| /* PrivateKeyEntry.java -- |
| Copyright (C) 2003, 2006 Free Software Foundation, Inc. |
| |
| This file is a part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or (at |
| your option) any later version. |
| |
| GNU Classpath 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 for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 |
| USA |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package gnu.javax.crypto.keyring; |
| |
| import gnu.java.security.key.IKeyPairCodec; |
| import gnu.java.security.key.KeyPairCodecFactory; |
| import gnu.java.security.key.dss.DSSPrivateKey; |
| import gnu.java.security.key.rsa.GnuRSAPrivateKey; |
| import gnu.javax.crypto.key.GnuSecretKey; |
| import gnu.javax.crypto.key.dh.GnuDHPrivateKey; |
| |
| import java.io.DataInputStream; |
| import java.io.IOException; |
| import java.security.Key; |
| import java.security.KeyFactory; |
| import java.security.PrivateKey; |
| import java.security.spec.PKCS8EncodedKeySpec; |
| import java.util.Date; |
| |
| /** |
| * An immutable class representing a private or secret key entry. |
| */ |
| public final class PrivateKeyEntry |
| extends PrimitiveEntry |
| { |
| public static final int TYPE = 7; |
| /** The key. */ |
| private Key key; |
| |
| /** |
| * Creates a new key entry. |
| * |
| * @param key The key. |
| * @param creationDate The entry creation date. |
| * @param properties The entry properties. |
| * @throws IllegalArgumentException If any parameter is null. |
| */ |
| public PrivateKeyEntry(Key key, Date creationDate, Properties properties) |
| { |
| super(TYPE, creationDate, properties); |
| if (key == null) |
| throw new IllegalArgumentException("no private key"); |
| if (! (key instanceof PrivateKey) && ! (key instanceof GnuSecretKey)) |
| throw new IllegalArgumentException("not a private or secret key"); |
| this.key = key; |
| } |
| |
| private PrivateKeyEntry() |
| { |
| super(TYPE); |
| } |
| |
| public static PrivateKeyEntry decode(DataInputStream in) throws IOException |
| { |
| PrivateKeyEntry entry = new PrivateKeyEntry(); |
| entry.defaultDecode(in); |
| String type = entry.properties.get("type"); |
| if (type == null) |
| throw new MalformedKeyringException("no key type"); |
| if (type.equalsIgnoreCase("RAW-DSS")) |
| { |
| IKeyPairCodec coder = KeyPairCodecFactory.getInstance("dss"); |
| entry.key = coder.decodePrivateKey(entry.payload); |
| } |
| else if (type.equalsIgnoreCase("RAW-RSA")) |
| { |
| IKeyPairCodec coder = KeyPairCodecFactory.getInstance("rsa"); |
| entry.key = coder.decodePrivateKey(entry.payload); |
| } |
| else if (type.equalsIgnoreCase("RAW-DH")) |
| { |
| IKeyPairCodec coder = KeyPairCodecFactory.getInstance("dh"); |
| entry.key = coder.decodePrivateKey(entry.payload); |
| } |
| else if (type.equalsIgnoreCase("RAW")) |
| entry.key = new GnuSecretKey(entry.payload, null); |
| else if (type.equalsIgnoreCase("PKCS8")) |
| { |
| try |
| { |
| KeyFactory kf = KeyFactory.getInstance("RSA"); |
| PKCS8EncodedKeySpec ks = new PKCS8EncodedKeySpec(entry.payload); |
| entry.key = kf.generatePrivate(ks); |
| } |
| catch (Exception ignored) |
| { |
| } |
| if (entry.key == null) |
| { |
| try |
| { |
| KeyFactory kf = KeyFactory.getInstance("DSA"); |
| PKCS8EncodedKeySpec ks = new PKCS8EncodedKeySpec(entry.payload); |
| entry.key = kf.generatePrivate(ks); |
| } |
| catch (Exception ignored) |
| { |
| } |
| if (entry.key == null) |
| throw new MalformedKeyringException("could not decode PKCS#8 key"); |
| } |
| } |
| else |
| throw new MalformedKeyringException("unsupported key type " + type); |
| return entry; |
| } |
| |
| /** |
| * Returns this entry's key. |
| * |
| * @return The key. |
| */ |
| public Key getKey() |
| { |
| return key; |
| } |
| |
| protected void encodePayload() throws IOException |
| { |
| String format = key.getFormat(); |
| if (key instanceof DSSPrivateKey) |
| { |
| properties.put("type", "RAW-DSS"); |
| IKeyPairCodec coder = KeyPairCodecFactory.getInstance("dss"); |
| payload = coder.encodePrivateKey((PrivateKey) key); |
| } |
| else if (key instanceof GnuRSAPrivateKey) |
| { |
| properties.put("type", "RAW-RSA"); |
| IKeyPairCodec coder = KeyPairCodecFactory.getInstance("rsa"); |
| payload = coder.encodePrivateKey((PrivateKey) key); |
| } |
| else if (key instanceof GnuDHPrivateKey) |
| { |
| properties.put("type", "RAW-DH"); |
| IKeyPairCodec coder = KeyPairCodecFactory.getInstance("dh"); |
| payload = coder.encodePrivateKey((PrivateKey) key); |
| } |
| else if (key instanceof GnuSecretKey) |
| { |
| properties.put("type", "RAW"); |
| payload = key.getEncoded(); |
| } |
| else if (format != null && format.equals("PKCS#8")) |
| { |
| properties.put("type", "PKCS8"); |
| payload = key.getEncoded(); |
| } |
| else |
| throw new IllegalArgumentException("unsupported private key"); |
| } |
| |
| public String toString() |
| { |
| return "PrivateKeyEntry{key=" |
| + (key == null ? "-" : key.getClass().getName()) + "}"; |
| } |
| } |