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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 IEEE;
+library work;
+use IEEE.STD_LOGIC_1164.ALL;
+
+package const_pack is
+	--Lilliput constants
+	constant NONCE_LEN : integer := 120;
+	constant TAG_LEN   : integer := 128;
+	constant DATA_LEN  : integer := 128;
+
+	--Lilliput parameters
+	constant ROUND_NB  : integer := 36;
+	constant TWEAK_LEN : integer := 128;
+	constant KEY_LEN   : integer := 192;
+
+	-- lenght of inputs
+	constant DATA_IN_LEN  : integer := 32;
+	constant KEY_IN_LEN   : integer := 32;
+	constant TWEAK_IN_LEN : integer := 32;
+	constant DATA_OUT_LEN : integer := 32;
+	constant sw           : integer := 32;
+	constant W            : integer := 32;
+
+
+	-- Segment Type Encoding
+	constant TYPE_AD    : std_logic_vector(3 downto 0) := "0001";
+	constant TYPE_MES   : std_logic_vector(3 downto 0) := "0100";
+	constant TYPE_CT    : std_logic_vector(3 downto 0) := "1001";
+	constant TYPE_TAG   : std_logic_vector(3 downto 0) := "1000";
+	constant TYPE_NONCE : std_logic_vector(3 downto 0) := "1100";
+end const_pack;