php-doc-en/reference/openssl/functions/openssl-pkey-get-details.xml

<?xml version="1.0" encoding="utf-8"?>
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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.openssl-pkey-get-details">
 <refnamediv>
  <refname>openssl_pkey_get_details</refname>
  <refpurpose>Returns an array with the key details</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>array</type><methodname>openssl_pkey_get_details</methodname>
   <methodparam><type>resource</type><parameter>key</parameter></methodparam>
  </methodsynopsis>
  <para>
   This function returns the key details (bits, key, type).
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>key</parameter></term>
     <listitem>
      <para>
       Resource holding the key.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns an array with the key details in success or &false; in failure.
   Returned array has indexes <literal>bits</literal> (number of bits),
   <literal>key</literal> (string representation of the public key) and
   <literal>type</literal> (type of the key which is one of
   <constant>OPENSSL_KEYTYPE_RSA</constant>,
   <constant>OPENSSL_KEYTYPE_DSA</constant>,
   <constant>OPENSSL_KEYTYPE_DH</constant>,
   <constant>OPENSSL_KEYTYPE_EC</constant> or -1 meaning unknown).
  </para>
  <para>
   Depending on the key type used, additional details may be returned. Note that 
   some elements may not always be available.
  </para>
  <itemizedlist>
   <listitem>
    <simpara>
     <constant>OPENSSL_KEYTYPE_RSA</constant>, an additional array key named <literal>"rsa"</literal>, 
     containing the key data is returned.
    </simpara>
     <informaltable>
      <tgroup cols="2">
       <thead>
        <row>
         <entry>Key</entry>
         <entry>&Description;</entry>
        </row>
       </thead>
       <tbody>
        <row>
         <entry><literal>"n"</literal></entry>
         <entry></entry>
        </row>
        <row>
         <entry><literal>"e"</literal></entry>
         <entry></entry>
        </row>
        <row>
         <entry><literal>"d"</literal></entry>
         <entry></entry>
        </row>
        <row>
         <entry><literal>"p"</literal></entry>
         <entry></entry>
        </row>
        <row>
         <entry><literal>"q"</literal></entry>
         <entry></entry>
        </row>
        <row>
         <entry><literal>"dmp1"</literal></entry>
         <entry></entry>
        </row>
        <row>
         <entry><literal>"dmq1"</literal></entry>
         <entry></entry>
        </row>
        <row>
         <entry><literal>"iqmp"</literal></entry>
         <entry></entry>
        </row>
       </tbody>
      </tgroup>
     </informaltable>
   </listitem>
   <listitem>
    <simpara>
     <constant>OPENSSL_KEYTYPE_DSA</constant>, an additional array key named <literal>"dsa"</literal>, 
     containing the key data is returned.
    </simpara>
     <informaltable>
      <tgroup cols="2">
       <thead>
        <row>
         <entry>Key</entry>
         <entry>&Description;</entry>
        </row>
       </thead>
       <tbody>
        <row>
         <entry><literal>"p"</literal></entry>
         <entry></entry>
        </row>
        <row>
         <entry><literal>"q"</literal></entry>
         <entry></entry>
        </row>
        <row>
         <entry><literal>"g"</literal></entry>
         <entry></entry>
        </row>
        <row>
         <entry><literal>"priv_key"</literal></entry>
         <entry></entry>
        </row>
        <row>
         <entry><literal>"pub_key"</literal></entry>
         <entry></entry>
        </row>
       </tbody>
      </tgroup>
     </informaltable>
   </listitem>
   <listitem>
    <simpara>
     <constant>OPENSSL_KEYTYPE_DH</constant>, an additional array key named <literal>"dh"</literal>, 
     containing the key data is returned.
    </simpara>
     <informaltable>
      <tgroup cols="2">
       <thead>
        <row>
         <entry>Key</entry>
         <entry>&Description;</entry>
        </row>
       </thead>
       <tbody>
        <row>
         <entry><literal>"p"</literal></entry>
         <entry></entry>
        </row>
        <row>
         <entry><literal>"g"</literal></entry>
         <entry></entry>
        </row>
        <row>
         <entry><literal>"priv_key"</literal></entry>
         <entry></entry>
        </row>
        <row>
         <entry><literal>"pub_key"</literal></entry>
         <entry></entry>
        </row>
       </tbody>
      </tgroup>
     </informaltable>
   </listitem>
  </itemizedlist>
 </refsect1>

</refentry>

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