Summary of Changes

Corrects constants used when rehashing passwords.

Testing Instructions

For this you need to have an account that requires password rehash. Otherwise you have to manually edit either the file included in this PR or the password handler to always return true when check if rehash is needed. E.g. when using argon2i change this line to return true;:

Once done, try to login.

Actual result BEFORE applying this Pull Request

     0 The argon2i algorithm is not supported for hashing passwords. 

Call stack
# 	Function 	Location
1 	() 	JROOT\libraries\src\User\UserHelper.php:414
2 	Joomla\CMS\User\UserHelper::hashPassword() 	JROOT\libraries\src\User\UserHelper.php:476
3 	Joomla\CMS\User\UserHelper::verifyPassword() 	JROOT\plugins\authentication\joomla\joomla.php:79
4 	PlgAuthenticationJoomla->onUserAuthenticate() 	JROOT\libraries\src\Authentication\Authentication.php:177
5 	Joomla\CMS\Authentication\Authentication->authenticate() 	JROOT\libraries\src\Application\CMSApplication.php:759
6 	Joomla\CMS\Application\CMSApplication->login() 	JROOT\libraries\src\Application\SiteApplication.php:750
7 	Joomla\CMS\Application\SiteApplication->login() 	JROOT\components\com_users\src\Controller\UserController.php:122
8 	Joomla\Component\Users\Site\Controller\UserController->login() 	JROOT\libraries\src\MVC\Controller\BaseController.php:729
9 	Joomla\CMS\MVC\Controller\BaseController->execute() 	JROOT\libraries\src\Dispatcher\ComponentDispatcher.php:146
10 	Joomla\CMS\Dispatcher\ComponentDispatcher->dispatch() 	JROOT\libraries\src\Component\ComponentHelper.php:389
11 	Joomla\CMS\Component\ComponentHelper::renderComponent() 	JROOT\libraries\src\Application\SiteApplication.php:206
12 	Joomla\CMS\Application\SiteApplication->dispatch() 	JROOT\libraries\src\Application\SiteApplication.php:245
13 	Joomla\CMS\Application\SiteApplication->doExecute() 	JROOT\libraries\src\Application\CMSApplication.php:231
14 	Joomla\CMS\Application\CMSApplication->execute() 	JROOT\includes\app.php:63
15 	require_once() 	JROOT\index.php:36 

Expected result AFTER applying this Pull Request

Login works.

Documentation Changes Required

No.