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Regard whitespace Rev 69 → Rev 70

/trunk/vts_crypt.inc.php
1,9 → 1,9
<?php
 
/*
* ViaThinkSoft Modular Crypt Format 1.0 / vts_password_hash() / vts_password_verify()
* ViaThinkSoft Modular Crypt Format 1.0 and vts_password_*() functions
* Copyright 2023 Daniel Marschall, ViaThinkSoft
* Revision 2023-02-28
* Revision 2023-03-02
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
43,6 → 43,10
sha224
sha1
md5
Not supported are these hashes (because they have a special salt-handling and output their own crypt format):
bcrypt [Standardized crypt identifier 2, 2a, 2x, 2y]
argon2i [Crypt identifier argon2i, not standardized]
argon2id [Crypt identifier argon2i, not standardized]
Valid <mode> :
sp = salt + password
ps = password + salt
63,13 → 67,13
define('OID_MCF_VTS_V1', '1.3.6.1.4.1.37476.3.0.1.1'); // { iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 37476 specifications(3) misc(0) modular-crypt-format(1) vts-crypt-v1(1) }
 
// Valid algorithms for vts_password_hash():
define('PASSWORD_STD_DES', 'std_des'); // Algorithm from crypt()
define('PASSWORD_EXT_DES', 'ext_des'); // Algorithm from crypt()
define('PASSWORD_STD_DES', 'std-des'); // Algorithm from crypt()
define('PASSWORD_EXT_DES', 'ext-des'); // Algorithm from crypt()
define('PASSWORD_MD5', 'md5'); // Algorithm from crypt()
define('PASSWORD_BLOWFISH', 'blowfish'); // Algorithm from crypt()
define('PASSWORD_SHA256', 'sha256'); // Algorithm from crypt()
define('PASSWORD_SHA512', 'sha512'); // Algorithm from crypt()
define('PASSWORD_VTS_MCF1', OID_MCF_VTS_V1); // Algorithm from ViaThinkSoft
define('PASSWORD_VTS_MCF1', OID_MCF_VTS_V1); // Algorithm by ViaThinkSoft
// Other valid values (already defined in PHP):
// - PASSWORD_DEFAULT
// - PASSWORD_BCRYPT
76,6 → 80,20
// - PASSWORD_ARGON2I
// - PASSWORD_ARGON2ID
 
define('PASSWORD_VTS_MCF1_MODE_SP', 'sp'); // Salt+Password
define('PASSWORD_VTS_MCF1_MODE_PS', 'ps'); // Password+Salt
define('PASSWORD_VTS_MCF1_MODE_SPS', 'sps'); // Salt+Password+Salt
define('PASSWORD_VTS_MCF1_MODE_HMAC', 'hmac'); // HMAC
define('PASSWORD_VTS_MCF1_MODE_PBKDF2', 'pbkdf2'); // PBKDF2-HMAC
 
define('PASSWORD_EXT_DES_DEFAULT_ITERATIONS', 725);
define('PASSWORD_BLOWFISH_DEFAULT_COST', 10);
define('PASSWORD_SHA256_DEFAULT_ROUNDS', 5000);
define('PASSWORD_SHA512_DEFAULT_ROUNDS', 5000);
define('PASSWORD_VTS_MCF1_DEFAULT_ALGO', 'sha3-512'); // any value in hash_algos(), NOT vts_hash_algos()
define('PASSWORD_VTS_MCF1_DEFAULT_MODE', PASSWORD_VTS_MCF1_MODE_PS);
define('PASSWORD_VTS_MCF1_DEFAULT_ITERATIONS', 0); // only for mode=pbkdf2. 0=Default, depending on algo
 
// --- Part 1: Modular Crypt Format encode/decode
 
function crypt_modular_format_encode($id, $bin_salt, $bin_hash, $params=null) {
139,9 → 157,31
}
}
 
function vts_crypt_hash($algo, $str_password, $str_salt, $ver='1', $mode='ps', $iterations=0/*default*/) {
function _default_iterations($algo, $userland) {
if ($userland) {
return 100; // because the userland implementation is EXTREMELY slow, we must choose a small value, sorry...
} else {
// Recommendations taken from https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#pbkdf2
// Note that hash_pbkdf2() implements PBKDF2-HMAC-*
if ($algo == 'sha3-512') return 100000;
else if ($algo == 'sha3-384') return 100000;
else if ($algo == 'sha3-256') return 100000;
else if ($algo == 'sha3-224') return 100000;
else if ($algo == 'sha512') return 210000; // value by owasp.org cheatcheat (28 February 2023)
else if ($algo == 'sha512/256') return 210000; // value by owasp.org cheatcheat (28 February 2023)
else if ($algo == 'sha512/224') return 210000; // value by owasp.org cheatcheat (28 February 2023)
else if ($algo == 'sha384') return 600000;
else if ($algo == 'sha256') return 600000; // value by owasp.org cheatcheat (28 February 2023)
else if ($algo == 'sha224') return 600000;
else if ($algo == 'sha1') return 1300000; // value by owasp.org cheatcheat (28 February 2023)
else if ($algo == 'md5') return 5000000;
else return 5000;
}
}
 
function vts_crypt_hash($algo, $str_password, $str_salt, $ver='1', $mode=PASSWORD_VTS_MCF1_DEFAULT_MODE, $iterations=PASSWORD_VTS_MCF1_DEFAULT_ITERATIONS) {
if ($ver == '1') {
if ($mode == 'sp') {
if ($mode == PASSWORD_VTS_MCF1_MODE_SP) {
$payload = $str_salt.$str_password;
if (!hash_supported_natively($algo) && str_starts_with($algo, 'sha3-') && method_exists('\bb\Sha3\Sha3', 'hash')) {
$bits = explode('-',$algo)[1];
149,7 → 189,7
} else {
$bin_hash = hash($algo, $payload, true);
}
} else if ($mode == 'ps') {
} else if ($mode == PASSWORD_VTS_MCF1_MODE_PS) {
$payload = $str_password.$str_salt;
if (!hash_supported_natively($algo) && str_starts_with($algo, 'sha3-') && method_exists('\bb\Sha3\Sha3', 'hash')) {
$bits = explode('-',$algo)[1];
157,7 → 197,7
} else {
$bin_hash = hash($algo, $payload, true);
}
} else if ($mode == 'sps') {
} else if ($mode == PASSWORD_VTS_MCF1_MODE_SPS) {
$payload = $str_salt.$str_password.$str_salt;
if (!hash_supported_natively($algo) && str_starts_with($algo, 'sha3-') && method_exists('\bb\Sha3\Sha3', 'hash')) {
$bits = explode('-',$algo)[1];
165,7 → 205,7
} else {
$bin_hash = hash($algo, $payload, true);
}
} else if ($mode == 'hmac') {
} else if ($mode == PASSWORD_VTS_MCF1_MODE_HMAC) {
if (!hash_hmac_supported_natively($algo) && str_starts_with($algo, 'sha3-') && method_exists('\bb\Sha3\Sha3', 'hash_hmac')) {
$bits = explode('-',$algo)[1];
$bin_hash = \bb\Sha3\Sha3::hash_hmac($str_password, $str_salt, $bits, true);
172,30 → 212,16
} else {
$bin_hash = hash_hmac($algo, $str_password, $str_salt, true);
}
} else if ($mode == 'pbkdf2') {
} else if ($mode == PASSWORD_VTS_MCF1_MODE_PBKDF2) {
if (!hash_pbkdf2_supported_natively($algo) && str_starts_with($algo, 'sha3-') && method_exists('\bb\Sha3\Sha3', 'hash_pbkdf2')) {
if ($iterations == 0) {
$iterations = 100; // because the userland implementation is EXTREMELY slow, we must choose a small value, sorry...
if ($iterations == 0/*default*/) {
$iterations = _default_iterations($algo, true);
}
$bits = explode('-',$algo)[1];
$bin_hash = \bb\Sha3\Sha3::hash_pbkdf2($str_password, $str_salt, $iterations, $bits, 0, true);
} else {
if ($iterations == 0) {
// Recommendations taken from https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#pbkdf2
// Note that hash_pbkdf2() implements PBKDF2-HMAC-*
if ($algo == 'sha3-512') $iterations = 100000;
else if ($algo == 'sha3-384') $iterations = 100000;
else if ($algo == 'sha3-256') $iterations = 100000;
else if ($algo == 'sha3-224') $iterations = 100000;
else if ($algo == 'sha512') $iterations = 210000; // value by owasp.org cheatcheat (28 February 2023)
else if ($algo == 'sha512/256') $iterations = 210000; // value by owasp.org cheatcheat (28 February 2023)
else if ($algo == 'sha512/224') $iterations = 210000; // value by owasp.org cheatcheat (28 February 2023)
else if ($algo == 'sha384') $iterations = 600000;
else if ($algo == 'sha256') $iterations = 600000; // value by owasp.org cheatcheat (28 February 2023)
else if ($algo == 'sha224') $iterations = 600000;
else if ($algo == 'sha1') $iterations = 1300000; // value by owasp.org cheatcheat (28 February 2023)
else if ($algo == 'md5') $iterations = 5000000;
else $iterations = 5000;
if ($iterations == 0/*default*/) {
$iterations = _default_iterations($algo, false);
}
$bin_hash = hash_pbkdf2($algo, $str_password, $str_salt, $iterations, 0, true);
}
206,7 → 232,7
$params = array();
$params['a'] = $algo;
$params['m'] = $mode;
if ($mode == 'pbkdf2') $params['i'] = $iterations;
if ($mode == PASSWORD_VTS_MCF1_MODE_PBKDF2) $params['i'] = $iterations;
return crypt_modular_format_encode(OID_MCF_VTS_V1, $bin_salt, $bin_hash, $params);
} else {
throw new Exception("Invalid VTS crypt version, expect 1.");
230,7 → 256,7
if (!isset($params['m'])) throw new Exception('Param "m" (mode) missing');
$mode = $params['m'];
 
if ($mode == 'pbkdf2') {
if ($mode == PASSWORD_VTS_MCF1_MODE_PBKDF2) {
if (!isset($params['i'])) throw new Exception('Param "i" (iterations) missing');
$iterations = $params['i'];
} else {
249,20 → 275,115
}
}
 
// --- Part 3: vts_password_hash() and vts_password_verify()
// --- Part 3: Replacement of vts_password_*() functions
 
/** This function extends password_verify() by adding ViaThinkSoft Modular Crypt Format 1.0.
* @param string $password to be checked
* @param string $hash Hash created by crypt(), password_hash(), or vts_password_hash().
* @return bool true if password is valid
/**
* This function replaces password_algos() by extending it with
* password hashes that are implemented in vts_password_hash().
* @return array of hashes that can be used in vts_password_hash().
*/
function vts_password_verify($password, $hash): bool {
if (vts_crypt_version($hash) != '0') {
// Hash created by vts_password_hash(), or vts_crypt_hash()
return vts_crypt_verify($password, $hash);
function vts_password_algos() {
$hashes = password_algos();
$hashes[] = PASSWORD_STD_DES; // Algorithm from crypt()
$hashes[] = PASSWORD_EXT_DES; // Algorithm from crypt()
$hashes[] = PASSWORD_MD5; // Algorithm from crypt()
$hashes[] = PASSWORD_BLOWFISH; // Algorithm from crypt()
$hashes[] = PASSWORD_SHA256; // Algorithm from crypt()
$hashes[] = PASSWORD_SHA512; // Algorithm from crypt()
$hashes[] = PASSWORD_VTS_MCF1; // Algorithm by ViaThinkSoft
return $hashes;
}
 
/** vts_password_get_info() is the same as password_get_info(),
* but it adds the crypt() and ViaThinkSoft MCF 1.0 algos which can be
* produced by vts_password_hash()
* @param string $hash Hash created by vts_password_hash(), password_hash(), or crypt().
* @return array Same output like password_get_info().
*/
function vts_password_get_info($hash) {
if (vts_crypt_version($hash) == '1') {
// OID_MCF_VTS_V1
$mcf = crypt_modular_format_decode($hash);
 
//$options['salt_length'] = strlen($mcf['salt']); // Note: salt_length is not a MCF option! It's just a hint for vts_password_hash()
 
if (!isset($mcf['params']['a'])) throw new Exception('Param "a" (algo) missing');
$options['algo'] = $mcf['params']['a'];
 
if (!isset($mcf['params']['m'])) throw new Exception('Param "m" (mode) missing');
$options['mode'] = $mcf['params']['m'];
 
if ($options['mode'] == PASSWORD_VTS_MCF1_MODE_PBKDF2) {
if (!isset($mcf['params']['i'])) throw new Exception('Param "i" (iterations) missing');
$options['iterations'] = $mcf['params']['i'];
}
 
return array(
"algo" => PASSWORD_VTS_MCF1,
"algoName" => "vts-mcf-v1",
"options" => $options
);
} else if (!str_starts_with($hash, '$') && (strlen($hash) == 13)) {
// PASSWORD_STD_DES
return array(
"algo" => PASSWORD_STD_DES,
"algoName" => "std-des",
"options" => array(
// None
)
);
} else if (str_starts_with($hash, '_') && (strlen($hash) == 20)) {
// PASSWORD_EXT_DES
return array(
"algo" => PASSWORD_EXT_DES,
"algoName" => "ext-des",
"options" => array(
"iterations" => base64_int_decode(substr($hash,1,4))
)
);
} else if (str_starts_with($hash, '$1$')) {
// PASSWORD_MD5
return array(
"algo" => PASSWORD_MD5,
"algoName" => "md5",
"options" => array(
// None
)
);
} else if (str_starts_with($hash, '$2$') || str_starts_with($hash, '$2a$') ||
str_starts_with($hash, '$2x$') || str_starts_with($hash, '$2y$')) {
// PASSWORD_BLOWFISH
return array(
"algo" => PASSWORD_BLOWFISH,
"algoName" => "blowfish",
"options" => array(
"cost" => explode('$',$hash)[2]
)
);
} else if (str_starts_with($hash, '$5$')) {
// PASSWORD_SHA256
return array(
"algo" => PASSWORD_SHA256,
"algoName" => "sha256",
"options" => array(
'rounds' => str_replace('rounds=','',explode('$',$hash)[2])
)
);
} else if (str_starts_with($hash, '$6$')) {
// PASSWORD_SHA512
return array(
"algo" => PASSWORD_SHA512,
"algoName" => "sha512",
"options" => array(
'rounds' => str_replace('rounds=','',explode('$',$hash)[2])
)
);
} else {
// Hash created by vts_password_hash(), password_hash(), or crypt()
return password_verify($password, $hash);
// PASSWORD_DEFAULT
// PASSWORD_BCRYPT
// PASSWORD_ARGON2I
// PASSWORD_ARGON2ID
return password_get_info($hash);
}
}
 
275,6 → 396,8
* @return string Crypt style password hash
*/
function vts_password_hash($password, $algo, $options=array()): string {
$options = vts_password_fill_default_options($algo, $options);
 
$crypt_salt = null;
if (($algo === PASSWORD_STD_DES) && defined('CRYPT_STD_DES')) {
// Standard DES-based hash with a two character salt from the alphabet "./0-9A-Za-z". Using invalid characters in the salt will cause crypt() to fail.
281,8 → 404,8
$crypt_salt = des_compat_salt(2);
} else if (($algo === PASSWORD_EXT_DES) && defined('CRYPT_EXT_DES')) {
// Extended DES-based hash. The "salt" is a 9-character string consisting of an underscore followed by 4 characters of iteration count and 4 characters of salt. Each of these 4-character strings encode 24 bits, least significant character first. The values 0 to 63 are encoded as ./0-9A-Za-z. Using invalid characters in the salt will cause crypt() to fail.
$iterations = isset($options['iterations']) ? $options['iterations'] : 725;
$crypt_salt = '_' . base64_int_encode($iterations) . des_compat_salt(4);
$iterations = $options['iterations'];
$crypt_salt = '_' . base64_int_encode($iterations,4) . des_compat_salt(4);
} else if (($algo === PASSWORD_MD5) && defined('CRYPT_MD5')) {
// MD5 hashing with a twelve character salt starting with $1$
$crypt_salt = '$1$'.des_compat_salt(12).'$';
289,17 → 412,17
} else if (($algo === PASSWORD_BLOWFISH) && defined('CRYPT_BLOWFISH')) {
// Blowfish hashing with a salt as follows: "$2a$", "$2x$" or "$2y$", a two digit cost parameter, "$", and 22 characters from the alphabet "./0-9A-Za-z". Using characters outside of this range in the salt will cause crypt() to return a zero-length string. The two digit cost parameter is the base-2 logarithm of the iteration count for the underlying Blowfish-based hashing algorithm and must be in range 04-31, values outside this range will cause crypt() to fail. "$2x$" hashes are potentially weak; "$2a$" hashes are compatible and mitigate this weakness. For new hashes, "$2y$" should be used.
$algo = '$2y$'; // most secure
$cost = isset($options['cost']) ? $options['cost'] : 10;
$cost = $options['cost'];
$crypt_salt = $algo.str_pad($cost,2,'0',STR_PAD_LEFT).'$'.des_compat_salt(22).'$';
} else if (($algo === PASSWORD_SHA256) && defined('CRYPT_SHA256')) {
// SHA-256 hash with a sixteen character salt prefixed with $5$. If the salt string starts with 'rounds=<N>$', the numeric value of N is used to indicate how many times the hashing loop should be executed, much like the cost parameter on Blowfish. The default number of rounds is 5000, there is a minimum of 1000 and a maximum of 999,999,999. Any selection of N outside this range will be truncated to the nearest limit.
$algo = '$5$';
$rounds = isset($options['rounds']) ? $options['rounds'] : 5000;
$rounds = $options['rounds'];
$crypt_salt = $algo.'rounds='.$rounds.'$'.des_compat_salt(16).'$';
} else if (($algo === PASSWORD_SHA512) && defined('CRYPT_SHA512')) {
// SHA-512 hash with a sixteen character salt prefixed with $6$. If the salt string starts with 'rounds=<N>$', the numeric value of N is used to indicate how many times the hashing loop should be executed, much like the cost parameter on Blowfish. The default number of rounds is 5000, there is a minimum of 1000 and a maximum of 999,999,999. Any selection of N outside this range will be truncated to the nearest limit.
$algo = '$6$';
$rounds = isset($options['rounds']) ? $options['rounds'] : 5000;
$rounds = $options['rounds'];
$crypt_salt = $algo.'rounds='.$rounds.'$'.des_compat_salt(16).'$';
}
 
316,10 → 439,10
} else if ($algo === PASSWORD_VTS_MCF1) {
// Algorithms: PASSWORD_VTS_MCF1
$ver = '1';
$algo = isset($options['algo']) ? $options['algo'] : 'sha3-512';
$mode = isset($options['mode']) ? $options['mode'] : 'ps';
$iterations = isset($options['iterations']) ? $options['iterations'] : 0/*default*/;
$salt_len = isset($options['salt_length']) ? $options['salt_length'] : 50;
$algo = $options['algo'];
$mode = $options['mode'];
$iterations = $options['iterations'];
$salt_len = isset($options['salt_length']) ? $options['salt_length'] : 50; // Note: salt_length is not a MCF option! It's just a hint for vts_password_hash()
$salt = random_bytes_ex($salt_len, true, true);
return vts_crypt_hash($algo, $password, $salt, $ver, $mode, $iterations);
} else {
331,6 → 454,62
}
}
 
/** This function replaces password_needs_rehash() by adding additional algorithms
* supported by vts_password_hash().
* @param string $hash The current hash
* @param string|int|null $algo Desired new default algo
* @param array $options Desired new default options
* @return bool True if algo or options of the current hash don't match the current desired values ($algo and $options), otherwise false.
*/
function vts_password_needs_rehash($hash, $algo, $options=array()) {
$options = vts_password_fill_default_options($algo, $options);
 
$info = vts_password_get_info($hash);
$algo2 = $info['algo'];
$options2 = $info['options'];
 
// Check if algorithm matches
if ($algo !== $algo2) return true;
 
if (vts_crypt_version($hash) == '1') {
if (isset($options['salt_length'])) {
// For VTS MCF 1.0, salt_length is a valid option for vts_password_hash(),
// but it is not a valid option inside the MCF options
// and it is not a valid option for vts_password_get_info().
unset($options['salt_length']);
}
 
// iterations=0 means: Default, depending on the algo
if (($options2['mode'] == PASSWORD_VTS_MCF1_MODE_PBKDF2) && ($options['iterations'] == 0/*default*/)) {
$algo = $options2['algo'];
$userland = !hash_pbkdf2_supported_natively($algo) && str_starts_with($algo, 'sha3-') && method_exists('\bb\Sha3\Sha3', 'hash_pbkdf2');
$options['iterations'] = _default_iterations($algo, $userland);
}
}
 
// Check if options match
if (count($options) !== count($options2)) return true;
foreach ($options as $name => $val) {
if ($options2[$name] != $val) return true;
}
return false;
}
 
/** This function extends password_verify() by adding ViaThinkSoft Modular Crypt Format 1.0.
* @param string $password to be checked
* @param string $hash Hash created by crypt(), password_hash(), or vts_password_hash().
* @return bool true if password is valid
*/
function vts_password_verify($password, $hash): bool {
if (vts_crypt_version($hash) != '0') {
// Hash created by vts_password_hash(), or vts_crypt_hash()
return vts_crypt_verify($password, $hash);
} else {
// Hash created by vts_password_hash(), password_hash(), or crypt()
return password_verify($password, $hash);
}
}
 
// --- Part 4: Useful functions required by the crypt-functions
 
define('BASE64_RFC4648_ALPHABET', '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz+/');
347,7 → 526,7
return $salt;
}
 
function base64_int_encode($num) {
function base64_int_encode($num, $len) {
// https://stackoverflow.com/questions/15534982/which-iteration-rules-apply-on-crypt-using-crypt-ext-des
$alphabet_raw = BASE64_CRYPT_ALPHABET;
$alphabet = str_split($alphabet_raw);
359,9 → 538,17
$arr[] = $alphabet[$rem];
}
$string = implode($arr);
return str_pad($string, 4, '.', STR_PAD_RIGHT);
return str_pad($string, $len, '.', STR_PAD_RIGHT);
}
 
function base64_int_decode($base64) {
$num = 0;
for ($i=strlen($base64)-1;$i>=0;$i--) {
$num += strpos(BASE64_CRYPT_ALPHABET, $base64[$i])*pow(strlen(BASE64_CRYPT_ALPHABET),$i);
}
return $num;
}
 
function crypt_radix64_encode($str) {
$x = $str;
$x = base64_encode($x);
399,30 → 586,98
return hash_supported_natively($algo);
}
 
function vts_password_fill_default_options($algo, $options) {
if ($algo === PASSWORD_STD_DES) {
// No options
} else if ($algo === PASSWORD_EXT_DES) {
if (!isset($options['iterations'])) {
$options['iterations'] = PASSWORD_EXT_DES_DEFAULT_ITERATIONS;
}
} else if ($algo === PASSWORD_MD5) {
// No options
} else if ($algo === PASSWORD_BLOWFISH) {
if (!isset($options['cost'])) {
$options['cost'] = PASSWORD_BLOWFISH_DEFAULT_COST;
}
} else if ($algo === PASSWORD_SHA256) {
if (!isset($options['rounds'])) {
$options['rounds'] = PASSWORD_SHA256_DEFAULT_ROUNDS;
}
} else if ($algo === PASSWORD_SHA512) {
if (!isset($options['rounds'])) {
$options['rounds'] = PASSWORD_SHA512_DEFAULT_ROUNDS;
}
} else if ($algo === PASSWORD_VTS_MCF1) {
if (!isset($options['algo'])) {
$options['algo'] = PASSWORD_VTS_MCF1_DEFAULT_ALGO;
}
if (!isset($options['mode'])) {
$options['mode'] = PASSWORD_VTS_MCF1_DEFAULT_MODE;
}
if ($options['mode'] == PASSWORD_VTS_MCF1_MODE_PBKDF2) {
if (!isset($options['iterations'])) {
$options['iterations'] = PASSWORD_VTS_MCF1_DEFAULT_ITERATIONS;
}
} else {
unset($options['iterations']);
}
}
return $options;
}
 
// --- Part 5: Selftest
 
/*
for ($i=0; $i<9999; $i++) {
assert($i===base64_int_decode(base64_int_encode($i,4)));
}
 
$rnd = random_bytes_ex(50, true, true);
assert(crypt_radix64_decode(crypt_radix64_encode($rnd)) === $rnd);
 
$password = random_bytes_ex(20, false, true);
assert(vts_password_verify($password,vts_password_hash($password, PASSWORD_STD_DES)));
assert(vts_password_verify($password,vts_password_hash($password, PASSWORD_EXT_DES)));
assert(vts_password_verify($password,vts_password_hash($password, PASSWORD_MD5)));
assert(vts_password_verify($password,vts_password_hash($password, PASSWORD_BLOWFISH)));
assert(vts_password_verify($password,vts_password_hash($password, PASSWORD_SHA256)));
assert(vts_password_verify($password,vts_password_hash($password, PASSWORD_SHA512)));
assert(vts_password_verify($password,$debug = vts_password_hash($password, PASSWORD_VTS_MCF1, array(
 
assert(vts_password_verify($password,$dummy = vts_password_hash($password, PASSWORD_STD_DES)));
//echo "'$dummy' ".strlen($dummy)."\n";
//var_dump(vts_password_get_info($dummy));
 
assert(vts_password_verify($password,$dummy = vts_password_hash($password, PASSWORD_EXT_DES)));
//echo "'$dummy' ".strlen($dummy)."\n";
//var_dump(vts_password_get_info($dummy));
 
assert(vts_password_verify($password,$dummy = vts_password_hash($password, PASSWORD_MD5)));
//echo "'$dummy' ".strlen($dummy)."\n";
//var_dump(vts_password_get_info($dummy));
 
assert(vts_password_verify($password,$dummy = vts_password_hash($password, PASSWORD_BLOWFISH)));
//echo "'$dummy' ".strlen($dummy)."\n";
//var_dump(vts_password_get_info($dummy));
 
assert(vts_password_verify($password,$dummy = vts_password_hash($password, PASSWORD_SHA256)));
//echo "'$dummy' ".strlen($dummy)."\n";
//var_dump(vts_password_get_info($dummy));
 
assert(vts_password_verify($password,$dummy = vts_password_hash($password, PASSWORD_SHA512)));
//echo "'$dummy' ".strlen($dummy)."\n";
//var_dump(vts_password_get_info($dummy));
 
assert(vts_password_verify($password,$dummy = vts_password_hash($password, PASSWORD_VTS_MCF1, array(
'algo' => 'sha3-512',
'mode' => 'pbkdf2',
'iterations' => 5000
'iterations' => 0
))));
echo "$debug\n";
assert(vts_password_verify($password,vts_password_hash($password, PASSWORD_DEFAULT)));
assert(vts_password_verify($password,vts_password_hash($password, PASSWORD_BCRYPT)));
if (defined('PASSWORD_ARGON2I'))
assert(vts_password_verify($password,vts_password_hash($password, PASSWORD_ARGON2I)));
if (defined('PASSWORD_ARGON2ID'))
assert(vts_password_verify($password,vts_password_hash($password, PASSWORD_ARGON2ID)));
echo "OK, Password $password\n";
*/
//echo "'$dummy' ".strlen($dummy)."\n";
//var_dump(vts_password_get_info($dummy));
assert(false===vts_password_needs_rehash($dummy,PASSWORD_VTS_MCF1,array(
'salt_length' => 51,
'algo' => 'sha3-512',
'mode' => 'pbkdf2',
'iterations' => 0
)));
assert(true===vts_password_needs_rehash($dummy,PASSWORD_VTS_MCF1,array(
'salt_length' => 50,
'algo' => 'sha3-256',
'mode' => 'pbkdf2',
'iterations' => 0
)));
 
echo "OK, password $password\n";