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/* DESedeSecretKeyFactoryImpl.java -- DESede key factory.
   Copyright (C) 2004 Free Software Foundation, Inc.

This file is part of GNU Crypto.

GNU Crypto 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 Crypto is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; see the file COPYING.  If not, write to the

   Free Software Foundation Inc.,
   51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301

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

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.crypto.jce.key;

import java.security.InvalidKeyException;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.KeySpec;

import javax.crypto.SecretKey;
import javax.crypto.spec.DESedeKeySpec;
import javax.crypto.spec.SecretKeySpec;

00052 public class DESedeSecretKeyFactoryImpl extends SecretKeyFactoryImpl

  public DESedeSecretKeyFactoryImpl()

  protected SecretKey engineGenerateSecret (KeySpec spec)
    throws InvalidKeySpecException
    if (spec instanceof DESedeKeySpec)
      return new SecretKeySpec (((DESedeKeySpec) spec).getKey(), "DESede");
    return super.engineGenerateSecret (spec);

  protected KeySpec engineGetKeySpec (SecretKey key, Class spec)
    throws InvalidKeySpecException
    if (spec.equals (DESedeKeySpec.class))
          return new DESedeKeySpec (key.getEncoded());
      catch (InvalidKeyException ike)
          InvalidKeySpecException ikse = new InvalidKeySpecException
            ("can't create DESede key spec");
          ikse.initCause (ike);
          throw ikse;
    return super.engineGetKeySpec (key, spec);

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