;

    public abstract byte[] hash(Algorithm algorithm, byte[] input);
  }

  private enum Algorithm {
    MD5("MD5", Hashing.md5()),
    SHA_1("SHA-1", Hashing.sha1()),
    SHA_256("SHA-256", Hashing.sha256()),
    SHA_384("SHA-384", Hashing.sha384()),
    SHA_512("SHA-512", Hashing.sha512());

    private final String algorithmName;
    private final HashFunction hashFn;

        new MessageDigestHashFunction("SHA-256", "Hashing.sha256()");
  }

  /**
   * Returns a hash function implementing the SHA-384 algorithm (384 hash bits).
   *
   * @since 19.0
   */
  public static HashFunction sha384() {
    return Sha384Holder.SHA_384;
  }

  private static class Sha384Holder {
    static final HashFunction SHA_384 =

        assertEquals("31f30ddbcb1bf8446576f0e64aa4c88a9f055e3c", MessageDigestUtil.digest("SHA-1", text));
        assertEquals("ecb666d778725ec97307044d642bf4d160aabb76f56c0069c71ea25b1e926825", MessageDigestUtil.digest("SHA-256", text));

        try {
            MessageDigestUtil.digest(null, text);
            assertTrue(false);

        }
    }


    /**
     * @return SHA512 digest
     */
    public static MessageDigest getSHA512 () {
        try {
            return MessageDigest.getInstance("SHA-512");
        }
        catch ( NoSuchAlgorithmException e ) {
            throw new CIFSUnsupportedCryptoException(e);
        }
    }


    /**
     * 
     * @param key
     * @return HMACT64 MAC

        }
        sourceState.set(result);
        return result;
    }

    static String sha1(Path path) throws NoSuchAlgorithmException, IOException {
        MessageDigest md = MessageDigest.getInstance("SHA-1");
        try (InputStream fis = Files.newInputStream(path)) {
            byte[] buffer = new byte[SHA1_BUFFER_SIZE];
            int read;
            while ((read = fis.read(buffer)) != -1) {

         * Returns the algorithm name, usually used as key, never {@code null} value. The name is a standard name of
         * algorithm (if applicable) or any other designator that is algorithm commonly referred with. Example: "SHA-1".
         */
        @Nonnull
        String getName();

        /**
         * Returns the file extension to be used for given checksum file (without leading dot), never {@code null}. The

    ;

    public abstract byte[] hash(Algorithm algorithm, byte[] input);
  }

  private enum Algorithm {
    MD5("MD5", Hashing.md5()),
    SHA_1("SHA-1", Hashing.sha1()),
    SHA_256("SHA-256", Hashing.sha256()),
    SHA_384("SHA-384", Hashing.sha384()),
    SHA_512("SHA-512", Hashing.sha512());

    private final String algorithmName;
    private final HashFunction hashFn;

    private static final String[] CHECKSUM_IDS = {"md5", "sha1"};

    /**
     * have to match the CHECKSUM_IDS
     */
    private static final String[] CHECKSUM_ALGORITHMS = {"MD5", "SHA-1"};

    @Inject
    private Logger logger;

    @Inject
    private PlexusContainer container;

    @Inject
    private UpdateCheckManager updateCheckManager;

    @Inject

          .put("sHa-1", Hashing.sha1()) // Not the official name, but still works
          .put("SHA-1", Hashing.sha1())
          .put("SHA-256", Hashing.sha256())
          .put("SHA-384", Hashing.sha384())
          .put("SHA-512", Hashing.sha512())
          .build();

  public void testHashing() {
    for (String stringToTest : INPUTS) {
      for (String algorithmToTest : ALGORITHMS.keySet()) {

/**
 * Benchmarks for comparing instance creation of {@link MessageDigest}s.
 *
 * @author Kurt Alfred Kluever
 */
public class MessageDigestCreationBenchmark {

  @Param({"MD5", "SHA-1", "SHA-256", "SHA-384", "SHA-512"})
  private String algorithm;

  private MessageDigest md;

  @BeforeExperiment
  void setUp() throws Exception {
    md = MessageDigest.getInstance(algorithm);
  }

  @Benchmark