| /* |
| * Copyright (c) 2018, 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.ImmutableIntegerModuloP; |
| |
| import java.util.Objects; |
| |
| /** |
| * Elliptic curve point represented using affine coordinates (x, y). This class |
| * is not part of the sun.security.ec.point.Point hierarchy because it is not |
| * used to hold intermediate values during point arithmetic, and so it does not |
| * have a mutable form. |
| */ |
| public class AffinePoint { |
| |
| private final ImmutableIntegerModuloP x; |
| private final ImmutableIntegerModuloP y; |
| |
| public AffinePoint(ImmutableIntegerModuloP x, ImmutableIntegerModuloP y) { |
| this.x = x; |
| this.y = y; |
| } |
| |
| public ImmutableIntegerModuloP getX() { |
| return x; |
| } |
| |
| public ImmutableIntegerModuloP getY() { |
| return y; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (!(obj instanceof AffinePoint)) { |
| return false; |
| } |
| AffinePoint p = (AffinePoint) obj; |
| boolean xEquals = x.asBigInteger().equals(p.x.asBigInteger()); |
| boolean yEquals = y.asBigInteger().equals(p.y.asBigInteger()); |
| return xEquals && yEquals; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(x, y); |
| } |
| |
| @Override |
| public String toString() { |
| return "(" + x.asBigInteger().toString() + "," + |
| y.asBigInteger().toString() + ")"; |
| } |
| } |