Quantum Secret Sharing On Information Security In Quantum Communication Network

In the field of quantum information, quantum entanglement has been playing a more and more crucial role because of its non-locality properties. Quantum key distribution (QKD), an important application of quantum mechanics supplies a secure way for creating a private key between two remote parties, the sender, Alice and the receiver, Bob. The non-cloning theorem forbids an eavesdropper. In 1984, Bennett and Brassard proposed the first quantum key distribution protocol, called the BB84 protocol. In 1991, Ekert presented a quantum key distribution protocol using the entanglement of an Einstein-Podolsky-Rosen (EPR) pair. In Ekert's scheme, Alice and Bob each have one particle of a spin single state and choose one at random among three coplanar axes, which are perpendicular to the trajectory of the particles, for their random spin measurements. In 1992, Bennett, Brassard, and Mermin proposed that a simpler EPR scheme without invoking Bell's theorem can be used in quantum key distribution, where two users each choose one axis randomly between two perpendicular axes and measure their particles.Recently, a novel branch of quantum communication, Quantum Secure Direct Communication (QSDC) was proposed and actively pursued by some groups.The Quantum Secret Sharing Communication (QSSC) is likely to play a key role in protecting secret quantum information, sharing difficult-to-construct ancilla states and joint sharing of quantum quantum, and so on. Hence, a multiparty Quantum Secret Sharing Communication (MQSC) scheme has been proposed by some groups. More, a quantum secret sharing between multiparty and multiparty without entanglement has been proposed by Yan and Gao.My study involves four areas in quantum communication, i.e., quantum key distribution (QKD), quantum secure direct communication (QSDC),...