diff --git a/tools/crypto/crypto.go b/tools/crypto/crypto.go
index 9f897b0cb..6a3380283 100644
--- a/tools/crypto/crypto.go
+++ b/tools/crypto/crypto.go
@@ -1,4 +1,5 @@
 // License: GPLv3 Copyright: 2022, Kovid Goyal, <kovid at kovidgoyal.net>
+// TODO: Move to crypto/ecdh with go >= 1.20
 
 package crypto