Get the actual key material
| public getRawKeyMaterial ( ) : string | ||
| return | string | |
public function __construct($file, Key $key = null)
{
if (is_string($file)) {
$this->fp = \fopen($file, 'rb');
$this->closeAfter = true;
$this->pos = 0;
$this->stat = \fstat($this->fp);
} elseif (is_resource($file)) {
$this->fp = $file;
$this->pos = \ftell($this->fp);
$this->stat = \fstat($this->fp);
} else {
throw new \ParagonIE\Halite\Alerts\InvalidType('Argument 1: Expected a filename or resource');
}
$this->hashKey = !empty($key) ? $key->getRawKeyMaterial() : '';
$this->hash = $this->getHash();
}
/**
* Split a key using HKDF
*
* @param Key $master
* @param string $salt
* @param Config $config
* @return string[]
*/
protected static function splitKeys(Key $master, string $salt = '', Config $config = null) : array
{
$binary = $master->getRawKeyMaterial();
return [Util::hkdfBlake2b($binary, \Sodium\CRYPTO_SECRETBOX_KEYBYTES, $config->HKDF_SBOX, $salt), Util::hkdfBlake2b($binary, \Sodium\CRYPTO_AUTH_KEYBYTES, $config->HKDF_AUTH, $salt)];
}
/**
* Save a key to a file
*
* @param Key|KeyPair $key
* @param string $filename
* @return bool
*/
public static function save($key, string $filename = '') : bool
{
if ($key instanceof KeyPair) {
return self::saveKeyFile($filename, $key->getSecretKey()->getRawKeyMaterial());
}
return self::saveKeyFile($filename, $key->getRawKeyMaterial());
}
