php-doc-en/reference/openssl/configure.xml
Christoph Michael Becker a64f033f94 Fix several issues
* there is no PHP 6, but rather PHP 7
 * OpenSSL doesn't distribute binaries any more
   (we can't get rid of the url.openssl.binaries entity for now,
    because it still might be used in translations)
 * the fact that Windows suppresses file extension in the explorer by
   default is supposed to be well known to PHP developers, and as such
   would be superfluous information
 * the file type reported by Windows depends on the file associations
   which depend highly on the individual system (mentioning SpeedDial
   is confusing)

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@339225 c90b9560-bf6c-de11-be94-00142212c4b1
2016-05-24 13:39:21 +00:00

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<?xml version="1.0" encoding="utf-8"?>
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<section xml:id="openssl.installation" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
&reftitle.install;
<para>
To use PHP's OpenSSL support you must also compile PHP <option
role="configure">--with-openssl[=DIR]</option>.
</para>
<para>
The OpenSSL library also has additional requirements for normal operation at
run-time. Most notably, OpenSSL requires access to a random or pseudo-random
number generator; on most Unix and Unix-like platforms (including Linux),
this means that it must have access to a <literal>/dev/urandom</literal> or
<literal>/dev/random</literal> device.
</para>
<note>
<title>Note to Win32 Users</title>
<para>
&ext.windows.path.dll;
<filename>libeay32.dll</filename>
</para>
<para>
Additionally, if you are planning to use the key generation and certificate
signing functions, you will need to install a valid
<filename>openssl.cnf</filename> file on your system.
As of PHP 4.3.0, we include a sample configuration file
in our win32 binary distributions.
PHP 4.3.x and 4.4.x has the file in the
<filename class="directory">openssl</filename> directory.
PHP 5.x and 7.x has the file in the
<filename class="directory">extras/openssl</filename> directory.
</para>
<para>
PHP will search for the <filename>openssl.cnf</filename> using the
following logic:
<itemizedlist>
<listitem>
<simpara>the <literal>OPENSSL_CONF</literal> environmental variable, if
set, will be used as the path (including filename) of the configuration
file.
</simpara>
</listitem>
<listitem>
<simpara>the <literal>SSLEAY_CONF</literal> environmental variable, if
set, will be used as the path (including filename) of the configuration
file.
</simpara>
</listitem>
<listitem>
<simpara>The file <filename>openssl.cnf</filename> will be assumed to be
found in the default certificate area, as configured at the time that
the openssl DLL was compiled. This is usually means that the default
filename is <filename>c:\usr\local\ssl\openssl.cnf</filename>.
</simpara>
</listitem>
</itemizedlist>
</para>
<simpara>
In your installation, you need to decide whether to install the
configuration file at <filename>c:\usr\local\ssl\openssl.cnf</filename> or
whether to install it someplace else and use environmental variables
(possibly on a per-virtual-host basis) to locate the configuration file.
Note that it is possible to override the default path from the script using
the <parameter>configargs</parameter> of the functions that require a
configuration file.
</simpara>
</note>
</section>
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