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220 lines
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javax.crypto
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<h2 class="title" title="Class SecretKeyFactorySpi">Class SecretKeyFactorySpi</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.SecretKeyFactorySpi</li>
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</ul> </li>
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<div class="description">
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<hr/> <br/> <pre>public abstract class <span class="typeNameLabel">SecretKeyFactorySpi</span>
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extends <a href="../../java/lang/Object.html" title="class in java.lang">Object</a></pre>
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<div class="block">
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<span>这个类定义的 <span>（SPI）</span> <code>SecretKeyFactory</code>类。</span>
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<span>该类中的所有抽象方法必须由希望为特定算法提供秘密密钥工厂的实现的每个加密服务提供商实现。</span>
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<p> <span>提供商应记录其密钥工厂支持的所有关键规范。</span> <span>例如，由“SunJCE”提供商提供的DES秘密密钥工厂支持<code>DESKeySpec</code>作为DES密钥的透明表示，该提供商的三重DES密钥的秘密密钥工厂支持<code>DESedeKeySpec</code>作为三重DES密钥的透明表示。</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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<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="../../javax/crypto/SecretKey.html" title="javax.crypto中的接口"><code>SecretKey</code></a> ， <a href="../../javax/crypto/spec/DESKeySpec.html" title="javax.crypto.spec中的类"><code>DESKeySpec</code></a> ， <a href="../../javax/crypto/spec/DESedeKeySpec.html" title="javax.crypto.spec中的类"><code>DESedeKeySpec</code></a></span>
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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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<ul class="blockList">
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<li class="blockList"><a name="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>
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<tr class="altColor">
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<td class="colOne"><code><span class="memberNameLink"><a href="../../javax/crypto/SecretKeyFactorySpi.html#SecretKeyFactorySpi--">SecretKeyFactorySpi</a></span>()</code> </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="t3"><span><a href="javascript:show(4);">抽象方法</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>protected abstract <a href="../../javax/crypto/SecretKey.html" title="interface in javax.crypto">SecretKey</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/crypto/SecretKeyFactorySpi.html#engineGenerateSecret-java.security.spec.KeySpec-">engineGenerateSecret</a></span>(<a href="../../java/security/spec/KeySpec.html" title="interface in java.security.spec">KeySpec</a> keySpec)</code>
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<div class="block">
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从提供的密钥规范（密钥材料）生成一个
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<code>SecretKey</code>对象。
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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>protected abstract <a href="../../java/security/spec/KeySpec.html" title="interface in java.security.spec">KeySpec</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/crypto/SecretKeyFactorySpi.html#engineGetKeySpec-javax.crypto.SecretKey-java.lang.Class-">engineGetKeySpec</a></span>(<a href="../../javax/crypto/SecretKey.html" title="interface in javax.crypto">SecretKey</a> key, <a href="../../java/lang/Class.html" title="class in java.lang">类</a><?> keySpec)</code>
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<div class="block">
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以请求的格式返回给定键对象的规范（关键材料）。
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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>protected abstract <a href="../../javax/crypto/SecretKey.html" title="interface in javax.crypto">SecretKey</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/crypto/SecretKeyFactorySpi.html#engineTranslateKey-javax.crypto.SecretKey-">engineTranslateKey</a></span>(<a href="../../javax/crypto/SecretKey.html" title="interface in javax.crypto">SecretKey</a> key)</code>
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<div class="block">
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将其提供者可能未知或可能不受信任的关键对象转换为该秘密密钥工厂的相应密钥对象。
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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#equals-java.lang.Object-">equals</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#hashCode--">hashCode</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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<ul class="blockList">
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<li class="blockList">
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<!-- ========= CONSTRUCTOR DETAIL ======== -->
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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="SecretKeyFactorySpi--">
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<ul class="blockListLast">
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<li class="blockList"> <h4>SecretKeyFactorySpi</h4> <pre>public SecretKeyFactorySpi()</pre> </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="engineGenerateSecret-java.security.spec.KeySpec-">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>engineGenerateSecret</h4> <pre>protected abstract <a href="../../javax/crypto/SecretKey.html" title="interface in javax.crypto">SecretKey</a> engineGenerateSecret(<a href="../../java/security/spec/KeySpec.html" title="interface in java.security.spec">KeySpec</a> keySpec)
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throws <a href="../../java/security/spec/InvalidKeySpecException.html" title="class in java.security.spec">InvalidKeySpecException</a></pre>
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<div class="block">
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从提供的密钥规范（密钥材料）生成一个
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<code>SecretKey</code>对象。
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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>keySpec</code> - 秘密密钥的规范（密钥材料）
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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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密钥
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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/security/spec/InvalidKeySpecException.html" title="class in java.security.spec">InvalidKeySpecException</a></code> - 如果给定的密钥规范不适合该秘密密钥工厂产生密钥。
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</dd>
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</dl> </li>
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</ul> <a name="engineGetKeySpec-javax.crypto.SecretKey-java.lang.Class-">
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<ul class="blockList">
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<li class="blockList"> <h4>engineGetKeySpec</h4> <pre>protected abstract <a href="../../java/security/spec/KeySpec.html" title="interface in java.security.spec">KeySpec</a> engineGetKeySpec(<a href="../../javax/crypto/SecretKey.html" title="interface in javax.crypto">SecretKey</a> key,
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<a href="../../java/lang/Class.html" title="class in java.lang">类</a><?> keySpec)
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throws <a href="../../java/security/spec/InvalidKeySpecException.html" title="class in java.security.spec">InvalidKeySpecException</a></pre>
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<div class="block">
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以请求的格式返回给定键对象的规范（关键材料）。
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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>key</code> - 关键
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</dd>
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<dd>
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<code>keySpec</code> - 要求退回关键材料的格式
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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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请求格式的基础密钥规范（密钥材料）
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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/security/spec/InvalidKeySpecException.html" title="class in java.security.spec">InvalidKeySpecException</a></code> - 如果所请求的密钥规范对于给定的密钥是不合适的（例如，与
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<code>key</code>和
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<code>keySpec</code>不匹配，或
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<code>key</code>引用加密硬件设备上的密钥，而
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<code>keySpec</code>是基于软件的密钥的规范）或者给定的密钥不能被处理（例如，给定的密钥具有该秘密密钥工厂不支持的算法或格式）。
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</dd>
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</dl> </li>
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</ul> <a name="engineTranslateKey-javax.crypto.SecretKey-">
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<ul class="blockListLast">
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<li class="blockList"> <h4>engineTranslateKey</h4> <pre>protected abstract <a href="../../javax/crypto/SecretKey.html" title="interface in javax.crypto">SecretKey</a> engineTranslateKey(<a href="../../javax/crypto/SecretKey.html" title="interface in javax.crypto">SecretKey</a> key)
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throws <a href="../../java/security/InvalidKeyException.html" title="class in java.security">InvalidKeyException</a></pre>
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<div class="block">
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将其提供者可能未知或可能不受信任的关键对象转换为该秘密密钥工厂的相应密钥对象。
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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>key</code> - 提供者未知或不信任的密钥
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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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翻译密钥
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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/security/InvalidKeyException.html" title="class in java.security">InvalidKeyException</a></code> - if the given key cannot be processed by this secret-key factory.
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</dd>
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