/**
* {@inheritDoc}
*
* @deprecated This implementation is deprecated, as the mcrypt
* library is abandoned. Use {@link NativeRandomByteGenerator} instead.
*/
public function generate($size)
{
trigger_error('This implementation is deprecated, as the mcrypt library is abandoned', E_USER_DEPRECATED);
$generated = mcrypt_create_iv($size, $this->source);
if (false === $generated || strlen($generated) !== $size) {
throw CryptographicFailureException::forReasonCode(CryptographicFailureException::CODE_FOR_RANDOM_DATA_GENERATION_FAILURE);
}
return $generated;
}
/**
* {@inheritDoc}
*
* @deprecated This implementation is deprecated, as it's been found
* to be insecure. Use {@link RandomByteGeneratorInterface} instead.
*/
public function generate($size)
{
trigger_error('This implementation is deprecated, as it can be insecure in some circumstances', E_USER_DEPRECATED);
$generated = openssl_random_pseudo_bytes($size, $strong);
if (false === $generated || strlen($generated) !== $size || false === $strong) {
throw CryptographicFailureException::forReasonCode(CryptographicFailureException::CODE_FOR_RANDOM_DATA_GENERATION_FAILURE);
}
return $generated;
}
/**
* {@inheritDoc}
*/
public function generate($size)
{
try {
$generated = random_bytes($size);
} catch (Error $e) {
// PHP 7+ will throw an `Error`. Catch here to make sure that we don't accidentally catch a polyfilled
// `Error` from a polyfill library, such as https://github.com/paragonie/random_compat
throw $e;
} catch (Exception $e) {
throw CryptographicFailureException::forReasonCode(CryptographicFailureException::CODE_FOR_RANDOM_DATA_GENERATION_FAILURE, $e);
}
return $generated;
}
/**
* {@inheritDoc}
*/
public function encrypt($key, $data, $mode, $initialization_vector)
{
if (isset(self::$cipher_mode_map[$mode])) {
$mode = self::$cipher_mode_map[$mode];
} else {
throw new InvalidArgumentException('Unknown cipher mode "' . $mode . '"');
}
$key = $this->processKey($key);
$encrypted = mcrypt_encrypt(MCRYPT_DES, $key, $data, $mode, $initialization_vector);
if (false === $encrypted) {
throw CryptographicFailureException::forReasonCode(CryptographicFailureException::CODE_FOR_ENCRYPTION_FAILURE);
}
return $encrypted;
}
