def sign_transaction(self, tx: Transaction, signer: Account): tx_hash = tx.hash256() sig_data = signer.generate_signature(tx_hash, signer.get_signature_scheme()) sig = [Sig([signer.get_public_key()], 1, [sig_data])] tx.sigs = sig return tx
def add_sign_transaction(self, tx: Transaction, signer: Account): if tx.sigs == None or len(tx.sigs) == 0: tx.sigs = [] elif len(tx.sigs) >= Common.TX_MAX_SIG_SIZE: raise Exception( "the number of transaction signatures should not be over 16") tx_hash = tx.hash256() sig_data = signer.generate_signature(tx_hash, signer.get_signature_scheme()) sig = Sig([signer.serialize_public_key()], 1, [sig_data]) tx.sigs.append(sig) return tx
def add_multi_sign_transaction(self, tx: Transaction, m: int, pubkeys: [], signer: Account): pubkeys = ProgramBuilder.sort_publickeys(pubkeys) tx_hash = tx.hash256() sig_data = signer.generate_signature(tx_hash, signer.get_signature_scheme()) if tx.sigs is None or len(tx.sigs) == 0: tx.sigs = [] elif len(tx.sigs) >= Common.TX_MAX_SIG_SIZE: raise Exception( "the number of transaction signatures should not be over 16") else: for i in range(len(tx.sigs)): if tx.sigs[i].public_keys == pubkeys: if len(tx.sigs[i].sig_data) + 1 > len(pubkeys): raise Exception("too more sigData") if tx.sigs[i].M != m: raise Exception("M error") tx.sigs[i].sig_data.append(sig_data) return tx sig = Sig(pubkeys, m, [sig_data]) tx.sigs.append(sig) return tx