0N/A/*
2362N/A * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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0N/A */
0N/A
0N/Apackage sun.security.ec;
0N/A
0N/Aimport java.io.IOException;
0N/A
0N/Aimport java.security.*;
0N/Aimport java.security.interfaces.*;
0N/Aimport java.security.spec.*;
0N/A
0N/Aimport sun.security.util.*;
0N/Aimport sun.security.x509.*;
0N/A
0N/A/**
0N/A * Key implementation for EC public keys.
0N/A *
0N/A * @since 1.6
0N/A * @author Andreas Sterbenz
0N/A */
0N/Apublic final class ECPublicKeyImpl extends X509Key implements ECPublicKey {
0N/A
0N/A private static final long serialVersionUID = -2462037275160462289L;
0N/A
0N/A private ECPoint w;
0N/A private ECParameterSpec params;
0N/A
0N/A /**
0N/A * Construct a key from its components. Used by the
0N/A * ECKeyFactory and SunPKCS11.
0N/A */
0N/A public ECPublicKeyImpl(ECPoint w, ECParameterSpec params)
0N/A throws InvalidKeyException {
0N/A this.w = w;
0N/A this.params = params;
0N/A // generate the encoding
0N/A algid = new AlgorithmId
0N/A (AlgorithmId.EC_oid, ECParameters.getAlgorithmParameters(params));
0N/A key = ECParameters.encodePoint(w, params.getCurve());
0N/A }
0N/A
0N/A /**
0N/A * Construct a key from its encoding. Used by RSAKeyFactory.
0N/A */
0N/A public ECPublicKeyImpl(byte[] encoded) throws InvalidKeyException {
0N/A decode(encoded);
0N/A }
0N/A
0N/A // see JCA doc
0N/A public String getAlgorithm() {
0N/A return "EC";
0N/A }
0N/A
0N/A // see JCA doc
0N/A public ECPoint getW() {
0N/A return w;
0N/A }
0N/A
0N/A // see JCA doc
0N/A public ECParameterSpec getParams() {
0N/A return params;
0N/A }
0N/A
0N/A // Internal API to get the encoded point. Currently used by SunPKCS11.
0N/A // This may change/go away depending on what we do with the public API.
0N/A public byte[] getEncodedPublicValue() {
0N/A return key.clone();
0N/A }
0N/A
0N/A /**
0N/A * Parse the key. Called by X509Key.
0N/A */
0N/A protected void parseKeyBits() throws InvalidKeyException {
0N/A try {
0N/A AlgorithmParameters algParams = this.algid.getParameters();
0N/A params = algParams.getParameterSpec(ECParameterSpec.class);
0N/A w = ECParameters.decodePoint(key, params.getCurve());
0N/A } catch (IOException e) {
0N/A throw new InvalidKeyException("Invalid EC key", e);
0N/A } catch (InvalidParameterSpecException e) {
0N/A throw new InvalidKeyException("Invalid EC key", e);
0N/A }
0N/A }
0N/A
0N/A // return a string representation of this key for debugging
0N/A public String toString() {
0N/A return "Sun EC public key, " + params.getCurve().getField().getFieldSize()
0N/A + " bits\n public x coord: " + w.getAffineX()
0N/A + "\n public y coord: " + w.getAffineY()
0N/A + "\n parameters: " + params;
0N/A }
0N/A
0N/A protected Object writeReplace() throws java.io.ObjectStreamException {
0N/A return new KeyRep(KeyRep.Type.PUBLIC,
0N/A getAlgorithm(),
0N/A getFormat(),
0N/A getEncoded());
0N/A }
0N/A}