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use random_int if it is available

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This commit is contained in:
David Goodwin
2018-04-29 20:51:48 +01:00
parent 0d211949c9
commit 7c0cb82be8
1 changed files with 12 additions and 2 deletions
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14
functions.inc.php
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@ -1116,10 +1116,20 @@ function _php_crypt_generate_crypt_salt($hash_type='MD5') {
// used for php_crypt method
function _php_crypt_random_string($characters, $length) {
$random_int_exists = true;
if(!function_exists('random_int')) {
$random_int_exists = false;
}
$string = '';
for ($p = 0; $p < $length; $p++) {
// should really use a stronger randomness source
$string .= $characters[mt_rand(0, strlen($characters)-1)];
if($random_int_exists) {
$string .= $characters[random_int(0, strlen($characters) -1)];
}
else {
// should really use a stronger randomness source
$string .= $characters[mt_rand(0, strlen($characters) - 1)];
}
}
return $string;
}