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/*
* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
* 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.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
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 p}, {@code q}, and {@code g}
* (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 { }
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