def sign(
self,
holder: int,
privKey: PrivateKey
) -> None:
self.holder = holder
self.signature = privKey.sign(self.signatureSerialize())
def mine(
self,
privKey: PrivateKey,
difficulty: int
) -> None:
self.header.proof = -1
while (
(self.header.proof == -1) or
((int.from_bytes(self.header.hash, "big") * difficulty) > int.from_bytes(bytes.fromhex("FF" * 32), "big"))
):
self.header.proof += 1
self.header.hash = RandomX(self.header.serializeHash())
self.header.signature = privKey.sign(self.header.hash).serialize()
self.header.hash = RandomX(self.header.hash + self.header.signature)