/**
* Generate a set of mOTP shared parameters.
*
* @param MotpConfigurationInterface $configuration The configuration to generate shared parameters for.
*
* @return MotpSharedParametersInterface The generated shared parameters.
*/
public function generateMotp(MotpConfigurationInterface $configuration)
{
return new MotpSharedParameters($this->isolator()->mcrypt_create_iv($configuration->secretLength()), str_pad($this->isolator()->mt_rand(0, 9999), 4, '0', STR_PAD_LEFT), $this->isolator()->time(), $this->isolator());
}
/**
* Generate an mOTP value.
*
* @link http://motp.sourceforge.net/#1.1
*
* @param MotpConfigurationInterface $configuration The configuration to use for generation.
* @param MotpSharedParametersInterface $shared The shared parameters to use for generation.
*
* @return OtpValueInterface The generated mOTP value.
*/
public function generateMotp(MotpConfigurationInterface $configuration, MotpSharedParametersInterface $shared)
{
return new MotpValue(md5(strval(intval($shared->time() / $configuration->window())) . bin2hex($shared->secret()) . $shared->pin()));
}
