def _check_rsig_data(state: State, rsig_data: MoneroTransactionRsigData):
"""
There are two types of monero ring confidential transactions:
1. RCTTypeFull = 1 (used if num_inputs == 1 && Borromean)
2. RCTTypeSimple = 2 (for num_inputs > 1 || !Borromean)
and four types of range proofs (set in `rsig_data.rsig_type`):
1. RangeProofBorromean = 0
2. RangeProofBulletproof = 1
3. RangeProofMultiOutputBulletproof = 2
4. RangeProofPaddedBulletproof = 3
The current code supports only HF9, HF10 thus TX type is always simple
and RCT algorithm is always Bulletproof.
"""
state.rsig_grouping = rsig_data.grouping
if rsig_data.rsig_type == 0:
raise ValueError("Borromean range sig not supported")
elif rsig_data.rsig_type not in (1, 2, 3):
raise ValueError("Unknown rsig type")
if state.output_count > 2:
state.rsig_offload = True
_check_grouping(state)
def _check_rsig_data(state: State, rsig_data: MoneroTransactionRsigData):
"""
There are two types of monero ring confidential transactions:
1. RCTTypeFull = 1 (used if num_inputs == 1)
2. RCTTypeSimple = 2 (for num_inputs > 1)
and four types of range proofs (set in `rsig_data.rsig_type`):
1. RangeProofBorromean = 0
2. RangeProofBulletproof = 1
3. RangeProofMultiOutputBulletproof = 2
4. RangeProofPaddedBulletproof = 3
"""
state.rsig_grouping = rsig_data.grouping
if rsig_data.rsig_type == 0:
state.rsig_type = RsigType.Borromean
elif rsig_data.rsig_type in (1, 2, 3):
state.rsig_type = RsigType.Bulletproof
else:
raise ValueError("Unknown rsig type")
# unintuitively RctType.Simple is used for more inputs
if state.input_count > 1 or state.rsig_type == RsigType.Bulletproof:
state.rct_type = RctType.Simple
else:
state.rct_type = RctType.Full
if state.rsig_type == RsigType.Bulletproof and state.output_count > 2:
state.rsig_offload = True
_check_grouping(state)
