001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019package org.apache.commons.compress.archivers.zip; 020 021/** 022 * PKCS#7 Encryption Recipient Certificate List (0x0019). 023 * 024 * <p>This field MAY contain information about each of the certificates used in 025 * encryption processing and it can be used to identify who is allowed to 026 * decrypt encrypted files. This field should only appear in the archive extra 027 * data record. This field is not required and serves only to aid archive 028 * modifications by preserving public encryption key data. Individual security 029 * requirements may dictate that this data be omitted to deter information 030 * exposure.</p> 031 * 032 * <p>Note: all fields stored in Intel low-byte/high-byte order.</p> 033 * 034 * <pre> 035 * Value Size Description 036 * ----- ---- ----------- 037 * (CStore) 0x0019 2 bytes Tag for this "extra" block type 038 * TSize 2 bytes Size of the store data 039 * Version 2 bytes Format version number - must 0x0001 at this time 040 * CStore (var) PKCS#7 data blob 041 * </pre> 042 * 043 * <p><b>See the section describing the Strong Encryption Specification for 044 * details. Refer to the section in this document entitled 045 * "Incorporating PKWARE Proprietary Technology into Your Product" for more 046 * information.</b></p> 047 * 048 * @NotThreadSafe 049 * @since 1.11 050 */ 051public class X0019_EncryptionRecipientCertificateList extends PKWareExtraHeader { 052 053 public X0019_EncryptionRecipientCertificateList() { 054 super(new ZipShort(0x0019)); 055 } 056 057}