151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski/* 2ee2676da0c3ab3814991cc0146e311839b145861Sergio Giro * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. 351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * This code is free software; you can redistribute it and/or modify it 651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * under the terms of the GNU General Public License version 2 only, as 751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * published by the Free Software Foundation. Oracle designates this 851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * particular file as subject to the "Classpath" exception as provided 951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * by Oracle in the LICENSE file that accompanied this code. 1051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 1151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * This code is distributed in the hope that it will be useful, but WITHOUT 1251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * version 2 for more details (a copy is included in the LICENSE file that 1551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * accompanied this code). 1651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 1751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * You should have received a copy of the GNU General Public License version 1851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 2 along with this work; if not, write to the Free Software Foundation, 1951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 2151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * or visit www.oracle.com if you need additional information or have any 2351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * questions. 2451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 2551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 2651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskipackage javax.crypto.spec; 2751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 2851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski/** 2951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * This class specifies the source for encoding input P in OAEP Padding, 3051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * as defined in the 3151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * <a href="http://www.ietf.org/rfc/rfc3447.txt">PKCS #1</a> 3251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * standard. 3351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * <pre> 3451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * PKCS1PSourceAlgorithms ALGORITHM-IDENTIFIER ::= { 3551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * { OID id-pSpecified PARAMETERS OCTET STRING }, 3651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * ... -- Allows for future expansion -- 3751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * } 3851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * </pre> 3951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @author Valerie Peng 4051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 4151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @since 1.5 4251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 4351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebskipublic class PSource { 4451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 4551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private String pSrcName; 4651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 4751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 4851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Constructs a source of the encoding input P for OAEP 4951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * padding as defined in the PKCS #1 standard using the 5051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * specified PSource algorithm. 5151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @param pSrcName the algorithm for the source of the 5251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * encoding input P. 5351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @exception NullPointerException if <code>pSrcName</code> 5451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * is null. 5551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 5651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski protected PSource(String pSrcName) { 5751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski if (pSrcName == null) { 5851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski throw new NullPointerException("pSource algorithm is null"); 5951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 6051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski this.pSrcName = pSrcName; 6151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 6251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 6351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Returns the PSource algorithm name. 6451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 6551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @return the PSource algorithm name. 6651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 6751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public String getAlgorithm() { 6851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski return pSrcName; 6951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 7051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 7151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 7251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * This class is used to explicitly specify the value for 7351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * encoding input P in OAEP Padding. 7451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * 7551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @since 1.5 7651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 7751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public static final class PSpecified extends PSource { 7851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 7951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski private byte[] p = new byte[0]; 8051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 8151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 8251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * The encoding input P whose value equals byte[0]. 8351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 8451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public static final PSpecified DEFAULT = new PSpecified(new byte[0]); 8551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski 8651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 8751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Constructs the source explicitly with the specified 8851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * value <code>p</code> as the encoding input P. 8951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Note: 9051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @param p the value of the encoding input. The contents 9151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * of the array are copied to protect against subsequent 9251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * modification. 9351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @exception NullPointerException if <code>p</code> is null. 9451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 9551b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public PSpecified(byte[] p) { 9651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski super("PSpecified"); 97ee2676da0c3ab3814991cc0146e311839b145861Sergio Giro this.p = p.clone(); 9851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 9951b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski /** 10051b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * Returns the value of encoding input P. 10151b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * @return the value of encoding input P. A new array is 10251b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski * returned each time this method is called. 10351b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski */ 10451b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski public byte[] getValue() { 105ee2676da0c3ab3814991cc0146e311839b145861Sergio Giro return (p.length==0? p: p.clone()); 10651b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 10751b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski } 10851b1b6997fd3f980076b8081f7f1165ccc2a4008Piotr Jastrzebski} 109