diff --git a/inc/functions/hide.php b/inc/functions/hide.php
new file mode 100644
index 00000000..bf972751
--- /dev/null
+++ b/inc/functions/hide.php
@@ -0,0 +1,6 @@
+<?php
+namespace Vichan\Functions\Hide;
+
+function secure_hash(string $data, bool $binary): string {
+	return \hash('tiger160,3', $data, $binary);
+}