def insert(self, node): # as server
n = self.root
if n == None:
node.value = node.value[1] # input right cihper
self.root = node # first time inset cipher
return
while True:
if tife.decrypt(pp, node.value[0],
n.value) == 1: # this is compare
if n.left == None:
node.parent = n
n.left = node
node.value = node.value[1] # right cipher
break
else:
n = n.left
if tife.decrypt(pp, node.value[0], n.value) == 0: # compare+
if n.right == None:
n.parent = n
n.right = node
node.value = node.value[1] # right cipher
break
else:
n = n.right
def bench_tife(N, group_name, iter=10, simulated=False):
f = lambda x, y: 1 if x < y else 0
setup_a = time.time()
(pp, sk) = tife.setup(N, f, group_name, simulated)
setup_b = time.time()
L = []
for index in range(iter):
x = random.randint(0, N - 1)
y = random.randint(0, N - 1)
encryptL_a = time.time()
ctx = tife.encryptL(sk, x)
encryptL_b = time.time()
encryptR_a = time.time()
cty = tife.encryptR(sk, y)
encryptR_b = time.time()
decrypt_a = time.time()
result = tife.decrypt(pp, ctx, cty)
decrypt_b = time.time()
ctsize = get_ct_size(cty)
L.append((encryptL_b - encryptL_a, encryptR_b - encryptR_a,
decrypt_b - decrypt_a, ctsize))
print("raw runtimes for each iteration: ", L)
return (setup_b - setup_a, list_tuple_mean(L))
def bench_tife(N, group_name, iter = 10, simulated = False):
f = lambda x,y: 1 if x < y else 0
setup_a = time.time()
(pp, sk) = tife.setup(N, f, group_name, simulated)
setup_b = time.time()
L = []
for index in range(iter):
x = random.randint(0, N-1)
y = random.randint(0, N-1)
encryptL_a = time.time()
ctx = tife.encryptL(sk, x)
encryptL_b = time.time()
encryptR_a = time.time()
cty = tife.encryptR(sk, y)
encryptR_b = time.time()
decrypt_a = time.time()
result = tife.decrypt(pp, ctx, cty)
decrypt_b = time.time()
ctsize = get_ct_size(cty)
L.append((encryptL_b - encryptL_a, encryptR_b - encryptR_a, decrypt_b -
decrypt_a, ctsize))
print("raw runtimes for each iteration: ", L)
return (setup_b - setup_a, list_tuple_mean(L))
def test_tife():
"""
Runs a test on two-input functional encryption for the comparison function on
toy parameters.
"""
N = 30
f = lambda x, y: 1 if x < y else 0
x = random.randint(0, N - 1)
y = random.randint(0, N - 1)
(pp, sk) = tife.setup(N, f)
ctx = tife.encryptL(sk, x)
cty = tife.encryptR(sk, y)
result = tife.decrypt(pp, ctx, cty)
assert result == f(x, y), "Failed test_tife"
def test_tife(): """ Runs a test on two-input functional encryption for the comparison function on toy parameters. """ N = 30 f = lambda x,y: 1 if x < y else 0 x = random.randint(0, N-1) y = random.randint(0, N-1) (pp, sk) = tife.setup(N, f) ctx = tife.encryptL(sk, x) cty = tife.encryptR(sk, y) result = tife.decrypt(pp, ctx, cty) assert result == f(x,y), "Failed test_tife"