| /* ==================================================================== |
| 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.poi.poifs.crypt; |
| |
| public enum ChainingMode { |
| // ecb - only for standard encryption |
| ecb("ECB", 1, null), |
| cbc("CBC", 2, "ChainingModeCBC"), |
| /* Cipher feedback chaining (CFB), with an 8-bit window */ |
| cfb("CFB8", 3, "ChainingModeCFB"); |
| |
| public final String jceId; |
| public final int ecmaId; |
| public final String xmlId; |
| |
| ChainingMode(String jceId, int ecmaId, String xmlId) { |
| this.jceId = jceId; |
| this.ecmaId = ecmaId; |
| this.xmlId = xmlId; |
| } |
| |
| public static ChainingMode fromXmlId(String xmlId) { |
| for (ChainingMode cm : values()) { |
| if (cm.xmlId != null && cm.xmlId.equals(xmlId)) { |
| return cm; |
| } |
| } |
| return null; |
| } |
| } |