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-/* SecretKeyFactorySpi.java -- Secret key factory service provider interface.
- Copyright (C) 2004 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 javax.crypto;
-
-import java.security.InvalidKeyException;
-import java.security.spec.InvalidKeySpecException;
-import java.security.spec.KeySpec;
-
-/**
- * The <i>Service Provider Interface</i> (<b>SPI</b>) for the {@link
- * SecretKeyFactory} class.
- *
- * <p>Providers wishing to implement a secret key factory must
- * subclass this and provide an appropriate implementation for all the
- * abstract methods below, and provide an appropriate entry in the
- * master {@link java.security.Provider} class (the service name for
- * secret key factories is <code>"SecretKeyFactory"</code>).
- *
- * @author Casey Marshall (csm@gnu.org)
- * @since 1.4
- * @see SecretKeyFactory
- */
-public abstract class SecretKeyFactorySpi
-{
-
- // Constructor.
- // ------------------------------------------------------------------------
-
- /**
- * Create a new secret key factory SPI.
- */
- public SecretKeyFactorySpi()
- {
- }
-
- // Abstract instance methods.
- // ------------------------------------------------------------------------
-
- /**
- * Translate a {@link java.security.KeySpec} into a {@link SecretKey}.
- *
- * @param keySpec The key specification.
- * @return The secret key.
- * @throws java.security.spec.InvalidKeySpecException If the key specification
- * cannot be translated into a secret key.
- */
- protected abstract SecretKey engineGenerateSecret(KeySpec keySpec)
- throws InvalidKeySpecException;
-
- /**
- * Translate a {@link SecretKey} into a {@link java.security.KeySpec}.
- *
- * @param key The secret key.
- * @param keySpec The desired key specification class.
- * @return The key specification.
- * @throws java.security.spec.InvalidKeySpecException If the secret key cannot
- * be translated into the desired key specification.
- */
- protected abstract KeySpec engineGetKeySpec(SecretKey key, Class keySpec)
- throws InvalidKeySpecException;
-
- /**
- * Translate a secret key into a different representation.
- *
- * @param key The secret key to translate.
- * @return The translated key.
- * @throws java.security.InvalidKeyException If the specified secret
- * key cannot be translated.
- */
- protected abstract SecretKey engineTranslateKey(SecretKey key)
- throws InvalidKeyException;
-}