def __init__(self, crypto: Crypto, key: bytes) -> None:
"""Constructor."""
# Set the Crypto class.
self.crypto: Crypto = crypto
# Set the keys.
self.private_spend_key: bytes = ed.encodeint(ed.decodeint(key) % ed.l)
self.public_spend_key: bytes = ed.public_from_secret(
self.private_spend_key)
self.private_view_key: bytes = ed.Hs(self.private_spend_key)
self.public_view_key: bytes = ed.public_from_secret(
self.private_view_key)
def generate_input_key(
self,
output: OutputInfo,
private_view_key: bytes,
private_spend_key: bytes,
) -> bytes:
"""Generate the one-time private key associated with an input."""
if isinstance(output, MoneroOutputInfo):
return ed.encodeint((ed.decodeint(output.amount_key) +
ed.decodeint(private_spend_key)) % ed.l)
else:
raise Exception("MoneroCrypto handed a non-Monero OutputInfo.")