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105 lines
3.3 KiB
Java
105 lines
3.3 KiB
Java
/*
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* Copyright (c) 2020, 2022, 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 sun.security.ec.ed;
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import java.io.IOException;
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import java.security.InvalidKeyException;
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import java.security.interfaces.EdECPrivateKey;
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import java.util.Optional;
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import java.security.spec.NamedParameterSpec;
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import sun.security.pkcs.PKCS8Key;
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import sun.security.x509.AlgorithmId;
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import sun.security.util.*;
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public final class EdDSAPrivateKeyImpl
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extends PKCS8Key implements EdECPrivateKey {
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private static final long serialVersionUID = 1L;
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@SuppressWarnings("serial") // Type of field is not Serializable
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private final NamedParameterSpec paramSpec;
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private byte[] h;
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EdDSAPrivateKeyImpl(EdDSAParameters params, byte[] h)
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throws InvalidKeyException {
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this.paramSpec = new NamedParameterSpec(params.getName());
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this.algid = new AlgorithmId(params.getOid());
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this.h = h.clone();
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DerValue val = new DerValue(DerValue.tag_OctetString, h);
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try {
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this.key = val.toByteArray();
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} finally {
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val.clear();
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}
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checkLength(params);
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}
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EdDSAPrivateKeyImpl(byte[] encoded) throws InvalidKeyException {
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super(encoded);
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EdDSAParameters params = EdDSAParameters.get(
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InvalidKeyException::new, algid);
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paramSpec = new NamedParameterSpec(params.getName());
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try {
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DerInputStream derStream = new DerInputStream(key);
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h = derStream.getOctetString();
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} catch (IOException ex) {
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throw new InvalidKeyException(ex);
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}
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checkLength(params);
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}
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void checkLength(EdDSAParameters params) throws InvalidKeyException {
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if (params.getKeyLength() != this.h.length) {
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throw new InvalidKeyException("key length is " + this.h.length +
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", key length must be " + params.getKeyLength());
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}
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}
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public byte[] getKey() {
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return h.clone();
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}
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@Override
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public String getAlgorithm() {
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return "EdDSA";
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}
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@Override
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public NamedParameterSpec getParams() {
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return paramSpec;
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}
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@Override
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public Optional<byte[]> getBytes() {
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return Optional.of(getKey());
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}
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}
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