Results 41 to 50 of about 1,096 (145)

Advance Sharing Procedures for the Ramp Quantum Secret Sharing Schemes With the Highest Coding Rate

open access: yesIEEE Transactions on Quantum Engineering
In some quantum secret sharing schemes, it is known that some shares can be distributed to participants before a secret is given to the dealer. However, it is unclear whether some shares can be distributed before a secret is given in the ramp quantum ...
Ryutaroh Matsumoto
doaj   +1 more source

Generalized quantum secret sharing

open access: yesPhysical Review A, 2005
To appear in Phys. Rev.
Singh, Sudhir Kumar, Srikanth, R.
openaire   +2 more sources

Efficient (k, n) threshold semi-quantum secret sharing protocol

open access: yesFrontiers in Physics
Most (k, n) threshold quantum secret sharing protocols are fully quantum. The message receivers must be equipped with complex quantum devices so as to prepare various quantum resources and perform complex quantum operations, which may affect the practice
Jie Cao, Jinchao Xu
doaj   +1 more source

Counterfactual Quantum Secret Sharing

open access: yesIEEE Transactions on Communications
The emerging quantum technology has highlighted the necessity for secure and efficient secret sharing in quantum networks. In this paper, we introduce a verifiable multiparty counterfactual quantum secret sharing (QSS) protocol, enhancing security and efficiency. This QSS protocol utilizes a low-depth quantum circuit to encrypt and decrypt information,
Nomi Lae   +6 more
openaire   +1 more source

How to Share a Quantum Secret

open access: yesPhysical Review Letters, 1999
We investigate the concept of quantum secret sharing. In a ((k,n)) threshold scheme, a secret quantum state is divided into n shares such that any k of those shares can be used to reconstruct the secret, but any set of k-1 or fewer shares contains absolutely no information about the secret. We show that the only constraint on the existence of threshold
Cleve, Richard   +2 more
openaire   +2 more sources

Matroids and quantum-secret-sharing schemes [PDF]

open access: yesPhysical Review A, 2010
A secret sharing scheme is a cryptographic protocol to distribute a secret state in an encoded form among a group of players such that only authorized subsets of the players can reconstruct the secret. Classically, efficient secret sharing schemes have been shown to be induced by matroids.
Pradeep Kiran Sarvepalli   +1 more
openaire   +2 more sources

Study of secret sharing schemes based on quantum theory

open access: yesTongxin xuebao, 2009
Quantum secret sharing(QSS) which is based on the laws of quantum mechanics,instead of mathematical assumptions can share the information unconditionally securely, according to the form of sharing information, quantum secret sharing can be divided into ...
ZHU Zhen-chao 1, ZHANG Yu-qing2
doaj   +2 more sources

Graph states for quantum secret sharing [PDF]

open access: yesPhysical Review A, 2008
We consider three broad classes of quantum secret sharing with and without eavesdropping and show how a graph state formalism unifies otherwise disparate quantum secret sharing models. In addition to the elegant unification provided by graph states, our approach provides a generalization of threshold classical secret sharing via insecure quantum ...
Markham, Damian, Sanders, Barry C.
openaire   +3 more sources

An Efficient Simulation of Quantum Secret Sharing

open access: yesCoRR, 2021
In quantum cryptography, quantum secret sharing $(QSS)$ is a fundamental primitive. $QSS$ can be used to create complex and secure multiparty quantum protocols. Existing $QSS$ protocols are either at the $(n, n)$ threshold $2$ level or at the $(t, n)$ threshold $d$ level with a trusted player, where $n$ denotes the number of players and $t$ denotes the
Kartick Sutradhar, Hari Om
openaire   +2 more sources

Continuous-Variable Quantum Secret Sharing in Fast-Fluctuating Channels

open access: yesIEEE Transactions on Quantum Engineering, 2023
Recently, several continuous-variable quantum secret sharing (CV-QSS) protocols were proposed, while most of them are limited to the fiber channel systems with a relatively stable transmissivity.
Fangli Yang, Daowen Qiu, Paulo Mateus
doaj   +1 more source

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