Permuation, InvPermutation

src/cryptography/test/testDes.java

@@ -11,12 +11,53 @@ public class testDes {
     }
 
     public static void testBitsToString() {
-
         System.out.println(Des.bitsToString(Des.stringToBits("Bonjour")));
     }
 
+    public static void testGenerePermutation(){
+        System.out.println(Arrays.toString(Des.generePermutation(64)));
+    }
+
+    public static void testPermuation() {
+        int[] permutation = Des.generePermutation(64);
+        int[] bloc = new int[permutation.length];
+
+        for(int i = 0; i < bloc.length; i++){
+            bloc[i] = i;
+        }
+        System.out.println(Arrays.toString(bloc));
+        Des.permutation(permutation, bloc);
+        System.out.println(Arrays.toString(bloc));
+    }
+
+    public static void testInvPermuation() {
+        int[] permutation = Des.generePermutation(64);
+        int[] bloc = new int[permutation.length];
+        int[] bloc2 = new int[permutation.length];
+        for(int i = 0; i < bloc.length; i++) {
+            bloc[i] = i;
+            bloc2[i] = i;
+        }
+
+        System.out.println("Bloc avant permuation: ");
+        System.out.println(Arrays.toString(bloc));
+
+        Des.permutation(permutation, bloc);
+        System.out.println("Bloc apres permuation: ");
+        System.out.println(Arrays.toString(bloc));
+
+        Des.invPermuation(permutation, bloc);
+        System.out.println("Bloc après Inv-permuation: ");
+        System.out.println(Arrays.toString(bloc));
+
+        System.out.println(Arrays.equals(bloc, bloc2));
+    }
+
     public static void main(String[] args) {
-        testStringToBits();
-        testBitsToString();
+        // testStringToBits();
+        // testBitsToString();
+        // testGenerePermutation();
+        // testPermuation();
+        testInvPermuation();
     }
 }