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>openssl_open</H1
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><P
> (PHP 4 >= 4.0.4)</P
>openssl_open -- Open sealed data</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN55930"
></A
><H2
>Description</H2
>bool <B
CLASS="methodname"
>openssl_open</B
> ( string sealed_data, string open_data, string env_key, mixed priv_key_id)<BR
></BR
><P
> Devuelve <TT
CLASS="constant"
><B
>TRUE</B
></TT
> si todo fue bien, <TT
CLASS="constant"
><B
>FALSE</B
></TT
> en caso de fallo. If successful the opened
data is returned in <TT
CLASS="parameter"
><I
>open_data</I
></TT
>.
</P
><P
> <B
CLASS="function"
>openssl_open()</B
> opens (decrypts)
<TT
CLASS="parameter"
><I
>sealed_data</I
></TT
> using the private key associated with
the key identifier <TT
CLASS="parameter"
><I
>priv_key_id</I
></TT
> and the envelope key
<TT
CLASS="parameter"
><I
>env_key</I
></TT
>, and fills
<TT
CLASS="parameter"
><I
>open_data</I
></TT
> with the decrypted data.
The envelope key is generated when the
data are sealed and can only be used by one specific private key. See
<A
HREF="function.openssl-seal.html"
><B
CLASS="function"
>openssl_seal()</B
></A
> for more information.
</P
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><B
>Ejemplo 1. <B
CLASS="function"
>openssl_open()</B
> example</B
></P
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><PRE
CLASS="php"
>// $sealed and $env_key are assumed to contain the sealed data
// and our envelope key, both given to us by the sealer.
// fetch private key from file and ready it
$fp = fopen("/src/openssl-0.9.6/demos/sign/key.pem", "r");
$priv_key = fread($fp, 8192);
fclose($fp);
$pkeyid = openssl_get_privatekey($priv_key);
// decrypt the data and store it in $open
if (openssl_open($sealed, $open, $env_key, $pkeyid))
echo "here is the opened data: ", $open;
else
echo "failed to open data";
// free the private key from memory
openssl_free_key($pkeyid);</PRE
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</P
><P
> See also <A
HREF="function.openssl-seal.html"
><B
CLASS="function"
>openssl_seal()</B
></A
>.
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