/**
* Test for engine validity
*
* This is mainly just a wrapper to set things up for \phpseclib\Crypt\Common\SymmetricKey::isValidEngine()
*
* @see \phpseclib\Crypt\Common\SymmetricKey::isValidEngine()
* @param int $engine
* @access public
* @return bool
*/
function isValidEngine($engine)
{
if ($engine == self::ENGINE_OPENSSL) {
if ($this->key_length != 16) {
return false;
}
$this->cipher_name_openssl_ecb = 'bf-ecb';
$this->cipher_name_openssl = 'bf-' . $this->_openssl_translate_mode();
}
return parent::isValidEngine($engine);
}
/**
* Test for engine validity
*
* This is mainly just a wrapper to set things up for \phpseclib\Crypt\Common\SymmetricKey::isValidEngine()
*
* @see \phpseclib\Crypt\Common\SymmetricKey::__construct()
* @param int $engine
* @access public
* @return bool
*/
function isValidEngine($engine)
{
switch ($engine) {
case self::ENGINE_OPENSSL:
if ($this->current_key_length != 128 || strlen($this->orig_key) < 16) {
return false;
}
$this->cipher_name_openssl_ecb = 'rc2-ecb';
$this->cipher_name_openssl = 'rc2-' . $this->_openssl_translate_mode();
}
return parent::isValidEngine($engine);
}
/**
* Test for engine validity
*
* This is mainly just a wrapper to set things up for \phpseclib\Crypt\Common\SymmetricKey::isValidEngine()
*
* @see \phpseclib\Crypt\Common\SymmetricKey::__construct()
* @param int $engine
* @access public
* @return bool
*/
function isValidEngine($engine)
{
switch ($engine) {
case self::ENGINE_OPENSSL:
if ($this->block_size != 16) {
return false;
}
$this->cipher_name_openssl_ecb = 'aes-' . ($this->key_length << 3) . '-ecb';
$this->cipher_name_openssl = 'aes-' . ($this->key_length << 3) . '-' . $this->_openssl_translate_mode();
break;
case self::ENGINE_MCRYPT:
$this->cipher_name_mcrypt = 'rijndael-' . ($this->block_size << 3);
if ($this->key_length % 8) {
// is it a 160/224-bit key?
// mcrypt is not usable for them, only for 128/192/256-bit keys
return false;
}
}
return parent::isValidEngine($engine);
}