Abstract
The weighted threshold structure of secret sharing has important application values in the hierarchical organization. In order to satisfy the actual needs of participants with different authority, only using single-particle transform of Bell state, we construct a new (w, t, n)-weighted threshold quantum secret sharing scheme in the two-qubit system based on the Chinese Remainder Theorem. The paper can share not only classical information but also quantum state information. Compared with the existing threshold schemes, the proposed scheme can greatly improve information transmission capacity by employing two-qubit entangled Bell state. Furthermore, the security analysis shows that our scheme cannot only detect a series of typical external attacks but resist forgery and collusion attacks.
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