| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package java.security.spec; |
| |
| /** |
| * The parameters specifying an Elliptic Curve (EC) public key. |
| */ |
| public class ECPublicKeySpec implements KeySpec { |
| // The public point |
| private final ECPoint w; |
| // The associated elliptic curve domain parameters |
| private final ECParameterSpec params; |
| |
| /** |
| * Creates a new {@code ECPublicKey} with the specified public elliptic |
| * curve point and parameter specification. |
| * |
| * @param w |
| * the public elliptic curve point {@code W}. |
| * @param params |
| * the domain parameter specification. |
| * @throws IllegalArgumentException |
| * if the specified point {@code W} is at infinity. |
| */ |
| public ECPublicKeySpec(ECPoint w, ECParameterSpec params) { |
| this.w = w; |
| this.params = params; |
| // throw NullPointerException if w or params is null |
| if (this.w == null) { |
| throw new NullPointerException("w == null"); |
| } |
| if (this.params == null) { |
| throw new NullPointerException("params == null"); |
| } |
| // throw IllegalArgumentException if w is point at infinity |
| if (this.w.equals(ECPoint.POINT_INFINITY)) { |
| throw new IllegalArgumentException("the w parameter is point at infinity"); |
| } |
| } |
| |
| /** |
| * Returns the domain parameter specification. |
| * |
| * @return the domain parameter specification. |
| */ |
| public ECParameterSpec getParams() { |
| return params; |
| } |
| |
| /** |
| * Returns the public elliptic curve point {@code W}. |
| * |
| * @return the public elliptic curve point {@code W}. |
| */ |
| public ECPoint getW() { |
| return w; |
| } |
| } |