/*
    * Licensed to the Apache Software Foundation (ASF) under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * The ASF licenses this file to You under the Apache License, Version 2.0
    * (the "License"); you may not use this file except in compliance with
    * the License.  You may obtain a copy of the License at
    *
    *      https://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package org.apache.commons.codec.digest;
  
  import java.io.BufferedInputStream;
  import java.io.File;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.RandomAccessFile;
  import java.nio.ByteBuffer;
  import java.nio.channels.FileChannel;
  import java.nio.file.Files;
  import java.nio.file.OpenOption;
  import java.nio.file.Path;
  import java.security.MessageDigest;
  import java.security.NoSuchAlgorithmException;
  
  import org.apache.commons.codec.binary.Hex;
  import org.apache.commons.codec.binary.StringUtils;
  
  /**
   * Operations to simplify common {@link java.security.MessageDigest} tasks. This class is immutable and thread-safe. However the MessageDigest instances it
   * creates generally won't be.
   * <p>
   * The {@link MessageDigestAlgorithms} class provides constants for standard digest algorithms that can be used with the {@link #getDigest(String)} method and
   * other methods that require the Digest algorithm name.
   * </p>
   * <p>
   * Note: The class has shorthand methods for all the algorithms present as standard in Java 6. This approach requires lots of methods for each algorithm, and
   * quickly becomes unwieldy. The following code works with all algorithms:
   * </p>
   *
   * <pre>
   * import static org.apache.commons.codec.digest.MessageDigestAlgorithms.SHA_224;
   * ...
   * byte [] digest = new DigestUtils(SHA_224).digest(dataToDigest);
   * String hdigest = new DigestUtils(SHA_224).digestAsHex(new File("pom.xml"));
   * </pre>
   *
   * @see MessageDigestAlgorithms
   */
  public class DigestUtils {
  
      /**
       * Package-private for tests.
       */
      static final int BUFFER_SIZE = 1024;
  
      /**
       * Reads through a byte array and returns the digest for the data. Provided for symmetry with other methods.
       *
       * @param messageDigest The MessageDigest to use (for example MD5)
       * @param data          Data to digest
       * @return the digest
       * @since 1.11
       */
      public static byte[] digest(final MessageDigest messageDigest, final byte[] data) {
          return messageDigest.digest(data);
      }
  
      /**
       * Reads through a ByteBuffer and returns the digest for the data
       *
       * @param messageDigest The MessageDigest to use (for example MD5)
       * @param data          Data to digest
       * @return the digest
       * @since 1.11
       */
      public static byte[] digest(final MessageDigest messageDigest, final ByteBuffer data) {
          messageDigest.update(data);
          return messageDigest.digest();
      }
  
      /**
       * Reads through a File and returns the digest for the data
       *
       * @param messageDigest The MessageDigest to use (for example MD5)
       * @param data          Data to digest
       * @return the digest
       * @throws IOException On error reading from the stream
       * @since 1.11
       */
      public static byte[] digest(final MessageDigest messageDigest, final File data) throws IOException {
          return updateDigest(messageDigest, data).digest();
     }
 
     /**
      * Reads through an InputStream and returns the digest for the data
      *
      * @param messageDigest The MessageDigest to use (for example MD5)
      * @param data          Data to digest
      * @return the digest
      * @throws IOException On error reading from the stream
      * @since 1.11 (was private)
      */
     public static byte[] digest(final MessageDigest messageDigest, final InputStream data) throws IOException {
         return updateDigest(messageDigest, data).digest();
     }
 
     /**
      * Reads through a File and returns the digest for the data
      *
      * @param messageDigest The MessageDigest to use (for example MD5)
      * @param data          Data to digest
      * @param options       options How to open the file
      * @return the digest
      * @throws IOException On error reading from the stream
      * @since 1.14
      */
     public static byte[] digest(final MessageDigest messageDigest, final Path data, final OpenOption... options) throws IOException {
         return updateDigest(messageDigest, data, options).digest();
     }
 
     /**
      * Reads through a RandomAccessFile using non-blocking-io (NIO) and returns the digest for the data
      *
      * @param messageDigest The MessageDigest to use (for example MD5)
      * @param data          Data to digest
      * @return the digest
      * @throws IOException On error reading from the stream
      * @since 1.14
      */
     public static byte[] digest(final MessageDigest messageDigest, final RandomAccessFile data) throws IOException {
         return updateDigest(messageDigest, data).digest();
     }
 
     /**
      * Gets a {@code MessageDigest} for the given {@code algorithm}.
      *
      * @param algorithm the name of the algorithm requested. See
      *                  <a href="https://docs.oracle.com/javase/6/docs/technotes/guides/security/crypto/CryptoSpec.html#AppA">Appendix A in the Java
      *                  Cryptography Architecture Reference Guide</a> for information about standard algorithm names.
      * @return A digest instance.
      * @see MessageDigest#getInstance(String)
      * @throws IllegalArgumentException when a {@link NoSuchAlgorithmException} is caught.
      */
     public static MessageDigest getDigest(final String algorithm) {
         try {
             return getMessageDigest(algorithm);
         } catch (final NoSuchAlgorithmException e) {
             throw new IllegalArgumentException(e);
         }
     }
 
     /**
      * Gets a {@code MessageDigest} for the given {@code algorithm} or a default if there is a problem getting the algorithm.
      *
      * @param algorithm            the name of the algorithm requested. See
      *                             <a href="https://docs.oracle.com/javase/6/docs/technotes/guides/security/crypto/CryptoSpec.html#AppA"> Appendix A in the Java
      *                             Cryptography Architecture Reference Guide</a> for information about standard algorithm names.
      * @param defaultMessageDigest The default MessageDigest.
      * @return A digest instance.
      * @see MessageDigest#getInstance(String)
      * @throws IllegalArgumentException when a {@link NoSuchAlgorithmException} is caught.
      * @since 1.11
      */
     public static MessageDigest getDigest(final String algorithm, final MessageDigest defaultMessageDigest) {
         try {
             return getMessageDigest(algorithm);
         } catch (final Exception e) {
             return defaultMessageDigest;
         }
     }
 
     /**
      * Gets an MD2 MessageDigest.
      *
      * @return An MD2 digest instance.
      * @throws IllegalArgumentException when a {@link NoSuchAlgorithmException} is caught, which should never happen because MD2 is a built-in algorithm
      * @see MessageDigestAlgorithms#MD2
      * @since 1.7
      */
     public static MessageDigest getMd2Digest() {
         return getDigest(MessageDigestAlgorithms.MD2);
     }
 
     /**
      * Gets an MD5 MessageDigest.
      *
      * @return An MD5 digest instance.
      * @throws IllegalArgumentException when a {@link NoSuchAlgorithmException} is caught, which should never happen because MD5 is a built-in algorithm
      * @see MessageDigestAlgorithms#MD5
      */
     public static MessageDigest getMd5Digest() {
         return getDigest(MessageDigestAlgorithms.MD5);
     }
 
     /**
      * Gets a {@code MessageDigest} for the given {@code algorithm}.
      *
      * @param algorithm the name of the algorithm requested. See
      *                  <a href="https://docs.oracle.com/javase/6/docs/technotes/guides/security/crypto/CryptoSpec.html#AppA"> Appendix A in the Java
      *                  Cryptography Architecture Reference Guide</a> for information about standard algorithm names.
      * @return A digest instance.
      * @see MessageDigest#getInstance(String)
      * @throws NoSuchAlgorithmException if no Provider supports a MessageDigestSpi implementation for the specified algorithm.
      */
     private static MessageDigest getMessageDigest(final String algorithm) throws NoSuchAlgorithmException {
         return MessageDigest.getInstance(algorithm);
     }
 
     /**
      * Gets an SHA-1 digest.
      *
      * @return An SHA-1 digest instance.
      * @throws IllegalArgumentException when a {@link NoSuchAlgorithmException} is caught, which should never happen because SHA-1 is a built-in algorithm
      * @see MessageDigestAlgorithms#SHA_1
      * @since 1.7
      */
     public static MessageDigest getSha1Digest() {
         return getDigest(MessageDigestAlgorithms.SHA_1);
     }
 
     /**
      * Gets an SHA-256 digest.
      *
      * @return An SHA-256 digest instance.
      * @throws IllegalArgumentException when a {@link NoSuchAlgorithmException} is caught, which should never happen because SHA-256 is a built-in algorithm
      * @see MessageDigestAlgorithms#SHA_256
      */
     public static MessageDigest getSha256Digest() {
         return getDigest(MessageDigestAlgorithms.SHA_256);
     }
 
     /**
      * Gets an SHA3-224 digest.
      *
      * @return An SHA3-224 digest instance.
      * @throws IllegalArgumentException when a {@link NoSuchAlgorithmException} is caught, which should not happen on Oracle Java 9 and greater.
      * @see MessageDigestAlgorithms#SHA3_224
      * @since 1.12
      */
     public static MessageDigest getSha3_224Digest() {
         return getDigest(MessageDigestAlgorithms.SHA3_224);
     }
 
     /**
      * Returns an SHA3-256 digest.
      *
      * @return An SHA3-256 digest instance.
      * @throws IllegalArgumentException when a {@link NoSuchAlgorithmException} is caught, which should not happen on Oracle Java 9 and greater.
      * @see MessageDigestAlgorithms#SHA3_256
      * @since 1.12
      */
     public static MessageDigest getSha3_256Digest() {
         return getDigest(MessageDigestAlgorithms.SHA3_256);
     }
 
     /**
      * Gets an SHA3-384 digest.
      *
      * @return An SHA3-384 digest instance.
      * @throws IllegalArgumentException when a {@link NoSuchAlgorithmException} is caught, which should not happen on Oracle Java 9 and greater.
      * @see MessageDigestAlgorithms#SHA3_384
      * @since 1.12
      */
     public static MessageDigest getSha3_384Digest() {
         return getDigest(MessageDigestAlgorithms.SHA3_384);
     }
 
     /**
      * Gets an SHA3-512 digest.
      *
      * @return An SHA3-512 digest instance.
      * @throws IllegalArgumentException when a {@link NoSuchAlgorithmException} is caught, which should not happen on Oracle Java 9 and greater.
      * @see MessageDigestAlgorithms#SHA3_512
      * @since 1.12
      */
     public static MessageDigest getSha3_512Digest() {
         return getDigest(MessageDigestAlgorithms.SHA3_512);
     }
 
     /**
      * Gets an SHA-384 digest.
      *
      * @return An SHA-384 digest instance.
      * @throws IllegalArgumentException when a {@link NoSuchAlgorithmException} is caught, which should never happen because SHA-384 is a built-in algorithm
      * @see MessageDigestAlgorithms#SHA_384
      */
     public static MessageDigest getSha384Digest() {
         return getDigest(MessageDigestAlgorithms.SHA_384);
     }
 
     /**
      * Gets an SHA-512/224 digest.
      *
      * @return An SHA-512/224 digest instance.
      * @throws IllegalArgumentException when a {@link NoSuchAlgorithmException} is caught.
      * @see MessageDigestAlgorithms#SHA_512_224
      */
     public static MessageDigest getSha512_224Digest() {
         return getDigest(MessageDigestAlgorithms.SHA_512_224);
     }
 
     /**
      * Gets an SHA-512/256 digest.
      *
      * @return An SHA-512/256 digest instance.
      * @throws IllegalArgumentException when a {@link NoSuchAlgorithmException} is caught.
      * @see MessageDigestAlgorithms#SHA_512_224
      */
     public static MessageDigest getSha512_256Digest() {
         return getDigest(MessageDigestAlgorithms.SHA_512_256);
     }
 
     /**
      * Gets an SHA-512 digest.
      *
      * @return An SHA-512 digest instance.
      * @throws IllegalArgumentException when a {@link NoSuchAlgorithmException} is caught, which should never happen because SHA-512 is a built-in algorithm
      * @see MessageDigestAlgorithms#SHA_512
      */
     public static MessageDigest getSha512Digest() {
         return getDigest(MessageDigestAlgorithms.SHA_512);
     }
 
     /**
      * Gets an SHA-1 digest.
      *
      * @return An SHA-1 digest instance.
      * @throws IllegalArgumentException when a {@link NoSuchAlgorithmException} is caught
      * @deprecated (1.11) Use {@link #getSha1Digest()}
      */
     @Deprecated
     public static MessageDigest getShaDigest() {
         return getSha1Digest();
     }
 
     /**
      * Test whether the algorithm is supported.
      *
      * @param messageDigestAlgorithm the algorithm name
      * @return {@code true} if the algorithm can be found
      * @since 1.11
      */
     public static boolean isAvailable(final String messageDigestAlgorithm) {
         return getDigest(messageDigestAlgorithm, null) != null;
     }
 
     /**
      * Calculates the MD2 digest and returns the value as a 16 element {@code byte[]}.
      *
      * @param data Data to digest
      * @return MD2 digest
      * @since 1.7
      */
     public static byte[] md2(final byte[] data) {
         return getMd2Digest().digest(data);
     }
 
     /**
      * Calculates the MD2 digest and returns the value as a 16 element {@code byte[]}.
      *
      * @param data Data to digest
      * @return MD2 digest
      * @throws IOException On error reading from the stream
      * @since 1.7
      */
     public static byte[] md2(final InputStream data) throws IOException {
         return digest(getMd2Digest(), data);
     }
 
     /**
      * Calculates the MD2 digest and returns the value as a 16 element {@code byte[]}.
      *
      * @param data Data to digest; converted to bytes using {@link StringUtils#getBytesUtf8(String)}
      * @return MD2 digest
      * @since 1.7
      */
     public static byte[] md2(final String data) {
         return md2(StringUtils.getBytesUtf8(data));
     }
 
     /**
      * Calculates the MD2 digest and returns the value as a 32 character hexadecimal string.
      *
      * @param data Data to digest
      * @return MD2 digest as a hexadecimal string
      * @since 1.7
      */
     public static String md2Hex(final byte[] data) {
         return Hex.encodeHexString(md2(data));
     }
 
     /**
      * Calculates the MD2 digest and returns the value as a 32 character hexadecimal string.
      *
      * @param data Data to digest
      * @return MD2 digest as a hexadecimal string
      * @throws IOException On error reading from the stream
      * @since 1.7
      */
     public static String md2Hex(final InputStream data) throws IOException {
         return Hex.encodeHexString(md2(data));
     }
 
     /**
      * Calculates the MD2 digest and returns the value as a 32 character hexadecimal string.
      *
      * @param data Data to digest
      * @return MD2 digest as a hexadecimal string
      * @since 1.7
      */
     public static String md2Hex(final String data) {
         return Hex.encodeHexString(md2(data));
     }
 
     /**
      * Calculates the MD5 digest and returns the value as a 16 element {@code byte[]}.
      *
      * @param data Data to digest
      * @return MD5 digest
      */
     public static byte[] md5(final byte[] data) {
         return getMd5Digest().digest(data);
     }
 
     /**
      * Calculates the MD5 digest and returns the value as a 16 element {@code byte[]}.
      *
      * @param data Data to digest
      * @return MD5 digest
      * @throws IOException On error reading from the stream
      * @since 1.4
      */
     public static byte[] md5(final InputStream data) throws IOException {
         return digest(getMd5Digest(), data);
     }
 
     /**
      * Calculates the MD5 digest and returns the value as a 16 element {@code byte[]}.
      *
      * @param data Data to digest; converted to bytes using {@link StringUtils#getBytesUtf8(String)}
      * @return MD5 digest
      */
     public static byte[] md5(final String data) {
         return md5(StringUtils.getBytesUtf8(data));
     }
 
     /**
      * Calculates the MD5 digest and returns the value as a 32 character hexadecimal string.
      *
      * @param data Data to digest
      * @return MD5 digest as a hexadecimal string
      */
     public static String md5Hex(final byte[] data) {
         return Hex.encodeHexString(md5(data));
     }
 
     /**
      * Calculates the MD5 digest and returns the value as a 32 character hexadecimal string.
      *
      * @param data Data to digest
      * @return MD5 digest as a hexadecimal string
      * @throws IOException On error reading from the stream
      * @since 1.4
      */
     public static String md5Hex(final InputStream data) throws IOException {
         return Hex.encodeHexString(md5(data));
     }
 
     /**
      * Calculates the MD5 digest and returns the value as a 32 character hexadecimal string.
      *
      * @param data Data to digest
      * @return MD5 digest as a hexadecimal string
      */
     public static String md5Hex(final String data) {
         return Hex.encodeHexString(md5(data));
     }
 
     /**
      * Calculates the SHA-1 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA-1 digest
      * @deprecated (1.11) Use {@link #sha1(byte[])}
      */
     @Deprecated
     public static byte[] sha(final byte[] data) {
         return sha1(data);
     }
 
     /**
      * Calculates the SHA-1 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA-1 digest
      * @throws IOException On error reading from the stream
      * @since 1.4
      * @deprecated (1.11) Use {@link #sha1(InputStream)}
      */
     @Deprecated
     public static byte[] sha(final InputStream data) throws IOException {
         return sha1(data);
     }
 
     /**
      * Calculates the SHA-1 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA-1 digest
      * @deprecated (1.11) Use {@link #sha1(String)}
      */
     @Deprecated
     public static byte[] sha(final String data) {
         return sha1(data);
     }
 
     /**
      * Calculates the SHA-1 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA-1 digest
      * @since 1.7
      */
     public static byte[] sha1(final byte[] data) {
         return getSha1Digest().digest(data);
     }
 
     /**
      * Calculates the SHA-1 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA-1 digest
      * @throws IOException On error reading from the stream
      * @since 1.7
      */
     public static byte[] sha1(final InputStream data) throws IOException {
         return digest(getSha1Digest(), data);
     }
 
     /**
      * Calculates the SHA-1 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest; converted to bytes using {@link StringUtils#getBytesUtf8(String)}
      * @return SHA-1 digest
      */
     public static byte[] sha1(final String data) {
         return sha1(StringUtils.getBytesUtf8(data));
     }
 
     /**
      * Calculates the SHA-1 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-1 digest as a hexadecimal string
      * @since 1.7
      */
     public static String sha1Hex(final byte[] data) {
         return Hex.encodeHexString(sha1(data));
     }
 
     /**
      * Calculates the SHA-1 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-1 digest as a hexadecimal string
      * @throws IOException On error reading from the stream
      * @since 1.7
      */
     public static String sha1Hex(final InputStream data) throws IOException {
         return Hex.encodeHexString(sha1(data));
     }
 
     /**
      * Calculates the SHA-1 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-1 digest as a hexadecimal string
      * @since 1.7
      */
     public static String sha1Hex(final String data) {
         return Hex.encodeHexString(sha1(data));
     }
 
     /**
      * Calculates the SHA-256 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA-256 digest
      * @since 1.4
      */
     public static byte[] sha256(final byte[] data) {
         return getSha256Digest().digest(data);
     }
 
     /**
      * Calculates the SHA-256 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA-256 digest
      * @throws IOException On error reading from the stream
      * @since 1.4
      */
     public static byte[] sha256(final InputStream data) throws IOException {
         return digest(getSha256Digest(), data);
     }
 
     /**
      * Calculates the SHA-256 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest; converted to bytes using {@link StringUtils#getBytesUtf8(String)}
      * @return SHA-256 digest
      * @since 1.4
      */
     public static byte[] sha256(final String data) {
         return sha256(StringUtils.getBytesUtf8(data));
     }
 
     /**
      * Calculates the SHA-256 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-256 digest as a hexadecimal string
      * @since 1.4
      */
     public static String sha256Hex(final byte[] data) {
         return Hex.encodeHexString(sha256(data));
     }
 
     /**
      * Calculates the SHA-256 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-256 digest as a hexadecimal string
      * @throws IOException On error reading from the stream
      * @since 1.4
      */
     public static String sha256Hex(final InputStream data) throws IOException {
         return Hex.encodeHexString(sha256(data));
     }
 
     /**
      * Calculates the SHA-256 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-256 digest as a hexadecimal string
      * @since 1.4
      */
     public static String sha256Hex(final String data) {
         return Hex.encodeHexString(sha256(data));
     }
 
     /**
      * Calculates the SHA3-224 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA3-224 digest
      * @since 1.12
      */
     public static byte[] sha3_224(final byte[] data) {
         return getSha3_224Digest().digest(data);
     }
 
     /**
      * Calculates the SHA3-224 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA3-224 digest
      * @throws IOException On error reading from the stream
      * @since 1.12
      */
     public static byte[] sha3_224(final InputStream data) throws IOException {
         return digest(getSha3_224Digest(), data);
     }
 
     /**
      * Calculates the SHA3-224 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest; converted to bytes using {@link StringUtils#getBytesUtf8(String)}
      * @return SHA3-224 digest
      * @since 1.12
      */
     public static byte[] sha3_224(final String data) {
         return sha3_224(StringUtils.getBytesUtf8(data));
     }
 
     /**
      * Calculates the SHA3-224 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA3-224 digest as a hexadecimal string
      * @since 1.12
      */
     public static String sha3_224Hex(final byte[] data) {
         return Hex.encodeHexString(sha3_224(data));
     }
 
     /**
      * Calculates the SHA3-224 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA3-224 digest as a hexadecimal string
      * @throws IOException On error reading from the stream
      * @since 1.12
      */
     public static String sha3_224Hex(final InputStream data) throws IOException {
         return Hex.encodeHexString(sha3_224(data));
     }
 
     /**
      * Calculates the SHA3-224 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA3-224 digest as a hexadecimal string
      * @since 1.12
      */
     public static String sha3_224Hex(final String data) {
         return Hex.encodeHexString(sha3_224(data));
     }
 
     /**
      * Calculates the SHA3-256 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA3-256 digest
      * @since 1.12
      */
     public static byte[] sha3_256(final byte[] data) {
         return getSha3_256Digest().digest(data);
     }
 
     /**
      * Calculates the SHA3-256 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA3-256 digest
      * @throws IOException On error reading from the stream
      * @since 1.12
      */
     public static byte[] sha3_256(final InputStream data) throws IOException {
         return digest(getSha3_256Digest(), data);
     }
 
     /**
      * Calculates the SHA3-256 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest; converted to bytes using {@link StringUtils#getBytesUtf8(String)}
      * @return SHA3-256 digest
      * @since 1.12
      */
     public static byte[] sha3_256(final String data) {
         return sha3_256(StringUtils.getBytesUtf8(data));
     }
 
     /**
      * Calculates the SHA3-256 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA3-256 digest as a hexadecimal string
      * @since 1.12
      */
     public static String sha3_256Hex(final byte[] data) {
         return Hex.encodeHexString(sha3_256(data));
     }
 
     /**
      * Calculates the SHA3-256 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA3-256 digest as a hexadecimal string
      * @throws IOException On error reading from the stream
      * @since 1.12
      */
     public static String sha3_256Hex(final InputStream data) throws IOException {
         return Hex.encodeHexString(sha3_256(data));
     }
 
     /**
      * Calculates the SHA3-256 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA3-256 digest as a hexadecimal string
      * @since 1.12
      */
     public static String sha3_256Hex(final String data) {
         return Hex.encodeHexString(sha3_256(data));
     }
 
     /**
      * Calculates the SHA3-384 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA3-384 digest
      * @since 1.12
      */
     public static byte[] sha3_384(final byte[] data) {
         return getSha3_384Digest().digest(data);
     }
 
     /**
      * Calculates the SHA3-384 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA3-384 digest
      * @throws IOException On error reading from the stream
      * @since 1.12
      */
     public static byte[] sha3_384(final InputStream data) throws IOException {
         return digest(getSha3_384Digest(), data);
     }
 
     /**
      * Calculates the SHA3-384 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest; converted to bytes using {@link StringUtils#getBytesUtf8(String)}
      * @return SHA3-384 digest
      * @since 1.12
      */
     public static byte[] sha3_384(final String data) {
         return sha3_384(StringUtils.getBytesUtf8(data));
     }
 
     /**
      * Calculates the SHA3-384 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA3-384 digest as a hexadecimal string
      * @since 1.12
      */
     public static String sha3_384Hex(final byte[] data) {
         return Hex.encodeHexString(sha3_384(data));
     }
 
     /**
      * Calculates the SHA3-384 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA3-384 digest as a hexadecimal string
      * @throws IOException On error reading from the stream
      * @since 1.12
      */
     public static String sha3_384Hex(final InputStream data) throws IOException {
         return Hex.encodeHexString(sha3_384(data));
     }
 
     /**
      * Calculates the SHA3-384 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA3-384 digest as a hexadecimal string
      * @since 1.12
      */
     public static String sha3_384Hex(final String data) {
         return Hex.encodeHexString(sha3_384(data));
     }
 
     /**
      * Calculates the SHA3-512 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA3-512 digest
      * @since 1.12
      */
     public static byte[] sha3_512(final byte[] data) {
         return getSha3_512Digest().digest(data);
     }
 
     /**
      * Calculates the SHA3-512 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA3-512 digest
      * @throws IOException On error reading from the stream
      * @since 1.12
      */
     public static byte[] sha3_512(final InputStream data) throws IOException {
         return digest(getSha3_512Digest(), data);
     }
 
     /**
      * Calculates the SHA3-512 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest; converted to bytes using {@link StringUtils#getBytesUtf8(String)}
      * @return SHA3-512 digest
      * @since 1.12
      */
     public static byte[] sha3_512(final String data) {
         return sha3_512(StringUtils.getBytesUtf8(data));
     }
 
     /**
      * Calculates the SHA3-512 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA3-512 digest as a hexadecimal string
      * @since 1.12
      */
     public static String sha3_512Hex(final byte[] data) {
         return Hex.encodeHexString(sha3_512(data));
     }
 
     /**
      * Calculates the SHA3-512 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA3-512 digest as a hexadecimal string
      * @throws IOException On error reading from the stream
      * @since 1.12
      */
     public static String sha3_512Hex(final InputStream data) throws IOException {
         return Hex.encodeHexString(sha3_512(data));
     }
 
     /**
      * Calculates the SHA3-512 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA3-512 digest as a hexadecimal string
      * @since 1.12
      */
     public static String sha3_512Hex(final String data) {
         return Hex.encodeHexString(sha3_512(data));
     }
 
     /**
      * Calculates the SHA-384 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA-384 digest
      * @since 1.4
      */
     public static byte[] sha384(final byte[] data) {
         return getSha384Digest().digest(data);
     }
 
     /**
      * Calculates the SHA-384 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA-384 digest
      * @throws IOException On error reading from the stream
      * @since 1.4
      */
     public static byte[] sha384(final InputStream data) throws IOException {
         return digest(getSha384Digest(), data);
     }
 
     /**
      * Calculates the SHA-384 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest; converted to bytes using {@link StringUtils#getBytesUtf8(String)}
      * @return SHA-384 digest
      * @since 1.4
      */
     public static byte[] sha384(final String data) {
         return sha384(StringUtils.getBytesUtf8(data));
     }
 
     /**
      * Calculates the SHA-384 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-384 digest as a hexadecimal string
      * @since 1.4
      */
     public static String sha384Hex(final byte[] data) {
         return Hex.encodeHexString(sha384(data));
     }
 
     /**
      * Calculates the SHA-384 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-384 digest as a hexadecimal string
      * @throws IOException On error reading from the stream
      * @since 1.4
      */
     public static String sha384Hex(final InputStream data) throws IOException {
         return Hex.encodeHexString(sha384(data));
     }
 
     /**
      * Calculates the SHA-384 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-384 digest as a hexadecimal string
      * @since 1.4
      */
     public static String sha384Hex(final String data) {
         return Hex.encodeHexString(sha384(data));
     }
 
     /**
      * Calculates the SHA-512 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA-512 digest
      * @since 1.4
      */
     public static byte[] sha512(final byte[] data) {
         return getSha512Digest().digest(data);
     }
 
     /**
      * Calculates the SHA-512 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA-512 digest
      * @throws IOException On error reading from the stream
      * @since 1.4
      */
     public static byte[] sha512(final InputStream data) throws IOException {
         return digest(getSha512Digest(), data);
     }
 
     /**
      * Calculates the SHA-512 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest; converted to bytes using {@link StringUtils#getBytesUtf8(String)}
      * @return SHA-512 digest
      * @since 1.4
      */
     public static byte[] sha512(final String data) {
         return sha512(StringUtils.getBytesUtf8(data));
     }
 
     /**
      * Calculates the SHA-512/224 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA-512/224 digest
      * @since 1.14
      */
     public static byte[] sha512_224(final byte[] data) {
         return getSha512_224Digest().digest(data);
     }
 
     /**
      * Calculates the SHA-512/224 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA-512/224 digest
      * @throws IOException On error reading from the stream
      * @since 1.14
      */
     public static byte[] sha512_224(final InputStream data) throws IOException {
         return digest(getSha512_224Digest(), data);
     }
 
     /**
      * Calculates the SHA-512/224 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest; converted to bytes using {@link StringUtils#getBytesUtf8(String)}
      * @return SHA-512/224 digest
      * @since 1.14
      */
     public static byte[] sha512_224(final String data) {
         return sha512_224(StringUtils.getBytesUtf8(data));
     }
 
     /**
      * Calculates the SHA-512/224 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-512/224 digest as a hexadecimal string
      * @since 1.14
      */
     public static String sha512_224Hex(final byte[] data) {
         return Hex.encodeHexString(sha512_224(data));
     }
 
     /**
      * Calculates the SHA-512/224 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-512/224 digest as a hexadecimal string
      * @throws IOException On error reading from the stream
      * @since 1.14
      */
     public static String sha512_224Hex(final InputStream data) throws IOException {
         return Hex.encodeHexString(sha512_224(data));
     }
 
     /**
      * Calculates the SHA-512/224 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-512/224 digest as a hexadecimal string
      * @since 1.14
      */
     public static String sha512_224Hex(final String data) {
         return Hex.encodeHexString(sha512_224(data));
     }
 
     /**
      * Calculates the SHA-512/256 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA-512/256 digest
      * @since 1.14
      */
     public static byte[] sha512_256(final byte[] data) {
         return getSha512_256Digest().digest(data);
     }
 
     /**
      * Calculates the SHA-512/256 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest
      * @return SHA-512/256 digest
      * @throws IOException On error reading from the stream
      * @since 1.14
      */
     public static byte[] sha512_256(final InputStream data) throws IOException {
         return digest(getSha512_256Digest(), data);
     }
 
     /**
      * Calculates the SHA-512/256 digest and returns the value as a {@code byte[]}.
      *
      * @param data Data to digest; converted to bytes using {@link StringUtils#getBytesUtf8(String)}
      * @return SHA-512/224 digest
      * @since 1.14
      */
     public static byte[] sha512_256(final String data) {
         return sha512_256(StringUtils.getBytesUtf8(data));
     }
 
     /**
      * Calculates the SHA-512/256 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-512/256 digest as a hexadecimal string
      * @since 1.14
      */
     public static String sha512_256Hex(final byte[] data) {
         return Hex.encodeHexString(sha512_256(data));
     }
 
     /**
      * Calculates the SHA-512/256 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-512/256 digest as a hexadecimal string
      * @throws IOException On error reading from the stream
      * @since 1.14
      */
     public static String sha512_256Hex(final InputStream data) throws IOException {
         return Hex.encodeHexString(sha512_256(data));
     }
 
     /**
      * Calculates the SHA-512/256 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-512/256 digest as a hexadecimal string
      * @since 1.14
      */
     public static String sha512_256Hex(final String data) {
         return Hex.encodeHexString(sha512_256(data));
     }
 
     /**
      * Calculates the SHA-512 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-512 digest as a hexadecimal string
      * @since 1.4
      */
     public static String sha512Hex(final byte[] data) {
         return Hex.encodeHexString(sha512(data));
     }
 
     /**
      * Calculates the SHA-512 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-512 digest as a hexadecimal string
      * @throws IOException On error reading from the stream
      * @since 1.4
      */
     public static String sha512Hex(final InputStream data) throws IOException {
         return Hex.encodeHexString(sha512(data));
     }
 
     /**
      * Calculates the SHA-512 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-512 digest as a hexadecimal string
      * @since 1.4
      */
     public static String sha512Hex(final String data) {
         return Hex.encodeHexString(sha512(data));
     }
 
     /**
      * Calculates the SHA-1 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-1 digest as a hexadecimal string
      * @deprecated (1.11) Use {@link #sha1Hex(byte[])}
      */
     @Deprecated
     public static String shaHex(final byte[] data) {
         return sha1Hex(data);
     }
 
     /**
      * Calculates the SHA-1 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-1 digest as a hexadecimal string
      * @throws IOException On error reading from the stream
      * @since 1.4
      * @deprecated (1.11) Use {@link #sha1Hex(InputStream)}
      */
     @Deprecated
     public static String shaHex(final InputStream data) throws IOException {
         return sha1Hex(data);
     }
 
     /**
      * Calculates the SHA-1 digest and returns the value as a hexadecimal string.
      *
      * @param data Data to digest
      * @return SHA-1 digest as a hexadecimal string
      * @deprecated (1.11) Use {@link #sha1Hex(String)}
      */
     @Deprecated
     public static String shaHex(final String data) {
         return sha1Hex(data);
     }
 
     /**
      * Updates the given {@link MessageDigest}.
      *
      * @param messageDigest the {@link MessageDigest} to update
      * @param valueToDigest the value to update the {@link MessageDigest} with
      * @return the updated {@link MessageDigest}
      * @since 1.7
      */
     public static MessageDigest updateDigest(final MessageDigest messageDigest, final byte[] valueToDigest) {
         messageDigest.update(valueToDigest);
         return messageDigest;
     }
 
     /**
      * Updates the given {@link MessageDigest}.
      *
      * @param messageDigest the {@link MessageDigest} to update
      * @param valueToDigest the value to update the {@link MessageDigest} with
      * @return the updated {@link MessageDigest}
      * @since 1.11
      */
     public static MessageDigest updateDigest(final MessageDigest messageDigest, final ByteBuffer valueToDigest) {
         messageDigest.update(valueToDigest);
         return messageDigest;
     }
 
     /**
      * Reads through a File and updates the digest for the data
      *
      * @param digest The MessageDigest to use (for example MD5)
      * @param data   Data to digest
      * @return the digest
      * @throws IOException On error reading from the stream
      * @since 1.11
      */
     public static MessageDigest updateDigest(final MessageDigest digest, final File data) throws IOException {
         return updateDigest(digest, data.toPath());
     }
 
     /**
      * Reads through a RandomAccessFile and updates the digest for the data using non-blocking-io (NIO).
      *
      * TODO Decide if this should be public.
      *
      * @param digest The MessageDigest to use (for example MD5)
      * @param data   Data to digest
      * @return the digest
      * @throws IOException On error reading from the stream
      * @since 1.14
      */
     private static MessageDigest updateDigest(final MessageDigest digest, final FileChannel data) throws IOException {
         final ByteBuffer buffer = ByteBuffer.allocate(BUFFER_SIZE);
         while (data.read(buffer) > 0) {
             buffer.flip();
             digest.update(buffer);
             buffer.clear();
         }
         return digest;
     }
 
     /**
      * Reads through an InputStream and updates the digest for the data
      *
      * @param digest      The MessageDigest to use (for example MD5)
      * @param inputStream Data to digest
      * @return the digest
      * @throws IOException On error reading from the stream
      * @since 1.8
      */
     public static MessageDigest updateDigest(final MessageDigest digest, final InputStream inputStream) throws IOException {
         final byte[] buffer = new byte[BUFFER_SIZE];
         int read = inputStream.read(buffer, 0, BUFFER_SIZE);
         while (read > -1) {
             digest.update(buffer, 0, read);
             read = inputStream.read(buffer, 0, BUFFER_SIZE);
         }
         return digest;
     }
 
     /**
      * Reads through a Path and updates the digest for the data
      *
      * @param digest  The MessageDigest to use (for example MD5)
      * @param path    Data to digest
      * @param options options How to open the file
      * @return the digest
      * @throws IOException On error reading from the stream
      * @since 1.14
      */
     public static MessageDigest updateDigest(final MessageDigest digest, final Path path, final OpenOption... options) throws IOException {
         try (BufferedInputStream inputStream = new BufferedInputStream(Files.newInputStream(path, options))) {
             return updateDigest(digest, inputStream);
         }
     }
 
     /**
      * Reads through a RandomAccessFile and updates the digest for the data using non-blocking-io (NIO)
      *
      * @param digest The MessageDigest to use (for example MD5)
      * @param data   Data to digest
      * @return the digest
      * @throws IOException On error reading from the stream
      * @since 1.14
      */
     @SuppressWarnings("resource") // Closing RandomAccessFile closes the channel.
     public static MessageDigest updateDigest(final MessageDigest digest, final RandomAccessFile data) throws IOException {
         return updateDigest(digest, data.getChannel());
     }
 
     /**
      * Updates the given {@link MessageDigest} from a String (converted to bytes using UTF-8).
      * <p>
      * To update the digest using a different charset for the conversion, convert the String to a byte array using
      * {@link String#getBytes(java.nio.charset.Charset)} and pass that to the {@link DigestUtils#updateDigest(MessageDigest, byte[])} method
      *
      * @param messageDigest the {@link MessageDigest} to update
      * @param valueToDigest the value to update the {@link MessageDigest} with; converted to bytes using {@link StringUtils#getBytesUtf8(String)}
      * @return the updated {@link MessageDigest}
      * @since 1.7
      */
     public static MessageDigest updateDigest(final MessageDigest messageDigest, final String valueToDigest) {
         messageDigest.update(StringUtils.getBytesUtf8(valueToDigest));
         return messageDigest;
     }
 
     private final MessageDigest messageDigest;
 
     /**
      * Preserves binary compatibility only. As for previous versions does not provide useful behavior
      *
      * @deprecated since 1.11; only useful to preserve binary compatibility
      */
     @Deprecated
     public DigestUtils() {
         this.messageDigest = null;
     }
 
     /**
      * Creates an instance using the provided {@link MessageDigest} parameter.
      *
      * This can then be used to create digests using methods such as {@link #digest(byte[])} and {@link #digestAsHex(File)}.
      *
      * @param digest the {@link MessageDigest} to use
      * @since 1.11
      */
     public DigestUtils(final MessageDigest digest) {
         this.messageDigest = digest;
     }
 
     /**
      * Creates an instance using the provided {@link MessageDigest} parameter.
      *
      * This can then be used to create digests using methods such as {@link #digest(byte[])} and {@link #digestAsHex(File)}.
      *
      * @param name the name of the {@link MessageDigest} to use
      * @see #getDigest(String)
      * @throws IllegalArgumentException when a {@link NoSuchAlgorithmException} is caught.
      * @since 1.11
      */
     public DigestUtils(final String name) {
         this(getDigest(name));
     }
 
     /**
      * Reads through a byte array and returns the digest for the data.
      *
      * @param data Data to digest
      * @return the digest
      * @since 1.11
      */
     public byte[] digest(final byte[] data) {
         return updateDigest(messageDigest, data).digest();
     }
 
     /**
      * Reads through a ByteBuffer and returns the digest for the data
      *
      * @param data Data to digest
      * @return the digest
      * @since 1.11
      */
     public byte[] digest(final ByteBuffer data) {
         return updateDigest(messageDigest, data).digest();
     }
 
     /**
      * Reads through a File and returns the digest for the data
      *
      * @param data Data to digest
      * @return the digest
      * @throws IOException On error reading from the stream
      * @since 1.11
      */
     public byte[] digest(final File data) throws IOException {
         return updateDigest(messageDigest, data).digest();
     }
 
     /**
      * Reads through an InputStream and returns the digest for the data
      *
      * @param data Data to digest
      * @return the digest
      * @throws IOException On error reading from the stream
      * @since 1.11
      */
     public byte[] digest(final InputStream data) throws IOException {
         return updateDigest(messageDigest, data).digest();
     }
 
     /**
      * Reads through a File and returns the digest for the data
      *
      * @param data    Data to digest
      * @param options options How to open the file
      * @return the digest
      * @throws IOException On error reading from the stream
      * @since 1.14
      */
     public byte[] digest(final Path data, final OpenOption... options) throws IOException {
         return updateDigest(messageDigest, data, options).digest();
     }
 
     /**
      * Reads through a byte array and returns the digest for the data.
      *
      * @param data Data to digest treated as UTF-8 string
      * @return the digest
      * @since 1.11
      */
     public byte[] digest(final String data) {
         return updateDigest(messageDigest, data).digest();
     }
 
     /**
      * Reads through a byte array and returns the digest for the data.
      *
      * @param data Data to digest
      * @return the digest as a hexadecimal string
      * @since 1.11
      */
     public String digestAsHex(final byte[] data) {
         return Hex.encodeHexString(digest(data));
     }
 
     /**
      * Reads through a ByteBuffer and returns the digest for the data
      *
      * @param data Data to digest
      * @return the digest as a hexadecimal string
      * @since 1.11
      */
     public String digestAsHex(final ByteBuffer data) {
         return Hex.encodeHexString(digest(data));
     }
 
     /**
      * Reads through a File and returns the digest for the data
      *
      * @param data Data to digest
      * @return the digest as a hexadecimal string
      * @throws IOException On error reading from the stream
      * @since 1.11
      */
     public String digestAsHex(final File data) throws IOException {
         return Hex.encodeHexString(digest(data));
     }
 
     /**
      * Reads through an InputStream and returns the digest for the data
      *
      * @param data Data to digest
      * @return the digest as a hexadecimal string
      * @throws IOException On error reading from the stream
      * @since 1.11
      */
     public String digestAsHex(final InputStream data) throws IOException {
         return Hex.encodeHexString(digest(data));
     }
 
     /**
      * Reads through a File and returns the digest for the data
      *
      * @param data    Data to digest
      * @param options options How to open the file
      * @return the digest as a hexadecimal string
      * @throws IOException On error reading from the stream
      * @since 1.11
      */
     public String digestAsHex(final Path data, final OpenOption... options) throws IOException {
         return Hex.encodeHexString(digest(data, options));
     }
 
     /**
      * Reads through a byte array and returns the digest for the data.
      *
      * @param data Data to digest treated as UTF-8 string
      * @return the digest as a hexadecimal string
      * @since 1.11
      */
     public String digestAsHex(final String data) {
         return Hex.encodeHexString(digest(data));
     }
 
     /**
      * Returns the message digest instance.
      *
      * @return the message digest instance
      * @since 1.11
      */
     public MessageDigest getMessageDigest() {
         return messageDigest;
     }
 
 }