src/java.base/share/classes/sun/security/ec/point/Point.java - master - githubmirror/jdk22

src/java.base/share/classes/sun/security/ec/point/Point.java

46 строк2 KB

Anthony Scarpino

8308398: Move SunEC crypto provider into java.base

17 июл 2023, 20:38

17 июл 2023, 20:38e737968

/*
 * Copyright (c) 2018, 2020, 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.ec.point;

import sun.security.util.math.IntegerFieldModuloP;

/**
 * A base interface for points on an elliptic curve over a finite field.
 * Implementations may use different representations for points, and this
 * interface creates a common API for manipulating points. This API has no
 * methods for point arithmetic, which depends on group structure and curve
 * parameters in addition to point representation.
 */
public interface Point {

    IntegerFieldModuloP getField();
    AffinePoint asAffine();
    boolean affineEquals(Point p);

    ImmutablePoint fixed();
    MutablePoint mutable();

}