From 5a6c9699fa2d3b93a5da4724089cfe62fe279931 Mon Sep 17 00:00:00 2001
From: bnoieh <135800952+bnoieh@users.noreply.github.com>
Date: Thu, 30 Jan 2025 22:01:01 +0800
Subject: [PATCH] crypto: add IsOnCurve check

---
 crypto/crypto.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/crypto/crypto.go b/crypto/crypto.go
index 4d69768bc8..f3e30de4cc 100644
--- a/crypto/crypto.go
+++ b/crypto/crypto.go
@@ -197,6 +197,9 @@ func UnmarshalPubkey(pub []byte) (*ecdsa.PublicKey, error) {
 	if x == nil {
 		return nil, errInvalidPubkey
 	}
+	if !S256().IsOnCurve(x, y) {
+		return nil, errInvalidPubkey
+	}
 	return &ecdsa.PublicKey{Curve: S256(), X: x, Y: y}, nil
 }