<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->

<chapter xml:id="mcrypt.setup" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 &reftitle.setup;

 <!-- {{{ Requirements -->
 <section xml:id="mcrypt.requirements">
  &reftitle.required;
  <para>
   These functions work using <link xlink:href="&url.mcrypt;">mcrypt</link>.
   To use it, download <filename>libmcrypt-x.x.tar.gz</filename> from <link
   xlink:href="&url.mcrypt;">&url.mcrypt;</link> and follow the included
   installation instructions.
  </para>
  <simpara>
  libmcrypt Version 2.5.6 or greater is required.
  </simpara>
  <para>
   Windows users will find the library is the PHP 5.2 Windows binaries release.
   PHP 5.3 Windows binaries uses the static version of the MCrypt library, no
   DLL are needed.
  </para>
  <para>
   If you linked against libmcrypt 2.4.x or higher, the following additional
   block algorithms are supported: CAST, LOKI97, RIJNDAEL, SAFERPLUS,
   SERPENT and the following stream ciphers: ENIGMA (crypt), PANAMA, RC4 and
   WAKE. With libmcrypt 2.4.x or higher another cipher mode is also
   available; nOFB.
  </para>
 </section>
 <!-- }}} -->

 <!-- {{{ Installation -->
 &reference.mcrypt.configure;
 <!-- }}} -->

 <!-- {{{ Configuration -->
 &reference.mcrypt.ini;
 <!-- }}} -->

 <!-- {{{ Resources -->
 <section xml:id="mcrypt.resources">
  &reftitle.resources;
  <para>
   <function>mcrypt_module_open</function> returns an encryption descriptor.
  </para>
 </section>
 <!-- }}} -->

</chapter>

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