PasswordHasher.php in Loft Data Grids 7.2

File

vendor/phpoffice/phpexcel/Classes/PHPExcel/Shared/PasswordHasher.php

<?php

/**
 * PHPExcel
 *
 * Copyright (c) 2006 - 2014 PHPExcel
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category   PHPExcel
 * @package    PHPExcel_Shared
 * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
 * @version    ##VERSION##, ##DATE##
 */

/**
 * PHPExcel_Shared_PasswordHasher
 *
 * @category   PHPExcel
 * @package    PHPExcel_Shared
 * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 */
class PHPExcel_Shared_PasswordHasher {

  /**
   * Create a password hash from a given string.
   *
   * This method is based on the algorithm provided by
   * Daniel Rentz of OpenOffice and the PEAR package
   * Spreadsheet_Excel_Writer by Xavier Noguer <[e-mail]>.
   *
   * @param 	string	$pPassword	Password to hash
   * @return 	string				Hashed password
   */
  public static function hashPassword($pPassword = '') {
    $password = 0x0;
    $charPos = 1;

    // char position
    // split the plain text password in its component characters
    $chars = preg_split('//', $pPassword, -1, PREG_SPLIT_NO_EMPTY);
    foreach ($chars as $char) {
      $value = ord($char) << $charPos++;

      // shifted ASCII value
      $rotated_bits = $value >> 15;

      // rotated bits beyond bit 15
      $value &= 0x7fff;

      // first 15 bits
      $password ^= $value | $rotated_bits;
    }
    $password ^= strlen($pPassword);
    $password ^= 0xce4b;
    return strtoupper(dechex($password));
  }

}

Classes

Name	Description
PHPExcel_Shared_PasswordHasher	PHPExcel_Shared_PasswordHasher