| /* KeyPairGeneratorAdapter.java -- |
| Copyright 2001, 2002, 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.java.security.jce.sig; |
| |
| import gnu.java.security.key.IKeyPairGenerator; |
| import gnu.java.security.key.KeyPairGeneratorFactory; |
| |
| import java.security.InvalidAlgorithmParameterException; |
| import java.security.KeyPair; |
| import java.security.KeyPairGenerator; |
| import java.security.SecureRandom; |
| import java.security.spec.AlgorithmParameterSpec; |
| |
| /** |
| * The implementation of a generic {@link java.security.KeyPairGenerator} |
| * adapter class to wrap GNU keypair generator instances. |
| * <p> |
| * This class defines the <i>Service Provider Interface</i> (<b>SPI</b>) for |
| * the {@link java.security.KeyPairGenerator} class, which is used to generate |
| * pairs of public and private keys. |
| * <p> |
| * All the abstract methods in the {@link java.security.KeyPairGeneratorSpi} |
| * class are implemented by this class and all its sub-classes. |
| * <p> |
| * In case the client does not explicitly initialize the KeyPairGenerator (via a |
| * call to an <code>initialize()</code> method), the GNU provider supplies |
| * (and document) default values to be used. For example, the GNU provider uses |
| * a default <i>modulus</i> size (keysize) of 1024 bits for the DSS (Digital |
| * Signature Standard) a.k.a <i>DSA</i>. |
| */ |
| public abstract class KeyPairGeneratorAdapter |
| extends KeyPairGenerator |
| { |
| /** Our underlying keypair instance. */ |
| protected IKeyPairGenerator adaptee; |
| |
| /** |
| * Trivial protected constructor. |
| * |
| * @param kpgName the canonical name of the keypair generator algorithm. |
| */ |
| protected KeyPairGeneratorAdapter(String kpgName) |
| { |
| super(kpgName); |
| |
| this.adaptee = KeyPairGeneratorFactory.getInstance(kpgName); |
| } |
| |
| public abstract void initialize(int keysize, SecureRandom random); |
| |
| public abstract void initialize(AlgorithmParameterSpec params, |
| SecureRandom random) |
| throws InvalidAlgorithmParameterException; |
| |
| public KeyPair generateKeyPair() |
| { |
| return adaptee.generate(); |
| } |
| } |