
when "00110011" => inv_data := X"66";
|
when "00110011" => inv_data := X"66";
|
when "00110100" => inv_data := X"28";
|
when "00110100" => inv_data := X"28";
|
when "00110101" => inv_data := X"d9";
|
when "00110101" => inv_data := X"d9";
|
when "00110110" => inv_data := X"24";
|
when "00110110" => inv_data := X"24";
|
when "00110111" => inv_data := X"b2";
|
when "00110111" => inv_data := X"b2";
|
when "00111000" => inv_data := X"76";
|
when "00111000" => inv_data := X"76";
|
when "00111001" => inv_data := X"5b";
|
when "00111001" => inv_data := X"5b";
|
when "00111010" => inv_data := X"a2";
|
when "00111010" => inv_data := X"a2";
|
when "00111011" => inv_data := X"49";
|
when "00111011" => inv_data := X"49";
|
when "00111100" => inv_data := X"6d";
|
when "00111100" => inv_data := X"6d";
|
when "00111101" => inv_data := X"8b";
|
when "00111101" => inv_data := X"8b";
|
when "00111110" => inv_data := X"d1";
|
when "00111110" => inv_data := X"d1";
|
when "00111111" => inv_data := X"25";
|
when "00111111" => inv_data := X"25";
|
when "01000000" => inv_data := X"72";
|
when "01000000" => inv_data := X"72";
|
when "01000001" => inv_data := X"f8";
|
when "01000001" => inv_data := X"f8";
|
when "01000010" => inv_data := X"f6";
|
when "01000010" => inv_data := X"f6";
|
when "01000011" => inv_data := X"64";
|
when "01000011" => inv_data := X"64";
|
when "01000100" => inv_data := X"86";
|
when "01000100" => inv_data := X"86";
|
when "01000101" => inv_data := X"68";
|
when "01000101" => inv_data := X"68";
|
when "01000110" => inv_data := X"98";
|
when "01000110" => inv_data := X"98";
|
when "01000111" => inv_data := X"16";
|
when "01000111" => inv_data := X"16";
|
when "01001000" => inv_data := X"d4";
|
when "01001000" => inv_data := X"d4";
|
when "01001001" => inv_data := X"a4";
|
when "01001001" => inv_data := X"a4";
|
when "01001010" => inv_data := X"5c";
|
when "01001010" => inv_data := X"5c";
|
when "01001011" => inv_data := X"cc";
|
when "01001011" => inv_data := X"cc";
|
when "01001100" => inv_data := X"5d";
|
when "01001100" => inv_data := X"5d";
|
when "01001101" => inv_data := X"65";
|
when "01001101" => inv_data := X"65";
|
when "01001110" => inv_data := X"b6";
|
when "01001110" => inv_data := X"b6";
|
when "01001111" => inv_data := X"92";
|
when "01001111" => inv_data := X"92";
|
when "01010000" => inv_data := X"6c";
|
when "01010000" => inv_data := X"6c";
|
when "01010001" => inv_data := X"70";
|
when "01010001" => inv_data := X"70";
|
when "01010010" => inv_data := X"48";
|
when "01010010" => inv_data := X"48";
|
when "01010011" => inv_data := X"50";
|
when "01010011" => inv_data := X"50";
|
when "01010100" => inv_data := X"fd";
|
when "01010100" => inv_data := X"fd";
|
when "01010101" => inv_data := X"ed";
|
when "01010101" => inv_data := X"ed";
|
when "01010110" => inv_data := X"b9";
|
when "01010110" => inv_data := X"b9";
|
when "01010111" => inv_data := X"da";
|
when "01010111" => inv_data := X"da";
|
when "01011000" => inv_data := X"5e";
|
when "01011000" => inv_data := X"5e";
|
when "01011001" => inv_data := X"15";
|
when "01011001" => inv_data := X"15";
|
when "01011010" => inv_data := X"46";
|
when "01011010" => inv_data := X"46";
|
when "01011011" => inv_data := X"57";
|
when "01011011" => inv_data := X"57";
|
when "01011100" => inv_data := X"a7";
|
when "01011100" => inv_data := X"a7";
|
when "01011101" => inv_data := X"8d";
|
when "01011101" => inv_data := X"8d";
|
when "01011110" => inv_data := X"9d";
|
when "01011110" => inv_data := X"9d";
|
when "01011111" => inv_data := X"84";
|
when "01011111" => inv_data := X"84";
|
when "01100000" => inv_data := X"90";
|
when "01100000" => inv_data := X"90";
|
when "01100001" => inv_data := X"d8";
|
when "01100001" => inv_data := X"d8";
|
when "01100010" => inv_data := X"ab";
|
when "01100010" => inv_data := X"ab";
|
when "01100011" => inv_data := X"00";
|
when "01100011" => inv_data := X"00";
|
when "01100100" => inv_data := X"8c";
|
when "01100100" => inv_data := X"8c";
|
when "01100101" => inv_data := X"bc";
|
when "01100101" => inv_data := X"bc";
|
when "01100110" => inv_data := X"d3";
|
when "01100110" => inv_data := X"d3";
|
when "01100111" => inv_data := X"0a";
|
when "01100111" => inv_data := X"0a";
|
when "01101000" => inv_data := X"f7";
|
when "01101000" => inv_data := X"f7";
|
when "01101001" => inv_data := X"e4";
|
when "01101001" => inv_data := X"e4";
|
when "01101010" => inv_data := X"58";
|
when "01101010" => inv_data := X"58";
|
when "01101011" => inv_data := X"05";
|
when "01101011" => inv_data := X"05";
|
when "01101100" => inv_data := X"b8";
|
when "01101100" => inv_data := X"b8";
|
when "01101101" => inv_data := X"b3";
|
when "01101101" => inv_data := X"b3";
|
when "01101110" => inv_data := X"45";
|
when "01101110" => inv_data := X"45";
|
when "01101111" => inv_data := X"06";
|
when "01101111" => inv_data := X"06";
|
when "01110000" => inv_data := X"d0";
|
when "01110000" => inv_data := X"d0";
|
when "01110001" => inv_data := X"2c";
|
when "01110001" => inv_data := X"2c";
|
when "01110010" => inv_data := X"1e";
|
when "01110010" => inv_data := X"1e";
|
when "01110011" => inv_data := X"8f";
|
when "01110011" => inv_data := X"8f";
|
when "01110100" => inv_data := X"ca";
|
when "01110100" => inv_data := X"ca";
|
when "01110101" => inv_data := X"3f";
|
when "01110101" => inv_data := X"3f";
|
when "01110110" => inv_data := X"0f";
|
when "01110110" => inv_data := X"0f";
|
when "01110111" => inv_data := X"02";
|
when "01110111" => inv_data := X"02";
|
when "01111000" => inv_data := X"c1";
|
when "01111000" => inv_data := X"c1";
|
when "01111001" => inv_data := X"af";
|
when "01111001" => inv_data := X"af";
|
when "01111010" => inv_data := X"bd";
|
when "01111010" => inv_data := X"bd";
|
when "01111011" => inv_data := X"03";
|
when "01111011" => inv_data := X"03";
|
when "01111100" => inv_data := X"01";
|
when "01111100" => inv_data := X"01";
|
when "01111101" => inv_data := X"13";
|
when "01111101" => inv_data := X"13";
|
when "01111110" => inv_data := X"8a";
|
when "01111110" => inv_data := X"8a";
|
when "01111111" => inv_data := X"6b";
|
when "01111111" => inv_data := X"6b";
|
when "10000000" => inv_data := X"3a";
|
when "10000000" => inv_data := X"3a";
|
when "10000001" => inv_data := X"91";
|
when "10000001" => inv_data := X"91";
|
when "10000010" => inv_data := X"11";
|
when "10000010" => inv_data := X"11";
|
when "10000011" => inv_data := X"41";
|
when "10000011" => inv_data := X"41";
|
when "10000100" => inv_data := X"4f";
|
when "10000100" => inv_data := X"4f";
|
when "10000101" => inv_data := X"67";
|
when "10000101" => inv_data := X"67";
|
when "10000110" => inv_data := X"dc";
|
when "10000110" => inv_data := X"dc";
|
when "10000111" => inv_data := X"ea";
|
when "10000111" => inv_data := X"ea";
|
when "10001000" => inv_data := X"97";
|
when "10001000" => inv_data := X"97";
|
when "10001001" => inv_data := X"f2";
|
when "10001001" => inv_data := X"f2";
|
when "10001010" => inv_data := X"cf";
|
when "10001010" => inv_data := X"cf";
|
when "10001011" => inv_data := X"ce";
|
when "10001011" => inv_data := X"ce";
|
when "10001100" => inv_data := X"f0";
|
when "10001100" => inv_data := X"f0";
|
when "10001101" => inv_data := X"b4";
|
when "10001101" => inv_data := X"b4";
|
when "10001110" => inv_data := X"e6";
|
when "10001110" => inv_data := X"e6";
|
when "10001111" => inv_data := X"73";
|
when "10001111" => inv_data := X"73";
|
when "10010000" => inv_data := X"96";
|
when "10010000" => inv_data := X"96";
|
when "10010001" => inv_data := X"ac";
|
when "10010001" => inv_data := X"ac";
|
when "10010010" => inv_data := X"74";
|
when "10010010" => inv_data := X"74";
|
when "10010011" => inv_data := X"22";
|
when "10010011" => inv_data := X"22";
|
when "10010100" => inv_data := X"e7";
|
when "10010100" => inv_data := X"e7";
|
when "10010101" => inv_data := X"ad";
|
when "10010101" => inv_data := X"ad";
|
when "10010110" => inv_data := X"35";
|
when "10010110" => inv_data := X"35";
|
when "10010111" => inv_data := X"85";
|
when "10010111" => inv_data := X"85";
|
when "10011000" => inv_data := X"e2";
|
when "10011000" => inv_data := X"e2";
|
when "10011001" => inv_data := X"f9";
|
when "10011001" => inv_data := X"f9";
|
when "10011010" => inv_data := X"37";
|
when "10011010" => inv_data := X"37";
|
when "10011011" => inv_data := X"e8";
|
when "10011011" => inv_data := X"e8";
|
when "10011100" => inv_data := X"1c";
|
when "10011100" => inv_data := X"1c";
|
when "10011101" => inv_data := X"75";
|
when "10011101" => inv_data := X"75";
|
when "10011110" => inv_data := X"df";
|
when "10011110" => inv_data := X"df";
|
when "10011111" => inv_data := X"6e";
|
when "10011111" => inv_data := X"6e";
|
when "10100000" => inv_data := X"47";
|
when "10100000" => inv_data := X"47";
|
when "10100001" => inv_data := X"f1";
|
when "10100001" => inv_data := X"f1";
|
when "10100010" => inv_data := X"1a";
|
when "10100010" => inv_data := X"1a";
|
when "10100011" => inv_data := X"71";
|
when "10100011" => inv_data := X"71";
|
when "10100100" => inv_data := X"1d";
|
when "10100100" => inv_data := X"1d";
|
when "10100101" => inv_data := X"29";
|
when "10100101" => inv_data := X"29";
|
when "10100110" => inv_data := X"c5";
|
when "10100110" => inv_data := X"c5";
|
when "10100111" => inv_data := X"89";
|
when "10100111" => inv_data := X"89";
|
when "10101000" => inv_data := X"6f";
|
when "10101000" => inv_data := X"6f";
|
when "10101001" => inv_data := X"b7";
|
when "10101001" => inv_data := X"b7";
|
when "10101010" => inv_data := X"62";
|
when "10101010" => inv_data := X"62";
|
when "10101011" => inv_data := X"0e";
|
when "10101011" => inv_data := X"0e";
|
when "10101100" => inv_data := X"aa";
|
when "10101100" => inv_data := X"aa";
|
when "10101101" => inv_data := X"18";
|
when "10101101" => inv_data := X"18";
|
when "10101110" => inv_data := X"be";
|
when "10101110" => inv_data := X"be";
|
when "10101111" => inv_data := X"1b";
|
when "10101111" => inv_data := X"1b";
|
when "10110000" => inv_data := X"fc";
|
when "10110000" => inv_data := X"fc";
|
when "10110001" => inv_data := X"56";
|
when "10110001" => inv_data := X"56";
|
when "10110010" => inv_data := X"3e";
|
when "10110010" => inv_data := X"3e";
|
when "10110011" => inv_data := X"4b";
|
when "10110011" => inv_data := X"4b";
|
when "10110100" => inv_data := X"c6";
|
when "10110100" => inv_data := X"c6";
|
when "10110101" => inv_data := X"d2";
|
when "10110101" => inv_data := X"d2";
|
when "10110110" => inv_data := X"79";
|
when "10110110" => inv_data := X"79";
|
when "10110111" => inv_data := X"20";
|
when "10110111" => inv_data := X"20";
|
when "10111000" => inv_data := X"9a";
|
when "10111000" => inv_data := X"9a";
|
when "10111001" => inv_data := X"db";
|
when "10111001" => inv_data := X"db";
|
when "10111010" => inv_data := X"c0";
|
when "10111010" => inv_data := X"c0";
|
when "10111011" => inv_data := X"fe";
|
when "10111011" => inv_data := X"fe";
|
when "10111100" => inv_data := X"78";
|
when "10111100" => inv_data := X"78";
|
when "10111101" => inv_data := X"cd";
|
when "10111101" => inv_data := X"cd";
|
when "10111110" => inv_data := X"5a";
|
when "10111110" => inv_data := X"5a";
|
when "10111111" => inv_data := X"f4";
|
when "10111111" => inv_data := X"f4";
|
when "11000000" => inv_data := X"1f";
|
when "11000000" => inv_data := X"1f";
|
when "11000001" => inv_data := X"dd";
|
when "11000001" => inv_data := X"dd";
|
when "11000010" => inv_data := X"a8";
|
when "11000010" => inv_data := X"a8";
|
when "11000011" => inv_data := X"33";
|
when "11000011" => inv_data := X"33";
|
when "11000100" => inv_data := X"88";
|
when "11000100" => inv_data := X"88";
|
when "11000101" => inv_data := X"07";
|
when "11000101" => inv_data := X"07";
|
when "11000110" => inv_data := X"c7";
|
when "11000110" => inv_data := X"c7";
|
when "11000111" => inv_data := X"31";
|
when "11000111" => inv_data := X"31";
|
when "11001000" => inv_data := X"b1";
|
when "11001000" => inv_data := X"b1";
|
when "11001001" => inv_data := X"12";
|
when "11001001" => inv_data := X"12";
|
when "11001010" => inv_data := X"10";
|
when "11001010" => inv_data := X"10";
|
when "11001011" => inv_data := X"59";
|
when "11001011" => inv_data := X"59";
|
when "11001100" => inv_data := X"27";
|
when "11001100" => inv_data := X"27";
|
when "11001101" => inv_data := X"80";
|
when "11001101" => inv_data := X"80";
|
when "11001110" => inv_data := X"ec";
|
when "11001110" => inv_data := X"ec";
|
when "11001111" => inv_data := X"5f";
|
when "11001111" => inv_data := X"5f";
|
when "11010000" => inv_data := X"60";
|
when "11010000" => inv_data := X"60";
|
when "11010001" => inv_data := X"51";
|
when "11010001" => inv_data := X"51";
|
when "11010010" => inv_data := X"7f";
|
when "11010010" => inv_data := X"7f";
|
when "11010011" => inv_data := X"a9";
|
when "11010011" => inv_data := X"a9";
|
when "11010100" => inv_data := X"19";
|
when "11010100" => inv_data := X"19";
|
when "11010101" => inv_data := X"b5";
|
when "11010101" => inv_data := X"b5";
|
when "11010110" => inv_data := X"4a";
|
when "11010110" => inv_data := X"4a";
|
when "11010111" => inv_data := X"0d";
|
when "11010111" => inv_data := X"0d";
|
when "11011000" => inv_data := X"2d";
|
when "11011000" => inv_data := X"2d";
|
when "11011001" => inv_data := X"e5";
|
when "11011001" => inv_data := X"e5";
|
when "11011010" => inv_data := X"7a";
|
when "11011010" => inv_data := X"7a";
|
when "11011011" => inv_data := X"9f";
|
when "11011011" => inv_data := X"9f";
|
when "11011100" => inv_data := X"93";
|
when "11011100" => inv_data := X"93";
|
when "11011101" => inv_data := X"c9";
|
when "11011101" => inv_data := X"c9";
|
when "11011110" => inv_data := X"9c";
|
when "11011110" => inv_data := X"9c";
|
when "11011111" => inv_data := X"ef";
|
when "11011111" => inv_data := X"ef";
|
when "11100000" => inv_data := X"a0";
|
when "11100000" => inv_data := X"a0";
|
when "11100001" => inv_data := X"e0";
|
when "11100001" => inv_data := X"e0";
|
when "11100010" => inv_data := X"3b";
|
when "11100010" => inv_data := X"3b";
|
when "11100011" => inv_data := X"4d";
|
when "11100011" => inv_data := X"4d";
|
when "11100100" => inv_data := X"ae";
|
when "11100100" => inv_data := X"ae";
|
when "11100101" => inv_data := X"2a";
|
when "11100101" => inv_data := X"2a";
|
when "11100110" => inv_data := X"f5";
|
when "11100110" => inv_data := X"f5";
|
when "11100111" => inv_data := X"b0";
|
when "11100111" => inv_data := X"b0";
|
when "11101000" => inv_data := X"c8";
|
when "11101000" => inv_data := X"c8";
|
when "11101001" => inv_data := X"eb";
|
when "11101001" => inv_data := X"eb";
|
when "11101010" => inv_data := X"bb";
|
when "11101010" => inv_data := X"bb";
|
when "11101011" => inv_data := X"3c";
|
when "11101011" => inv_data := X"3c";
|
when "11101100" => inv_data := X"83";
|
when "11101100" => inv_data := X"83";
|
when "11101101" => inv_data := X"53";
|
when "11101101" => inv_data := X"53";
|
when "11101110" => inv_data := X"99";
|
when "11101110" => inv_data := X"99";
|
when "11101111" => inv_data := X"61";
|
when "11101111" => inv_data := X"61";
|
when "11110000" => inv_data := X"17";
|
when "11110000" => inv_data := X"17";
|
when "11110001" => inv_data := X"2b";
|
when "11110001" => inv_data := X"2b";
|
when "11110010" => inv_data := X"04";
|
when "11110010" => inv_data := X"04";
|
when "11110011" => inv_data := X"7e";
|
when "11110011" => inv_data := X"7e";
|
when "11110100" => inv_data := X"ba";
|
when "11110100" => inv_data := X"ba";
|
when "11110101" => inv_data := X"77";
|
when "11110101" => inv_data := X"77";
|
when "11110110" => inv_data := X"d6";
|
when "11110110" => inv_data := X"d6";
|
when "11110111" => inv_data := X"26";
|
when "11110111" => inv_data := X"26";
|
when "11111000" => inv_data := X"e1";
|
when "11111000" => inv_data := X"e1";
|
when "11111001" => inv_data := X"69";
|
when "11111001" => inv_data := X"69";
|
when "11111010" => inv_data := X"14";
|
when "11111010" => inv_data := X"14";
|
when "11111011" => inv_data := X"63";
|
when "11111011" => inv_data := X"63";
|
when "11111100" => inv_data := X"55";
|
when "11111100" => inv_data := X"55";
|
when "11111101" => inv_data := X"21";
|
when "11111101" => inv_data := X"21";
|
when "11111110" => inv_data := X"0c";
|
when "11111110" => inv_data := X"0c";
|
when "11111111" => inv_data := X"7d";
|
when "11111111" => inv_data := X"7d";
|
when others => null;
|
when others => null;
|
end case;
|
end case;
|
inv_data_stdlogic := to_StdLogicVector(inv_data);
|
inv_data_stdlogic := to_StdLogicVector(inv_data);
|
return inv_data_stdlogic;
|
return inv_data_stdlogic;
|
end function inv_sbox_val;
|
end function inv_sbox_val;
|
|
|
function col_transform(p: state_array_type) return std_logic_vector is
|
function col_transform(p: state_array_type) return std_logic_vector is
|
variable result: std_logic_vector(7 downto 0);
|
variable result: std_logic_vector(7 downto 0);
|
variable m,n: std_logic_vector(7 downto 0);
|
variable m,n: std_logic_vector(7 downto 0);
|
begin
|
begin
|
if(p(0)(7) = '1') then
|
if(p(0)(7) = '1') then
|
m := (p(0)(6 downto 0) & '0') xor "00011011";
|
m := (p(0)(6 downto 0) & '0') xor "00011011";
|
else
|
else
|
m := (p(0)(6 downto 0) & '0');
|
m := (p(0)(6 downto 0) & '0');
|
end if;
|
end if;
|
if(p(1)(7) = '1') then
|
if(p(1)(7) = '1') then
|
n := (p(1)(6 downto 0) & '0') xor "00011011" xor p(1);
|
n := (p(1)(6 downto 0) & '0') xor "00011011" xor p(1);
|
else
|
else
|
n := (p(1)(6 downto 0) & '0') xor p(1);
|
n := (p(1)(6 downto 0) & '0') xor p(1);
|
end if;
|
end if;
|
result := m xor n xor p(2) xor p(3);
|
result := m xor n xor p(2) xor p(3);
|
return result;
|
return result;
|
end function col_transform;
|
end function col_transform;
|
|
|
function col_inv_transform(s: state_array_type) return std_logic_vector is
|
function col_inv_transform(s: state_array_type) return std_logic_vector is
|
variable result: std_logic_vector(7 downto 0);
|
variable result: std_logic_vector(7 downto 0);
|
variable sub0,sub1,sub2,sub3: std_logic_vector(7 downto 0);
|
variable sub0,sub1,sub2,sub3: std_logic_vector(7 downto 0);
|
variable x0,y0,z0: std_logic_vector(7 downto 0);
|
variable x0,y0,z0: std_logic_vector(7 downto 0);
|
variable x1,y1,z1: std_logic_vector(7 downto 0);
|
variable x1,y1,z1: std_logic_vector(7 downto 0);
|
variable x2,y2,z2: std_logic_vector(7 downto 0);
|
variable x2,y2,z2: std_logic_vector(7 downto 0);
|
variable x3,y3,z3: std_logic_vector(7 downto 0);
|
variable x3,y3,z3: std_logic_vector(7 downto 0);
|
begin
|
begin
|
if(s(0)(7) = '1') then
|
if(s(0)(7) = '1') then
|
x0 := (s(0)(6 downto 0) & '0') xor "00011011";
|
x0 := (s(0)(6 downto 0) & '0') xor "00011011";
|
else
|
else
|
x0 := (s(0)(6 downto 0) & '0');
|
x0 := (s(0)(6 downto 0) & '0');
|
end if;
|
end if;
|
if(x0(7) = '1') then
|
if(x0(7) = '1') then
|
y0 := (x0(6 downto 0) & '0') xor "00011011";
|
y0 := (x0(6 downto 0) & '0') xor "00011011";
|
else
|
else
|
y0 := (x0(6 downto 0) & '0');
|
y0 := (x0(6 downto 0) & '0');
|
end if;
|
end if;
|
if(y0(7) = '1') then
|
if(y0(7) = '1') then
|
z0 := (y0(6 downto 0) & '0') xor "00011011";
|
z0 := (y0(6 downto 0) & '0') xor "00011011";
|
else
|
else
|
z0 := (y0(6 downto 0) & '0');
|
z0 := (y0(6 downto 0) & '0');
|
end if;
|
end if;
|
sub0 := (x0 xor y0 xor z0);----------
|
sub0 := (x0 xor y0 xor z0);----------
|
|
|
if(s(1)(7) = '1') then
|
if(s(1)(7) = '1') then
|
x1 := (s(1)(6 downto 0) & '0') xor "00011011";
|
x1 := (s(1)(6 downto 0) & '0') xor "00011011";
|
else
|
else
|
x1 := (s(1)(6 downto 0) & '0');
|
x1 := (s(1)(6 downto 0) & '0');
|
end if;
|
end if;
|
if(x1(7) = '1') then
|
if(x1(7) = '1') then
|
y1 := (x1(6 downto 0) & '0') xor "00011011";
|
y1 := (x1(6 downto 0) & '0') xor "00011011";
|
else
|
else
|
y1 := (x1(6 downto 0) & '0');
|
y1 := (x1(6 downto 0) & '0');
|
end if;
|
end if;
|
if(y1(7) = '1') then
|
if(y1(7) = '1') then
|
z1 := (y1(6 downto 0) & '0') xor "00011011";
|
z1 := (y1(6 downto 0) & '0') xor "00011011";
|
else
|
else
|
z1 := (y1(6 downto 0) & '0');
|
z1 := (y1(6 downto 0) & '0');
|
end if;
|
end if;
|
sub1 := (x1 xor z1 xor s(1));----------
|
sub1 := (x1 xor z1 xor s(1));----------
|
|
|
if(s(2)(7) = '1') then
|
if(s(2)(7) = '1') then
|
x2 := (s(2)(6 downto 0) & '0') xor "00011011";
|
x2 := (s(2)(6 downto 0) & '0') xor "00011011";
|
else
|
else
|
x2 := (s(2)(6 downto 0) & '0');
|
x2 := (s(2)(6 downto 0) & '0');
|
end if;
|
end if;
|
if(x2(7) = '1') then
|
if(x2(7) = '1') then
|
y2 := (x2(6 downto 0) & '0') xor "00011011";
|
y2 := (x2(6 downto 0) & '0') xor "00011011";
|
else
|
else
|
y2 := (x2(6 downto 0) & '0');
|
y2 := (x2(6 downto 0) & '0');
|
end if;
|
end if;
|
if(y2(7) = '1') then
|
if(y2(7) = '1') then
|
z2 := (y2(6 downto 0) & '0') xor "00011011";
|
z2 := (y2(6 downto 0) & '0') xor "00011011";
|
else
|
else
|
z2 := (y2(6 downto 0) & '0');
|
z2 := (y2(6 downto 0) & '0');
|
end if;
|
end if;
|
sub2 := (y2 xor z2 xor s(2));----------
|
sub2 := (y2 xor z2 xor s(2));----------
|
|
|
if(s(3)(7) = '1') then
|
if(s(3)(7) = '1') then
|
x3 := (s(3)(6 downto 0) & '0') xor "00011011";
|
x3 := (s(3)(6 downto 0) & '0') xor "00011011";
|
else
|
else
|
x3 := (s(3)(6 downto 0) & '0');
|
x3 := (s(3)(6 downto 0) & '0');
|
end if;
|
end if;
|
if(x3(7) = '1') then
|
if(x3(7) = '1') then
|
y3 := (x3(6 downto 0) & '0') xor "00011011";
|
y3 := (x3(6 downto 0) & '0') xor "00011011";
|
else
|
else
|
y3 := (x3(6 downto 0) & '0');
|
y3 := (x3(6 downto 0) & '0');
|
end if;
|
end if;
|
if(y3(7) = '1') then
|
if(y3(7) = '1') then
|
z3 := (y3(6 downto 0) & '0') xor "00011011";
|
z3 := (y3(6 downto 0) & '0') xor "00011011";
|
else
|
else
|
z3 := (y3(6 downto 0) & '0');
|
z3 := (y3(6 downto 0) & '0');
|
end if;
|
end if;
|
sub3 := (z3 xor s(3));----------
|
sub3 := (z3 xor s(3));----------
|
|
|
result := sub0 xor sub1 xor sub2 xor sub3;
|
result := sub0 xor sub1 xor sub2 xor sub3;
|
return result;
|
return result;
|
end function col_inv_transform;
|
end function col_inv_transform;
|
|
|
-- combo logic for mix columns
|
-- combo logic for mix columns
|
function mix_cols_routine
|
function mix_cols_routine
|
(
|
(
|
a_r0 :state_array_type;
|
a_r0 :state_array_type;
|
a_r1 :state_array_type;
|
a_r1 :state_array_type;
|
a_r2 :state_array_type;
|
a_r2 :state_array_type;
|
a_r3 :state_array_type;
|
a_r3 :state_array_type;
|
mode :std_logic
|
mode :std_logic
|
)
|
)
|
return std_logic_vector is
|
return std_logic_vector is
|
variable b : std_logic_vector(0 to 127);
|
variable b : std_logic_vector(0 to 127);
|
variable b0 : state_array_type;
|
variable b0 : state_array_type;
|
variable b1 : state_array_type;
|
variable b1 : state_array_type;
|
variable b2 : state_array_type;
|
variable b2 : state_array_type;
|
variable b3 : state_array_type;
|
variable b3 : state_array_type;
|
-------------------------------------------------
|
-------------------------------------------------
|
variable b_0_0 : std_logic_vector(7 downto 0);
|
variable b_0_0 : std_logic_vector(7 downto 0);
|
variable s_0_0 : state_array_type;
|
variable s_0_0 : state_array_type;
|
--------------------------------------------------
|
--------------------------------------------------
|
variable b_0_1 : std_logic_vector(7 downto 0);
|
variable b_0_1 : std_logic_vector(7 downto 0);
|
variable s_0_1 : state_array_type;
|
variable s_0_1 : state_array_type;
|
--------------------------------------------------
|
--------------------------------------------------
|
variable b_0_2 : std_logic_vector(7 downto 0);
|
variable b_0_2 : std_logic_vector(7 downto 0);
|
variable s_0_2 : state_array_type;
|
variable s_0_2 : state_array_type;
|
----------------------------------------------
|
----------------------------------------------
|
variable b_0_3 : std_logic_vector(7 downto 0);
|
variable b_0_3 : std_logic_vector(7 downto 0);
|
variable s_0_3 : state_array_type;
|
variable s_0_3 : state_array_type;
|
----------------------------------------------
|
----------------------------------------------
|
variable b_1_0 : std_logic_vector(7 downto 0);
|
variable b_1_0 : std_logic_vector(7 downto 0);
|
variable s_1_0 : state_array_type;
|
variable s_1_0 : state_array_type;
|
----------------------------------------------
|
----------------------------------------------
|
variable b_1_1 : std_logic_vector(7 downto 0);
|
variable b_1_1 : std_logic_vector(7 downto 0);
|
variable s_1_1 : state_array_type;
|
variable s_1_1 : state_array_type;
|
----------------------------------------------
|
----------------------------------------------
|
variable b_1_2 : std_logic_vector(7 downto 0);
|
variable b_1_2 : std_logic_vector(7 downto 0);
|
variable s_1_2 : state_array_type;
|
variable s_1_2 : state_array_type;
|
----------------------------------------------
|
----------------------------------------------
|
variable b_1_3 : std_logic_vector(7 downto 0);
|
variable b_1_3 : std_logic_vector(7 downto 0);
|
variable s_1_3 : state_array_type;
|
variable s_1_3 : state_array_type;
|
----------------------------------------------
|
----------------------------------------------
|
variable b_2_0 : std_logic_vector(7 downto 0);
|
variable b_2_0 : std_logic_vector(7 downto 0);
|
variable s_2_0 : state_array_type;
|
variable s_2_0 : state_array_type;
|
----------------------------------------------
|
----------------------------------------------
|
variable b_2_1 : std_logic_vector(7 downto 0);
|
variable b_2_1 : std_logic_vector(7 downto 0);
|
variable s_2_1 : state_array_type;
|
variable s_2_1 : state_array_type;
|
----------------------------------------------
|
----------------------------------------------
|
variable b_2_2 : std_logic_vector(7 downto 0);
|
variable b_2_2 : std_logic_vector(7 downto 0);
|
variable s_2_2 : state_array_type;
|
variable s_2_2 : state_array_type;
|
----------------------------------------------
|
----------------------------------------------
|
variable b_2_3 : std_logic_vector(7 downto 0);
|
variable b_2_3 : std_logic_vector(7 downto 0);
|
variable s_2_3 : state_array_type;
|
variable s_2_3 : state_array_type;
|
----------------------------------------------
|
----------------------------------------------
|
variable b_3_0 : std_logic_vector(7 downto 0);
|
variable b_3_0 : std_logic_vector(7 downto 0);
|
variable s_3_0 : state_array_type;
|
variable s_3_0 : state_array_type;
|
----------------------------------------------
|
----------------------------------------------
|
variable b_3_1 : std_logic_vector(7 downto 0);
|
variable b_3_1 : std_logic_vector(7 downto 0);
|
variable s_3_1 : state_array_type;
|
variable s_3_1 : state_array_type;
|
----------------------------------------------
|
----------------------------------------------
|
variable b_3_2 : std_logic_vector(7 downto 0);
|
variable b_3_2 : std_logic_vector(7 downto 0);
|
variable s_3_2 : state_array_type;
|
variable s_3_2 : state_array_type;
|
----------------------------------------------
|
----------------------------------------------
|
variable b_3_3 : std_logic_vector(7 downto 0);
|
variable b_3_3 : std_logic_vector(7 downto 0);
|
variable s_3_3 : state_array_type;
|
variable s_3_3 : state_array_type;
|
--------------------------------------------------
|
--------------------------------------------------
|
begin
|
begin
|
if(mode = '1') then
|
if(mode = '1') then
|
s_0_0 := a_r0;
|
s_0_0 := a_r0;
|
b_0_0 := col_transform(s_0_0);
|
b_0_0 := col_transform(s_0_0);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_0_1 := a_r1;
|
s_0_1 := a_r1;
|
b_0_1 := col_transform(s_0_1);
|
b_0_1 := col_transform(s_0_1);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_0_2 := a_r2;
|
s_0_2 := a_r2;
|
b_0_2 := col_transform(s_0_2);
|
b_0_2 := col_transform(s_0_2);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_0_3 := a_r3;
|
s_0_3 := a_r3;
|
b_0_3 := col_transform(s_0_3);
|
b_0_3 := col_transform(s_0_3);
|
--****************************************************************
|
--****************************************************************
|
s_1_0 := (a_r0(1),a_r0(2),a_r0(3),a_r0(0));
|
s_1_0 := (a_r0(1),a_r0(2),a_r0(3),a_r0(0));
|
b_1_0 := col_transform(s_1_0);
|
b_1_0 := col_transform(s_1_0);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_1_1 := (a_r1(1),a_r1(2),a_r1(3),a_r1(0));
|
s_1_1 := (a_r1(1),a_r1(2),a_r1(3),a_r1(0));
|
b_1_1 := col_transform(s_1_1);
|
b_1_1 := col_transform(s_1_1);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_1_2 := (a_r2(1),a_r2(2),a_r2(3),a_r2(0));
|
s_1_2 := (a_r2(1),a_r2(2),a_r2(3),a_r2(0));
|
b_1_2 := col_transform(s_1_2);
|
b_1_2 := col_transform(s_1_2);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_1_3 := (a_r3(1),a_r3(2),a_r3(3),a_r3(0));
|
s_1_3 := (a_r3(1),a_r3(2),a_r3(3),a_r3(0));
|
b_1_3 := col_transform(s_1_3);
|
b_1_3 := col_transform(s_1_3);
|
--****************************************************************
|
--****************************************************************
|
s_2_0 := (a_r0(2),a_r0(3),a_r0(0),a_r0(1));
|
s_2_0 := (a_r0(2),a_r0(3),a_r0(0),a_r0(1));
|
b_2_0 := col_transform(s_2_0);
|
b_2_0 := col_transform(s_2_0);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_2_1 := (a_r1(2),a_r1(3),a_r1(0),a_r1(1));
|
s_2_1 := (a_r1(2),a_r1(3),a_r1(0),a_r1(1));
|
b_2_1 := col_transform(s_2_1);
|
b_2_1 := col_transform(s_2_1);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_2_2 := (a_r2(2),a_r2(3),a_r2(0),a_r2(1));
|
s_2_2 := (a_r2(2),a_r2(3),a_r2(0),a_r2(1));
|
b_2_2 := col_transform(s_2_2);
|
b_2_2 := col_transform(s_2_2);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_2_3 := (a_r3(2),a_r3(3),a_r3(0),a_r3(1));
|
s_2_3 := (a_r3(2),a_r3(3),a_r3(0),a_r3(1));
|
b_2_3 := col_transform(s_2_3);
|
b_2_3 := col_transform(s_2_3);
|
--****************************************************************
|
--****************************************************************
|
s_3_0 := (a_r0(3),a_r0(0),a_r0(1),a_r0(2));
|
s_3_0 := (a_r0(3),a_r0(0),a_r0(1),a_r0(2));
|
b_3_0 := col_transform(s_3_0);
|
b_3_0 := col_transform(s_3_0);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_3_1 := (a_r1(3),a_r1(0),a_r1(1),a_r1(2));
|
s_3_1 := (a_r1(3),a_r1(0),a_r1(1),a_r1(2));
|
b_3_1 := col_transform(s_3_1);
|
b_3_1 := col_transform(s_3_1);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_3_2 := (a_r2(3),a_r2(0),a_r2(1),a_r2(2));
|
s_3_2 := (a_r2(3),a_r2(0),a_r2(1),a_r2(2));
|
b_3_2 := col_transform(s_3_2);
|
b_3_2 := col_transform(s_3_2);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_3_3 := (a_r3(3),a_r3(0),a_r3(1),a_r3(2));
|
s_3_3 := (a_r3(3),a_r3(0),a_r3(1),a_r3(2));
|
b_3_3 := col_transform(s_3_3);
|
b_3_3 := col_transform(s_3_3);
|
--****************************************************************
|
--****************************************************************
|
else
|
else
|
s_0_0 := a_r0;
|
s_0_0 := a_r0;
|
b_0_0 := col_inv_transform(s_0_0);
|
b_0_0 := col_inv_transform(s_0_0);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_0_1 := a_r1;
|
s_0_1 := a_r1;
|
b_0_1 := col_inv_transform(s_0_1);
|
b_0_1 := col_inv_transform(s_0_1);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_0_2 := a_r2;
|
s_0_2 := a_r2;
|
b_0_2 := col_inv_transform(s_0_2);
|
b_0_2 := col_inv_transform(s_0_2);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_0_3 := a_r3;
|
s_0_3 := a_r3;
|
b_0_3 := col_inv_transform(s_0_3);
|
b_0_3 := col_inv_transform(s_0_3);
|
--****************************************************************
|
--****************************************************************
|
s_1_0 := (a_r0(1),a_r0(2),a_r0(3),a_r0(0));
|
s_1_0 := (a_r0(1),a_r0(2),a_r0(3),a_r0(0));
|
b_1_0 := col_inv_transform(s_1_0);
|
b_1_0 := col_inv_transform(s_1_0);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_1_1 := (a_r1(1),a_r1(2),a_r1(3),a_r1(0));
|
s_1_1 := (a_r1(1),a_r1(2),a_r1(3),a_r1(0));
|
b_1_1 := col_inv_transform(s_1_1);
|
b_1_1 := col_inv_transform(s_1_1);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_1_2 := (a_r2(1),a_r2(2),a_r2(3),a_r2(0));
|
s_1_2 := (a_r2(1),a_r2(2),a_r2(3),a_r2(0));
|
b_1_2 := col_inv_transform(s_1_2);
|
b_1_2 := col_inv_transform(s_1_2);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_1_3 := (a_r3(1),a_r3(2),a_r3(3),a_r3(0));
|
s_1_3 := (a_r3(1),a_r3(2),a_r3(3),a_r3(0));
|
b_1_3 := col_inv_transform(s_1_3);
|
b_1_3 := col_inv_transform(s_1_3);
|
--****************************************************************
|
--****************************************************************
|
s_2_0 := (a_r0(2),a_r0(3),a_r0(0),a_r0(1));
|
s_2_0 := (a_r0(2),a_r0(3),a_r0(0),a_r0(1));
|
b_2_0 := col_inv_transform(s_2_0);
|
b_2_0 := col_inv_transform(s_2_0);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_2_1 := (a_r1(2),a_r1(3),a_r1(0),a_r1(1));
|
s_2_1 := (a_r1(2),a_r1(3),a_r1(0),a_r1(1));
|
b_2_1 := col_inv_transform(s_2_1);
|
b_2_1 := col_inv_transform(s_2_1);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_2_2 := (a_r2(2),a_r2(3),a_r2(0),a_r2(1));
|
s_2_2 := (a_r2(2),a_r2(3),a_r2(0),a_r2(1));
|
b_2_2 := col_inv_transform(s_2_2);
|
b_2_2 := col_inv_transform(s_2_2);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_2_3 := (a_r3(2),a_r3(3),a_r3(0),a_r3(1));
|
s_2_3 := (a_r3(2),a_r3(3),a_r3(0),a_r3(1));
|
b_2_3 := col_inv_transform(s_2_3);
|
b_2_3 := col_inv_transform(s_2_3);
|
--****************************************************************
|
--****************************************************************
|
s_3_0 := (a_r0(3),a_r0(0),a_r0(1),a_r0(2));
|
s_3_0 := (a_r0(3),a_r0(0),a_r0(1),a_r0(2));
|
b_3_0 := col_inv_transform(s_3_0);
|
b_3_0 := col_inv_transform(s_3_0);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_3_1 := (a_r1(3),a_r1(0),a_r1(1),a_r1(2));
|
s_3_1 := (a_r1(3),a_r1(0),a_r1(1),a_r1(2));
|
b_3_1 := col_inv_transform(s_3_1);
|
b_3_1 := col_inv_transform(s_3_1);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_3_2 := (a_r2(3),a_r2(0),a_r2(1),a_r2(2));
|
s_3_2 := (a_r2(3),a_r2(0),a_r2(1),a_r2(2));
|
b_3_2 := col_inv_transform(s_3_2);
|
b_3_2 := col_inv_transform(s_3_2);
|
------------------------------------------------------
|
------------------------------------------------------
|
s_3_3 := (a_r3(3),a_r3(0),a_r3(1),a_r3(2));
|
s_3_3 := (a_r3(3),a_r3(0),a_r3(1),a_r3(2));
|
b_3_3 := col_inv_transform(s_3_3);
|
b_3_3 := col_inv_transform(s_3_3);
|
--****************************************************************
|
--****************************************************************
|
end if;
|
end if;
|
b := (b_0_0 & b_1_0 & b_2_0 & b_3_0 & b_0_1 & b_1_1 & b_2_1 & b_3_1 &
|
b := (b_0_0 & b_1_0 & b_2_0 & b_3_0 & b_0_1 & b_1_1 & b_2_1 & b_3_1 &
|
b_0_2 & b_1_2 & b_2_2 & b_3_2 & b_0_3 & b_1_3 & b_2_3 & b_3_3);
|
b_0_2 & b_1_2 & b_2_2 & b_3_2 & b_0_3 & b_1_3 & b_2_3 & b_3_3);
|
return b;
|
return b;
|
end function mix_cols_routine;
|
end function mix_cols_routine;
|
|
|
end package body aes_package;
|
end package body aes_package;
|
|
|
|
|