1 files changed, 2 insertions, 1 deletions
diff --git a/TODO.md b/TODO.md
index c232cfc..d25dceb 100644
--- a/TODO.md
+++ b/TODO.md
@@ -470,7 +470,8 @@
   - stuff from fips203ipd (barrett reduction parameters)
   - montgomery reduction:
     https://jeffhurchalla.com/2022/04/28/montgomery-redc-using-the-positive-inverse-mod-r/
-- signing: random (ecdsa), deterministic (eddsa), hedged (ml-dsa)
+- signing: random (ecdsa), deterministic (eddsa), hedged (ml-dsa, XEdDSA)
+  - https://signal.org/docs/specifications/xeddsa/
   - bad rng vs side-channel
   - rng: (ps3)
   - side channel: not just theoretical (roca)