diff --git a/src/Des.java b/src/Des.java
index 8fb338e..c14e23e 100644
--- a/src/Des.java
+++ b/src/Des.java
@@ -4,45 +4,43 @@
  * pas de copyright, aucun droits
  */
 
+import java.util.ArrayList;
+import java.util.Random;
+
 /**
  * @author Lucàs VABRE
  */
 public class Des {
 
-    final private static int TAILLE_BLOC = 64;
-    final private static int TAILLE_SOUS_BLOC = 32;
-    final private static int NB_RONDE = 1;
-    final private static int[] TAB_DECALAGE = {1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1};
+    private static final int taille_bloc = 64;
+    private static final int taille_sous_bloc = 32;
+    private static final int nb_round = 1;
+    private static final int[] tab_decalage = {1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1};
+    private static final int[] perm_initiale = {58, 50, 42, 34, 26, 18, 10, 2, 60, 52, 44, 36, 28, 20, 12, 4, 62, 54, 46, 38, 30, 22, 14, 6, 64, 56, 48, 40, 32, 24, 16, 8, 57, 49, 41, 33, 25, 17, 9, 1, 59, 51, 43, 35, 27, 19, 11, 3, 61, 53, 45, 37, 29, 21, 13, 5, 63, 55, 47, 39, 31, 23, 15, 7};
+    private static final int[][] S = {{14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7}, {0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8}, {4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0}, {15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13}};
+    private static final int[] E = {32, 1, 2, 3, 4, 5, 4, 5, 6, 7, 8, 9, 8, 9, 10, 11, 12, 13, 12, 13, 14, 15, 16, 17, 16, 17, 18, 19, 20, 21, 20, 21, 22, 23, 24, 25, 24, 25, 26, 27, 28, 29, 28, 29, 30, 31, 32, 1};
 
-    final private static int[] PERM_INITIALE = {
-            58, 50, 42, 34, 26, 18, 10, 2,
-            60, 52, 44, 36, 28, 20, 12, 4,
-            62, 54, 46, 38, 30, 22, 14, 6,
-            64, 56, 48, 40, 32, 24, 16, 8,
-            57, 49, 41, 33, 25, 17,  9, 1,
-            59, 51, 43, 35, 27, 19, 11, 3,
-            61, 53, 45, 37, 29, 21, 13, 5,
-            63, 55, 47, 39, 31, 23, 15, 7
-    };
+    private int[] masterKey = new int[64];
+    private ArrayList<int[]> table_cles;
 
-    final private static int[][] S = {
-            {14,  4, 13, 1,  2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7},
-            {0, 15,  7, 4, 14,  2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8, 2, 4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 50, 3, 15, 12, 8, 2, 4, 9, 175, 11, 3, 14, 10, 0, 6,133
-    };
-    final private static int[] E = {
-            32,  1,  2,  3,  4,  5,
-             4,  5,  6,  7,  8,  9,
-             8,  9, 10, 11, 12, 13,
-            12, 13, 14, 15, 16, 17,
-            16, 17, 21, 18, 19, 20,
-            21, 20, 22, 23, 24, 25,
-            24, 25, 26, 27, 28, 29,
-            28, 29, 30, 31, 32, 1
-    };
-
-
-    private int[] masterKey;
-    private int[] tabCles;
+    public Des() {
+        Random random = new Random();
+        for (int i = 0; i < masterKey.length; i++) {
+            this.masterKey[0] = random.nextInt(2);
+        }
+        this.table_cles = new ArrayList<int[]>();
+
+    }
+
+    private int[] crypte(String message_clair) {
+//        int[] msg_crypte = message_clair.byt
+        return null;
+
+    }
+
+    private int[] stringToBits(String message) {
 
 
+        return null;
+    }
 }