<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="phar.setsignaturealgorithm" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>Phar::setSignatureAlgorithm</refname>
  <refpurpose>Set the signature algorithm for a phar and apply it</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis role="Phar">
   <modifier>public</modifier> <type>void</type><methodname>Phar::setSignatureAlgorithm</methodname>
   <methodparam><type>int</type><parameter>algo</parameter></methodparam>
   <methodparam choice="opt"><type class="union"><type>string</type><type>null</type></type><parameter>privateKey</parameter><initializer>&null;</initializer></methodparam>
  </methodsynopsis>
  &phar.write;

  <para>
   set the signature algorithm for a phar and apply it.  The
   signature algorithm must be one of <literal>Phar::MD5</literal>,
   <literal>Phar::SHA1</literal>, <literal>Phar::SHA256</literal>,
   <literal>Phar::SHA512</literal>, or <literal>Phar::OPENSSL</literal>.
  </para>
  <para>
   Note that all executable phar archives have a signature created
   automatically, <literal>SHA1</literal> by default.  data tar- or zip-based archives
   (archives created with the <classname>PharData</classname> class) must have
   their signature created and set explicitly via
   <function>Phar::setSignatureAlgorithm</function>.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>algo</parameter></term>
     <listitem>
      <para>
       One of <literal>Phar::MD5</literal>,
   <literal>Phar::SHA1</literal>, <literal>Phar::SHA256</literal>,
   <literal>Phar::SHA512</literal>, or <literal>Phar::OPENSSL</literal>
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>privateKey</parameter></term>
     <listitem>
      <para>
       The contents of an OpenSSL private key, as extracted from a certificate or
       OpenSSL key file:
       <programlisting role="php">
        <![CDATA[
<?php
$private = openssl_get_privatekey(file_get_contents('private.pem'));
$pkey = '';
openssl_pkey_export($private, $pkey);
$p->setSignatureAlgorithm(Phar::OPENSSL, $pkey);
?>
        ]]>
       </programlisting>
       See <link linkend="phar.using">phar introduction</link> for instructions on
       naming and placement of the public key file.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>

 </refsect1>

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

 <refsect1 role="errors">
  &reftitle.errors;
  <para>
   Throws <classname>UnexpectedValueException</classname> for many errors,
   and a <classname>PharException</classname>
   if any problems occur flushing changes to disk.
  </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>privateKey</parameter> is now nullable.
      </entry>
     </row>
    </tbody>
   </tgroup>
  </informaltable>
 </refsect1>
 
 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>Phar::getSupportedSignatures</function></member>
    <member><function>Phar::getSignature</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->
