def test_create(self):
with coconut_contract.test_service():
## create transaction
# init
init_transaction = coconut.init()
token = init_transaction['transaction']['outputs'][0]
# create instance
transaction = coconut.create(
(token,),
None,
None,
q,
t,
n,
callback,
vvk,
sig
)
## submit transaction
response = requests.post(
'http://127.0.0.1:5000/' + coconut_contract.contract_name
+ '/create', json=transaction_to_solution(transaction)
)
self.assertTrue(response.json()['success'])
def test_context(self):
with coconut_contract.test_service():
## create transaction
transaction = coconut.init()
## submit transaction
response = requests.post(
'http://127.0.0.1:5000/' + coconut_contract.contract_name
+ '/init', json=transaction_to_solution(transaction)
)
self.assertTrue(response.json()['success'])
def test_verify(self):
with coconut_contract.test_service():
## create transactions
# init
init_transaction = coconut.init()
token = init_transaction['transaction']['outputs'][0]
# create instance
create_transaction = coconut.create(
(token,),
None,
None,
q,
t,
n,
callback,
vvk,
sig
)
instance = create_transaction['transaction']['outputs'][1]
# request
request_transaction = coconut.request(
(instance,),
None,
None,
clear_m,
hidden_m,
pub
)
old_request = request_transaction['transaction']['outputs'][1]
# issue t signatures
for i in range(t):
transaction = coconut.issue(
(old_request,),
None,
None,
sk[i],
i
)
old_request = transaction['transaction']['outputs'][0]
# some crypto
# ------------------------------------
packet = loads(old_request)['sigs']
(indexes, packed_enc_sigs) = zip(*packet)
(h, packed_enc_epsilon) = zip(*packed_enc_sigs)
enc_epsilon = [(unpackG1(params,x[0]), unpackG1(params,x[1])) for x in packed_enc_epsilon]
dec_sigs = [(unpackG1(params,h[0]), elgamal_dec(params, priv, enc)) for enc in enc_epsilon]
aggr = aggregate_th_sign(params, dec_sigs)
aggr = randomize(params, aggr)
packed_sig = (pack(aggr[0]),pack(aggr[1]))
# ------------------------------------
# verify signature
start_time = time.time()
transaction = coconut.verify(
None,
(instance,),
(packed_sig,),
clear_m,
hidden_m
)
end_time = time.time(); print((end_time-start_time)*1000)
## submit t ransaction
response = requests.post(
'http://127.0.0.1:5000/' + coconut_contract.contract_name
+ '/verify', json=transaction_to_solution(transaction)
)
self.assertTrue(response.json()['success'])
print("\n\n=================== VERIFICATION ===================\n")
print(transaction['transaction']['returns'][0])
print("\n====================================================\n\n")
def test_issue(self):
with coconut_contract.test_service():
## create transactions
# init
init_transaction = coconut.init()
token = init_transaction['transaction']['outputs'][0]
# create instance
create_transaction = coconut.create(
(token,),
None,
None,
q,
t,
n,
callback,
vvk,
sig
)
instance = create_transaction['transaction']['outputs'][1]
# request
request_transaction = coconut.request(
(instance,),
None,
None,
clear_m,
hidden_m,
pub
)
old_request = request_transaction['transaction']['outputs'][1]
# issue a signatures
transaction = coconut.issue(
(old_request,),
None,
None,
sk[0],
0
)
old_request = transaction['transaction']['outputs'][0]
## submit transaction
response = requests.post(
'http://127.0.0.1:5000/' + coconut_contract.contract_name
+ '/issue', json=transaction_to_solution(transaction)
)
self.assertTrue(response.json()['success'])
# issue the other t-1 signatures
for i in range(1,t):
transaction = coconut.issue(
(old_request,),
None,
None,
sk[i],
i
)
old_request = transaction['transaction']['outputs'][0]
# some crypto - to show that this actually works
# ------------------------------------
packet = loads(old_request)['sigs']
(indexes, packed_enc_sigs) = zip(*packet)
(h, packed_enc_epsilon) = zip(*packed_enc_sigs)
enc_epsilon = [(unpackG1(params,x[0]), unpackG1(params,x[1])) for x in packed_enc_epsilon]
dec_sigs = [(unpackG1(params,h[0]), elgamal_dec(params, priv, enc)) for enc in enc_epsilon]
aggr = aggregate_th_sign(params, dec_sigs)
aggr = randomize(params, aggr)
(kappa, proof_v) = show_mix_sign(params, vvk, hidden_m)
print("\n\n=================== VERIFICATION ===================\n")
print(mix_verify(params, vvk, kappa, aggr, proof_v, clear_m))
print("\n====================================================\n\n")