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https://github.com/sigmasternchen/php-doc-en
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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@297028 c90b9560-bf6c-de11-be94-00142212c4b1
122 lines
3.1 KiB
XML
122 lines
3.1 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<refentry xml:id="function.mcrypt-get-block-size" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>mcrypt_get_block_size</refname>
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<refpurpose>Get the block size of the specified cipher</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>int</type><methodname>mcrypt_get_block_size</methodname>
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<methodparam><type>int</type><parameter>cipher</parameter></methodparam>
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</methodsynopsis>
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<methodsynopsis>
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<type>int</type><methodname>mcrypt_get_block_size</methodname>
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<methodparam><type>string</type><parameter>cipher</parameter></methodparam>
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<methodparam><type>string</type><parameter>module</parameter></methodparam>
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</methodsynopsis>
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<para>
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The first prototype is when linked against libmcrypt 2.2.x, the
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second when linked against libmcrypt 2.4.x or 2.5.x.
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</para>
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<para>
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<function>mcrypt_get_block_size</function> is used to get the
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size of a block of the specified <parameter>cipher</parameter> (in
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combination with an encryption mode).
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</para>
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<para>
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It is more useful to use the <function>mcrypt_enc_get_block_size</function>
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function as this uses the resource returned by
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<function>mcrypt_module_open</function>.
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</para>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>cipher</parameter></term>
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<listitem>
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<para>
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One of the <literal>MCRYPT_ciphername</literal> constants or the name
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of the algorithm as string.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>module</parameter></term>
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<listitem>
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<para>
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The module.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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Gets the block size, as an integer.
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title><function>mcrypt_get_block_size</function> example</title>
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<para>
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This example shows how to use this function when linked against libmcrypt
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2.4.x and 2.5.x.
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</para>
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<programlisting role="php">
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<![CDATA[
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<?php
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echo mcrypt_get_block_size('tripledes', 'ecb'); // 8
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?>
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]]>
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</programlisting>
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</example>
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</para>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>mcrypt_get_key_size</function></member>
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<member><function>mcrypt_enc_get_block_size</function></member>
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<member><function>mcrypt_encrypt</function></member>
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</simplelist>
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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