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A multiparty quantum determined key distribution protocol using GHZ(Greenberger-Horne-Zeilinger) states is presented in this paper. Three parties can build a key with the help of GHZ states. The key can be a determined string in our protocol while the key is a random string built in the process of key distribution in previous protocols. We prove that our protocol is guaranteed to be unconditionally...
In this paper a multiparty information delay protocol using open-destination teleportation is present. By sharing entangled four-particle quantum systems one person can give the other three persons some information which cannot be read until he or she lets them do. The principles of quantum mechanics guarantees the unconditional security of the protocol. When the one decides to let the other three...
A information delay protocol using quantum teleportation is presented in this paper. By sharing EPR (Einstein-Podolsky-Rosen) pairs one person can give the other one some information which cannot be read until he or she lets the latter do it. The principles of quantum mechanics guarantee that the protocol is unconditionally secure. When the one decides to let the other to get the information, he need...
In this paper we provide a quantum determined key distribution scheme. Unlike the previous schemes which produce a random string in the key distribution process as the key, in our scheme the two parties can share a predetermined binary string as the key with shared entangled states and performing CNOT operation and the Bell state measurement. The principles of quantum mechanics guarantees that no...
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