From e54739dc98b41eaeb375df5a92eea5b3e2909c57 Mon Sep 17 00:00:00 2001
From: narodnik <x@x.org>
Date: Wed, 17 Aug 2022 20:21:51 +0200
Subject: [PATCH] daod added forgotten file util.rs

---
 bin/daod/src/util.rs | 7 +++++++
 1 file changed, 7 insertions(+)
 create mode 100644 bin/daod/src/util.rs

diff --git a/bin/daod/src/util.rs b/bin/daod/src/util.rs
new file mode 100644
index 000000000..c790a664a
--- /dev/null
+++ b/bin/daod/src/util.rs
@@ -0,0 +1,7 @@
+use halo2_gadgets::poseidon::primitives as poseidon;
+use pasta_curves::pallas;
+
+pub fn poseidon_hash<const N: usize>(messages: [pallas::Base; N]) -> pallas::Base {
+    poseidon::Hash::<_, poseidon::P128Pow5T3, poseidon::ConstantLength<N>, 3, 2>::init()
+        .hash(messages)
+}