1. /*

  2.  * @(#)KeySpec.java	1.14 00/02/02

  3.  *

  4.  * Copyright 1997-2000 Sun Microsystems, Inc. All Rights Reserved.

  5.  * 

  6.  * This software is the proprietary information of Sun Microsystems, Inc.  

  7.  * Use is subject to license terms.

  8.  * 

  9.  */

  10. 

  11. package java.security.spec;

  12. 

  13. /**

  14.  * A (transparent) specification of the key material

  15.  * that constitutes a cryptographic key.

  16.  *

  17.  * <p>If the key is stored on a hardware device, its

  18.  * specification may contain information that helps identify the key on the

  19.  * device.

  20.  *

  21.  * <P> A key may be specified in an algorithm-specific way, or in an

  22.  * algorithm-independent encoding format (such as ASN.1).

  23.  * For example, a DSA private key may be specified by its components

  24.  * <code>x</code>, <code>p</code>, <code>q</code>, and <code>g</code>

  25.  * (see {@link DSAPrivateKeySpec}), or it may be

  26.  * specified using its DER encoding

  27.  * (see {@link PKCS8EncodedKeySpec}).

  28.  *

  29.  * <P> This interface contains no methods or constants. Its only purpose

  30.  * is to group (and provide type safety for) all key specifications.

  31.  * All key specifications must implement this interface.

  32.  *

  33.  * @author Jan Luehe

  34.  *

  35.  * @version 1.14, 02/02/00

  36.  *

  37.  * @see java.security.Key

  38.  * @see java.security.KeyFactory

  39.  * @see EncodedKeySpec

  40.  * @see X509EncodedKeySpec

  41.  * @see PKCS8EncodedKeySpec

  42.  * @see DSAPrivateKeySpec

  43.  * @see DSAPublicKeySpec

  44.  *

  45.  * @since 1.2

  46.  */

  47. 

  48. public interface KeySpec { }