From da5688fe53cd6f5c26a296099230455b7b45c4e5 Mon Sep 17 00:00:00 2001
From: Sahil-4555 <sahilsojitra4555@gmail.com>
Date: Wed, 14 Jan 2026 08:32:33 +0530
Subject: [PATCH] crypto/ecies: harden length check in Decrypt

---
 crypto/ecies/ecies.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crypto/ecies/ecies.go b/crypto/ecies/ecies.go
index 76f934c72d..9a892781f4 100644
--- a/crypto/ecies/ecies.go
+++ b/crypto/ecies/ecies.go
@@ -290,7 +290,7 @@ func (prv *PrivateKey) Decrypt(c, s1, s2 []byte) (m []byte, err error) {
 	switch c[0] {
 	case 2, 3, 4:
 		rLen = (prv.PublicKey.Curve.Params().BitSize + 7) / 4
-		if len(c) < (rLen + hLen + 1) {
+		if len(c) < (rLen + hLen + params.BlockSize) {
 			return nil, ErrInvalidMessage
 		}
 	default: