Chaque fois que vous fournissez exactement le même contenu (exactement le même mot de passe), vous obtenez exactement le même charabia.

Mais vous ne pouvez pas convertir le charabia en sens inverse vers le mot de passe.

### Pourquoi utiliser le hachage de mot passe { #why-use-password-hashing }

Si votre base de données est volée, le voleur n'aura pas les mots de passe en clair de vos utilisateurs, seulement les hachages.

        requestBody.put("paths", paths);
        requestBody.put("excluded_paths", ".*\\.git.*");
        requestBody.put("max_access_count", 100); // Keep original - search tests need diverse documents
        requestBody.put("num_of_thread", 1);
        requestBody.put("interval_time", 0); // No delay between file access
        requestBody.put("boost", 100);
        requestBody.put("permissions", "{role}guest");

 * @since 10.0
 */
@GwtCompatible
public final class UnsignedLongs {
  private UnsignedLongs() {}

  public static final long MAX_VALUE = -1L; // Equivalent to 2^64 - 1

  /**
   * A (self-inverse) bijection which converts the ordering on unsigned longs to the ordering on
   * longs, that is, {@code a <= b} as unsigned longs if and only if {@code flip(a) <= flip(b)} as
   * signed longs.
   */

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   *
   * @since 20.0
   */
  public abstract boolean canDecode(CharSequence chars);

  /**
   * Decodes the specified character sequence, and returns the resulting {@code byte[]}. This is the
   * inverse operation to {@link #encode(byte[])}.
   *
   * @throws IllegalArgumentException if the input is not a valid encoded string according to this
   *     encoding.
   */
  public final byte[] decode(CharSequence chars) {

 * (note: even fixed-length splitters).
 *
 * <p>Splitter instances are thread-safe immutable, and are therefore safe to store as {@code static
 * final} constants.
 *
 * <p>The {@link Joiner} class provides the inverse operation to splitting, but note that a
 * round-trip between the two should be assumed to be lossy.
 *
 * <p>See the Guava User Guide article on <a

   * but ProGuard can't figure out how to eliminate that default when RegularImmutableMap overrides
   * it.
   */
  abstract ImmutableCollection<V> createValues();

  // cached so that this.multimapView().inverse() only computes inverse once
  @LazyInit private transient @Nullable ImmutableSetMultimap<K, V> multimapView;

  /**
   * Returns a multimap view of the map.
   *
   * @since 14.0
   */

   * it.
   */
  abstract ImmutableCollection<V> createValues();

  // cached so that this.multimapView().inverse() only computes inverse once
  @LazyInit private transient @Nullable ImmutableSetMultimap<K, V> multimapView;

  /**
   * Returns a multimap view of the map.
   *
   * @since 14.0
   */

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 * to {@code A}; used for converting back and forth between <i>different representations of the same
 * information</i>.
 *
 * <h3>Invertibility</h3>
 *
 * <p>The reverse operation <b>may</b> be a strict <i>inverse</i> (meaning that {@code
 * converter.reverse().convert(converter.convert(a)).equals(a)} is always true). However, it is very
 * common (perhaps <i>more</i> common) for round-trip conversion to be <i>lossy</i>. Consider an