/*

 * Copyright (c) 2012, 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 sun.security.util;

import java.security.spec.AlgorithmParameterSpec;

import sun.security.util.ObjectIdentifier;

/**

 * This immutable class is used when randomly generating a key pair and the

 * consumer only specifies the length of the key and therefore a curve for that

 * key size must be picked from a the list of supported curves using this spec.

 *

 * @see AlgorithmParameterSpec

 * @see ECGenParameterSpec

 */

public class ECKeySizeParameterSpec implements AlgorithmParameterSpec {

    private int keySize;

    /**

     * Creates a parameter specification for EC curve

     * generation using a standard (or predefined) key size

     * <code>keySize</code> in order to generate the corresponding

     * (precomputed) elliptic curve.

     * <p>

     * Note, if the curve of the specified length is not supported,

     * <code>AlgorithmParameters.init</code> will throw an exception.

     *

     * @param keySize the key size of the curve to lookup

     */

    public ECKeySizeParameterSpec(int keySize) {

        this.keySize = keySize;

    }

    /**

     * Returns the key size of this spec.

     *

     * @return the standard or predefined key size.

     */

    public int getKeySize() {

        return keySize;

    }

}