Entanglement versus Disentanglement: Quantum Cryptography

In alternative disentanglement based quantum cryptosystem, classical channel cannot be used when the system is protected by no-cloning principle. But for the similar security criterion , it is discussed that classical channel can be used in alternative entanglement based quantum cryptosystem. A prototype of conventional entanglement based cryptosystem is recovered from alternative entanglement based cryptosystem, but such recovery is not possible from alternative disentanglement based cryptosystem. We conclude that entanglement based cryptosystem is superior to disentanglement based system.