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   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
   * particular file as subject to the "Classpath" exception as provided
   * by Oracle in the LICENSE file that accompanied this code.
   *
   * This code 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
   * version 2 for more details (a copy is included in the LICENSE file that
   * accompanied this code).
   *
   * You should have received a copy of the GNU General Public License version
   * 2 along with this work; if not, write to the Free Software Foundation,
   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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  package java.security;
  
  /**
   * A private key.
   * The purpose of this interface is to group (and provide type safety
   * for) all private key interfaces.
   * <p>
   * Note: The specialized private key interfaces extend this interface.
   * See, for example, the {@code DSAPrivateKey} interface in
   * {@link java.security.interfaces}.
   * <p>
   * Implementations should override the default {@code destroy} and
   * {@code isDestroyed} methods from the
   * {@link javax.security.auth.Destroyable} interface to enable
   * sensitive key information to be destroyed, cleared, or in the case
   * where such information is immutable, unreferenced.
   * Finally, since {@code PrivateKey} is {@code Serializable}, implementations
   * should also override
   * {@link java.io.ObjectOutputStream#writeObject(Object)}
   * to prevent keys that have been destroyed from being serialized.
   *
   * @see Key
   * @see PublicKey
   * @see Certificate
   * @see Signature#initVerify
   * @see java.security.interfaces.DSAPrivateKey
   * @see java.security.interfaces.RSAPrivateKey
   * @see java.security.interfaces.RSAPrivateCrtKey
   *
   * @author Benjamin Renaud
   * @author Josh Bloch
   */
  
  public interface PrivateKey extends Key, javax.security.auth.Destroyable {
  
      // Declare serialVersionUID to be compatible with JDK1.1
      /**
       * The class fingerprint that is set to indicate serialization
       * compatibility with a previous version of the class.
       */
      static final long serialVersionUID = 6034044314589513430L;
  }
  