openssl-public-decrypt.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<!-- EN-Revision: 7da0f9995a1a6928523f8d910898e79d88f45d5f Maintainer: duanxiaoqiang Status: ready -->
<!-- CREDITS: mowangjuanzi, Luffy -->
<refentry xml:id="function.openssl-public-decrypt" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>openssl_public_decrypt</refname>
  <refpurpose>使用公钥解密数据</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>bool</type><methodname>openssl_public_decrypt</methodname>
   <methodparam><type>string</type><parameter>data</parameter></methodparam>
   <methodparam><modifier role="attribute">#[\SensitiveParameter]</modifier><type>string</type><parameter role="reference">decrypted_data</parameter></methodparam>
   <methodparam><type class="union"><type>OpenSSLAsymmetricKey</type><type>OpenSSLCertificate</type><type>array</type><type>string</type></type><parameter>public_key</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>padding</parameter><initializer><constant>OPENSSL_PKCS1_PADDING</constant></initializer></methodparam>
  </methodsynopsis>
  <para>
   <function>openssl_public_decrypt</function> 解密先前由 <function>openssl_private_encrypt</function> 加密的数据 <parameter>data</parameter> 并且将结果保存至变量 <parameter>decrypted_data</parameter>中。  
  </para>
  <para>
   你可以用该函数来校验消息是否是私钥拥有者写的。
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>data</parameter></term>
     <listitem>
      <para>
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>decrypted_data</parameter></term>
     <listitem>
      <para>
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>public_key</parameter></term>
     <listitem>
      <para>
       <parameter>private_key</parameter> 必须是与用于加密数据的公钥对应的私钥。
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>padding</parameter></term>
     <listitem>
      <para>
       <parameter>padding</parameter> 可以是如下至
       <constant>OPENSSL_PKCS1_PADDING</constant>,
       <constant>OPENSSL_NO_PADDING</constant>.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   &return.success;
  </para>
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <informaltable>
   <tgroup cols="2">
    <thead>
     <row>
      <entry>&Version;</entry>
      <entry>&Description;</entry>
     </row>
    </thead>
    <tbody>
     <row>
      <entry>8.0.0</entry>
      <entry>
       <parameter>public_key</parameter> 现在接受 <classname>OpenSSLAsymmetricKey</classname> 或 <classname>OpenSSLCertificate</classname>
       实例。之前接受类型 <literal>OpenSSL key</literal> 或 <literal>OpenSSL X.509</literal> 的 &resource;。
      </entry>
     </row>
    </tbody>
   </tgroup>
  </informaltable>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>openssl_private_encrypt</function></member>
    <member><function>openssl_private_decrypt</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>
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