1 files changed, 15 insertions, 0 deletions
diff --git a/includes/util/random.inc b/includes/util/random.inc
new file mode 100644
index 0000000..b6e7905
--- /dev/null
+++ b/includes/util/random.inc
@@ -0,0 +1,15 @@
+<?php
+
+/**
+ * @throws Exception
+ */
+function random($length = 13): string {
+    if (function_exists("random_bytes")) {
+        $bytes = random_bytes(ceil($length / 2));
+    } elseif (function_exists("openssl_random_pseudo_bytes")) {
+        $bytes = openssl_random_pseudo_bytes(ceil($length / 2));
+    } else {
+        throw new Exception("No cryptographically secure random function available");
+    }
+    return substr(bin2hex($bytes), 0, $length);
+}
+\ No newline at end of file