mirror of git://gcc.gnu.org/git/gcc.git
369 lines
12 KiB
Java
369 lines
12 KiB
Java
/* GnuPrivateKeyring.java --
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Copyright (C) 2003, 2006 Free Software Foundation, Inc.
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This file is a part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at
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your option) any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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USA
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.javax.crypto.keyring;
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import gnu.java.security.Configuration;
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import gnu.java.security.Registry;
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import java.io.DataInputStream;
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import java.io.DataOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.security.Key;
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import java.security.PublicKey;
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import java.security.UnrecoverableKeyException;
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import java.security.cert.Certificate;
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import java.util.Date;
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import java.util.Iterator;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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/**
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*
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*/
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public class GnuPrivateKeyring
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extends BaseKeyring
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implements IPrivateKeyring
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{
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private static final Logger log = Logger.getLogger(GnuPrivateKeyring.class.getName());
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public static final int USAGE = Registry.GKR_PRIVATE_KEYS
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| Registry.GKR_PUBLIC_CREDENTIALS;
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protected String mac;
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protected int maclen;
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protected String cipher;
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protected String mode;
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protected int keylen;
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public GnuPrivateKeyring(String mac, int maclen, String cipher, String mode,
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int keylen)
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{
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keyring = new PasswordAuthenticatedEntry(mac, maclen, new Properties());
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keyring2 = new CompressedEntry(new Properties());
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keyring.add(keyring2);
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this.mac = mac;
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this.maclen = maclen;
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this.cipher = cipher;
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this.mode = mode;
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this.keylen = keylen;
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}
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public GnuPrivateKeyring()
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{
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this("HMAC-SHA-1", 20, "AES", "OFB", 16);
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}
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public boolean containsPrivateKey(String alias)
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{
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if (Configuration.DEBUG)
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log.entering(this.getClass().getName(), "containsPrivateKey", alias);
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boolean result = false;
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if (containsAlias(alias))
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for (Iterator it = get(alias).iterator(); it.hasNext();)
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if (it.next() instanceof PasswordAuthenticatedEntry)
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{
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result = true;
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break;
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}
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if (Configuration.DEBUG)
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log.exiting(this.getClass().getName(), "containsPrivateKey",
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Boolean.valueOf(result));
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return result;
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}
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public Key getPrivateKey(String alias, char[] password)
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throws UnrecoverableKeyException
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{
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if (Configuration.DEBUG)
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log.entering(this.getClass().getName(), "getPrivateKey", alias);
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Key result = null;
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if (containsAlias(alias))
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{
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PasswordAuthenticatedEntry e1 = null;
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for (Iterator it = get(alias).iterator(); it.hasNext();)
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{
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Entry e = (Entry) it.next();
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if (Configuration.DEBUG)
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log.finest("Entry: " + e);
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if (e instanceof PasswordAuthenticatedEntry)
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{
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e1 = (PasswordAuthenticatedEntry) e;
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break;
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}
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}
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if (Configuration.DEBUG)
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log.fine("e1 = " + e1);
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if (e1 != null)
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{
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try
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{
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e1.verify(password);
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}
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catch (Exception e)
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{
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if (Configuration.DEBUG)
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log.throwing(this.getClass().getName(), "getPrivateKey", e);
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throw new UnrecoverableKeyException("authentication failed");
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}
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PasswordEncryptedEntry e2 = null;
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for (Iterator it = e1.getEntries().iterator(); it.hasNext();)
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{
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Entry e = (Entry) it.next();
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if (e instanceof PasswordEncryptedEntry)
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{
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e2 = (PasswordEncryptedEntry) e;
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break;
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}
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}
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if (e2 != null)
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{
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try
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{
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e2.decrypt(password);
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}
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catch (Exception e)
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{
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log.throwing(this.getClass().getName(), "getPrivateKey", e);
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throw new UnrecoverableKeyException("decryption failed");
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}
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for (Iterator it = e2.get(alias).iterator(); it.hasNext();)
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{
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Entry e = (Entry) it.next();
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if (e instanceof PrivateKeyEntry)
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{
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result = ((PrivateKeyEntry) e).getKey();
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break;
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}
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}
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}
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}
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}
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if (Configuration.DEBUG)
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log.exiting(this.getClass().getName(), "getPrivateKey",
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result == null ? "null" : result.getClass().getName());
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return result;
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}
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public void putPrivateKey(String alias, Key key, char[] password)
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{
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if (Configuration.DEBUG)
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log.entering(this.getClass().getName(), "putPrivateKey",
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new Object[] { alias, key.getClass().getName() });
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if (! containsPrivateKey(alias))
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{
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alias = fixAlias(alias);
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Properties p = new Properties();
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p.put("alias", alias);
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PrivateKeyEntry pke = new PrivateKeyEntry(key, new Date(), p);
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if (Configuration.DEBUG)
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log.fine("About to encrypt the key...");
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PasswordEncryptedEntry enc;
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enc = new PasswordEncryptedEntry(cipher, mode, keylen, new Properties());
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enc.add(pke);
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try
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{
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enc.encode(null, password);
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}
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catch (IOException x)
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{
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if (Configuration.DEBUG)
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log.log(Level.FINE, "Exception while encrypting the key. "
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+ "Rethrow as IllegalArgumentException", x);
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throw new IllegalArgumentException(x.toString());
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}
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if (Configuration.DEBUG)
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log.fine("About to authenticate the encrypted key...");
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PasswordAuthenticatedEntry auth;
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auth = new PasswordAuthenticatedEntry(mac, maclen, new Properties());
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auth.add(enc);
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try
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{
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auth.encode(null, password);
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}
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catch (IOException x)
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{
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if (Configuration.DEBUG)
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log.log(Level.FINE, "Exception while authenticating the encrypted "
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+ "key. Rethrow as IllegalArgumentException", x);
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throw new IllegalArgumentException(x.toString());
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}
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keyring.add(auth);
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}
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else if (Configuration.DEBUG)
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log.fine("Keyring already contains alias: " + alias);
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if (Configuration.DEBUG)
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log.exiting(this.getClass().getName(), "putPrivateKey");
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}
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public boolean containsPublicKey(String alias)
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{
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if (Configuration.DEBUG)
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log.entering(this.getClass().getName(), "containsPublicKey", alias);
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boolean result = false;
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if (containsAlias(alias))
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for (Iterator it = get(alias).iterator(); it.hasNext();)
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if (it.next() instanceof PublicKeyEntry)
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{
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result = true;
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break;
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}
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if (Configuration.DEBUG)
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log.exiting(this.getClass().getName(), "containsPublicKey",
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Boolean.valueOf(result));
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return result;
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}
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public PublicKey getPublicKey(String alias)
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{
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if (Configuration.DEBUG)
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log.entering(this.getClass().getName(), "getPublicKey", alias);
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PublicKey result = null;
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if (containsAlias(alias))
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for (Iterator it = get(alias).iterator(); it.hasNext();)
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{
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Entry e = (Entry) it.next();
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if (e instanceof PublicKeyEntry)
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{
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result = ((PublicKeyEntry) e).getKey();
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break;
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}
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}
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if (Configuration.DEBUG)
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log.exiting(this.getClass().getName(), "getPublicKey",
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result == null ? "null" : result.getClass().getName());
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return result;
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}
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public void putPublicKey(String alias, PublicKey key)
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{
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if (Configuration.DEBUG)
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log.entering(this.getClass().getName(), "putPublicKey",
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new Object[] { alias, key.getClass().getName() });
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if (! containsPublicKey(alias))
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{
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Properties p = new Properties();
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p.put("alias", fixAlias(alias));
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add(new PublicKeyEntry(key, new Date(), p));
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}
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else if (Configuration.DEBUG)
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log.fine("Keyring already contains alias: " + alias);
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if (Configuration.DEBUG)
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log.exiting(this.getClass().getName(), "putPublicKey");
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}
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public boolean containsCertPath(String alias)
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{
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if (Configuration.DEBUG)
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log.entering(this.getClass().getName(), "containsCertPath", alias);
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boolean result = false;
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if (containsAlias(alias))
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for (Iterator it = get(alias).iterator(); it.hasNext();)
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if (it.next() instanceof CertPathEntry)
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{
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result = true;
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break;
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}
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if (Configuration.DEBUG)
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log.exiting(this.getClass().getName(), "containsCertPath",
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Boolean.valueOf(result));
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return result;
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}
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public Certificate[] getCertPath(String alias)
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{
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if (Configuration.DEBUG)
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log.entering(this.getClass().getName(), "getCertPath", alias);
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Certificate[] result = null;
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if (containsAlias(alias))
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for (Iterator it = get(alias).iterator(); it.hasNext();)
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{
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Entry e = (Entry) it.next();
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if (e instanceof CertPathEntry)
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{
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result = ((CertPathEntry) e).getCertPath();
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break;
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}
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}
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if (Configuration.DEBUG)
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log.exiting(this.getClass().getName(), "getCertPath", result);
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return result;
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}
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public void putCertPath(String alias, Certificate[] path)
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{
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if (Configuration.DEBUG)
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log.entering(this.getClass().getName(), "putCertPath",
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new Object[] { alias, path });
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if (! containsCertPath(alias))
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{
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Properties p = new Properties();
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p.put("alias", fixAlias(alias));
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add(new CertPathEntry(path, new Date(), p));
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}
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else if (Configuration.DEBUG)
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log.fine("Keyring already contains alias: " + alias);
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if (Configuration.DEBUG)
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log.exiting(this.getClass().getName(), "putCertPath");
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}
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protected void load(InputStream in, char[] password) throws IOException
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{
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if (Configuration.DEBUG)
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log.entering(this.getClass().getName(), "load");
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if (in.read() != USAGE)
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throw new MalformedKeyringException("incompatible keyring usage");
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if (in.read() != PasswordAuthenticatedEntry.TYPE)
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throw new MalformedKeyringException(
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"expecting password-authenticated entry tag");
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keyring = PasswordAuthenticatedEntry.decode(new DataInputStream(in), password);
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if (Configuration.DEBUG)
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log.exiting(this.getClass().getName(), "load");
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}
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protected void store(OutputStream out, char[] password) throws IOException
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{
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if (Configuration.DEBUG)
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log.entering(this.getClass().getName(), "store");
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out.write(USAGE);
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keyring.encode(new DataOutputStream(out), password);
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if (Configuration.DEBUG)
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log.exiting(this.getClass().getName(), "store");
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}
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}
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