php-doc-en/reference/openssl/functions/openssl-public-encrypt.xml
Jakub Vrana 03470a1d03 No longer experimental
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@191005 c90b9560-bf6c-de11-be94-00142212c4b1
2005-07-19 13:41:16 +00:00

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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.8 $ -->
<!-- splitted from ./en/functions/openssl.xml, last change in rev 1.19 -->
<refentry id="function.openssl-public-encrypt">
<refnamediv>
<refname>openssl_public_encrypt</refname>
<refpurpose>Encrypts data with public key </refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>bool</type><methodname>openssl_public_encrypt</methodname>
<methodparam><type>string</type><parameter>data</parameter></methodparam>
<methodparam><type>string</type><parameter role="reference">crypted</parameter></methodparam>
<methodparam><type>mixed</type><parameter>key</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>padding</parameter></methodparam>
</methodsynopsis>
<para>
<function>openssl_public_encrypt</function> encrypts <parameter>data</parameter>
with public <parameter>key</parameter> and stores the result into
<parameter>crypted</parameter>. Encrypted data can be decrypted via
<function>openssl_private_decrypt</function>. <parameter>padding</parameter>
defaults to <constant>OPENSSL_PKCS1_PADDING</constant>, but can also be
one of <constant>OPENSSL_SSLV23_PADDING</constant>,
<constant>OPENSSL_PKCS1_OAEP_PADDING</constant>,
<constant>OPENSSL_NO_PADDING</constant>.
</para>
<para>
&return.success;
</para>
<para>
This function can be used e.g. to encrypt message which can be then read
only by owner of the private key. It can be also used to store secure data
in database.
</para>
<para>
See also <function>openssl_private_decrypt</function> and
<function>openssl_private_encrypt</function>.
</para>
</refsect1>
</refentry>
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