OPENSSL_OPEN(3) 1 OPENSSL_OPEN(3)
openssl_open - Open sealed data
SYNOPSIS
bool openssl_open (string $sealed_data, string &$open_data, string $env_key, mixed $priv_key_id, [string $method])
DESCRIPTION
openssl_open(3) 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(3) for more information.
PARAMETERS
o $sealed_data
-
o $open_data
- If the call is successful the opened data is returned in this parameter.
o $env_key
-
o $priv_key_id
-
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
openssl_open(3) 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);
?>
SEE ALSO
openssl_seal(3).
PHP Documentation Group OPENSSL_OPEN(3)
