| /* |
| * 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 |
| * |
| * 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 org.apache.any23.util; |
| |
| import java.nio.charset.StandardCharsets; |
| import java.security.MessageDigest; |
| import java.security.NoSuchAlgorithmException; |
| |
| /** |
| * General utility functions. |
| * |
| * @author Michele Mostarda (mostarda@fbk.eu) |
| * @author Davide Palmisano (palmisano@fbk.eu) |
| */ |
| public class MathUtils { |
| |
| private MathUtils(){} |
| |
| public static final String md5(String s) { |
| try { |
| MessageDigest md5 = MessageDigest.getInstance("MD5"); |
| md5.reset(); |
| md5.update(s.getBytes(StandardCharsets.UTF_8)); |
| byte[] digest = md5.digest(); |
| StringBuffer result = new StringBuffer(); |
| for (byte b : digest) { |
| result.append(Integer.toHexString(0xFF & b)); |
| } |
| return result.toString(); |
| } catch (NoSuchAlgorithmException e) { |
| throw new RuntimeException("Should never happen, MD5 is supported", e); |
| } |
| } |
| |
| } |