lucasvbr/data-encryption-standard
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Lucàs
2022-09-20 13:31:24 +02:00
parent ef22f6ecaf
commit a829ea3cdd
1 changed files with 30 additions and 32 deletions
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src/Des.java
+30 -32
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@@ -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;
}
}