diff --git a/sign.sh b/sign.sh
new file mode 100755
index 0000000..d2fb11d
--- /dev/null
+++ b/sign.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+
+for i in *.zst;
+do
+    gpg --detach-sign --output "$i.sig" "$i"
+done