/* * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. *//* * $Id: SignatureMethod.java,v 1.5 2005/05/10 16:03:46 mullan Exp $ */package javax.xml.crypto.dsig; import javax.xml.crypto.AlgorithmMethod;import javax.xml.crypto.XMLStructure;import javax.xml.crypto.dsig.spec.SignatureMethodParameterSpec;import java.security.spec.AlgorithmParameterSpec; /** * A representation of the XML <code>SignatureMethod</code> element * as defined in the <a href="http://www.w3.org/TR/xmldsig-core/"> * W3C Recommendation for XML-Signature Syntax and Processing</a>. * The XML Schema Definition is defined as: * <p> * <pre> *   &lt;element name="SignatureMethod" type="ds:SignatureMethodType"/&gt; *     &lt;complexType name="SignatureMethodType" mixed="true"&gt; *       &lt;sequence&gt; *         &lt;element name="HMACOutputLength" minOccurs="0" type="ds:HMACOutputLengthType"/&gt; *         &lt;any namespace="##any" minOccurs="0" maxOccurs="unbounded"/&gt; *           &lt;!-- (0,unbounded) elements from (1,1) namespace --&gt; *       &lt;/sequence&gt; *       &lt;attribute name="Algorithm" type="anyURI" use="required"/&gt; *     &lt;/complexType&gt; * </pre> * * A <code>SignatureMethod</code> instance may be created by invoking the * {@link XMLSignatureFactory#newSignatureMethod newSignatureMethod} method * of the {@link XMLSignatureFactory} class. * * @author Sean Mullan * @author JSR 105 Expert Group * @since 1.6 * @see XMLSignatureFactory#newSignatureMethod(String, SignatureMethodParameterSpec) */public interface SignatureMethod extends XMLStructure, AlgorithmMethod {     /**     * The <a href="http://www.w3.org/2000/09/xmldsig#dsa-sha1">DSAwithSHA1</a>     * (DSS) signature method algorithm URI.     */    static final String DSA_SHA1 =        "http://www.w3.org/2000/09/xmldsig#dsa-sha1";     /**     * The <a href="http://www.w3.org/2000/09/xmldsig#rsa-sha1">RSAwithSHA1</a>     * (PKCS #1) signature method algorithm URI.     */    static final String RSA_SHA1 =        "http://www.w3.org/2000/09/xmldsig#rsa-sha1";     /**     * The <a href="http://www.w3.org/2000/09/xmldsig#hmac-sha1">HMAC-SHA1</a>     * MAC signature method algorithm URI     */    static final String HMAC_SHA1 =        "http://www.w3.org/2000/09/xmldsig#hmac-sha1";     /**     * Returns the algorithm-specific input parameters of this     * <code>SignatureMethod</code>.     *     * <p>The returned parameters can be typecast to a {@link     * SignatureMethodParameterSpec} object.     *     * @return the algorithm-specific input parameters of this     *    <code>SignatureMethod</code> (may be <code>null</code> if not     *    specified)     */    AlgorithmParameterSpec getParameterSpec();}