38         $secret = '';
52                 $secret .= $validChars[ord($rnd[$i]) & 31];
58         return $secret;
64      * @param string   $secret
69     public function getCode($secret, $timeSlice = null)  argument
75         $secretkey = $this->_base32Decode($secret);
101      * @param string $secret
107     public function getQRCodeGoogleUrl($name, $secret, $title = null, $params = array())  argument
113         $urlencoded = urlencode('otpauth://totp/'.$name.'?secret='.$secret.'');
124      * @param string   $secret
131     public function verifyCode($secret, $code, $discrepancy = 1, $currentTimeSlice = null)  argument
142             $calculatedCode = $this->getCode($secret, $currentTimeSlice + $i);
172     protected function _base32Decode($secret)  argument
174         if (empty($secret)) {
181         $paddingCharCount = substr_count($secret, $base32chars[32]);
188 …      substr($secret, -($allowedValues[$i])) != str_repeat($base32chars[32], $allowedValues[$i])) {
192         $secret = str_replace('=', '', $secret);
193         $secret = str_split($secret);
195         for ($i = 0; $i < count($secret); $i = $i + 8) {
197             if (!in_array($secret[$i], $base32chars)) {
201 … $x .= str_pad(base_convert(@$base32charsFlipped[@$secret[$i + $j]], 10, 2), 5, '0', STR_PAD_LEFT);