def phase_1_bidder_init(self, value=10):
pi = DLProof(DLP.g, self.x).to_sol()
tx_hash = self.auction_contract.functions.phase1BidderInit(
BigNumber.from_py(self.y).to_sol(), pi).transact({
'from': self.addr,
'value': value,
'gas': gas_limit
})
tx_receipt = self.web3.eth.waitForTransactionReceipt(tx_hash)
self.gasUsed += tx_receipt['gasUsed']
tx_print(tx_receipt, "B{}".format(self.index))
def phase_4_m_1st_price_decision(self):
jM = self.auction_contract.functions.jM().call()
ct = Ct.from_sol(self.auction_contract.functions.bidCA(jM).call())
ux, ux_inv, pi = ct.decrypt_to_sol(self.x)
tx_hash = self.auction_contract.functions.phase4M1stPriceDecision(
ux, ux_inv, pi).transact({
'from': self.addr,
'gas': gas_limit
})
tx_receipt = self.web3.eth.waitForTransactionReceipt(tx_hash)
self.gasUsed += tx_receipt['gasUsed']
tx_print(tx_receipt, "B{}".format(self.index))
def phase_6_payment(self):
jM = self.auction_contract.functions.jM().call()
price = self.auction_contract.functions.price(jM - 1).call()
tx_hash = self.auction_contract.functions.phase6Payment().transact({
'from':
self.addr,
'value':
price,
'gas':
gas_limit
})
tx_receipt = self.web3.eth.waitForTransactionReceipt(tx_hash)
self.gasUsed += tx_receipt['gasUsed']
tx_print(tx_receipt, "B{} payed = {}".format(self.index, price))
def phase_5_winner_decision(self):
y = self.auction_contract.functions.elgamalY().call()
y = BigNumber.from_sol(y).to_py()
jM = self.auction_contract.functions.jM().call()
bidA = [self.bids[-1]]
for i in reversed(range(len(self.bids) - 1)):
bidA = [self.bids[i].mul(bidA[0])] + bidA
piM_sols = CtMProof(bidA[jM].c, y, bidA[jM].r, 1).to_sol()
tx_hash = self.auction_contract.functions.phase5WinnerDecision(
piM_sols).transact({
'from': self.addr,
'gas': gas_limit
})
tx_receipt = self.web3.eth.waitForTransactionReceipt(tx_hash)
self.gasUsed += tx_receipt['gasUsed']
tx_print(tx_receipt, "B{}".format(self.index))
def phase_3_m_1st_price_decision_prepare(self):
price_length = self.auction_contract.functions.priceLength().call()
bidCs = [
Ct.from_sol(self.auction_contract.functions.bidC(i).call())
for i in range(price_length)
]
a = randrange(1, DLP.q)
pi_sols = [SameDLProof(bidC.u, bidC.c, a).to_sol() for bidC in bidCs]
ctA_sols = [bidC.pow(a).to_sol() for bidC in bidCs]
tx_hash = self.auction_contract.functions.phase3M1stPriceDecisionPrepare(
ctA_sols, pi_sols).transact({
'from': self.addr,
'gas': gas_limit
})
tx_receipt = self.web3.eth.waitForTransactionReceipt(tx_hash)
self.gasUsed += tx_receipt['gasUsed']
tx_print(tx_receipt, "B{}".format(self.index))
def deploy(web3, seller):
compiled_sol = compile()
bytecode = compiled_sol['contracts'][entry_file][entry_class]['evm'][
'bytecode']['object']
abi = json.loads(compiled_sol['contracts'][entry_file][entry_class]
['metadata'])['output']['abi']
auction_contract = web3.eth.contract(abi=abi, bytecode=bytecode)
tx_hash = auction_contract.constructor(seller.m, seller.zm_inv,
seller.price, seller.time_limit,
seller.balance_limit).transact({
'from':
seller.addr,
'gas':
gas_limit
})
tx_receipt = web3.eth.waitForTransactionReceipt(tx_hash)
tx_print(tx_receipt, "Contract created")
# print("addr = {}".format(tx_receipt.contractAddress))
auction_contract.address = tx_receipt.contractAddress
return web3.eth.contract(address=tx_receipt.contractAddress, abi=abi)
def phase_2_bidder_submit_bid(self, bid_price_j, value=10):
self.bid_price_j = bid_price_j
y = self.auction_contract.functions.elgamalY().call()
y = BigNumber.from_sol(y).to_py()
price_length = self.auction_contract.functions.priceLength().call()
self.bids = []
for j in range(price_length):
self.bids.append(Ct.from_vote(j == bid_price_j, y))
bid_pi01_sols = [bid.to_sol_with_01_proof() for bid in self.bids]
bid, pi01 = list(map(list, list(zip(*bid_pi01_sols))))
bidProd = functools.reduce(lambda ct1, ct2: ct1.mul(ct2), self.bids)
piM = CtMProof(bidProd.c, y, bidProd.r, 1).to_sol()
tx_hash = self.auction_contract.functions.phase2BidderSubmitBid(
bid, pi01, piM).transact({
'from': self.addr,
'gas': gas_limit
})
tx_receipt = self.web3.eth.waitForTransactionReceipt(tx_hash)
self.gasUsed += tx_receipt['gasUsed']
tx_print(tx_receipt,
"B{} bid_price_j = {}".format(self.index, bid_price_j))