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	/*
	* reserved comment block
	* DO NOT REMOVE OR ALTER!
	*/
	/**
	* 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.
	*/
	/*
	* Copyright (c) 2005, 2019, Oracle and/or its affiliates. All rights reserved.
	*/
	/*
	* $Id: DOMSignatureMethod.java 1854026 2019-02-21 09:30:01Z coheigea $
	*/
	package org.jcp.xml.dsig.internal.dom;

	import javax.xml.crypto.*;
	import javax.xml.crypto.dsig.*;
	import javax.xml.crypto.dsig.spec.SignatureMethodParameterSpec;

	import java.io.IOException;
	import java.security.*;
	import java.security.interfaces.DSAKey;
	import java.security.spec.AlgorithmParameterSpec;
	import java.security.spec.MGF1ParameterSpec;
	import java.security.spec.PSSParameterSpec;

	import org.w3c.dom.Element;

	import com.sun.org.apache.xml.internal.security.algorithms.implementations.SignatureECDSA;
	import com.sun.org.apache.xml.internal.security.utils.JavaUtils;
	import org.jcp.xml.dsig.internal.SignerOutputStream;
	import sun.security.util.KeyUtil;

	/**
	* DOM-based abstract implementation of SignatureMethod.
	*
	*/
	public abstract class DOMSignatureMethod extends AbstractDOMSignatureMethod {

	private static final com.sun.org.slf4j.internal.Logger LOG =
	com.sun.org.slf4j.internal.LoggerFactory.getLogger(DOMSignatureMethod.class);

	private SignatureMethodParameterSpec params;
	private Signature signature;

	// see RFC 4051 for these algorithm definitions
	static final String RSA_SHA224 =
	"http://www.w3.org/2001/04/xmldsig-more#rsa-sha224";
	static final String RSA_SHA256 =
	"http://www.w3.org/2001/04/xmldsig-more#rsa-sha256";
	static final String RSA_SHA384 =
	"http://www.w3.org/2001/04/xmldsig-more#rsa-sha384";
	static final String RSA_SHA512 =
	"http://www.w3.org/2001/04/xmldsig-more#rsa-sha512";
	static final String RSA_RIPEMD160 =
	"http://www.w3.org/2001/04/xmldsig-more#rsa-ripemd160";
	static final String ECDSA_SHA1 =
	"http://www.w3.org/2001/04/xmldsig-more#ecdsa-sha1";
	static final String ECDSA_SHA224 =
	"http://www.w3.org/2001/04/xmldsig-more#ecdsa-sha224";
	static final String ECDSA_SHA256 =
	"http://www.w3.org/2001/04/xmldsig-more#ecdsa-sha256";
	static final String ECDSA_SHA384 =
	"http://www.w3.org/2001/04/xmldsig-more#ecdsa-sha384";
	static final String ECDSA_SHA512 =
	"http://www.w3.org/2001/04/xmldsig-more#ecdsa-sha512";
	static final String DSA_SHA256 =
	"http://www.w3.org/2009/xmldsig11#dsa-sha256";

	// see RFC 6931 for these algorithm definitions
	static final String ECDSA_RIPEMD160 =
	"http://www.w3.org/2007/05/xmldsig-more#ecdsa-ripemd160";
	static final String RSA_SHA1_MGF1 =
	"http://www.w3.org/2007/05/xmldsig-more#sha1-rsa-MGF1";
	static final String RSA_SHA224_MGF1 =
	"http://www.w3.org/2007/05/xmldsig-more#sha224-rsa-MGF1";
	static final String RSA_SHA256_MGF1 =
	"http://www.w3.org/2007/05/xmldsig-more#sha256-rsa-MGF1";
	static final String RSA_SHA384_MGF1 =
	"http://www.w3.org/2007/05/xmldsig-more#sha384-rsa-MGF1";
	static final String RSA_SHA512_MGF1 =
	"http://www.w3.org/2007/05/xmldsig-more#sha512-rsa-MGF1";
	static final String RSA_RIPEMD160_MGF1 =
	"http://www.w3.org/2007/05/xmldsig-more#ripemd160-rsa-MGF1";

	/**
	* Creates a {@code DOMSignatureMethod}.
	*
	* @param params the algorithm-specific params (may be {@code null})
	* @throws InvalidAlgorithmParameterException if the parameters are not
	* appropriate for this signature method
	*/
	DOMSignatureMethod(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException
	{
	if (params != null &&
	!(params instanceof SignatureMethodParameterSpec)) {
	throw new InvalidAlgorithmParameterException
	("params must be of type SignatureMethodParameterSpec");
	}
	checkParams((SignatureMethodParameterSpec)params);
	this.params = (SignatureMethodParameterSpec)params;
	}

	/**
	* Creates a {@code DOMSignatureMethod} from an element. This ctor
	* invokes the {@link #unmarshalParams unmarshalParams} method to
	* unmarshal any algorithm-specific input parameters.
	*
	* @param smElem a SignatureMethod element
	*/
	DOMSignatureMethod(Element smElem) throws MarshalException {
	Element paramsElem = DOMUtils.getFirstChildElement(smElem);
	if (paramsElem != null) {
	params = unmarshalParams(paramsElem);
	}
	try {
	checkParams(params);
	} catch (InvalidAlgorithmParameterException iape) {
	throw new MarshalException(iape);
	}
	}

	static SignatureMethod unmarshal(Element smElem) throws MarshalException {
	String alg = DOMUtils.getAttributeValue(smElem, "Algorithm");
	if (alg.equals(SignatureMethod.RSA_SHA1)) {
	return new SHA1withRSA(smElem);
	} else if (alg.equals(RSA_SHA224)) {
	return new SHA224withRSA(smElem);
	} else if (alg.equals(RSA_SHA256)) {
	return new SHA256withRSA(smElem);
	} else if (alg.equals(RSA_SHA384)) {
	return new SHA384withRSA(smElem);
	} else if (alg.equals(RSA_SHA512)) {
	return new SHA512withRSA(smElem);
	} else if (alg.equals(RSA_RIPEMD160)) {
	return new RIPEMD160withRSA(smElem);
	} else if (alg.equals(RSA_SHA1_MGF1)) {
	return new SHA1withRSAandMGF1(smElem);
	} else if (alg.equals(RSA_SHA224_MGF1)) {
	return new SHA224withRSAandMGF1(smElem);
	} else if (alg.equals(RSA_SHA256_MGF1)) {
	return new SHA256withRSAandMGF1(smElem);
	} else if (alg.equals(RSA_SHA384_MGF1)) {
	return new SHA384withRSAandMGF1(smElem);
	} else if (alg.equals(RSA_SHA512_MGF1)) {
	return new SHA512withRSAandMGF1(smElem);
	} else if (alg.equals(RSA_RIPEMD160_MGF1)) {
	return new RIPEMD160withRSAandMGF1(smElem);
	} else if (alg.equals(SignatureMethod.DSA_SHA1)) {
	return new SHA1withDSA(smElem);
	} else if (alg.equals(DSA_SHA256)) {
	return new SHA256withDSA(smElem);
	} else if (alg.equals(ECDSA_SHA1)) {
	return new SHA1withECDSA(smElem);
	} else if (alg.equals(ECDSA_SHA224)) {
	return new SHA224withECDSA(smElem);
	} else if (alg.equals(ECDSA_SHA256)) {
	return new SHA256withECDSA(smElem);
	} else if (alg.equals(ECDSA_SHA384)) {
	return new SHA384withECDSA(smElem);
	} else if (alg.equals(ECDSA_SHA512)) {
	return new SHA512withECDSA(smElem);
	} else if (alg.equals(ECDSA_RIPEMD160)) {
	return new RIPEMD160withECDSA(smElem);
	} else if (alg.equals(SignatureMethod.HMAC_SHA1)) {
	return new DOMHMACSignatureMethod.SHA1(smElem);
	} else if (alg.equals(DOMHMACSignatureMethod.HMAC_SHA224)) {
	return new DOMHMACSignatureMethod.SHA224(smElem);
	} else if (alg.equals(DOMHMACSignatureMethod.HMAC_SHA256)) {
	return new DOMHMACSignatureMethod.SHA256(smElem);
	} else if (alg.equals(DOMHMACSignatureMethod.HMAC_SHA384)) {
	return new DOMHMACSignatureMethod.SHA384(smElem);
	} else if (alg.equals(DOMHMACSignatureMethod.HMAC_SHA512)) {
	return new DOMHMACSignatureMethod.SHA512(smElem);
	} else if (alg.equals(DOMHMACSignatureMethod.HMAC_RIPEMD160)) {
	return new DOMHMACSignatureMethod.RIPEMD160(smElem);
	} else {
	throw new MarshalException
	("unsupported SignatureMethod algorithm: " + alg);
	}
	}

	public final AlgorithmParameterSpec getParameterSpec() {
	return params;
	}

	/**
	* Returns an instance of Signature from the specified Provider.
	* The algorithm is specified by the {@code getJCAAlgorithm()} method.
	*
	* @param p the Provider to use
	* @return an instance of Signature implementing the algorithm
	* specified by {@code getJCAAlgorithm()}
	* @throws NoSuchAlgorithmException if the Provider does not support the
	* signature algorithm
	*/
	Signature getSignature(Provider p)
	throws NoSuchAlgorithmException {
	return (p == null)
	? Signature.getInstance(getJCAAlgorithm())
	: Signature.getInstance(getJCAAlgorithm(), p);
	}

	boolean verify(Key key, SignedInfo si, byte[] sig,
	XMLValidateContext context)
	throws InvalidKeyException, SignatureException, XMLSignatureException
	{
	if (key == null \|\| si == null \|\| sig == null) {
	throw new NullPointerException();
	}

	if (!(key instanceof PublicKey)) {
	throw new InvalidKeyException("key must be PublicKey");
	}
	checkKeySize(context, key);
	if (signature == null) {
	Provider p = (Provider) context.getProperty
	("org.jcp.xml.dsig.internal.dom.SignatureProvider");
	try {
	signature = getSignature(p);
	} catch (NoSuchAlgorithmException nsae) {
	throw new XMLSignatureException(nsae);
	}
	}
	signature.initVerify((PublicKey)key);
	LOG.debug("Signature provider: {}", signature.getProvider());
	LOG.debug("Verifying with key: {}", key);
	LOG.debug("JCA Algorithm: {}", getJCAAlgorithm());
	LOG.debug("Signature Bytes length: {}", sig.length);

	try (SignerOutputStream outputStream = new SignerOutputStream(signature)) {
	((DOMSignedInfo)si).canonicalize(context, outputStream);
	Type type = getAlgorithmType();
	if (type == Type.DSA) {
	int size = ((DSAKey)key).getParams().getQ().bitLength();
	return signature.verify(JavaUtils.convertDsaXMLDSIGtoASN1(sig,
	size/8));
	} else if (type == Type.ECDSA) {
	return signature.verify(SignatureECDSA.convertXMLDSIGtoASN1(sig));
	} else {
	return signature.verify(sig);
	}
	} catch (IOException ioe) {
	throw new XMLSignatureException(ioe);
	}
	}

	/**
	* If secure validation mode is enabled, checks that the key size is
	* restricted.
	*
	* @param context the context
	* @param key the key to check
	* @throws XMLSignatureException if the key size is restricted
	*/
	private static void checkKeySize(XMLCryptoContext context, Key key)
	throws XMLSignatureException {
	if (Utils.secureValidation(context)) {
	int size = KeyUtil.getKeySize(key);
	if (size == -1) {
	// key size cannot be determined, so we cannot check against
	// restrictions. Note that a DSA key w/o params will be
	// rejected later if the certificate chain is validated.
	LOG.debug("Size for " +
	key.getAlgorithm() + " key cannot be determined");
	return;
	}
	if (Policy.restrictKey(key.getAlgorithm(), size)) {
	throw new XMLSignatureException(key.getAlgorithm() +
	" keys less than " +
	Policy.minKeySize(key.getAlgorithm()) + " bits are" +
	" forbidden when secure validation is enabled");
	}
	}
	}

	byte[] sign(Key key, SignedInfo si, XMLSignContext context)
	throws InvalidKeyException, XMLSignatureException
	{
	if (key == null \|\| si == null) {
	throw new NullPointerException();
	}

	if (!(key instanceof PrivateKey)) {
	throw new InvalidKeyException("key must be PrivateKey");
	}
	checkKeySize(context, key);
	if (signature == null) {
	Provider p = (Provider)context.getProperty
	("org.jcp.xml.dsig.internal.dom.SignatureProvider");
	try {
	signature = getSignature(p);
	} catch (NoSuchAlgorithmException nsae) {
	throw new XMLSignatureException(nsae);
	}
	}
	signature.initSign((PrivateKey)key);
	LOG.debug("Signature provider: {}", signature.getProvider());
	LOG.debug("Signing with key: {}", key);
	LOG.debug("JCA Algorithm: {}", getJCAAlgorithm());

	try (SignerOutputStream outputStream = new SignerOutputStream(signature)) {
	((DOMSignedInfo)si).canonicalize(context, outputStream);
	Type type = getAlgorithmType();
	if (type == Type.DSA) {
	int size = ((DSAKey)key).getParams().getQ().bitLength();
	return JavaUtils.convertDsaASN1toXMLDSIG(signature.sign(),
	size/8);
	} else if (type == Type.ECDSA) {
	return SignatureECDSA.convertASN1toXMLDSIG(signature.sign());
	} else {
	return signature.sign();
	}
	} catch (SignatureException se) {
	throw new XMLSignatureException(se);
	} catch (IOException ioe) {
	throw new XMLSignatureException(ioe);
	}
	}

	abstract static class AbstractRSAPSSSignatureMethod
	extends DOMSignatureMethod {

	AbstractRSAPSSSignatureMethod(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}

	AbstractRSAPSSSignatureMethod(Element dmElem) throws MarshalException {
	super(dmElem);
	}

	abstract public PSSParameterSpec getPSSParameterSpec();

	@Override
	Signature getSignature(Provider p)
	throws NoSuchAlgorithmException {
	try {
	Signature s = (p == null)
	? Signature.getInstance("RSASSA-PSS")
	: Signature.getInstance("RSASSA-PSS", p);
	try {
	s.setParameter(getPSSParameterSpec());
	} catch (InvalidAlgorithmParameterException e) {
	throw new NoSuchAlgorithmException("Should not happen", e);
	}
	return s;
	} catch (NoSuchAlgorithmException nsae) {
	return (p == null)
	? Signature.getInstance(getJCAAlgorithm())
	: Signature.getInstance(getJCAAlgorithm(), p);
	}
	}
	}
	static final class SHA1withRSA extends DOMSignatureMethod {
	SHA1withRSA(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	SHA1withRSA(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	@Override
	public String getAlgorithm() {
	return SignatureMethod.RSA_SHA1;
	}
	@Override
	String getJCAAlgorithm() {
	return "SHA1withRSA";
	}
	@Override
	Type getAlgorithmType() {
	return Type.RSA;
	}
	}

	static final class SHA224withRSA extends DOMSignatureMethod {
	SHA224withRSA(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	SHA224withRSA(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	public String getAlgorithm() {
	return RSA_SHA224;
	}
	String getJCAAlgorithm() {
	return "SHA224withRSA";
	}
	Type getAlgorithmType() {
	return Type.RSA;
	}
	}

	static final class SHA256withRSA extends DOMSignatureMethod {
	SHA256withRSA(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	SHA256withRSA(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	public String getAlgorithm() {
	return RSA_SHA256;
	}
	String getJCAAlgorithm() {
	return "SHA256withRSA";
	}
	Type getAlgorithmType() {
	return Type.RSA;
	}
	}

	static final class SHA384withRSA extends DOMSignatureMethod {
	SHA384withRSA(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	SHA384withRSA(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	public String getAlgorithm() {
	return RSA_SHA384;
	}
	String getJCAAlgorithm() {
	return "SHA384withRSA";
	}
	Type getAlgorithmType() {
	return Type.RSA;
	}
	}

	static final class SHA512withRSA extends DOMSignatureMethod {
	SHA512withRSA(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	SHA512withRSA(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	public String getAlgorithm() {
	return RSA_SHA512;
	}
	String getJCAAlgorithm() {
	return "SHA512withRSA";
	}
	Type getAlgorithmType() {
	return Type.RSA;
	}
	}

	static final class RIPEMD160withRSA extends DOMSignatureMethod {
	RIPEMD160withRSA(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	RIPEMD160withRSA(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	@Override
	public String getAlgorithm() {
	return RSA_RIPEMD160;
	}
	@Override
	String getJCAAlgorithm() {
	return "RIPEMD160withRSA";
	}
	@Override
	Type getAlgorithmType() {
	return Type.RSA;
	}
	}

	static final class SHA1withRSAandMGF1 extends AbstractRSAPSSSignatureMethod {

	private static PSSParameterSpec spec
	= new PSSParameterSpec("SHA-1", "MGF1", MGF1ParameterSpec.SHA1,
	20, PSSParameterSpec.TRAILER_FIELD_BC);

	SHA1withRSAandMGF1(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	SHA1withRSAandMGF1(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	@Override
	public String getAlgorithm() {
	return RSA_SHA1_MGF1;
	}
	@Override
	public PSSParameterSpec getPSSParameterSpec() {
	return spec;
	}
	@Override
	String getJCAAlgorithm() {
	return "SHA1withRSAandMGF1";
	}
	@Override
	Type getAlgorithmType() {
	return Type.RSA;
	}
	}

	static final class SHA224withRSAandMGF1 extends AbstractRSAPSSSignatureMethod {

	private static PSSParameterSpec spec
	= new PSSParameterSpec("SHA-224", "MGF1", MGF1ParameterSpec.SHA224,
	28, PSSParameterSpec.TRAILER_FIELD_BC);

	SHA224withRSAandMGF1(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	SHA224withRSAandMGF1(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	@Override
	public String getAlgorithm() {
	return RSA_SHA224_MGF1;
	}
	@Override
	public PSSParameterSpec getPSSParameterSpec() {
	return spec;
	}
	@Override
	String getJCAAlgorithm() {
	return "SHA224withRSAandMGF1";
	}
	@Override
	Type getAlgorithmType() {
	return Type.RSA;
	}
	}

	static final class SHA256withRSAandMGF1 extends AbstractRSAPSSSignatureMethod {

	private static PSSParameterSpec spec
	= new PSSParameterSpec("SHA-256", "MGF1", MGF1ParameterSpec.SHA256,
	32, PSSParameterSpec.TRAILER_FIELD_BC);

	SHA256withRSAandMGF1(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	SHA256withRSAandMGF1(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	@Override
	public String getAlgorithm() {
	return RSA_SHA256_MGF1;
	}
	@Override
	public PSSParameterSpec getPSSParameterSpec() {
	return spec;
	}
	@Override
	String getJCAAlgorithm() {
	return "SHA256withRSAandMGF1";
	}
	@Override
	Type getAlgorithmType() {
	return Type.RSA;
	}
	}

	static final class SHA384withRSAandMGF1 extends AbstractRSAPSSSignatureMethod {

	private static PSSParameterSpec spec
	= new PSSParameterSpec("SHA-384", "MGF1", MGF1ParameterSpec.SHA384,
	48, PSSParameterSpec.TRAILER_FIELD_BC);

	SHA384withRSAandMGF1(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	SHA384withRSAandMGF1(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	@Override
	public String getAlgorithm() {
	return RSA_SHA384_MGF1;
	}
	@Override
	public PSSParameterSpec getPSSParameterSpec() {
	return spec;
	}
	@Override
	String getJCAAlgorithm() {
	return "SHA384withRSAandMGF1";
	}
	@Override
	Type getAlgorithmType() {
	return Type.RSA;
	}
	}

	static final class SHA512withRSAandMGF1 extends AbstractRSAPSSSignatureMethod {

	private static PSSParameterSpec spec
	= new PSSParameterSpec("SHA-512", "MGF1", MGF1ParameterSpec.SHA512,
	64, PSSParameterSpec.TRAILER_FIELD_BC);

	SHA512withRSAandMGF1(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	SHA512withRSAandMGF1(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	@Override
	public String getAlgorithm() {
	return RSA_SHA512_MGF1;
	}
	@Override
	public PSSParameterSpec getPSSParameterSpec() {
	return spec;
	}
	@Override
	String getJCAAlgorithm() {
	return "SHA512withRSAandMGF1";
	}
	@Override
	Type getAlgorithmType() {
	return Type.RSA;
	}
	}

	static final class RIPEMD160withRSAandMGF1 extends DOMSignatureMethod {
	RIPEMD160withRSAandMGF1(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	RIPEMD160withRSAandMGF1(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	@Override
	public String getAlgorithm() {
	return RSA_RIPEMD160_MGF1;
	}
	@Override
	String getJCAAlgorithm() {
	return "RIPEMD160withRSAandMGF1";
	}
	@Override
	Type getAlgorithmType() {
	return Type.RSA;
	}
	}

	static final class SHA1withDSA extends DOMSignatureMethod {
	SHA1withDSA(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	SHA1withDSA(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	public String getAlgorithm() {
	return SignatureMethod.DSA_SHA1;
	}
	String getJCAAlgorithm() {
	return "SHA1withDSA";
	}
	Type getAlgorithmType() {
	return Type.DSA;
	}
	}

	static final class SHA256withDSA extends DOMSignatureMethod {
	SHA256withDSA(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	SHA256withDSA(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	public String getAlgorithm() {
	return DSA_SHA256;
	}
	String getJCAAlgorithm() {
	return "SHA256withDSA";
	}
	Type getAlgorithmType() {
	return Type.DSA;
	}
	}

	static final class SHA1withECDSA extends DOMSignatureMethod {
	SHA1withECDSA(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	SHA1withECDSA(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	public String getAlgorithm() {
	return ECDSA_SHA1;
	}
	String getJCAAlgorithm() {
	return "SHA1withECDSA";
	}
	Type getAlgorithmType() {
	return Type.ECDSA;
	}
	}

	static final class SHA224withECDSA extends DOMSignatureMethod {
	SHA224withECDSA(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	SHA224withECDSA(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	@Override
	public String getAlgorithm() {
	return ECDSA_SHA224;
	}
	@Override
	String getJCAAlgorithm() {
	return "SHA224withECDSA";
	}
	@Override
	Type getAlgorithmType() {
	return Type.ECDSA;
	}
	}

	static final class SHA256withECDSA extends DOMSignatureMethod {
	SHA256withECDSA(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	SHA256withECDSA(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	public String getAlgorithm() {
	return ECDSA_SHA256;
	}
	String getJCAAlgorithm() {
	return "SHA256withECDSA";
	}
	Type getAlgorithmType() {
	return Type.ECDSA;
	}
	}

	static final class SHA384withECDSA extends DOMSignatureMethod {
	SHA384withECDSA(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	SHA384withECDSA(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	public String getAlgorithm() {
	return ECDSA_SHA384;
	}
	String getJCAAlgorithm() {
	return "SHA384withECDSA";
	}
	Type getAlgorithmType() {
	return Type.ECDSA;
	}
	}

	static final class SHA512withECDSA extends DOMSignatureMethod {
	SHA512withECDSA(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	SHA512withECDSA(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	public String getAlgorithm() {
	return ECDSA_SHA512;
	}
	String getJCAAlgorithm() {
	return "SHA512withECDSA";
	}
	Type getAlgorithmType() {
	return Type.ECDSA;
	}
	}

	static final class RIPEMD160withECDSA extends DOMSignatureMethod {
	RIPEMD160withECDSA(AlgorithmParameterSpec params)
	throws InvalidAlgorithmParameterException {
	super(params);
	}
	RIPEMD160withECDSA(Element dmElem) throws MarshalException {
	super(dmElem);
	}
	@Override
	public String getAlgorithm() {
	return ECDSA_RIPEMD160;
	}
	@Override
	String getJCAAlgorithm() {
	return "RIPEMD160withECDSA";
	}
	@Override
	Type getAlgorithmType() {
	return Type.ECDSA;
	}
	}

	}

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