From 5554d96b86c6173699c768c4fd435f86692f4f4e Mon Sep 17 00:00:00 2001
From: Nick <148735107+nick-bisonai@users.noreply.github.com>
Date: Thu, 1 Aug 2024 16:49:45 +0900
Subject: [PATCH] fix: update proof related codes (#1981)

---
 node/pkg/chain/utils/utils.go   | 4 +++-
 node/pkg/dal/collector/utils.go | 2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/node/pkg/chain/utils/utils.go b/node/pkg/chain/utils/utils.go
index 7cfcb9448..1c1c59bda 100644
--- a/node/pkg/chain/utils/utils.go
+++ b/node/pkg/chain/utils/utils.go
@@ -626,7 +626,9 @@ func RecoverSigner(hash []byte, signature []byte) (address common.Address, err e
 	// use copy to avoid modifying the original signature
 	signatureCopy := make([]byte, len(signature))
 	copy(signatureCopy, signature)
-	signatureCopy[64] -= 27
+	if signatureCopy[64] == 27 || signatureCopy[64] == 28 {
+		signatureCopy[64] -= 27
+	}
 
 	pubKey, err := crypto.SigToPub(hash, signatureCopy)
 	if err != nil {
diff --git a/node/pkg/dal/collector/utils.go b/node/pkg/dal/collector/utils.go
index bdc2575e3..c0d653fcf 100644
--- a/node/pkg/dal/collector/utils.go
+++ b/node/pkg/dal/collector/utils.go
@@ -114,7 +114,7 @@ func removeDuplicateProof(proof []byte) []byte {
 		uniqueProofs[string(p)] = p
 	}
 
-	result := make([][]byte, 0, len(uniqueProofs)*65)
+	result := make([][]byte, 0, len(uniqueProofs))
 	for _, p := range uniqueProofs {
 		result = append(result, p)
 	}