visualizer / vendor / phpoffice / phpspreadsheet / src / PhpSpreadsheet / Shared / PasswordHasher.php

PasswordHasher.php in Visualizer – Tables & Charts Manager with Built-in AI Generator 3.7.1, at vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Shared/PasswordHasher.php

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1	<?php
2
3	namespace PhpOffice\PhpSpreadsheet\Shared;
4
5	class PasswordHasher
6	{
7	/**
8	* Create a password hash from a given string.
9	*
10	* This method is based on the algorithm provided by
11	* Daniel Rentz of OpenOffice and the PEAR package
12	* Spreadsheet_Excel_Writer by Xavier Noguer <xnoguer@rezebra.com>.
13	*
14	* @param string $pPassword Password to hash
15	*
16	* @return string Hashed password
17	*/
18	public static function hashPassword($pPassword)
19	{
20	$password = 0x0000;
21	$charPos = 1; // char position
22
23	// split the plain text password in its component characters
24	$chars = preg_split('//', $pPassword, -1, PREG_SPLIT_NO_EMPTY);
25	foreach ($chars as $char) {
26	$value = ord($char) << $charPos++; // shifted ASCII value
27	$rotated_bits = $value >> 15; // rotated bits beyond bit 15
28	$value &= 0x7fff; // first 15 bits
29	$password ^= ($value \| $rotated_bits);
30	}
31
32	$password ^= strlen($pPassword);
33	$password ^= 0xCE4B;
34
35	return strtoupper(dechex($password));
36	}
37	}
38