From 0c9aed3901c5d865343b71fd51ce5a3319d5f793 Mon Sep 17 00:00:00 2001
From: imduchuyyy <duchuy.124dk@gmail.com>
Date: Tue, 25 Jun 2024 17:56:33 +0700
Subject: [PATCH] Update s if s > n/2

---
 src/WebAuthn.sol | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/WebAuthn.sol b/src/WebAuthn.sol
index 0df8506..dc0098d 100644
--- a/src/WebAuthn.sol
+++ b/src/WebAuthn.sol
@@ -109,7 +109,7 @@ library WebAuthn {
     {
         if (webAuthnAuth.s > _P256_N_DIV_2) {
             // guard against signature malleability
-            return false;
+            webAuthnAuth.s = FCL_Elliptic_ZZ.n - webAuthnAuth.s;
         }
 
         // 11. Verify that the value of C.type is the string webauthn.get.