mirror of
https://github.com/sigmasternchen/php-doc-en
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82 lines
2.9 KiB
XML
82 lines
2.9 KiB
XML
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<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- splitted from ./en/functions/mcrypt.xml, last change in rev 1.7 -->
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<refentry id="function.mcrypt-ofb">
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<refnamediv>
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<refname>mcrypt_ofb</refname>
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<refpurpose>Encrypt/decrypt data in OFB mode</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>string</type><methodname>mcrypt_ofb</methodname>
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<methodparam><type>int</type><parameter>cipher</parameter></methodparam>
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<methodparam><type>string</type><parameter>key</parameter></methodparam>
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<methodparam><type>string</type><parameter>data</parameter></methodparam>
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<methodparam><type>int</type><parameter>mode</parameter></methodparam>
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<methodparam><type>string</type><parameter>iv</parameter></methodparam>
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</methodsynopsis>
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<methodsynopsis>
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<type>string</type><methodname>mcrypt_ofb</methodname>
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<methodparam><type>string</type><parameter>cipher</parameter></methodparam>
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<methodparam><type>string</type><parameter>key</parameter></methodparam>
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<methodparam><type>string</type><parameter>data</parameter></methodparam>
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<methodparam><type>int</type><parameter>mode</parameter></methodparam>
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<methodparam choice="opt"><type>string</type><parameter>iv</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.
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</para>
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<para>
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<function>mcrypt_ofb</function> encrypts or decrypts (depending
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on <parameter>mode</parameter>) the <parameter>data</parameter>
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with <parameter>cipher</parameter> and <parameter>key</parameter>
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in OFB cipher mode and returns the resulting string.
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</para>
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<para>
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<parameter>Cipher</parameter> is one of the MCRYPT_ciphername
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constants.
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</para>
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<para>
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<parameter>Key</parameter> is the key supplied to the
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algorithm. It must be kept secret.
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</para>
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<para>
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<parameter>Data</parameter> is the data which shall be
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encrypted/decrypted.
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</para>
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<para>
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<parameter>Mode</parameter> is MCRYPT_ENCRYPT or MCRYPT_DECRYPT.
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</para>
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<para>
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<parameter>IV</parameter> is the initialization vector.
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</para>
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<para>
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See also: <function>mcrypt_cbc</function>,
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<function>mcrypt_cfb</function>, and
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<function>mcrypt_ecb</function>.
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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:"../../../../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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