From 7fc3e37eb0203119aa4edcc512d0100525905223 Mon Sep 17 00:00:00 2001
From: poma <semenov.roma@gmail.com>
Date: Thu, 19 Aug 2021 13:19:12 +0300
Subject: [PATCH] extData constraint

---
 circuits/transaction.circom | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/circuits/transaction.circom b/circuits/transaction.circom
index 2b16caa..e083c1e 100644
--- a/circuits/transaction.circom
+++ b/circuits/transaction.circom
@@ -130,4 +130,7 @@ template Transaction(levels, nIns, nOuts, zeroLeaf) {
     for (var i = 0; i < levels - 1; i++) {
         treeUpdater.pathElements[i] <== outPathElements[i];
     }
+
+    signal extDataSquare;
+    extDataSquare <== extDataHash * extDataHash;
 }