crypt_pack.vhd

-- Implementation of the Lilliput-TBC tweakable block cipher by the
-- Lilliput-AE team, hereby denoted as "the implementer".
--
-- For more information, feedback or questions, refer to our website:
-- https://paclido.fr/lilliput-ae
--
-- To the extent possible under law, the implementer has waived all copyright
-- and related or neighboring rights to the source code in this file.
-- http://creativecommons.org/publicdomain/zero/1.0/

library IEEE;
library work; 
use IEEE.STD_LOGIC_1164.ALL;
use work.const_pack.ALL;

package crypt_pack is

    subtype bit2 				is std_logic_vector(1 downto 0);
    subtype bit4 				is std_logic_vector(3 downto 0);
    subtype bit8 				is std_logic_vector(7 downto 0);
    subtype bit16 			is std_logic_vector(15 downto 0);
    subtype bit32 			is std_logic_vector(31 downto 0);
    subtype bit64 			is std_logic_vector(63 downto 0);
    subtype bit128 			is std_logic_vector(127 downto 0);
    subtype bit256 			is std_logic_vector(255 downto 0);
    subtype bit192 			is std_logic_vector(191 downto 0);
    subtype bit80 			is std_logic_vector(79 downto 0);
    subtype bit_tweak 		is std_logic_vector(TWEAK_LEN-1 downto 0);
    subtype bit_key 			is std_logic_vector(KEY_LEN-1 downto 0);
    subtype bit_tweak_key 	is std_logic_vector((TWEAK_LEN+KEY_LEN)-1 downto 0);
	 subtype bit_data 	is std_logic_vector (127 downto 0);
    

    type row_state 				is array(0 to 3) of bit8;
    type type_state 				is array(0 to 3) of row_state;
    
    type key_row_state 			is array(0 to 3) of bit8;
    type type_key 				is array(0 to 1) of key_row_state; 
    type type_stored_key 		is array(0 to ROUND_NB-1) of type_key;
	 
    type type_tweak_key_row 	is array(0 to 7) of bit8;  
    type type_tweak_key_array is array(0 to ((TWEAK_LEN+KEY_LEN)/64)-1) of type_tweak_key_row;
    
    type keyschedule_row_state is array(0 to 3) of bit8;
    type type_keyschedule 		is array(0 to 3) of keyschedule_row_state;      
    
    constant ROUND 			: integer;
    constant TWEAK_KEY_LEN : integer;
    constant LANE_NB 		: integer;
    
   
end crypt_pack;        
    
package body crypt_pack is 
    constant ROUND 			: integer := ROUND_NB-1; 
    constant TWEAK_KEY_LEN : integer := TWEAK_LEN+KEY_LEN-1;
    constant LANE_NB 		: integer := ((TWEAK_LEN+KEY_LEN)/64);
end crypt_pack;