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322 lines
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322 lines
13 KiB
HTML
<div class="header">
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<div class="subTitle">
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javax.crypto.spec
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<h2 class="title" title="Class RC2ParameterSpec">Class RC2ParameterSpec</h2>
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</div><div class="contentContainer">
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<ul class="inheritance">
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<li><a href="../../../java/lang/Object.html" title="class in java.lang">java.lang.Object</a></li>
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<li>
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<ul class="inheritance">
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<li>javax.crypto.spec.RC2ParameterSpec</li>
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</ul> </li>
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</ul>
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<div class="description">
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<dl>
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<dt>
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All Implemented Interfaces:
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</dt>
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<dd>
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<span><a href="../../../java/security/spec/AlgorithmParameterSpec.html" title="java.security.spec中的接口">AlgorithmParameterSpec</a></span>
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</dd>
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</dl>
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<hr/> <br/> <pre>public class <span class="typeNameLabel">RC2ParameterSpec</span>
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extends <a href="../../../java/lang/Object.html" title="class in java.lang">Object</a>
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implements <a href="../../../java/security/spec/AlgorithmParameterSpec.html" title="interface in java.security.spec">AlgorithmParameterSpec</a></pre>
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<div class="block">
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<span>此类指定与使用的参数<a href="http://www.ietf.org/rfc/rfc2268.txt"><i>RC2</i></a>算法。</span>
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<p> <span>参数由有效的密钥大小和可选的8字节初始化向量（IV）组成（仅在反馈模式下）。</span> </p>
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<p> <span>该类可用于初始化实现<i>RC2</i>算法的<code>Cipher</code>对象。</span> </p>
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</div>
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<dl>
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<dt>
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<span class="simpleTagLabel">从以下版本开始：</span>
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</dt>
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<dd>
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1.4
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</dd>
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</dl> </li>
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</ul>
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</div>
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<div class="summary">
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<!-- --> </a> <h3>构造方法摘要</h3>
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<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Constructor Summary table, listing constructors, and an explanation">
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<caption>
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<span>构造方法</span>
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<span class="tabEnd"> </span>
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</caption>
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<tbody>
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<tr>
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<th class="colOne" scope="col">Constructor and Description</th>
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<tr class="altColor">
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../javax/crypto/spec/RC2ParameterSpec.html#RC2ParameterSpec-int-">RC2ParameterSpec</a></span>(int effectiveKeyBits)</code>
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<div class="block">
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根据给定的有效密钥大小（以位为单位）构建RC2的参数集。
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</div> </td>
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</tr>
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<tr class="rowColor">
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../javax/crypto/spec/RC2ParameterSpec.html#RC2ParameterSpec-int-byte:A-">RC2ParameterSpec</a></span>(int effectiveKeyBits, byte[] iv)</code>
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<div class="block">
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从给定的有效密钥大小（以比特）和8字节的IV构造一个RC2参数集。
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</div> </td>
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</tr>
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<tr class="altColor">
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../javax/crypto/spec/RC2ParameterSpec.html#RC2ParameterSpec-int-byte:A-int-">RC2ParameterSpec</a></span>(int effectiveKeyBits, byte[] iv, int offset)</code>
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<div class="block">
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从给定的有效密钥大小（以位）和IV构造一个RC2参数集。
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</div> </td>
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</tr>
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</tbody>
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</table> </li>
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</ul>
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<!-- ========== METHOD SUMMARY =========== -->
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<ul class="blockList">
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<li class="blockList"><a name="method.summary">
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<!-- --> </a> <h3>方法摘要</h3>
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<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Method Summary table, listing methods, and an explanation">
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<caption>
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<span class="activeTableTab" id="t0"><span>所有方法</span><span class="tabEnd"> </span></span>
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<span class="tableTab" id="t2"><span><a href="javascript:show(2);">接口方法</a></span><span class="tabEnd"> </span></span>
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<span class="tableTab" id="t4"><span><a href="javascript:show(8);">具体的方法</a></span><span class="tabEnd"> </span></span>
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</caption>
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<tbody>
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<tr>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colLast" scope="col">Method and Description</th>
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</tr>
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<tr class="altColor" id="i0">
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<td class="colFirst"><code>boolean</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/crypto/spec/RC2ParameterSpec.html#equals-java.lang.Object-">equals</a></span>(<a href="../../../java/lang/Object.html" title="class in java.lang">Object</a> obj)</code>
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<div class="block">
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测试指定对象和此对象之间的相等性。
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</div> </td>
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</tr>
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<tr class="rowColor" id="i1">
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<td class="colFirst"><code>int</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/crypto/spec/RC2ParameterSpec.html#getEffectiveKeyBits--">getEffectiveKeyBits</a></span>()</code>
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<div class="block">
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返回有效的密钥大小（以比特为单位）。
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</div> </td>
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</tr>
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<tr class="altColor" id="i2">
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<td class="colFirst"><code>byte[]</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/crypto/spec/RC2ParameterSpec.html#getIV--">getIV</a></span>()</code>
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<div class="block">
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如果此参数集不包含IV，则返回IV或null。
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</div> </td>
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</tr>
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<tr class="rowColor" id="i3">
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<td class="colFirst"><code>int</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/crypto/spec/RC2ParameterSpec.html#hashCode--">hashCode</a></span>()</code>
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<div class="block">
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计算对象的哈希码值。
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</div> </td>
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</tr>
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</tbody>
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</table>
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<ul class="blockList">
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<li class="blockList"><a name="methods.inherited.from.class.java.lang.Object">
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<!-- --> </a> <h3>Methods inherited from class java.lang.<a href="../../../java/lang/Object.html" title="class in java.lang">Object</a></h3> <code><a href="../../../java/lang/Object.html#clone--">clone</a>, <a href="../../../java/lang/Object.html#finalize--">finalize</a>, <a href="../../../java/lang/Object.html#getClass--">getClass</a>, <a href="../../../java/lang/Object.html#notify--">notify</a>, <a href="../../../java/lang/Object.html#notifyAll--">notifyAll</a>, <a href="../../../java/lang/Object.html#toString--">toString</a>, <a href="../../../java/lang/Object.html#wait--">wait</a>, <a href="../../../java/lang/Object.html#wait-long-">wait</a>, <a href="../../../java/lang/Object.html#wait-long-int-">wait</a></code></li>
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</ul> </li>
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</ul> </li>
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</ul>
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</div>
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<div class="details">
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<!-- ========= CONSTRUCTOR DETAIL ======== -->
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<ul class="blockList">
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<li class="blockList"><a name="constructor.detail">
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<!-- --> </a> <h3>构造方法详细信息</h3> <a name="RC2ParameterSpec-int-">
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<ul class="blockList">
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<li class="blockList"> <h4>RC2ParameterSpec</h4> <pre>public RC2ParameterSpec(int effectiveKeyBits)</pre>
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<div class="block">
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根据给定的有效密钥大小（以位为单位）构建RC2的参数集。
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</div>
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<dl>
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<dt>
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<span class="paramLabel">参数</span>
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</dt>
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<dd>
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<code>effectiveKeyBits</code> - 有效的密钥大小（以比特为单位）。
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</dd>
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</dl> </li>
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</ul> <a name="RC2ParameterSpec-int-byte:A-">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>RC2ParameterSpec</h4> <pre>public RC2ParameterSpec(int effectiveKeyBits,
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byte[] iv)</pre>
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<div class="block">
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<span>从给定的有效密钥大小（以比特）和8字节的IV构造一个RC2参数集。</span>
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<p> <span>组成IV的字节在之间<code>iv[0]</code>和<code>iv[7]</code>以下。</span> </p>
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</div>
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<dl>
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<dt>
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<span class="paramLabel">参数</span>
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</dt>
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<dd>
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<code>effectiveKeyBits</code> - 有效的密钥大小（以比特为单位）。
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</dd>
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<dd>
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<span><code>iv</code> - 具有8字节IV的缓冲区。</span>
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<span>复制缓冲区的前8个字节以防止后续修改。</span>
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</dd>
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<dt>
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<span class="throwsLabel">异常</span>
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</dt>
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<dd>
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<code><a href="../../../java/lang/IllegalArgumentException.html" title="class in java.lang">IllegalArgumentException</a></code> - 如果
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<code>iv</code>为空。
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</dd>
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</dl> </li>
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</ul> <a name="RC2ParameterSpec-int-byte:A-int-">
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<!-- --> </a>
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<ul class="blockListLast">
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<li class="blockList"> <h4>RC2ParameterSpec</h4> <pre>public RC2ParameterSpec(int effectiveKeyBits,
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byte[] iv,
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int offset)</pre>
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<div class="block">
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<span>从给定的有效密钥大小（以位）和IV构造一个RC2参数集。</span>
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<p> <span>所述IV取自<code>iv</code> ，起始于<code>offset</code>以下。</span> <span>构成IV的字节是在<code>iv[offset]</code>和<code>iv[offset+7]</code>之间的字节。</span> </p>
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</div>
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<dl>
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<dt>
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<span class="paramLabel">参数</span>
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</dt>
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<dd>
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<code>effectiveKeyBits</code> - 有效密钥大小（以比特为单位）。
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</dd>
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<dd>
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<span><code>iv</code> - 具有IV的缓冲区。</span>
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<span>前8个字节在开始缓冲的<code>offset</code>包容被复制到防止后续修改。</span>
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</dd>
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<dd>
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<code>offset</code> -
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<code>iv</code>中的8字节IV启动时的偏移量。
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</dd>
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<dt>
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<span class="throwsLabel">异常</span>
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</dt>
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<dd>
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<code><a href="../../../java/lang/IllegalArgumentException.html" title="class in java.lang">IllegalArgumentException</a></code> - 如果
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<code>iv</code>为空。
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</dd>
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</dl> </li>
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</ul> </li>
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</ul>
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<!-- ============ METHOD DETAIL ========== -->
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<ul class="blockList">
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<li class="blockList"><a name="method.detail">
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<!-- --> </a> <h3>方法详细信息</h3> <a name="getEffectiveKeyBits--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>getEffectiveKeyBits</h4> <pre>public int getEffectiveKeyBits()</pre>
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<div class="block">
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返回有效的密钥大小（以比特为单位）。
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</div>
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<dl>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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有效的密钥大小以位为单位。
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</dd>
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</dl> </li>
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</ul> <a name="getIV--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>getIV</h4> <pre>public byte[] getIV()</pre>
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<div class="block">
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如果此参数集不包含IV，则返回IV或null。
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</div>
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<dl>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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<span>IV或如果此参数集不包含IV，则为null。</span>
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<span>每次调用此方法时都会返回一个新数组。</span>
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</dd>
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</dl> </li>
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</ul> <a name="equals-java.lang.Object-">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>equals</h4> <pre>public boolean equals(<a href="../../../java/lang/Object.html" title="class in java.lang">Object</a> obj)</pre>
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<div class="block">
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<span>测试指定对象和此对象之间的相等性。</span>
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<span>如果两个RC2ParameterSpec对象的有效密钥大小和IV相等，则它们被认为是相等的。</span>
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<span>（两个IV引用被认为是相等如果两者都<tt>null）。</tt></span>
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</div>
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<dl>
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<dt>
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<span class="overrideSpecifyLabel">重写：</span>
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</dt>
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<dd>
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<code><a href="../../../java/lang/Object.html#equals-java.lang.Object-">equals</a></code>在
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<code><a href="../../../java/lang/Object.html" title="class in java.lang">Object</a></code>
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</dd>
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<dt>
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<span class="paramLabel">参数</span>
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</dt>
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<dd>
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<code>obj</code> - 要测试与此对象相等的对象。
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</dd>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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如果对象被视为相等，则为true，
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<code>obj</code>为
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<code>obj</code>为空。
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</dd>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<span><a href="../../../java/lang/Object.html#hashCode--"><code>Object.hashCode()</code></a> ， <a href="../../../java/util/HashMap.html" title="java.util中的类"><code>HashMap</code></a></span>
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</dd>
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</dl> </li>
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</ul> <a name="hashCode--">
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<!-- --> </a>
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<ul class="blockListLast">
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<li class="blockList"> <h4>hashCode</h4> <pre>public int hashCode()</pre>
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<div class="block">
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<span>计算对象的哈希码值。</span>
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<span>相等的对象也将具有相同的哈希码。</span>
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</div>
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<dl>
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<dt>
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<span class="overrideSpecifyLabel">重写：</span>
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</dt>
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<dd>
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<code><a href="../../../java/lang/Object.html#hashCode--">hashCode</a></code>在类别
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<code><a href="../../../java/lang/Object.html" title="class in java.lang">Object</a></code>
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</dd>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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该对象的哈希码值。
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</dd>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<a href="../../../java/lang/Object.html#equals-java.lang.Object-"><code>Object.equals(java.lang.Object)</code></a> ，
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<a href="../../../java/lang/System.html#identityHashCode-java.lang.Object-"><code>System.identityHashCode(java.lang.Object)</code></a>
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</dd>
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</dl> </li>
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</ul> </li>
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</ul> </li>
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</ul>
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</div>
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</div> |