1. /*

  2.  * @(#)EncodedKeySpec.java	1.20 03/12/19

  3.  *

  4.  * Copyright 2004 Sun Microsystems, Inc. All rights reserved.

  5.  * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.

  6.  */

  7. 

  8. package java.security.spec;

  9. 

  10. /**

  11.  * This class represents a public or private key in encoded format.

  12.  *

  13.  * @author Jan Luehe

  14.  *

  15.  * @version 1.20, 12/19/03

  16.  *

  17.  * @see java.security.Key

  18.  * @see java.security.KeyFactory

  19.  * @see KeySpec

  20.  * @see X509EncodedKeySpec

  21.  * @see PKCS8EncodedKeySpec

  22.  *

  23.  * @since 1.2

  24.  */

  25. 

  26. public abstract class EncodedKeySpec implements KeySpec {

  27. 

  28.     private byte[] encodedKey;

  29. 

  30.     /**

  31.      * Creates a new EncodedKeySpec with the given encoded key.

  32.      *

  33.      * @param encodedKey the encoded key. The contents of the 

  34.      * array are copied to protect against subsequent modification.

  35.      */

  36.     public EncodedKeySpec(byte[] encodedKey) {

  37. 	this.encodedKey = (byte[])encodedKey.clone();

  38.     }

  39. 

  40.     /**

  41.      * Returns the encoded key.

  42.      *

  43.      * @return the encoded key. Returns a new array each time

  44.      * this method is called.

  45.      */

  46.     public byte[] getEncoded() {

  47. 	return (byte[])this.encodedKey.clone();

  48.     }

  49. 

  50.     /**

  51.      * Returns the name of the encoding format associated with this

  52.      * key specification.

  53.      *

  54.      * <p>If the opaque representation of a key

  55.      * (see {@link java.security.Key Key}) can be transformed

  56.      * (see {@link java.security.KeyFactory KeyFactory})

  57.      * into this key specification (or a subclass of it),

  58.      * <code>getFormat</code> called

  59.      * on the opaque key returns the same value as the

  60.      * <code>getFormat</code> method

  61.      * of this key specification.

  62.      *

  63.      * @return a string representation of the encoding format.

  64.      */

  65.     public abstract String getFormat();

  66. }