| /* |
| * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.security.provider; |
| |
| import java.math.BigInteger; |
| import java.security.KeyRep; |
| import java.security.InvalidKeyException; |
| |
| /** |
| * An X.509 public key for the Digital Signature Algorithm. |
| * |
| * The difference between DSAPublicKeyImpl and DSAPublicKey is that |
| * DSAPublicKeyImpl calls writeReplace with KeyRep, and DSAPublicKey |
| * calls writeObject. |
| * |
| * See the comments in DSAKeyFactory, 4532506, and 6232513. |
| * |
| */ |
| |
| public final class DSAPublicKeyImpl extends DSAPublicKey { |
| |
| private static final long serialVersionUID = 7819830118247182730L; |
| |
| /** |
| * Make a DSA public key out of a public key and three parameters. |
| * The p, q, and g parameters may be null, but if so, parameters will need |
| * to be supplied from some other source before this key can be used in |
| * cryptographic operations. PKIX RFC2459bis explicitly allows DSA public |
| * keys without parameters, where the parameters are provided in the |
| * issuer's DSA public key. |
| * |
| * @param y the actual key bits |
| * @param p DSA parameter p, may be null if all of p, q, and g are null. |
| * @param q DSA parameter q, may be null if all of p, q, and g are null. |
| * @param g DSA parameter g, may be null if all of p, q, and g are null. |
| */ |
| public DSAPublicKeyImpl(BigInteger y, BigInteger p, BigInteger q, |
| BigInteger g) |
| throws InvalidKeyException { |
| super(y, p, q, g); |
| } |
| |
| /** |
| * Make a DSA public key from its DER encoding (X.509). |
| */ |
| public DSAPublicKeyImpl(byte[] encoded) throws InvalidKeyException { |
| super(encoded); |
| } |
| |
| protected Object writeReplace() throws java.io.ObjectStreamException { |
| return new KeyRep(KeyRep.Type.PUBLIC, |
| getAlgorithm(), |
| getFormat(), |
| getEncoded()); |
| } |
| } |