From d9556df292458844ed1691e50d77cb1122a2990b Mon Sep 17 00:00:00 2001
From: Ishbir Singh <ishbir@ishbir.com>
Date: Mon, 25 May 2015 16:42:43 +0530
Subject: [PATCH] Mitigate timing attacks while using btcec.Decrypt.

---
 btcec/ciphering.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/btcec/ciphering.go b/btcec/ciphering.go
index 959240b3..d1a6db2a 100644
--- a/btcec/ciphering.go
+++ b/btcec/ciphering.go
@@ -178,7 +178,7 @@ func Decrypt(priv *PrivateKey, in []byte) ([]byte, error) {
 	hm := hmac.New(sha256.New, keyM)
 	hm.Write(in[:len(in)-sha256.Size]) // everything is hashed
 	expectedMAC := hm.Sum(nil)
-	if !bytes.Equal(messageMAC, expectedMAC) {
+	if !hmac.Equal(messageMAC, expectedMAC) {
 		return nil, ErrInvalidMAC
 	}