PasswordEncryptor_PBKDF2

Complexity

Total Complexity

4

Size/Duplication

Total Lines	36
Duplicated Lines	0 %

Importance

Changes	1
Bugs	0	Features	0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	getIterations()	0	3	1
A	__construct()	0	6	2
A	encrypt()	0	3	1

<?php declare(strict_types=1);

/**
 * Provides Password-Based Key Derivation Function hashing for passwords, using the provided algorithm (default
 * is SHA512), which is NZISM compliant under version 3.2 section 17.2.
 */
class PasswordEncryptor_PBKDF2 extends PasswordEncryptor_PHPHash
{
	/**
	 * The number of internal iterations for hash_pbkdf2() to perform for the derivation. Please note that if you
	 * change this from the default value you will break existing hashes stored in the database, so these would
	 * need to be regenerated.
	 *
	 * @var int
	 */
	protected $iterations = 10000;

	/**
	 * @param string $algorithm
	 * @param int|null $iterations
	 * @throws Exception If the provided algorithm is not available in the current environment
	 */
	public function __construct(string $algorithm, int $iterations = null)
	{
		parent::__construct($algorithm);

		if ($iterations !== null) {
			$this->iterations = $iterations;
		}
	}

	/**
	 * @return int
	 */
	public function getIterations(): int
	{
		return $this->iterations;
	}

	public function encrypt($password, $salt = null, $member = null)
	{
		return hash_pbkdf2($this->getAlgorithm(), (string) $password, (string) $salt, $this->getIterations());
	}
}