php-doc-en/reference/mcrypt/functions/mcrypt-generic.xml
Derick Rethans baf0dab17e - Overhaul of the mcrypt docs, including new examples, corrected entries and
newly documented functions


git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@82020 c90b9560-bf6c-de11-be94-00142212c4b1
2002-05-12 21:00:20 +00:00

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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.3 $ -->
<!-- splitted from ./en/functions/mcrypt.xml, last change in rev 1.7 -->
<refentry id="function.mcrypt-generic">
<refnamediv>
<refname>mcrypt_generic</refname>
<refpurpose>This function encrypts data</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>string</type><methodname>mcrypt_generic</methodname>
<methodparam><type>resource</type><parameter>td</parameter></methodparam>
<methodparam><type>string</type><parameter>data</parameter></methodparam>
</methodsynopsis>
<para>
This function encrypts data. The data is padded with "<literal>\0</literal>"
to make sure the length of the data is n * blocksize. This
function returns the encrypted data. Note that the length
of the returned string can in fact be longer then the input,
due to the padding of the data.
</para>
<para>
The encryption handle should alwayws be initialized with
<function>mcrypt_generic_init</function> with a key and an IV before
calling this function. Where the encryption is done, you should free the
encryption buffers by calling <function>mcrypt_generic_deinit</function>.
See <function>mcrypt_module_open</function> for an example.
</para>
<para>
See also <function>mdecrypt_generic</function>,
<function>mcrypt_generic_init</function> and
<function>mcrypt_generic_deinit</function>.
</para>
</refsect1>
</refentry>
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