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535 lines
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<div class="header">
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<div class="subTitle">
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javax.crypto
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</div>
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<h2 class="title" title="Class EncryptedPrivateKeyInfo">Class EncryptedPrivateKeyInfo</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.EncryptedPrivateKeyInfo</li>
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</ul> </li>
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</ul>
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<div class="description">
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<hr/> <br/> <pre>public class <span class="typeNameLabel">EncryptedPrivateKeyInfo</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>该类实现了PKCS＃8中定义的<code>EncryptedPrivateKeyInfo</code>类型。</span>
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<p> <span>其ASN.1定义如下：</span> </p>
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<pre> <span>EncryptedPrivateKeyInfo ::= SEQUENCE {
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encryptionAlgorithm AlgorithmIdentifier,
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encryptedData OCTET STRING }
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AlgorithmIdentifier ::= SEQUENCE {
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algorithm OBJECT IDENTIFIER,
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parameters ANY DEFINED BY algorithm OPTIONAL }</span> </pre>
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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="../../java/security/spec/PKCS8EncodedKeySpec.html" title="java.security.spec中的类"><code>PKCS8EncodedKeySpec</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/EncryptedPrivateKeyInfo.html#EncryptedPrivateKeyInfo-java.security.AlgorithmParameters-byte:A-">EncryptedPrivateKeyInfo</a></span>(<a href="../../java/security/AlgorithmParameters.html" title="class in java.security">AlgorithmParameters</a> algParams, byte[] encryptedData)</code>
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<div class="block">
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构造一个
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<code>EncryptedPrivateKeyInfo</code>从加密算法参数和加密数据。
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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/EncryptedPrivateKeyInfo.html#EncryptedPrivateKeyInfo-byte:A-">EncryptedPrivateKeyInfo</a></span>(byte[] encoded)</code>
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<div class="block">
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从其ASN.1编码构造（即解析）
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<code>EncryptedPrivateKeyInfo</code> 。
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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/EncryptedPrivateKeyInfo.html#EncryptedPrivateKeyInfo-java.lang.String-byte:A-">EncryptedPrivateKeyInfo</a></span>(<a href="../../java/lang/String.html" title="class in java.lang">String</a> algName, byte[] encryptedData)</code>
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<div class="block">
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构造一个
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<code>EncryptedPrivateKeyInfo</code>从加密算法的名称和加密的数据。
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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><a href="../../java/lang/String.html" title="class in java.lang">String</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/crypto/EncryptedPrivateKeyInfo.html#getAlgName--">getAlgName</a></span>()</code>
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<div class="block">
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返回加密算法。
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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><a href="../../java/security/AlgorithmParameters.html" title="class in java.security">AlgorithmParameters</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/crypto/EncryptedPrivateKeyInfo.html#getAlgParameters--">getAlgParameters</a></span>()</code>
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<div class="block">
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返回加密算法使用的算法参数。
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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/EncryptedPrivateKeyInfo.html#getEncoded--">getEncoded</a></span>()</code>
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<div class="block">
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返回此对象的ASN.1编码。
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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>byte[]</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/crypto/EncryptedPrivateKeyInfo.html#getEncryptedData--">getEncryptedData</a></span>()</code>
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<div class="block">
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返回加密数据。
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</div> </td>
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</tr>
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<tr class="altColor" id="i4">
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<td class="colFirst"><code><a href="../../java/security/spec/PKCS8EncodedKeySpec.html" title="class in java.security.spec">PKCS8EncodedKeySpec</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/crypto/EncryptedPrivateKeyInfo.html#getKeySpec-javax.crypto.Cipher-">getKeySpec</a></span>(<a href="../../javax/crypto/Cipher.html" title="class in javax.crypto">Cipher</a> cipher)</code>
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<div class="block">
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从加密数据中提取封闭的PKCS8EncodedKeySpec对象并返回。
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</div> </td>
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</tr>
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<tr class="rowColor" id="i5">
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<td class="colFirst"><code><a href="../../java/security/spec/PKCS8EncodedKeySpec.html" title="class in java.security.spec">PKCS8EncodedKeySpec</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/crypto/EncryptedPrivateKeyInfo.html#getKeySpec-java.security.Key-">getKeySpec</a></span>(<a href="../../java/security/Key.html" title="interface in java.security">Key</a> decryptKey)</code>
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<div class="block">
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从加密数据中提取封闭的PKCS8EncodedKeySpec对象并返回。
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</div> </td>
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</tr>
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<tr class="altColor" id="i6">
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<td class="colFirst"><code><a href="../../java/security/spec/PKCS8EncodedKeySpec.html" title="class in java.security.spec">PKCS8EncodedKeySpec</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/crypto/EncryptedPrivateKeyInfo.html#getKeySpec-java.security.Key-java.security.Provider-">getKeySpec</a></span>(<a href="../../java/security/Key.html" title="interface in java.security">Key</a> decryptKey, <a href="../../java/security/Provider.html" title="class in java.security">Provider</a> provider)</code>
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<div class="block">
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从加密数据中提取封闭的PKCS8EncodedKeySpec对象并返回。
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</div> </td>
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</tr>
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<tr class="rowColor" id="i7">
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<td class="colFirst"><code><a href="../../java/security/spec/PKCS8EncodedKeySpec.html" title="class in java.security.spec">PKCS8EncodedKeySpec</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/crypto/EncryptedPrivateKeyInfo.html#getKeySpec-java.security.Key-java.lang.String-">getKeySpec</a></span>(<a href="../../java/security/Key.html" title="interface in java.security">Key</a> decryptKey, <a href="../../java/lang/String.html" title="class in java.lang">String</a> providerName)</code>
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<div class="block">
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从加密数据中提取封闭的PKCS8EncodedKeySpec对象并返回。
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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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<!-- ========= 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="EncryptedPrivateKeyInfo-byte:A-">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>EncryptedPrivateKeyInfo</h4> <pre>public EncryptedPrivateKeyInfo(byte[] encoded)
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throws <a href="../../java/io/IOException.html" title="class in java.io">IOException</a></pre>
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<div class="block">
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从其ASN.1编码构造（即解析）
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<code>EncryptedPrivateKeyInfo</code> 。
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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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<span><code>encoded</code> - 该对象的ASN.1编码。</span>
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<span>复制数组的内容以防止后续修改。</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/NullPointerException.html" title="class in java.lang">NullPointerException</a></code> - 如果
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<code>encoded</code>为空。
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</dd>
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<dd>
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<code><a href="../../java/io/IOException.html" title="class in java.io">IOException</a></code> - 如果在解析ASN.1编码时发生错误。
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</dd>
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</dl> </li>
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</ul> <a name="EncryptedPrivateKeyInfo-java.lang.String-byte:A-">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>EncryptedPrivateKeyInfo</h4> <pre>public EncryptedPrivateKeyInfo(<a href="../../java/lang/String.html" title="class in java.lang">String</a> algName,
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byte[] encryptedData)
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throws <a href="../../java/security/NoSuchAlgorithmException.html" title="class in java.security">NoSuchAlgorithmException</a></pre>
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<div class="block">
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<span>构造一个<code>EncryptedPrivateKeyInfo</code>从加密算法的名称和加密的数据。</span>
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<p> <span>注意：该构造函数将使用null作为算法参数的值。</span> <span>如果加密算法的参数值不为空，则应使用不同的构造函数，例如EncryptedPrivateKeyInfo（AlgorithmParameters，byte []）。</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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<span><code>algName</code> - 加密算法名称。</span>
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<span>有关标准密码算法名称的信息，请参阅<a href="../../../technotes/guides/security/crypto/CryptoSpec.html#AppA">Java Cryptography Architecture Reference Guide</a>中的附录A.</span>
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</dd>
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<dd>
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<span><code>encryptedData</code> - 加密数据。</span>
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<span>复制<code>encrypedData</code>的内容以防止在构建此对象时进行后续修改。</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/NullPointerException.html" title="class in java.lang">NullPointerException</a></code> - 如果
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<code>algName</code>或
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<code>encryptedData</code>为空。
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</dd>
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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>encryptedData</code>为空，即0长度。
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</dd>
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<dd>
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<code><a href="../../java/security/NoSuchAlgorithmException.html" title="class in java.security">NoSuchAlgorithmException</a></code> - 如果不支持指定的algName。
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</dd>
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</dl> </li>
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</ul> <a name="EncryptedPrivateKeyInfo-java.security.AlgorithmParameters-byte:A-">
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<ul class="blockListLast">
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<li class="blockList"> <h4>EncryptedPrivateKeyInfo</h4> <pre>public EncryptedPrivateKeyInfo(<a href="../../java/security/AlgorithmParameters.html" title="class in java.security">AlgorithmParameters</a> algParams,
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byte[] encryptedData)
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throws <a href="../../java/security/NoSuchAlgorithmException.html" title="class in java.security">NoSuchAlgorithmException</a></pre>
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<div class="block">
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构造一个
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<code>EncryptedPrivateKeyInfo</code>从加密算法参数和加密数据。
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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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<span><code>algParams</code> - 加密算法的算法参数。</span>
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<span><code>algParams.getEncoded()</code>应该返回<code>EncryptedPrivateKeyInfo</code>类型的<code>AlgorithmIdentifer</code>组件的<code>parameters</code>字段的ASN.1编码字节。</span>
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</dd>
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<dd>
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<span><code>encryptedData</code> - 加密数据。</span>
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<span>复制<code>encrypedData</code>的内容以防止在构建此对象时进行后续修改。</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/NullPointerException.html" title="class in java.lang">NullPointerException</a></code> - 如果
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<code>algParams</code>或
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<code>encryptedData</code>为空。
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</dd>
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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>encryptedData</code>为空，即0长度。
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</dd>
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<dd>
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<code><a href="../../java/security/NoSuchAlgorithmException.html" title="class in java.security">NoSuchAlgorithmException</a></code> - 如果不支持指定的指定的algName
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<code>algParams</code> algParams参数。
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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="getAlgName--">
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<ul class="blockList">
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<li class="blockList"> <h4>getAlgName</h4> <pre>public <a href="../../java/lang/String.html" title="class in java.lang">String</a> getAlgName()</pre>
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<div class="block">
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<span>返回加密算法。</span>
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<p> <span>注意：如果此类映射可用，则在构造函数中返回标准名称而不是指定的名称。</span> <span>有关标准密码算法名称的信息，请参阅<a href="../../../technotes/guides/security/crypto/CryptoSpec.html#AppA">Java Cryptography Architecture Reference Guide</a>中的附录A.</span> </p>
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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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加密算法名称。
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</dd>
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</dl> </li>
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</ul> <a name="getAlgParameters--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>getAlgParameters</h4> <pre>public <a href="../../java/security/AlgorithmParameters.html" title="class in java.security">AlgorithmParameters</a> getAlgParameters()</pre>
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<div class="block">
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返回加密算法使用的算法参数。
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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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算法参数。
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</dd>
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</dl> </li>
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</ul> <a name="getEncryptedData--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>getEncryptedData</h4> <pre>public byte[] getEncryptedData()</pre>
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<div class="block">
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返回加密数据。
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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>加密数据。</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="getKeySpec-javax.crypto.Cipher-">
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<ul class="blockList">
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<li class="blockList"> <h4>getKeySpec</h4> <pre>public <a href="../../java/security/spec/PKCS8EncodedKeySpec.html" title="class in java.security.spec">PKCS8EncodedKeySpec</a> getKeySpec(<a href="../../javax/crypto/Cipher.html" title="class in javax.crypto">Cipher</a> cipher)
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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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<span>从加密数据中提取封闭的PKCS8EncodedKeySpec对象并返回。</span>
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<br/>
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<span>注意：为了成功检索附带的PKCS8EncodedKeySpec对象， <code>cipher</code>需要初始化为Cipher.DECRYPT_MODE或Cipher.UNWRAP_MODE，具有与生成加密数据相同的密钥和参数。</span>
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</div>
|
||
<dl>
|
||
<dt>
|
||
<span class="paramLabel">参数</span>
|
||
</dt>
|
||
<dd>
|
||
<code>cipher</code> - 将用于解密加密数据的初始化密码对象。
|
||
</dd>
|
||
<dt>
|
||
<span class="returnLabel">结果</span>
|
||
</dt>
|
||
<dd>
|
||
PKCS8EncodedKeySpec对象。
|
||
</dd>
|
||
<dt>
|
||
<span class="throwsLabel">异常</span>
|
||
</dt>
|
||
<dd>
|
||
<code><a href="../../java/lang/NullPointerException.html" title="class in java.lang">NullPointerException</a></code> - 如果
|
||
<code>cipher</code>为空。
|
||
</dd>
|
||
<dd>
|
||
<code><a href="../../java/security/spec/InvalidKeySpecException.html" title="class in java.security.spec">InvalidKeySpecException</a></code> - 如果给定的密码对于加密数据不合适或加密数据被破坏并且不能被解密。
|
||
</dd>
|
||
</dl> </li>
|
||
</ul> <a name="getKeySpec-java.security.Key-">
|
||
<!-- --> </a>
|
||
<ul class="blockList">
|
||
<li class="blockList"> <h4>getKeySpec</h4> <pre>public <a href="../../java/security/spec/PKCS8EncodedKeySpec.html" title="class in java.security.spec">PKCS8EncodedKeySpec</a> getKeySpec(<a href="../../java/security/Key.html" title="interface in java.security">Key</a> decryptKey)
|
||
throws <a href="../../java/security/NoSuchAlgorithmException.html" title="class in java.security">NoSuchAlgorithmException</a>,
|
||
<a href="../../java/security/InvalidKeyException.html" title="class in java.security">InvalidKeyException</a></pre>
|
||
<div class="block">
|
||
从加密数据中提取封闭的PKCS8EncodedKeySpec对象并返回。
|
||
</div>
|
||
<dl>
|
||
<dt>
|
||
<span class="paramLabel">参数</span>
|
||
</dt>
|
||
<dd>
|
||
<code>decryptKey</code> - 用于解密加密数据的密钥。
|
||
</dd>
|
||
<dt>
|
||
<span class="returnLabel">结果</span>
|
||
</dt>
|
||
<dd>
|
||
PKCS8EncodedKeySpec对象。
|
||
</dd>
|
||
<dt>
|
||
<span class="throwsLabel">异常</span>
|
||
</dt>
|
||
<dd>
|
||
<code><a href="../../java/lang/NullPointerException.html" title="class in java.lang">NullPointerException</a></code> - 如果
|
||
<code>decryptKey</code>为空。
|
||
</dd>
|
||
<dd>
|
||
<code><a href="../../java/security/NoSuchAlgorithmException.html" title="class in java.security">NoSuchAlgorithmException</a></code> - 如果找不到适当的密码来解密加密数据。
|
||
</dd>
|
||
<dd>
|
||
<code><a href="../../java/security/InvalidKeyException.html" title="class in java.security">InvalidKeyException</a></code> - 如果
|
||
<code>decryptKey</code>不能用于解密加密数据或解密结果不是有效的PKCS8KeySpec。
|
||
</dd>
|
||
<dt>
|
||
<span class="simpleTagLabel">从以下版本开始：</span>
|
||
</dt>
|
||
<dd>
|
||
1.5
|
||
</dd>
|
||
</dl> </li>
|
||
</ul> <a name="getKeySpec-java.security.Key-java.lang.String-">
|
||
<!-- --> </a>
|
||
<ul class="blockList">
|
||
<li class="blockList"> <h4>getKeySpec</h4> <pre>public <a href="../../java/security/spec/PKCS8EncodedKeySpec.html" title="class in java.security.spec">PKCS8EncodedKeySpec</a> getKeySpec(<a href="../../java/security/Key.html" title="interface in java.security">Key</a> decryptKey,
|
||
<a href="../../java/lang/String.html" title="class in java.lang">String</a> providerName)
|
||
throws <a href="../../java/security/NoSuchProviderException.html" title="class in java.security">NoSuchProviderException</a>,
|
||
<a href="../../java/security/NoSuchAlgorithmException.html" title="class in java.security">NoSuchAlgorithmException</a>,
|
||
<a href="../../java/security/InvalidKeyException.html" title="class in java.security">InvalidKeyException</a></pre>
|
||
<div class="block">
|
||
从加密数据中提取封闭的PKCS8EncodedKeySpec对象并返回。
|
||
</div>
|
||
<dl>
|
||
<dt>
|
||
<span class="paramLabel">参数</span>
|
||
</dt>
|
||
<dd>
|
||
<code>decryptKey</code> - 用于解密加密数据的密钥。
|
||
</dd>
|
||
<dd>
|
||
<code>providerName</code> - 将使用Cipher实现的提供程序的名称。
|
||
</dd>
|
||
<dt>
|
||
<span class="returnLabel">结果</span>
|
||
</dt>
|
||
<dd>
|
||
PKCS8EncodedKeySpec对象。
|
||
</dd>
|
||
<dt>
|
||
<span class="throwsLabel">异常</span>
|
||
</dt>
|
||
<dd>
|
||
<code><a href="../../java/lang/NullPointerException.html" title="class in java.lang">NullPointerException</a></code> - 如果
|
||
<code>decryptKey</code>或
|
||
<code>providerName</code>为空。
|
||
</dd>
|
||
<dd>
|
||
<code><a href="../../java/security/NoSuchProviderException.html" title="class in java.security">NoSuchProviderException</a></code> - 如果没有提供者
|
||
<code>providerName</code>被注册。
|
||
</dd>
|
||
<dd>
|
||
<code><a href="../../java/security/NoSuchAlgorithmException.html" title="class in java.security">NoSuchAlgorithmException</a></code> - 如果找不到适当的密码来解密加密数据。
|
||
</dd>
|
||
<dd>
|
||
<code><a href="../../java/security/InvalidKeyException.html" title="class in java.security">InvalidKeyException</a></code> - 如果
|
||
<code>decryptKey</code>不能用于解密加密数据或解密结果不是有效的PKCS8KeySpec。
|
||
</dd>
|
||
<dt>
|
||
<span class="simpleTagLabel">从以下版本开始：</span>
|
||
</dt>
|
||
<dd>
|
||
1.5
|
||
</dd>
|
||
</dl> </li>
|
||
</ul> <a name="getKeySpec-java.security.Key-java.security.Provider-">
|
||
<!-- --> </a>
|
||
<ul class="blockList">
|
||
<li class="blockList"> <h4>getKeySpec</h4> <pre>public <a href="../../java/security/spec/PKCS8EncodedKeySpec.html" title="class in java.security.spec">PKCS8EncodedKeySpec</a> getKeySpec(<a href="../../java/security/Key.html" title="interface in java.security">Key</a> decryptKey,
|
||
<a href="../../java/security/Provider.html" title="class in java.security">Provider</a> provider)
|
||
throws <a href="../../java/security/NoSuchAlgorithmException.html" title="class in java.security">NoSuchAlgorithmException</a>,
|
||
<a href="../../java/security/InvalidKeyException.html" title="class in java.security">InvalidKeyException</a></pre>
|
||
<div class="block">
|
||
从加密数据中提取封闭的PKCS8EncodedKeySpec对象并返回。
|
||
</div>
|
||
<dl>
|
||
<dt>
|
||
<span class="paramLabel">参数</span>
|
||
</dt>
|
||
<dd>
|
||
<code>decryptKey</code> - 用于解密加密数据的密钥。
|
||
</dd>
|
||
<dd>
|
||
<code>provider</code> - 将使用Cipher实现的提供者的名称。
|
||
</dd>
|
||
<dt>
|
||
<span class="returnLabel">结果</span>
|
||
</dt>
|
||
<dd>
|
||
PKCS8EncodedKeySpec对象。
|
||
</dd>
|
||
<dt>
|
||
<span class="throwsLabel">异常</span>
|
||
</dt>
|
||
<dd>
|
||
<code><a href="../../java/lang/NullPointerException.html" title="class in java.lang">NullPointerException</a></code> - 如果
|
||
<code>decryptKey</code>或
|
||
<code>provider</code>为空。
|
||
</dd>
|
||
<dd>
|
||
<code><a href="../../java/security/NoSuchAlgorithmException.html" title="class in java.security">NoSuchAlgorithmException</a></code> -如果无法找到合适的密码在对加密数据
|
||
<code>provider</code> 。
|
||
</dd>
|
||
<dd>
|
||
<code><a href="../../java/security/InvalidKeyException.html" title="class in java.security">InvalidKeyException</a></code> - 如果
|
||
<code>decryptKey</code>不能用于解密加密数据或解密结果不是有效的PKCS8KeySpec。
|
||
</dd>
|
||
<dt>
|
||
<span class="simpleTagLabel">从以下版本开始：</span>
|
||
</dt>
|
||
<dd>
|
||
1.5
|
||
</dd>
|
||
</dl> </li>
|
||
</ul> <a name="getEncoded--">
|
||
<!-- --> </a>
|
||
<ul class="blockListLast">
|
||
<li class="blockList"> <h4>getEncoded</h4> <pre>public byte[] getEncoded()
|
||
throws <a href="../../java/io/IOException.html" title="class in java.io">IOException</a></pre>
|
||
<div class="block">
|
||
返回此对象的ASN.1编码。
|
||
</div>
|
||
<dl>
|
||
<dt>
|
||
<span class="returnLabel">结果</span>
|
||
</dt>
|
||
<dd>
|
||
<span>ASN.1编码。</span>
|
||
<span>每次调用此方法时都会返回一个新数组。</span>
|
||
</dd>
|
||
<dt>
|
||
<span class="throwsLabel">异常</span>
|
||
</dt>
|
||
<dd>
|
||
<code><a href="../../java/io/IOException.html" title="class in java.io">IOException</a></code> - 如果构建其ASN.1编码时发生错误。
|
||
</dd>
|
||
</dl> </li>
|
||
</ul> </li>
|
||
</ul> </li>
|
||
</ul>
|
||
</div>
|
||
</div> |