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https://github.com/sigmasternchen/php-doc-en
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c148211fa2
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@172416 c90b9560-bf6c-de11-be94-00142212c4b1
86 lines
2.7 KiB
XML
86 lines
2.7 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.7 $ -->
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<!-- splitted from ./en/functions/openssl.xml, last change in rev 1.1 -->
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<refentry id="function.openssl-open">
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<refnamediv>
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<refname>openssl_open</refname>
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<refpurpose>Open sealed data</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>bool</type><methodname>openssl_open</methodname>
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<methodparam><type>string</type><parameter>sealed_data</parameter></methodparam>
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<methodparam><type>string</type><parameter role="reference">open_data</parameter></methodparam>
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<methodparam><type>string</type><parameter>env_key</parameter></methodparam>
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<methodparam><type>mixed</type><parameter>priv_key_id</parameter></methodparam>
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</methodsynopsis>
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<para>
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&return.success; If successful the opened
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data is returned in <parameter>open_data</parameter>.
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</para>
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<para>
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<function>openssl_open</function> opens (decrypts)
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<parameter>sealed_data</parameter> using the private key associated with
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the key identifier <parameter>priv_key_id</parameter> and the envelope key
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<parameter>env_key</parameter>, and fills
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<parameter>open_data</parameter> with the decrypted data.
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The envelope key is generated when the
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data are sealed and can only be used by one specific private key. See
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<function>openssl_seal</function> for more information.
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</para>
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<para>
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<example>
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<title><function>openssl_open</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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// $sealed and $env_key are assumed to contain the sealed data
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// and our envelope key, both given to us by the sealer.
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// fetch private key from file and ready it
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$fp = fopen("/src/openssl-0.9.6/demos/sign/key.pem", "r");
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$priv_key = fread($fp, 8192);
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fclose($fp);
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$pkeyid = openssl_get_privatekey($priv_key);
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// decrypt the data and store it in $open
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if (openssl_open($sealed, $open, $env_key, $pkeyid)) {
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echo "here is the opened data: ", $open;
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} else {
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echo "failed to open data";
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}
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// free the private key from memory
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openssl_free_key($pkeyid);
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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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<simpara>
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See also <function>openssl_seal</function>.
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</simpara>
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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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