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docs/php/openssl_spki_export_challenge.html
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docs/php/openssl_spki_export_challenge.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>导出与签名公钥和挑战相关的挑战字符串</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.openssl-spki-export-challenge" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">openssl_spki_export_challenge</h1>
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<p class="verinfo">(PHP 5 >= 5.6.0, PHP 7)</p><p class="refpurpose"><span class="refname">openssl_spki_export_challenge</span> — <span class="dc-title">导出与签名公钥和挑战相关的挑战字符串</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.openssl-spki-export-challenge-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>openssl_spki_export_challenge</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter reference">&$spkac</code></span>
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) : <span class="type">string</span></div>
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<p class="para rdfs-comment">
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导出与签名公钥和挑战相关的挑战字符串
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.openssl-spki-export-challenge-parameters">
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<h3 class="title">参数</h3>
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<dl>
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<dt>
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<code class="parameter">spkac</code></dt>
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<dd>
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<p class="para">
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包含一个可用的签名公钥和挑战
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</p>
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</dd>
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</dl>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.openssl-spki-export-challenge-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功，返回相关的挑战字符串，失败返回NULL.
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</p>
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</div>
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<div class="refsect1 errors" id="refsect1-function.openssl-spki-export-challenge-errors">
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<h3 class="title">错误／异常</h3>
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<p class="para">
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如果 <code class="parameter">spkac</code> 传递的是一个不可用的参数，则抛出一个 <strong><code>E_WARNING</code></strong> 级的错误。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.openssl-spki-export-challenge-examples">
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<h3 class="title">范例</h3>
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<div class="example" id="example-947">
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<p><strong>Example #1 <span class="function"><strong>openssl_spki_export_challenge()</strong></span> 范例：</strong></p>
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<div class="example-contents"><p>
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成功，提取相关联的挑战字符串，失败则返回 NULL.
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</p></div>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />$pkey </span><span style="color: #007700">= </span><span style="color: #0000BB">openssl_pkey_new</span><span style="color: #007700">(</span><span style="color: #DD0000">'secret password'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$spkac </span><span style="color: #007700">= </span><span style="color: #0000BB">openssl_spki_new</span><span style="color: #007700">(</span><span style="color: #0000BB">$pkey</span><span style="color: #007700">, </span><span style="color: #DD0000">'challenge string'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$challenge </span><span style="color: #007700">= </span><span style="color: #0000BB">openssl_spki_export_challenge</span><span style="color: #007700">(</span><span style="color: #0000BB">preg_replace</span><span style="color: #007700">(</span><span style="color: #DD0000">'/SPKAC=/'</span><span style="color: #007700">, </span><span style="color: #DD0000">''</span><span style="color: #007700">, </span><span style="color: #0000BB">$spkac</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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<div class="example" id="example-948">
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<p><strong>Example #2 <span class="function"><strong>openssl_spki_export_challenge()</strong></span> 来自 <keygen> 元素的范例：</strong></p>
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<div class="example-contents"><p>
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从 <keygen> 元素中解压相关联的挑战字符串。
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</p></div>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />$challenge </span><span style="color: #007700">= </span><span style="color: #0000BB">openssl_spki_export_challenge</span><span style="color: #007700">(</span><span style="color: #0000BB">preg_replace</span><span style="color: #007700">(</span><span style="color: #DD0000">'/SPKAC=/'</span><span style="color: #007700">, </span><span style="color: #DD0000">''</span><span style="color: #007700">, </span><span style="color: #0000BB">$_POST</span><span style="color: #007700">[</span><span style="color: #DD0000">'spkac'</span><span style="color: #007700">]));<br /></span><span style="color: #0000BB">?><br /></span><keygen name="spkac" challenge="challenge string" keytype="RSA"></span>
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</pre></div>
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</div>
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</div>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.openssl-spki-export-challenge-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="openssl_spki_new.html" class="function" rel="rdfs-seeAlso">openssl_spki_new()</a> - 生成一个新的签名公钥和挑战</span></li>
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<li class="member"><span class="function"><a href="openssl_spki_verify.html" class="function" rel="rdfs-seeAlso">openssl_spki_verify()</a> - 验证签名公钥和挑战。</span></li>
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<li class="member"><span class="function"><a href="openssl_spki_export.html" class="function" rel="rdfs-seeAlso">openssl_spki_export()</a> - 通过签名公钥和挑战导出一个可用的PEM格式的公钥</span></li>
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<li class="member"><span class="function"><strong>openssl_md_method()</strong></span></li>
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<li class="member"><span class="function"><a href="openssl_csr_new.html" class="function" rel="rdfs-seeAlso">openssl_csr_new()</a> - 生成一个 CSR</span></li>
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<li class="member"><span class="function"><a href="openssl_csr_sign.html" class="function" rel="rdfs-seeAlso">openssl_csr_sign()</a> - 用另一个证书签署 CSR (或者本身) 并且生成一个证书</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html>
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