86 lines
2.7 KiB
Java
86 lines
2.7 KiB
Java
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/*
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* Copyright (c) 2003, 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package java.security.spec;
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/**
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* This immutable class specifies an elliptic curve public key with
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* its associated parameters.
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*
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* @see KeySpec
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* @see ECPoint
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* @see ECParameterSpec
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*
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* @author Valerie Peng
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*
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* @since 1.5
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*/
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public class ECPublicKeySpec implements KeySpec {
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private ECPoint w;
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private ECParameterSpec params;
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/**
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* Creates a new ECPublicKeySpec with the specified
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* parameter values.
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* @param w the public point.
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* @param params the associated elliptic curve domain
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* parameters.
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* @throws NullPointerException if {@code w}
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* or {@code params} is null.
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* @throws IllegalArgumentException if {@code w}
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* is point at infinity, i.e. ECPoint.POINT_INFINITY
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*/
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public ECPublicKeySpec(ECPoint w, ECParameterSpec params) {
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if (w == null) {
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throw new NullPointerException("w is null");
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}
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if (params == null) {
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throw new NullPointerException("params is null");
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}
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if (w == ECPoint.POINT_INFINITY) {
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throw new IllegalArgumentException("w is ECPoint.POINT_INFINITY");
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}
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this.w = w;
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this.params = params;
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}
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/**
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* Returns the public point W.
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* @return the public point W.
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*/
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public ECPoint getW() {
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return w;
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}
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/**
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* Returns the associated elliptic curve domain
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* parameters.
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* @return the EC domain parameters.
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*/
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public ECParameterSpec getParams() {
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return params;
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}
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}
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