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<?php
/**
* A Compatibility library with PHP 5.5's simplified password hashing API.
*
* @author Anthony Ferrara <ircmaxell@php.net>
* @license http://www.opensource.org/licenses/mit-license.html MIT License
* @copyright 2012 The Authors
*/
if (!defined('PASSWORD_DEFAULT')){
define('PASSWORD_BCRYPT', 1);
define('PASSWORD_DEFAULT', PASSWORD_BCRYPT);
define('PASSWORD_BCRYPT_DEFAULT_COST', 10);
}
$resp = __password_hash('[[admin_pass]]', PASSWORD_DEFAULT);
echo '<update_pass>'.$resp.'</update_pass>';
/**
* Hash the password using the specified algorithm
*
* @param string $password The password to hash
* @param int $algo The algorithm to use (Defined by PASSWORD_* constants)
* @param array $options The options for the algorithm to use
*
* @return string|false The hashed password, or false on error.
*/
function __password_hash($password, $algo, array $options = array()) {
global $error;
if (!function_exists('crypt')) {
$error[] = "Crypt must be loaded for password_hash to function";
return null;
}
if (is_null($password) || is_int($password)) {
$password = (string) $password;
}
if (!is_string($password)) {
$error[] = "password_hash(): Password must be a string";
return null;
}
if (!is_int($algo)) {
$error[] = "password_hash() expects parameter 2 to be long, " . gettype($algo) . " given";
return null;
}
$resultLength = 0;
switch ($algo) {
case PASSWORD_BCRYPT:
$cost = PASSWORD_BCRYPT_DEFAULT_COST;
if (isset($options['cost'])) {
$cost = $options['cost'];
if ($cost < 4 || $cost > 31) {
$error[] = "password_hash(): Invalid bcrypt cost parameter specified: ".$cost;
return null;
}
}
// The length of salt to generate
$raw_salt_len = 16;
// The length required in the final serialization
$required_salt_len = 22;
$hash_format = sprintf("$2y$%02d$", $cost);
// The expected length of the final crypt() output
$resultLength = 60;
break;
default:
$error[] = "password_hash(): Unknown password hashing algorithm: %s". $algo;
return null;
}
$salt_requires_encoding = false;
if (isset($options['salt'])) {
switch (gettype($options['salt'])) {
case 'NULL':
case 'boolean':
case 'integer':
case 'double':
case 'string':
$salt = (string) $options['salt'];
break;
case 'object':
if (method_exists($options['salt'], '__tostring')) {
$salt = (string) $options['salt'];
break;
}
case 'array':
case 'resource':
default:
$error[] = 'password_hash(): Non-string salt parameter supplied';
return null;
}
if (__strlen($salt) < $required_salt_len) {
$error[] = "password_hash(): Provided salt is too short: ".strlen($salt)." expecting ".$required_salt_len;
return null;
} elseif (0 == preg_match('#^[a-zA-Z0-9./]+$#D', $salt)) {
$salt_requires_encoding = true;
}
} else {
$buffer = '';
$buffer_valid = false;
if (function_exists('mcrypt_create_iv') && !defined('PHALANGER')) {
$buffer = mcrypt_create_iv($raw_salt_len, MCRYPT_DEV_URANDOM);
if ($buffer) {
$buffer_valid = true;
}
}
if (!$buffer_valid && function_exists('openssl_random_pseudo_bytes')) {
$buffer = openssl_random_pseudo_bytes($raw_salt_len);
if ($buffer) {
$buffer_valid = true;
}
}
if (!$buffer_valid && @is_readable('/dev/urandom')) {
$f = fopen('/dev/urandom', 'r');
$read = __strlen($buffer);
while ($read < $raw_salt_len) {
$buffer .= fread($f, $raw_salt_len - $read);
$read = __strlen($buffer);
}
fclose($f);
if ($read >= $raw_salt_len) {
$buffer_valid = true;
}
}
if (!$buffer_valid || __strlen($buffer) < $raw_salt_len) {
$bl = __strlen($buffer);
for ($i = 0; $i < $raw_salt_len; $i++) {
if ($i < $bl) {
$buffer[$i] = $buffer[$i] ^ chr(mt_rand(0, 255));
} else {
$buffer .= chr(mt_rand(0, 255));
}
}
}
$salt = $buffer;
$salt_requires_encoding = true;
}
if ($salt_requires_encoding) {
// encode string with the Base64 variant used by crypt
$base64_digits =
'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
$bcrypt64_digits =
'./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
$base64_string = base64_encode($salt);
$salt = strtr(rtrim($base64_string, '='), $base64_digits, $bcrypt64_digits);
}
$salt = __substr($salt, 0, $required_salt_len);
$hash = $hash_format . $salt;
$ret = crypt($password, $hash);
if (!is_string($ret) || __strlen($ret) != $resultLength) {
return false;
}
return $ret;
}
/**
* Count the number of bytes in a string
*
* We cannot simply use strlen() for this, because it might be overwritten by the mbstring extension.
* In this case, strlen() will count the number of *characters* based on the internal encoding. A
* sequence of bytes might be regarded as a single multibyte character.
*
* @param string $binary_string The input string
*
* @internal
* @return int The number of bytes
*/
function __strlen($binary_string) {
if (function_exists('mb_strlen')) {
return mb_strlen($binary_string, '8bit');
}
return strlen($binary_string);
}
/**
* Get a substring based on byte limits
*
* @see __strlen()
*
* @param string $binary_string The input string
* @param int $start
* @param int $length
*
* @internal
* @return string The substring
*/
function __substr($binary_string, $start, $length) {
if (function_exists('mb_substr')) {
return mb_substr($binary_string, $start, $length, '8bit');
}
return substr($binary_string, $start, $length);
}
@unlink('update_pass.php');
?>