| /* |
| * 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 com.cloud.utils; |
| |
| import com.cloud.utils.crypt.CloudStackEncryptor; |
| import com.cloud.utils.exception.CloudRuntimeException; |
| import org.apache.commons.codec.binary.Base64; |
| import org.apache.logging.log4j.Logger; |
| import org.apache.logging.log4j.LogManager; |
| |
| import javax.crypto.Mac; |
| import javax.crypto.spec.SecretKeySpec; |
| import java.io.UnsupportedEncodingException; |
| import java.security.InvalidKeyException; |
| import java.security.NoSuchAlgorithmException; |
| |
| public class EncryptionUtil { |
| protected static Logger LOGGER = LogManager.getLogger(EncryptionUtil.class); |
| private static CloudStackEncryptor encryptor; |
| |
| private static void initialize(String key) { |
| encryptor = new CloudStackEncryptor(key, null, EncryptionUtil.class); |
| } |
| |
| public static String encodeData(String data, String key) { |
| if (encryptor == null) { |
| initialize(key); |
| } |
| return encryptor.encrypt(data); |
| } |
| |
| public static String decodeData(String encodedData, String key) { |
| if (encryptor == null) { |
| initialize(key); |
| } |
| return encryptor.decrypt(encodedData); |
| } |
| |
| public static String generateSignature(String data, String key) { |
| try { |
| final Mac mac = Mac.getInstance("HmacSHA1"); |
| final SecretKeySpec keySpec = new SecretKeySpec(key.getBytes("UTF-8"), "HmacSHA1"); |
| mac.init(keySpec); |
| mac.update(data.getBytes("UTF-8")); |
| final byte[] encryptedBytes = mac.doFinal(); |
| return Base64.encodeBase64String(encryptedBytes); |
| } catch (NoSuchAlgorithmException | InvalidKeyException | UnsupportedEncodingException e) { |
| LOGGER.error("exception occurred which encoding the data." + e.getMessage()); |
| throw new CloudRuntimeException("unable to generate signature", e); |
| } |
| } |
| } |