def test_witness(self):
secret = randsn()
items = list(range(1, 10))
my_item = items[3]
AkX = accumulate(items, secret)
W_x = witness(AkX, my_item, secret)
self.assertTrue(ismember(AkX, my_item, W_x, secret))
def deposit(self, value):
r = randsn()
s, e = schnorr_create(r, G1)
rG = ecmul(G1, r)
output = Note(self.converter.to_token(value), r)
receipt = self.contract.deposit(rG, s, e, Web3.toWei(value, "ether"))
y = self.contract.get_note(output.x())
assert output.C()[1].n == y
self.add_notes(output)
return receipt
def pedersen_c(v, r=None):
if r is None:
r = randsn()
return ecadd(ecmultiply(G1, r), ecmultiply(H(), v)), r
def test_borromean(self): msg = randsn() rings, pairs = borromean_ring_gen(n=4, m=4) e, s_mat = borromean_ring_sign(rings, pairs, msg=msg) self.assertTrue(borromean_ring_verify(rings, e, s_mat, msg=msg))
def pedersen_c(self, v, r=None):
from pysolcrypto.altbn128 import add, multiply, G1, randsn
if r is None:
r = randsn()
return add(multiply(G1,r), multiply(self.H(), v)), r
def test_borromean_with_bad_message(self): msg = randsn() rings, pairs = borromean_ring_gen(n=4, m=4) e, s_mat = borromean_ring_sign(rings, pairs, msg=msg) bad_msg = addmodp(msg,1) self.assertFalse(borromean_ring_verify(rings, e, s_mat, msg=bad_msg))