JDK14/Java14源码在线阅读

/*
 * 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
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 */
/*
 * $Id: HMACParameterSpec.java,v 1.4 2005/05/10 16:40:17 mullan Exp $
 */
package javax.xml.crypto.dsig.spec;

import javax.xml.crypto.dsig.SignatureMethod;

/**
 * Parameters for the <a href="http://www.w3.org/TR/xmldsig-core/#sec-MACs">
 * XML Signature HMAC Algorithm</a>. The parameters include an optional output
 * length which specifies the MAC truncation length in bits. The resulting
 * HMAC will be truncated to the specified number of bits. If the parameter is
 * not specified, then this implies that all the bits of the hash are to be
 * output. The XML Schema Definition of the <code>HMACOutputLength</code>
 * element is defined as:
 * <pre><code>
 * &lt;element name="HMACOutputLength" minOccurs="0" type="ds:HMACOutputLengthType"/&gt;
 * &lt;simpleType name="HMACOutputLengthType"&gt;
 *   &lt;restriction base="integer"/&gt;
 * &lt;/simpleType&gt;
 * </code></pre>
 *
 * @author Sean Mullan
 * @author JSR 105 Expert Group
 * @since 1.6
 * @see SignatureMethod
 * @see <a href="http://www.ietf.org/rfc/rfc2104.txt">RFC 2104</a>
 */
public final class HMACParameterSpec implements SignatureMethodParameterSpec {

    private int outputLength;

    /**
     * Creates an <code>HMACParameterSpec</code> with the specified truncation
     * length.
     *
     * @param outputLength the truncation length in number of bits
     */

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