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Diffstat (limited to 'src/add_vhdltbc/ii/roundexe_liliput.vhd')
| -rw-r--r-- | src/add_vhdltbc/ii/roundexe_liliput.vhd | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/src/add_vhdltbc/ii/roundexe_liliput.vhd b/src/add_vhdltbc/ii/roundexe_liliput.vhd new file mode 100644 index 0000000..d407f6a --- /dev/null +++ b/src/add_vhdltbc/ii/roundexe_liliput.vhd @@ -0,0 +1,139 @@ +-- 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 roundexe_liliput is + port ( + clock_i : in std_logic; + reset_i : in std_logic; + data_i : in bit_data; --donnée d'entrée lors du premier Round + keyb_i : in bit_key; + tweak_i : in bit_tweak; + invert_i : in std_logic; + round_number_i : in std_logic_vector(7 downto 0); + permut_valid_i : in std_logic; --permet de savoir si on fait la permutation à la fin + mux_keyschdule_i : in std_logic; + mux_chiffrement_i : in std_logic; + data_out_valid_i : in std_logic; + data_out_valid_o : out std_logic; + decrypt_i : in std_logic; + data_o : out bit_data + ); +end roundexe_liliput; + +architecture roundexe_liliput_arch of roundexe_liliput is + + component chiffrement + port( + chiffrement_i : in type_state; + permutation_i : in std_logic; + round_key_i : in type_key; + chiffrement_o : out type_state + ); + end component; + + component key_schedule_liliput + port ( + key_i : in type_tweak_key_array; + round_number : in std_logic_vector(7 downto 0); + key_o : out type_tweak_key_array; + round_key_o : out type_key + ); + end component; + + + signal data_i_s : type_state; + signal chiffrement_o_s : type_state; + signal mux_1_s : type_state; + signal mux_2_s : type_tweak_key_array; + signal state_o_s : type_state; + signal state_tk_o_s : type_tweak_key_array; + signal round_key_o_s : type_key; + signal state_round_key_s : type_key; + signal tweak_key_i : bit_tweak_key := (others => '0'); + signal tk_s : type_tweak_key_array; + signal tk_o_s : type_tweak_key_array; + signal data_out_valid_s : std_logic; + +begin + + convertion_ligne : for i in 0 to 3 generate + convertion_colonne : for j in 0 to 3 generate + data_i_s(i)(j) <= data_i(127-8*(j+(4*i))downto 120-8*(j+(4*i))); + data_o(127-8*(j+(4*i))downto 120-8*(j+(4*i))) <= state_o_s(i)(j) when data_out_valid_s = '1' else X"00"; + end generate; + end generate; + + data_out_valid_o <= data_out_valid_s; + + reg_roundkey : process(reset_i, clock_i) + begin + if(reset_i = '0') then + state_round_key_s <= (others => (others => (others => '0'))); + state_tk_o_s <= (others => (others => (others => '0'))); + state_o_s <= (others => (others => (others => '0'))); + data_out_valid_s <= '0'; + + elsif(clock_i'event and clock_i = '1') then + state_round_key_s <= round_key_o_s; + state_tk_o_s <= tk_o_s; + state_o_s <= mux_1_s; + data_out_valid_s <= data_out_valid_i; + end if; + end process reg_roundkey; + + --Tweak_key concatenation + tweak_key_i (TWEAK_KEY_LEN downto 0) <= tweak_i & keyb_i; + + --formatting tweak_key in type_tweak_key_array + convertion_ligne_key : for i in 0 to LANE_NB-1 generate + convertion_colonne_key : for j in 0 to 7 generate + tk_s(i)(j) <= tweak_key_i( (TWEAK_KEY_LEN)-8*(8*i+j)downto TWEAK_KEY_LEN-7-8*(8*i+j)); + end generate; + end generate; + + --Avantage on n'utilise le même mux donc pas de changement dans la machine d'état + mux_1_s <= data_i_s when mux_chiffrement_i = '1' else + chiffrement_o_s; + + mux_2_s <= tk_s when mux_keyschdule_i = '1' else + state_tk_o_s; + + key_schedule_t : key_schedule_liliput port map( + key_i => mux_2_s, + round_number => round_number_i, + key_o => tk_o_s, + round_key_o => round_key_o_s + ); + + chiffrement_t : chiffrement port map( + chiffrement_i => state_o_s, + permutation_i => permut_valid_i, + round_key_i => state_round_key_s, + chiffrement_o => chiffrement_o_s + ); + +end roundexe_liliput_arch; + +configuration roundexe_liliput_conf of roundexe_liliput is + for roundexe_liliput_arch + for key_schedule_t : key_schedule_liliput + use entity work.key_schedule_liliput(key_schedule_liliputr_arch); + end for; + for chiffrement_t : chiffrement + use entity work.chiffrement(chiffrement_arch); + end for; + end for; +end configuration roundexe_liliput_conf;
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