def add_multi_sign_transaction(tx: Transaction, m: int, pub_keys: list,
signer: Account):
"""
This interface is used to generate an Transaction object which has multi signature.
:param tx: a Transaction object which will be signed.
:param m: the amount of signer.
:param pub_keys: a list of public keys.
:param signer: an Account object which will sign the transaction.
:return: a Transaction object which has been signed.
"""
pub_keys = ProgramBuilder.sort_publickeys(pub_keys)
tx_hash = tx.hash256_bytes()
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 SDKException(
ErrorCode.param_err(
'the number of transaction signatures should not be over 16'
))
else:
for i in range(len(tx.sigs)):
if tx.sigs[i].public_keys == pub_keys:
if len(tx.sigs[i].sig_data) + 1 > len(pub_keys):
raise SDKException(
ErrorCode.param_err('too more sigData'))
if tx.sigs[i].M != m:
raise SDKException(ErrorCode.param_err('M error'))
tx.sigs[i].sig_data.append(sig_data)
return tx
sig = Sig(pub_keys, m, [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_bytes()
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 SDKException(
ErrorCode.param_err(
'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 SDKException(
ErrorCode.param_err('too more sigData'))
if tx.sigs[i].M != m:
raise SDKException(ErrorCode.param_err('M error'))
tx.sigs[i].sig_data.append(sig_data)
return tx
sig = Sig(pubkeys, m, [sig_data])
tx.sigs.append(sig)
return tx
def test_sort_public_key(self):
pub_keys = [acc.get_public_key(), acc2.get_public_key(), acc3.get_public_key()]
p = ProgramBuilder()
a = p.sort_publickeys(pub_keys)
self.assertEqual("03036c12be3726eb283d078dff481175e96224f0b0c632c7a37e10eb40fe6be889", a[0].hex())
self.assertEqual("020f9ce29ede5f0e271b67e61b2480dccc98c3aabad095c604ef9ab1d92a475c0a", a[1].hex())
self.assertEqual("035384561673e76c7e3003e705e4aa7aee67714c8b68d62dd1fb3221f48c5d3da0", a[2].hex())
def test_aa(self):
pubkeys = [
acc.get_public_key(),
acc2.get_public_key(),
acc3.get_public_key()
]
p = ProgramBuilder()
a = p.sort_publickeys(pubkeys)
print(a[0].hex())
print(a[1].hex())
print(a[2].hex())
