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anzz1/compat_random.php

Last active February 4, 2022 04:14
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compat_random.php
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compat_random.php
<?php
function bytelen($str) {
if (defined('MB_OVERLOAD_STRING') && (ini_get('mbstring.func_overload') & MB_OVERLOAD_STRING) && extension_loaded('mbstring')) {
return mb_strlen($str, '8bit');
} else {
return strlen($str);
}
}
if (!is_callable('random_bytes')) {
if (is_callable('openssl_random_pseudo_bytes')) {
function random_bytes($b) {
$rand = openssl_random_pseudo_bytes($b);
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
} else if (is_callable('mcrypt_create_iv')) {
if (DIRECTORY_SEPARATOR === '/') {
function random_bytes($b) {
$rand = mcrypt_create_iv($b, MCRYPT_DEV_URANDOM);
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
} else {
function random_bytes($b) {
$rand = mcrypt_create_iv($b);
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
}
} else if (DIRECTORY_SEPARATOR === '/') {
$stat = @stat('/dev/urandom');
if ($stat !== false && ($stat['mode'] & 0170000) === 020000) {
function random_bytes($b) {
$rand = @file_get_contents('/dev/urandom', false, null, 0, $b);
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
}
} else if (class_exists('\\COM')) {
try {
$util = new COM('CAPICOM.Utilities.1');
$method = array($util, 'GetRandom');
if (is_callable($method)) {
function random_bytes($b) {
$util = new \COM('CAPICOM.Utilities.1');
$rand = base64_decode($util->GetRandom($b,0));
$rand = ($rand !== false) ? str_pad($rand, $b, chr(0)) : false;
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
}
} catch (Exception $e) { }
}
if (!is_callable('random_bytes')) {
if (is_callable('gmp_random_bits')) {
function random_bytes($b) {
$rand = '';
for ($i = 1; $i <= $b; $i++) {
$rand .= chr(gmp_intval(gmp_random_bits(8)));
}
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
} else if (is_callable('mt_rand')) {
function random_bytes($b) {
$rand = '';
for ($i = 1; $i <= $b; $i++) {
$rand .= chr(mt_rand(0,255));
}
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
} else {
function random_bytes($b) {
$rand = '';
for ($i = 1; $i <= $b; $i++) {
$rand .= chr(rand(0,255));
}
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
}
}
}
if (!is_callable('random_int')) {
if (is_callable('gmp_random_range')) {
function random_int($min, $max) {
return gmp_intval(gmp_random_range($min, $max));
}
} elseif (is_callable('mt_rand')) {
function random_int($min, $max) {
mt_srand(random_bytes(3));
return mt_rand($min, $max);
}
} elseif (is_callable('rand')) {
function random_int($min, $max) {
srand(random_bytes(3));
return rand($min, $max);
}
}
}
?>
Raw
test_random.php
<?php
header("Content-Type: text/plain");
function bytelen($str) {
if (defined('MB_OVERLOAD_STRING') && (ini_get('mbstring.func_overload') & MB_OVERLOAD_STRING) && extension_loaded('mbstring')) {
return mb_strlen($str, '8bit');
} else {
return strlen($str);
}
}
if (is_callable('random_bytes')) {
echo "random_bytes: ".random_bytes(32)."\n\n";
} else {
echo "random_bytes: not supported\n\n";
}
if (is_callable('gmp_random_bits')) {
function gmp_bytes($b) {
$rand = '';
for ($i = 1; $i <= $b; $i++) {
$rand .= chr(gmp_intval(gmp_random_bits(8)));
}
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
echo "gmp_random_bits: ".gmp_bytes(32)."\n\n";
} else {
echo "gmp_random_bits: not supported\n\n";
}
if (is_callable('openssl_random_pseudo_bytes')) {
function openssl_bytes($b) {
$rand = openssl_random_pseudo_bytes($b);
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
echo "openssl_random_pseudo_bytes: ".openssl_bytes(32)."\n\n";
} else {
echo "openssl_random_pseudo_bytes: not supported\n\n";
}
if (is_callable('mcrypt_create_iv')) {
if (DIRECTORY_SEPARATOR === '/') {
function mcrypt_bytes($b) {
$rand = mcrypt_create_iv($b, MCRYPT_DEV_URANDOM);
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
} else {
function mcrypt_bytes($b) {
$rand = mcrypt_create_iv($b);
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
}
echo "mcrypt_create_iv: ".mcrypt_bytes(32)."\n\n";
} else {
echo "mcrypt_create_iv: not supported\n\n";
}
if (DIRECTORY_SEPARATOR === '/') {
$stat = @stat('/dev/urandom');
if ($stat !== false && ($stat['mode'] & 0170000) === 020000) {
function urandom_bytes($b) {
$rand = @file_get_contents('/dev/urandom', false, null, 0, $b);
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
}
echo "/dev/urandom: ".urandom_bytes(32)."\n\n";
} else {
echo "/dev/urandom: not supported\n\n";
}
if (class_exists('\\COM')) {
try {
$util = new COM('CAPICOM.Utilities.1');
$method = array($util, 'GetRandom');
if (is_callable($method)) {
function com_bytes($b) {
$util = new \COM('CAPICOM.Utilities.1');
$rand = base64_decode($util->GetRandom($b,0));
$rand = ($rand !== false) ? str_pad($rand, $b, chr(0)) : false;
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
echo "CAPICOM: ".com_bytes(32)."\n\n";
} else {
echo "CAPICOM: not supported\n\n";
}
} catch (Exception $e) {
echo "CAPICOM: not supported\n\n";
}
} else {
echo "CAPICOM: not supported\n\n";
}
if (is_callable('mt_rand')) {
function mt_rand_bytes($b) {
$rand = '';
for ($i = 1; $i <= $b; $i++) {
$rand .= chr(mt_rand(0,255));
}
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
echo "mt_rand(): ".mt_rand_bytes(32)."\n\n";
} else {
echo "mt_rand(): not supported\n\n";
}
function rand_bytes($b) {
$rand = '';
for ($i = 1; $i <= $b; $i++) {
$rand .= chr(rand(0,255));
}
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
echo "rand(): ".rand_bytes(32)."\n\n";
?>
Raw
test_random_speed.php
<?php
header("Content-Type: text/plain");
function bytelen($str) {
if (defined('MB_OVERLOAD_STRING') && (ini_get('mbstring.func_overload') & MB_OVERLOAD_STRING) && extension_loaded('mbstring')) {
return mb_strlen($str, '8bit');
} else {
return strlen($str);
}
}
function exectime($name, $func) {
$bytes = 512;
$start_time = microtime(true);
$ret = $func($bytes);
$end_time = microtime(true);
$execution_time = ($end_time - $start_time);
echo "$name (".$execution_time."s): ".bin2hex($ret)."\n\n";
}
if (is_callable('random_bytes')) {
exectime('random_bytes', 'random_bytes');
} else {
echo "random_bytes: not supported\n\n";
}
if (is_callable('gmp_random_bits')) {
function gmp_bytes($b) {
$rand = '';
for ($i = 1; $i <= $b; $i++) {
$rand .= chr(gmp_intval(gmp_random_bits(8)));
}
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
exectime('gmp_random_bits', 'gmp_bytes');
} else {
echo "gmp_random_bits: not supported\n\n";
}
if (is_callable('openssl_random_pseudo_bytes')) {
function openssl_bytes($b) {
$rand = openssl_random_pseudo_bytes($b);
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
exectime('openssl_random_pseudo_bytes', 'openssl_bytes');
} else {
echo "openssl_random_pseudo_bytes: not supported\n\n";
}
if (is_callable('mcrypt_create_iv')) {
if (DIRECTORY_SEPARATOR === '/') {
function mcrypt_bytes($b) {
$rand = mcrypt_create_iv($b, MCRYPT_DEV_URANDOM);
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
} else {
function mcrypt_bytes($b) {
$rand = mcrypt_create_iv($b);
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
}
exectime('mcrypt_create_iv', 'mcrypt_bytes');
} else {
echo "mcrypt_create_iv: not supported\n\n";
}
if (DIRECTORY_SEPARATOR === '/') {
$stat = @stat('/dev/urandom');
if ($stat !== false && ($stat['mode'] & 0170000) === 020000) {
function urandom_bytes($b) {
$rand = @file_get_contents('/dev/urandom', false, null, 0, $b);
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
}
exectime('/dev/urandom', 'urandom_bytes');
} else {
echo "/dev/urandom: not supported\n\n";
}
if (class_exists('\\COM')) {
try {
$util = new COM('CAPICOM.Utilities.1');
$method = array($util, 'GetRandom');
if (is_callable($method)) {
function com_bytes($b) {
$util = new \COM('CAPICOM.Utilities.1');
$rand = base64_decode($util->GetRandom($b,0));
$rand = ($rand !== false) ? str_pad($rand, $b, chr(0)) : false;
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
exectime('CAPICOM', 'com_bytes');
} else {
echo "CAPICOM: not supported\n\n";
}
} catch (Exception $e) {
echo "CAPICOM: not supported\n\n";
}
} else {
echo "CAPICOM: not supported\n\n";
}
if (is_callable('mt_rand')) {
function mt_rand_bytes($b) {
$rand = '';
for ($i = 1; $i <= $b; $i++) {
$rand .= chr(mt_rand(0,255));
}
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
exectime('mt_rand()', 'mt_rand_bytes');
} else {
echo "mt_rand(): not supported\n\n";
}
function rand_bytes($b) {
$rand = '';
for ($i = 1; $i <= $b; $i++) {
$rand .= chr(rand(0,255));
}
return ($rand !== false && bytelen($rand) == $b) ? $rand : null;
}
exectime('rand()', 'rand_bytes');
?>
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