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<?php |
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require_once __DIR__ . '/../OATH/OCRA.php'; |
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/** |
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* This file is part of the tiqr project. |
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* |
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* The tiqr project aims to provide an open implementation for |
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* authentication using mobile devices. It was initiated by |
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* SURFnet and developed by Egeniq. |
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* |
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* More information: http://www.tiqr.org |
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* |
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* @author Ivo Jansch <[email protected]> |
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* |
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* @package tiqr |
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* |
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* @license New BSD License - See LICENSE file for details. |
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* |
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* @copyright (C) 2010-2012 SURFnet BV |
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*/ |
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/** |
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* The implementation for the tiqr ocra service class. |
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* |
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* @author lineke |
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* |
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*/ |
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class Tiqr_OcraService_Tiqr extends Tiqr_OcraService_Abstract |
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{ |
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/** |
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* @see Tiqr_OcraService_Interface::verifyResponse() |
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*/ |
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public function verifyResponse(String $response, String $userId, String $userSecret, String $challenge, String $sessionInformation): bool |
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{ |
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// Calculate the response. Because we have the same information as the client this should result in the same |
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// response as the client calculated. |
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try { |
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$expected = OCRA::generateOCRA($this->_ocraSuite, $userSecret, "", $challenge, "", $sessionInformation, ""); |
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} |
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catch (Exception $e) { |
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$this->logger->warning(sprintf('Error calculating OCRA response for user "%s"', $userId), array('exception'=>$e)); |
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return false; |
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} |
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3 |
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if (strlen($expected) != strlen($response)) { |
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1 |
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$this->logger->warning('verifyResponse: calculated and expected response have different lengths'); |
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} |
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// Use constant time compare |
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return $this->_ocraParser->constEqual($expected, $response); |
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} |
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} |
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Tiqr /
tiqr-server-libphp
