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--- 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.numeric_std.ALL;
-use IEEE.STD_LOGIC_1164.ALL;
-use work.crypt_pack.ALL;
-
-entity state_key_register is
- port(
- state_key_i : in type_tweak_key_array; -- Etat d'entrée
- state_key_o : out type_tweak_key_array; -- Etat de sortie
- clock_i : in std_logic; -- Permet de gérer la clock
- reset_i : in std_logic);
-end state_key_register;
-
-architecture state_key_register_arch of state_key_register is
-begin
- process(reset_i, clock_i) -- On définit ici un process car les fonctions ne doivent pas se faire en même temps
- begin
- if(reset_i = '0') then
- state_key_o <= (others => (others => (others => '0'))); --si rest_i est nul c'est que les valeurs de state_o sont nuls
- elsif(clock_i'event and clock_i = '1') then -- Dans le cas d'un front descendant d'horloge state_o prend la valeur de state_i. On utilise un front descendant d'horloge pour un soucis de synchronisation avec sbox
- state_key_o <= state_key_i;
- end if;
- end process;
-
- end state_key_register_arch;