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-rw-r--r--phpBB/includes/functions.php4
1 files changed, 2 insertions, 2 deletions
diff --git a/phpBB/includes/functions.php b/phpBB/includes/functions.php
index 4aae84705b..3b3218a3aa 100644
--- a/phpBB/includes/functions.php
+++ b/phpBB/includes/functions.php
@@ -71,7 +71,7 @@ function set_var(&$result, $var, $type, $multibyte = false)
function gen_rand_string($num_chars = 8)
{
// [a, z] + [0, 9] = 36
- return substr(strtoupper(base_convert(unique_id(), 16, 36)), 0, $num_chars);
+ return substr(strtoupper(base_convert(bin2hex(random_bytes($num_chars)), 16, 36)), 0, $num_chars);
}
/**
@@ -82,7 +82,7 @@ function gen_rand_string($num_chars = 8)
*/
function gen_rand_string_friendly($num_chars = 8)
{
- $rand_str = unique_id();
+ $rand_str = bin2hex(random_bytes($num_chars));
// Remove Z and Y from the base_convert(), replace 0 with Z and O with Y
// [a, z] + [0, 9] - {z, y} = [a, z] + [0, 9] - {0, o} = 34