PasswordHash::crypt_private() private WP 1.0

{} It's a method of the class: PasswordHash{}

No Hooks.

Return

null. Null. Nothing.

Usage

// private - for code of main (parent) class only
$result = $this->crypt_private( $password, $setting );

$password (required)

-

$setting (required)

-

Code of PasswordHash::crypt_private() PasswordHash::crypt private ^{WP 5.7.1}

<?php
function crypt_private($password, $setting)
{
	$output = '*0';
	if (substr($setting, 0, 2) == $output)
		$output = '*1';

	$id = substr($setting, 0, 3);
	# We use "$P$", phpBB3 uses "$H$" for the same thing
	if ($id != '$P$' && $id != '$H$')
		return $output;

	$count_log2 = strpos($this->itoa64, $setting[3]);
	if ($count_log2 < 7 || $count_log2 > 30)
		return $output;

	$count = 1 << $count_log2;

	$salt = substr($setting, 4, 8);
	if (strlen($salt) != 8)
		return $output;

	# We're kind of forced to use MD5 here since it's the only
	# cryptographic primitive available in all versions of PHP
	# currently in use.  To implement our own low-level crypto
	# in PHP would result in much worse performance and
	# consequently in lower iteration counts and hashes that are
	# quicker to crack (by non-PHP code).
	if (PHP_VERSION >= '5') {
		$hash = md5($salt . $password, TRUE);
		do {
			$hash = md5($hash . $password, TRUE);
		} while (--$count);
	} else {
		$hash = pack('H*', md5($salt . $password));
		do {
			$hash = pack('H*', md5($hash . $password));
		} while (--$count);
	}

	$output = substr($setting, 0, 12);
	$output .= $this->encode64($hash, 16);

	return $output;
}