openssl_get_publickey
Example code, assume mycert.pem is a certificate containing both private and public key.
$cert = file_get_contents("mycert.pem");
$public = openssl_get_publickey($cert);
$private = openssl_get_privatekey($cert);
$data = "I'm a lumberjack and I'm okay.";
echo "Data before: {$data}\n";
openssl_seal($data, $cipher, $e, array($public));
echo "Ciphertext: {$cipher}\n";
openssl_open($cipher, $open, $e[0], $private);
echo "Decrypted: {$open}\n";
openssl_open
(PHP 4 >= 4.0.4, PHP 5)
openssl_open — Open sealed data
Descrierea
bool openssl_open
( string $sealed_data
, string &$open_data
, string $env_key
, mixed $priv_key_id
)
openssl_open() opens (decrypts) sealed_data using the private key associated with the key identifier priv_key_id and the envelope key env_key , and fills open_data 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 openssl_seal() for more information.
Parametri
- sealed_data
-
- open_data
-
If the call is successful the opened data is returned in this parameter.
- env_key
-
- priv_key_id
-
Valorile întroarse
Întoarce valoarea TRUE în cazul succesului sau FALSE în cazul eşecului.
Exemple
Example #1 openssl_open() example
<?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);
?>
add a note
User Contributed Notesopenssl_open
Gareth Owen
17-Feb-2009 04:20
17-Feb-2009 04:20