def receive_secret(self, secret):
"""Receive the secret (preimage of hashed_secret),
validate it, if valid, update state, construct TX4 and sig
and send to Alice.
"""
dummy, verifying_hash = get_coinswap_secret(raw_secret=secret)
if not verifying_hash == self.hashed_secret:
return (False, "Received invalid coinswap secret.")
#Known valid; must be persisted in case recovery needed.
self.secret = secret
return (True, "OK")
def send_tx0id_hx_tx2sig(self):
self.secret, self.hashed_secret = get_coinswap_secret()
#any old junk
self.send("deadbeef:0", "beefdead", None)
return (True, "TX0id, H(X), TX2 sig pretend sent OK")