generateur de mdp en java #188

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1. zainoxIII commented on Nov 3, 2025

   

   zainoxIII

   on Nov 3, 2025

   Author

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   // Fichier: PasswordGeneratorGUI.java import javax.swing.; import java.awt.; import java.awt.datatransfer.; import java.awt.event.; import java.security.SecureRandom; import java.util.*;

   public class PasswordGeneratorGUI extends JFrame { private static final String LOWER = "abcdefghijklmnopqrstuvwxyz"; private static final String UPPER = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; private static final String DIGIT = "0123456789"; private static final String SYMBOL = "!@#$%^&*;

   private static final Set<Character> SIMILAR = new HashSet<>(Arrays.asList(
           '0','O','o','1','l','I','|','5','S','2','Z','8','B'
   ));
   
   
   private static final SecureRandom RNG = new SecureRandom();
   
   // UI components
   private JTextField outputField;
   private JSlider lengthSlider;
   private JCheckBox lowerBox, upperBox, digitBox, symbolBox, excludeSimilarBox, requireEachBox;
   private JLabel entropyLabel, strengthLabel;
   
   public PasswordGeneratorGUI() {
       super("🔐 Générateur de mots de passe");
   
       setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
       setSize(500, 300);
       setLayout(new BorderLayout(10,10));
   
       // Top output
       JPanel top = new JPanel(new BorderLayout(5,5));
       outputField = new JTextField();
       outputField.setFont(new Font("Monospaced", Font.PLAIN, 16));
       top.add(outputField, BorderLayout.CENTER);
   
       JButton copyBtn = new JButton("Copier");
       copyBtn.addActionListener(e -> copyToClipboard());
       top.add(copyBtn, BorderLayout.EAST);
   
       add(top, BorderLayout.NORTH);
   
       // Center controls
       JPanel center = new JPanel();
   
       center.setLayout(new GridLayout(0,2));
   
       lowerBox = new JCheckBox("Minuscules (a-z)", true);
       upperBox = new JCheckBox("Majuscules (A-Z)", true);
       digitBox = new JCheckBox("Chiffres (0-9)", true);
       symbolBox = new JCheckBox("Symboles (!@#…)", true);
       excludeSimilarBox = new JCheckBox("Exclure caractères ambigus (0,O,1,l...)", true);
       requireEachBox = new JCheckBox("Exiger ≥1 caractère de chaque catégorie", true);
   
       center.add(lowerBox);
       center.add(upperBox);
       center.add(digitBox);
       center.add(symbolBox);
       center.add(excludeSimilarBox);
       center.add(requireEachBox);
   
       add(center, BorderLayout.CENTER);
   
       // Bottom panel
       JPanel bottom = new JPanel(new BorderLayout(5,5));
   
       lengthSlider = new JSlider(8, 64, 16);
       lengthSlider.setMajorTickSpacing(14);
       lengthSlider.setMinorTickSpacing(2);
       lengthSlider.setPaintTicks(true);
       lengthSlider.setPaintLabels(true);
   
       bottom.add(new JLabel("Longueur :"), BorderLayout.WEST);
       bottom.add(lengthSlider, BorderLayout.CENTER);
   
       JButton genBtn = new JButton("Générer");
       genBtn.addActionListener(e -> generatePassword());
       bottom.add(genBtn, BorderLayout.EAST);
   
       add(bottom, BorderLayout.SOUTH);
   
       // Status panel
       JPanel status = new JPanel(new GridLayout(2,1));
       entropyLabel = new JLabel("Entropie : -- bits");
       strengthLabel = new JLabel("Robustesse : --");
       status.add(entropyLabel);
       status.add(strengthLabel);
       add(status, BorderLayout.WEST);
   
       setLocationRelativeTo(null); // center window
       setVisible(true);
   }
   
   private void copyToClipboard() {
       String text = outputField.getText();
       if (text.isEmpty()) return;
       Toolkit.getDefaultToolkit()
               .getSystemClipboard()
               .setContents(new StringSelection(text), null);
       JOptionPane.showMessageDialog(this, "Mot de passe copié !");
   }
   
   private void generatePassword() {
       int length = lengthSlider.getValue();
   
       java.util.List<String> sets = new ArrayList<>();
       if (lowerBox.isSelected()) sets.add(LOWER);
       if (upperBox.isSelected()) sets.add(UPPER);
       if (digitBox.isSelected()) sets.add(DIGIT);
       if (symbolBox.isSelected()) sets.add(SYMBOL);
   
       String pool = combineAndFilter(sets, excludeSimilarBox.isSelected());
   
       if (pool.isEmpty()) {
           JOptionPane.showMessageDialog(this, "Aucun jeu de caractères disponible !");
           return;
       }
   
       String pwd = requireEachBox.isSelected()
               ? generateWithRequirement(length, sets, pool, excludeSimilarBox.isSelected())
               : randomFromPool(pool, length);
   
       outputField.setText(pwd);
   
       // update entropy
       int uniqueChars = (int) pool.chars().distinct().count();
       double entropyBits = length * (Math.log(uniqueChars)/Math.log(2));
       String strength = strengthLabel(entropyBits);
   
       entropyLabel.setText(String.format("Entropie : ~%.0f bits", entropyBits));
       strengthLabel.setText("Robustesse : " + strength);
   }
   
   private String combineAndFilter(java.util.List<String> sets, boolean excludeSimilar) {
       StringBuilder sb = new StringBuilder();
       for (String s : sets) sb.append(s);
   
       StringBuilder out = new StringBuilder();
       for (char c : sb.toString().toCharArray()) {
           if (excludeSimilar && SIMILAR.contains(c)) continue;
           out.append(c);
       }
       return out.toString();
   }
   
   private String generateWithRequirement(int length, java.util.List<String> sets, String pool, boolean excludeSimilar) {
       java.util.List<Character> chars = new ArrayList<>();
   
       for (String s : sets) {
           String filtered = combineAndFilter(Collections.singletonList(s), excludeSimilar);
           if (!filtered.isEmpty()) {
               chars.add(filtered.charAt(RNG.nextInt(filtered.length())));
           }
       }
   
       for (int i = chars.size(); i < length; i++) {
           chars.add(pool.charAt(RNG.nextInt(pool.length())));
       }
   
       // shuffle
       Collections.shuffle(chars, RNG);
       StringBuilder sb = new StringBuilder();
       for (char c : chars) sb.append(c);
       return sb.toString();
   }
   
   private String randomFromPool(String pool, int length) {
       StringBuilder sb = new StringBuilder(length);
       for (int i = 0; i < length; i++) {
           sb.append(pool.charAt(RNG.nextInt(pool.length())));
       }
       return sb.toString();
   }
   
   private String strengthLabel(double bits) {
       if (bits < 28) return "Très faible";
       if (bits < 36) return "Faible";
       if (bits < 60) return "Correct";
       if (bits < 128) return "Fort";
       return "Très fort";
   }
   
   public static void main(String[] args) {
       SwingUtilities.invokeLater(PasswordGeneratorGUI::new);
   }
   
2. huangfuyixiao commented on Nov 3, 2025

   

   huangfuyixiao

   on Nov 3, 2025 via email

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   来件已收到，我会尽快回复
3. SiweiZhong commented on Nov 3, 2025

   

   SiweiZhong

   on Nov 3, 2025 via email

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   感谢来信！已收到您的邮件！