def test_cascade_run():
KEYSIZE = 512
KEYNUM = 10
tl = Timeline(1e11)
alice = QKDNode("alice", tl)
bob = QKDNode("bob", tl)
pair_bb84_protocols(alice.protocol_stack[0], bob.protocol_stack[0])
pair_cascade_protocols(alice.protocol_stack[1], bob.protocol_stack[1])
qc0 = QuantumChannel("qc0",
tl,
distance=1e3,
attenuation=2e-5,
polarization_fidelity=0.97)
qc1 = QuantumChannel("qc1",
tl,
distance=1e3,
attenuation=2e-5,
polarization_fidelity=0.97)
qc0.set_ends(alice, bob)
qc1.set_ends(bob, alice)
cc0 = ClassicalChannel("cc0", tl, distance=1e3)
cc1 = ClassicalChannel("cc1", tl, distance=1e3)
cc0.set_ends(alice, bob)
cc1.set_ends(bob, alice)
# Parent
pa = Parent(alice, KEYSIZE, KEYNUM)
pb = Parent(bob, KEYSIZE, KEYNUM)
alice.protocol_stack[1].upper_protocols.append(pa)
pa.lower_protocols.append(alice.protocol_stack[1])
bob.protocol_stack[1].upper_protocols.append(pb)
pb.lower_protocols.append(bob.protocol_stack[1])
process = Process(pa, "push", [])
event = Event(0, process)
tl.schedule(event)
tl.init()
tl.run()
assert pa.counter == pb.counter == KEYNUM
for k1, k2 in zip(pa.keys, pb.keys):
assert k1 == k2
assert k1 < 2**KEYSIZE # check that key is not too large
assert alice.protocol_stack[1].error_bit_rate == 0
def test_BB84_time_bin():
tl = Timeline(1e12) # stop time is 1 s
alice = QKDNode("alice", tl, encoding=time_bin, stack_size=1)
bob = QKDNode("bob", tl, encoding=time_bin, stack_size=1)
pair_bb84_protocols(alice.protocol_stack[0], bob.protocol_stack[0])
qc0 = QuantumChannel("qc0",
tl,
distance=10e3,
polarization_fidelity=0.99,
attenuation=0.00002)
qc1 = QuantumChannel("qc1",
tl,
distance=10e3,
polarization_fidelity=0.99,
attenuation=0.00002)
qc0.set_ends(alice, bob)
qc1.set_ends(bob, alice)
cc0 = ClassicalChannel("cc0", tl, distance=10e3)
cc1 = ClassicalChannel("cc1", tl, distance=10e3)
cc0.set_ends(alice, bob)
cc1.set_ends(bob, alice)
# Parent
pa = Parent(alice, 128, "alice")
pb = Parent(bob, 128, "bob")
alice.protocol_stack[0].upper_protocols.append(pa)
pa.lower_protocols.append(alice.protocol_stack[0])
bob.protocol_stack[0].upper_protocols.append(pb)
pb.lower_protocols.append(bob.protocol_stack[0])
process = Process(pa, "push", [])
event = Event(0, process)
tl.schedule(event)
tl.init()
tl.run()
assert pa.counter == pb.counter == 10
"dark_count": 10,
"time_resolution": 10,
"count_rate": 50e6
}]
bob = QKDNode("bob", tl)
for i in range(len(detector_params)):
for name, param in detector_params[i].items():
bob.update_detector_params(i, name, param)
qc0.set_ends(alice, bob)
qc1.set_ends(bob, alice)
cc0.set_ends(alice, bob)
cc1.set_ends(bob, alice)
# BB84 config
pair_bb84_protocols(alice.protocol_stack[0], bob.protocol_stack[0])
# cascade config
pair_cascade_protocols(alice.protocol_stack[1], bob.protocol_stack[1])
process = Process(alice.protocol_stack[1], 'push',
[256, math.inf, 12e12])
tl.schedule(Event(0, process))
tl.init()
tl.run()
print("completed distance {}".format(distance))
# log results
bba = alice.protocol_stack[0]
cascade_a = alice.protocol_stack[1]