def main():
global group
group = PairingGroup('BN256')
chch.group = group
hess.group = group
(g2, alpha, P) = chch.setup()
pklist = {}
sklist = {}
for z in range(0, N):
(pklist[z], sklist[z]) = chch.keygen(alpha, "test" + str(z))
Mlist = ["test" + str(z) for z in range(0, N)]
S1clist = {}
S2clist = {}
for z in range(0, N):
(S1clist[z], S2clist[z]) = chch.sign(pklist[z], sklist[z], Mlist[z])
assert chch.verify(P, g2, pklist[z], Mlist[z], S1clist[z], S2clist[z]), "invalid signature generated"
print("sign & verify for chch: ", z)
S1hlist = {}
S2hlist = {}
for z in range(0, N):
(S1hlist[z], S2hlist[z]) = hess.sign(pklist[z], sklist[z], Mlist[z], g2)
assert hess.verify(P, g2, pklist[z], Mlist[z], S1hlist[z], S2hlist[z]), "invalid signature generated"
print("sign & verify for hess: ", z)
assert verify(S1hlist[0], S2hlist[0], S1clist[0], S2clist[0], pklist[0], P, g2, Mlist[0]), "indiv. verification failed for chch-hess combo"
print("Successful combo verification!!!")
incorrectIndices = batchverify(g2, P, S1clist, pklist, Mlist, S2clist, S2hlist, S1hlist, [])
print("incorrectIndices: ", incorrectIndices)
def genValidSignature(message, index, pk, sk, P, g2):
sig1 = hess.sign(pk[index], sk[index], message, g2)
(S1h, S2h) = sig1
assert hess.verify(P, g2, pk[index], message, S1h, S2h)
sig2 = chch.sign(pk[index], sk[index], message)
(S1c, S2c) = sig2
assert chch.verify(P, g2, pk[index], message, S1c, S2c)
return (S1c, S2c, S1h, S2h)
def genValidSignature(message, index, pk, sk, P, g2):
sig1 = hess.sign(pk[index], sk[index], message, g2)
(S1h, S2h) = sig1
assert hess.verify(P, g2, pk[index], message, S1h, S2h)
sig2 = chch.sign(pk[index], sk[index], message)
(S1c, S2c) = sig2
assert chch.verify(P, g2, pk[index], message, S1c, S2c)
return (S1c, S2c, S1h, S2h)
def genValidSignature(message, index, pk, sk, P, g2):
sig = hess.sign(pk[index], sk[index], message, g2)
(S1, S2) = sig
assert hess.verify(P, g2, pk[index], message, S1, S2)
return sig
def genValidSignature(message, index, pk, sk, P, g2):
sig = hess.sign(pk[index], sk[index], message, g2)
(S1, S2) = sig
assert hess.verify(P, g2, pk[index], message, S1, S2)
return sig