/**
* authenticate the user after initialization
*
* Cyril Ogana <*****@*****.**> - 2016-07-05
*
* @access public
*/
public function authenticate()
{
$currentStage = $this->_multiFactorStages['current'];
//set stage as inactive
if ($currentStage == 1) {
$this->_multiFactorStages[1]['statuss'] = parent::authenticate();
//stage one sucessfull, bootstrap stage 2
if ($this->_multiFactorStages[1]['statuss'] === true) {
$this->_multiFactorStages[2] = array('enc_key' => \openssl_random_pseudo_bytes($this->getEncKeyLength()), 'statuss' => false);
}
return $this->_multiFactorStages;
} elseif ($currentStage != 2) {
throw new UserCredentialException('The current stage of the multi factor auth process is in an unknown state', 2101);
}
//authenticate stage 2
$totpTimestamp = $this->userTotpProfile['totp_timestamp'];
$totpTimelimit = $this->userTotpProfile['totp_timelimit'];
$currDateTime = new \DateTime();
$totpTimeElapsed = $currDateTime->getTimestamp() - $totpTimestamp->getTimestamp();
$encKey = $this->userTotpProfile['enc_key'];
$verificationHash = $this->getVerificationHash();
$comparisonHash = \crypt($this->getCurrentPassword(), $encKey);
//initialize verification - comparison
$verificationEqualsComparison = false;
//verify if verification hash equals comparison hash. Use hash_equals function if exists
if (!\function_exists('hash_equals')) {
if ($verificationHash === $comparisonHash) {
$verificationEqualsComparison = true;
}
} else {
if (\hash_equals($verificationHash, $comparisonHash)) {
$verificationEqualsComparison = true;
}
}
if (!($totpTimeElapsed < $totpTimelimit) || !($verificationEqualsComparison === true) || !$this->checkToken()) {
return false;
} else {
return true;
}
}
/**
* Return the hashed user password
*
* Cyril Ogana <*****@*****.**> - 2014-02-13
*
* @param $unhashed - flag if true, return unhashed
*
* @return mixed - the hashed password
*
* @access public
*/
public function getPassword($unhashed = false)
{
//unhashed has no bearing, we want it false
$unhashedForce = false;
return parent::getPassword($unhashedForce);
}