| /* |
| * 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.ftpserver.util; |
| |
| import java.security.MessageDigest; |
| import java.security.NoSuchAlgorithmException; |
| |
| /** |
| * <strong>Internal class, do not use directly.</strong> |
| * |
| * String encryption utility methods. |
| * |
| * @author <a href="http://mina.apache.org">Apache MINA Project</a> |
| */ |
| public class EncryptUtils { |
| |
| /** |
| * Encrypt byte array. |
| */ |
| public final static byte[] encrypt(byte[] source, String algorithm) |
| throws NoSuchAlgorithmException { |
| MessageDigest md = MessageDigest.getInstance(algorithm); |
| md.reset(); |
| md.update(source); |
| return md.digest(); |
| } |
| |
| /** |
| * Encrypt string |
| */ |
| public final static String encrypt(String source, String algorithm) |
| throws NoSuchAlgorithmException { |
| byte[] resByteArray = encrypt(source.getBytes(), algorithm); |
| return StringUtils.toHexString(resByteArray); |
| } |
| |
| /** |
| * Encrypt string using MD5 algorithm |
| */ |
| public final static String encryptMD5(String source) { |
| if (source == null) { |
| source = ""; |
| } |
| |
| String result = ""; |
| try { |
| result = encrypt(source, "MD5"); |
| } catch (NoSuchAlgorithmException ex) { |
| // this should never happen |
| throw new IllegalArgumentException(ex); |
| } |
| return result; |
| } |
| |
| /** |
| * Encrypt string using SHA algorithm |
| */ |
| public final static String encryptSHA(String source) { |
| if (source == null) { |
| source = ""; |
| } |
| |
| String result = ""; |
| try { |
| result = encrypt(source, "SHA"); |
| } catch (NoSuchAlgorithmException ex) { |
| // this should never happen |
| throw new IllegalArgumentException(ex); |
| } |
| return result; |
| } |
| |
| } |