Fix bls verification when there are no messages

Signed-off-by: Jakub Sztandera <kubuxu@protocol.ai>
2020-07-22 21:59:05 +02:00 · 2020-07-22 21:59:05 +02:00 · 8fb3f7e40e
commit 8fb3f7e40e
parent 78e7e59381
1 changed files with 4 additions and 0 deletions
--- a/chain/sync.go
+++ b/chain/sync.go
@ -1057,6 +1057,10 @@ func (syncer *Syncer) verifyBlsAggregate(ctx context.Context, sig *crypto.Signat
 		trace.Int64Attribute("msgCount", int64(len(msgs))),
 	)

+	if len(msgs) == 0 {
+		return nil
+	}
+
 	bmsgs := make([]bls.Message, len(msgs))
 	for i, m := range msgs {
 		bmsgs[i] = m.Bytes()