/**
* {@inheritDoc}
* @see \Mdanter\Ecc\Crypto\EcDH\EcDHInterface::decryptFile()
*/
public function decryptFile($path)
{
if (file_exists($path) && is_readable($path)) {
$cipherText = $this->messages->ciphertext(file_get_contents($path));
return $cipherText;
}
throw new \InvalidArgumentException("File '{$path}' does not exist or is not readable.");
}
/**
* @param $content
* @return int|string
*/
private function hash($content)
{
$messages = new MessageFactory(MathAdapterFactory::getAdapter());
return $messages->plaintext($content, 'sha256')->getHash();
}