def send_single_bit_with_bb84(your_device: QuantumDevice,
eve_device: QuantumDevice) -> tuple:
[your_message,
your_basis] = [sample_random_bit(your_device) for _ in range(2)]
eve_basis = sample_random_bit(eve_device)
with your_device.using_qubit() as q:
prepare_message_qubit(your_message, your_basis, q)
# QUBIT SENDING...
eve_result = measure_message_qubit(eve_basis, q)
return ((your_message, your_basis), (eve_result, eve_basis))
def sample_random_bit(device: QuantumDevice) -> bool:
with device.using_qubit() as q:
q.h()
result = q.measure()
q.reset() # <1>
return result
def send_classical_bit_wrong_basis(device: QuantumDevice, bit: bool) -> None:
with device.using_qubit() as q:
prepare_classical_message(bit, q)
result = eve_measure_plusminus(q)
assert result == bit, "Two parties do not have the same bit value" # <3>
def send_classical_bit_plusminus(device: QuantumDevice, bit: bool) -> None:
with device.using_qubit() as q:
prepare_classical_message_plusminus(bit, q)
result = eve_measure_plusminus(q)
assert result == bit
def qrng(device: QuantumDevice) -> bool:
with device.using_qubit() as q:
q.h()
return q.measure()
def send_classical_bit(device: QuantumDevice, bit: bool) -> None:
with device.using_qubit() as q:
prepare_classical_message(bit, q)
result = eve_measure(q)
q.reset()
assert result == bit # <4>