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   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   * This code is free software; you can redistribute it and/or modify it
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   * published by the Free Software Foundation.  Oracle designates this
   * particular file as subject to the "Classpath" exception as provided
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   *
   * 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).
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   * You should have received a copy of the GNU General Public License version
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   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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   */
  
  package java.security.spec;
  
  /**
   * This class represents a public or private key in encoded format.
   *
   * @author Jan Luehe
   *
   *
   * @see java.security.Key
   * @see java.security.KeyFactory
   * @see KeySpec
   * @see X509EncodedKeySpec
   * @see PKCS8EncodedKeySpec
   *
   * @since 1.2
   */
  
  public abstract class EncodedKeySpec implements KeySpec {
  
      private byte[] encodedKey;
  
      /**
       * Creates a new EncodedKeySpec with the given encoded key.
       *
       * @param encodedKey the encoded key. The contents of the
       * array are copied to protect against subsequent modification.
       * @exception NullPointerException if {@code encodedKey}
       * is null.
       */
      public EncodedKeySpec(byte[] encodedKey) {
          this.encodedKey = encodedKey.clone();
      }
  
      /**
       * Returns the encoded key.
       *
       * @return the encoded key. Returns a new array each time
       * this method is called.
       */
      public byte[] getEncoded() {
          return this.encodedKey.clone();
      }
  
      /**
       * Returns the name of the encoding format associated with this
       * key specification.
       *
       * <p>If the opaque representation of a key
       * (see {@link java.security.Key Key}) can be transformed
       * (see {@link java.security.KeyFactory KeyFactory})
       * into this key specification (or a subclass of it),
       * {@code getFormat} called
       * on the opaque key returns the same value as the
       * {@code getFormat} method
       * of this key specification.
       *
       * @return a string representation of the encoding format.
       */
      public abstract String getFormat();
  }
  