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
