fix: tx size estimation for multisig

7 years ago · b751e5e7d3
1 changed files with 1 additions and 1 deletions
--- a/lib/transaction.py
+++ b/lib/transaction.py
@ -645,7 +645,7 @@ class Transaction:
        num_sig = txin.get('num_sig', 1)
        if estimate_size:
            pubkey_size = self.estimate_pubkey_size_for_txin(txin)
-            pk_list = ["00" * pubkey_size] * num_sig
+            pk_list = ["00" * pubkey_size] * len(txin.get('x_pubkeys', [None]))
            # we assume that signature will be 0x48 bytes long
            sig_list = [ "00" * 0x48 ] * num_sig
        else: