| /* |
| * 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 javax.crypto.spec; |
| |
| import libcore.util.EmptyArray; |
| |
| /** |
| * The source of the label <code>L</code> as specified in <a |
| * href="http://www.ietf.org/rfc/rfc3447.txt"> PKCS #1</a>. |
| */ |
| public class PSource { |
| |
| private String pSrcName; |
| |
| private PSource() {} |
| |
| /** |
| * Creates a new <code>PSource</code> instance with the specified source |
| * algorithm identifier. |
| * |
| * @param pSrcName |
| * the source algorithm identifier. |
| * @throws NullPointerException |
| * if pSrcName is null. |
| */ |
| protected PSource(String pSrcName) { |
| if (pSrcName == null) { |
| throw new NullPointerException("pSrcName == null"); |
| } |
| this.pSrcName = pSrcName; |
| } |
| |
| /** |
| * Returns the source algorithm identifier. |
| * |
| * @return the source algorithm identifier. |
| */ |
| public String getAlgorithm() { |
| return pSrcName; |
| } |
| |
| /** |
| * The explicit specification of the parameter <code>P</code> used in the |
| * source algorithm. |
| */ |
| public static final class PSpecified extends PSource { |
| |
| private final byte[] p; |
| |
| /** |
| * The instance of <code>PSpecified</code> with the default value |
| * <code>byte[0]</code> for <code>P</code> |
| */ |
| public static final PSpecified DEFAULT = new PSpecified(); |
| |
| private PSpecified() { |
| super("PSpecified"); |
| p = EmptyArray.BYTE; |
| } |
| |
| /** |
| * Creates a new instance of <code>PSpecified</code> with the specified |
| * parameter <code>P</code>. |
| * |
| * @param p |
| * the parameter <code>P</code>. |
| * @throws NullPointerException |
| * if <code>p</code> is null. |
| */ |
| public PSpecified(byte[] p) { |
| super("PSpecified"); |
| if (p == null) { |
| throw new NullPointerException("p == null"); |
| } |
| //TODO: It is unknown which name should be used! |
| //super(""); |
| this.p = new byte[p.length]; |
| System.arraycopy(p, 0, this.p, 0, p.length); |
| } |
| |
| /** |
| * Returns a copy of the value of the parameter <code>P</code>. |
| * |
| * @return a copy of the value of the parameter <code>P</code> |
| */ |
| public byte[] getValue() { |
| byte[] result = new byte[p.length]; |
| System.arraycopy(p, 0, result, 0, p.length); |
| return result; |
| } |
| } |
| } |