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+/* KeyPairGeneratorSpi.java --- Key Pair Generator SPI Class
+   Copyright (C) 1999, 2002 Free Software Foundation, Inc.
+
+This file is 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, 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; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, 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 java.security;
+import java.security.spec.AlgorithmParameterSpec;
+
+/**
+   KeyPairGeneratorSpi is the interface used to generate key pairs
+   for security algorithms.
+
+   @author Mark Benvenuto
+ */
+public abstract class KeyPairGeneratorSpi
+{
+  /**
+     Constructs a new KeyPairGeneratorSpi
+   */
+  public KeyPairGeneratorSpi()
+  {
+  }
+
+  /**
+     Initialize the KeyPairGeneratorSpi with the specified
+     key size and source of randomness
+
+     @param keysize size of the key to generate
+     @param random A SecureRandom source of randomness  
+   */
+  public abstract void initialize(int keysize, SecureRandom random);
+
+  /**
+     Initialize the KeyPairGeneratorSpi with the specified
+     AlgorithmParameterSpec and source of randomness
+
+     This is a concrete method. It may be overridden by the provider
+     and if the AlgorithmParameterSpec class is invalid
+     throw InvalidAlgorithmParameterException. By default this
+     method just throws UnsupportedOperationException.
+
+     @param params A AlgorithmParameterSpec to intialize with
+     @param random A SecureRandom source of randomness  
+
+     @throws InvalidAlgorithmParameterException
+   */
+  public void initialize(AlgorithmParameterSpec params, SecureRandom random)
+    throws InvalidAlgorithmParameterException
+  {
+    throw new java.lang.UnsupportedOperationException();
+  }
+
+  /**
+     Generates a KeyPair according the rules for the algorithm.
+     Unless intialized, algorithm defaults will be used. It 
+     creates a unique key pair each time.
+
+     @return a key pair
+   */
+  public abstract KeyPair generateKeyPair();
+
+  /**
+   * We override clone here to make it accessible for use by
+   * DummyKeyPairGenerator.
+   */
+  protected Object clone() throws CloneNotSupportedException
+  {
+    return super.clone();
+  }
+}