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<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/
namespace phpbb\passwords\driver;
class argon2i extends base_native
{
/** @var int Maximum memory (in bytes) that may be used to compute the Argon2 hash */
protected $memory_cost;
/** @var int Number of threads to use for computing the Argon2 hash */
protected $threads;
/** @var int Maximum amount of time it may take to compute the Argon2 hash */
protected $time_cost;
/**
* Constructor of passwords driver object
*
* @param \phpbb\config\config $config phpBB config
* @param \phpbb\passwords\driver\helper $helper Password driver helper
* @param int $memory_cost Maximum memory (optional)
* @param int $threads Number of threads to use (optional)
* @param int $time_cost Maximum amount of time (optional)
*/
public function __construct(\phpbb\config\config $config, helper $helper, $memory_cost = 1024, $threads = 2, $time_cost = 2)
{
parent::__construct($config, $helper);
// Don't allow cost factors to be below default settings
$this->memory_cost = max($memory_cost, 1024);
$this->threads = max($threads, 2);
$this->time_cost = max($time_cost, 2);
}
/**
* {@inheritdoc}
*/
public function get_algo_name()
{
return 'PASSWORD_ARGON2I';
}
/**
* {@inheritdoc}
*/
public function get_options()
{
return [
'memory_cost' => $this->memory_cost,
'time_cost' => $this->time_cost,
'threads' => $this->threads
];
}
/**
* {@inheritdoc}
*/
public function get_prefix()
{
return '$argon2i$';
}
}
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