1 /* 2 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.security.ec.point; 27 28 import sun.security.util.math.IntegerFieldModuloP; 29 30 /** 31 * A base interface for points on an elliptic curve over a finite field. 32 * Implementations may use different representations for points, and this 33 * interface creates a common API for manipulating points. This API has no 34 * methods for point arithmetic, which depends on group structure and curve 35 * parameters in addition to point representation. 36 */ 37 public interface Point { 38 getField()39 IntegerFieldModuloP getField(); asAffine()40 AffinePoint asAffine(); 41 fixed()42 ImmutablePoint fixed(); mutable()43 MutablePoint mutable(); 44 45 } 46