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diff --git a/src/add_vhdltbc/encrypt/key_schedule.vhd b/src/add_vhdltbc/encrypt/key_schedule.vhd
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+library IEEE;
+library work;
+use IEEE.numeric_std.ALL;
+use IEEE.STD_LOGIC_1164.ALL;
+use work.crypt_pack.ALL;
+
+
+entity key_schedule_liliput is 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 key_schedule_liliput;
+
+architecture key_schedule_liliput_arch of key_schedule_liliput is
+
+component multiplications port(
+    mularray_i  : in type_tweak_key_array;
+    mularray_o  : out type_tweak_key_array
+);
+end component;
+
+    
+signal key_s : type_tweak_key_array;
+signal round_key_s : type_key;
+
+begin 
+
+multiplications_t : multiplications
+port map (
+    mularray_i => key_i,
+    mularray_o => key_s
+);
+
+key_o<=key_s;
+
+if_lane4: if  LANE_NB=4 generate
+    col2: for j in 0 to 3 generate
+        round_key_s(0)(j)   <= key_i(0)(j) xor key_i(1)(j) xor key_i(2)(j) xor key_i(3)(j) ; 
+        round_key_s(1)(j)   <= key_i(0)(j+4) xor key_i(1)(j+4) xor key_i(2)(j+4) xor key_i(3)(j+4);
+    end generate;
+end generate;
+
+if_lane5: if  LANE_NB=5 generate
+    col2: for j in 0 to 3 generate
+        round_key_s(0)(j)   <= key_i(0)(j) xor key_i(1)(j) xor key_i(2)(j) xor key_i(3)(j) xor key_i(4)(j) ; 
+        round_key_s(1)(j)   <= key_i(0)(j+4) xor key_i(1)(j+4) xor key_i(2)(j+4) xor key_i(3)(j+4) xor key_i(4)(j+4);
+    end generate;
+end generate;
+
+if_lane6: if  LANE_NB=6 generate
+    col2: for j in 0 to 3 generate
+        round_key_s(0)(j)   <= key_i(0)(j) xor key_i(1)(j) xor key_i(2)(j) xor key_i(3)(j) xor key_i(4)(j) xor key_i(5)(j) ; 
+        round_key_s(1)(j)   <= key_i(0)(j+4) xor key_i(1)(j+4) xor key_i(2)(j+4) xor key_i(3)(j+4) xor key_i(4)(j+4) xor key_i(5)(j+4);
+    end generate;
+end generate;
+
+if_lane7: if  LANE_NB=7 generate
+    col2: for j in 0 to 3 generate
+        round_key_s(0)(j)   <= key_i(0)(j) xor key_i(1)(j) xor key_i(2)(j) xor key_i(3)(j) xor key_i(4)(j) xor key_i(5)(j) xor key_i(6)(j) ; 
+        round_key_s(1)(j)   <= key_i(0)(j+4) xor key_i(1)(j+4) xor key_i(2)(j+4) xor key_i(3)(j+4) xor key_i(4)(j+4) xor key_i(5)(j+4) xor key_i(6)(j+4);
+    end generate;
+end generate;
+
+
+row1: for j in 0 to 3 generate
+        round_key_o(0)(j)   <= round_key_s(0)(j) xor round_number  when j= 0 else --on XOR chaque element des matrices de multiplications a l'index 0 avec le numero de tour 
+                               round_key_s(0)(j); --on XOR chaque element des matrices de multiplications entre les index 1 et 3 
+        round_key_o(1)(j)   <= round_key_s(1)(j);
+end generate;
+
+
+end key_schedule_liliput_arch;
+
+
+configuration key_schedule_liliput_conf of key_schedule_liliput is 
+	for key_schedule_liliput_arch
+        for multiplications_t : multiplications
+            use entity work.multiplications(Behavioral);
+        end for;
+    end for;
+end configuration key_schedule_liliput_conf ;