content: /*
   * Copyright (c) 2017. André Mion
   *
   * Licensed 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
   *
   *     http://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 com.andremion.heroes.api.auth;
  
  import java.security.MessageDigest;
  import java.security.NoSuchAlgorithmException;
  
  public class HashHelper {
  
      public static String generate(String s) {
          try {
              MessageDigest messageDigest = MessageDigest.getInstance("MD5");
              byte[] digest = messageDigest.digest(s.getBytes());
              StringBuilder md5 = new StringBuilder();
              for (byte value : digest) {
                  md5.append(Integer.toHexString((value & 0xFF) | 0x100).substring(1, 3));
              }
              return md5.toString();
          } catch (NoSuchAlgorithmException e) {
              return null;
          }
      }
  }
  