/*

 * Copyright (c) 2006, 2014, 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

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 */

package sun.security.util;

import java.io.IOException;

import java.math.BigInteger;

import java.security.spec.*;

/**

 * Contains Elliptic Curve parameters.

 *

 * @since   1.6

 * @author  Andreas Sterbenz

 */

public final class NamedCurve extends ECParameterSpec {

    // friendly name for toString() output

    private final String name;

    // well known OID

    private final String oid;

    // encoded form (as NamedCurve identified via OID)

    private final byte[] encoded;

    NamedCurve(String name, String oid, EllipticCurve curve,

            ECPoint g, BigInteger n, int h) {

        super(curve, g, n, h);

        this.name = name;

        this.oid = oid;

        DerOutputStream out = new DerOutputStream();

        try {

            out.putOID(new ObjectIdentifier(oid));

        } catch (IOException e) {

            throw new RuntimeException("Internal error", e);

        }

        encoded = out.toByteArray();

    }

    public String getName() {

        return name;

    }

    public byte[] getEncoded() {

        return encoded.clone();

    }

    public String getObjectId() {

        return oid;

    }

    public String toString() {

        return name + " (" + oid + ")";

    }

}