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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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.
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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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 * 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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package java.security.spec;

/**
 * A (transparent) specification of the key material
 * that constitutes a cryptographic key.
 *
 * <p>If the key is stored on a hardware device, its
 * specification may contain information that helps identify the key on the
 * device.
 *
 * <P> A key may be specified in an algorithm-specific way, or in an
 * algorithm-independent encoding format (such as ASN.1).
 * For example, a DSA private key may be specified by its components
 * <code>x</code>, <code>p</code>, <code>q</code>, and <code>g</code>
 * (see {@link DSAPrivateKeySpec}), or it may be
 * specified using its DER encoding
 * (see {@link PKCS8EncodedKeySpec}).
 *
 * <P> This interface contains no methods or constants. Its only purpose
 * is to group (and provide type safety for) all key specifications.
 * All key specifications must implement this interface.
 *
 * @author Jan Luehe
 *
 *
 * @see java.security.Key
 * @see java.security.KeyFactory
 * @see EncodedKeySpec
 * @see X509EncodedKeySpec
 * @see PKCS8EncodedKeySpec
 * @see DSAPrivateKeySpec
 * @see DSAPublicKeySpec
 *
 * @since 1.2
 */

public interface KeySpec { }
