Abstract
This paper proposes a dynamic multiparty to multiparty quantum secret sharing scheme, where two distant groups of participants can share the common secrets. In our present scheme, a trusted third party is required to reliably prepare all quantum resources. Each agent only needs to perform the local unitary operations or single-particle measurement completing the process of secret sharing. Secret can be recovered only if all agents cooperate each other. Furthermore, a new agent can be added or deleted from the current scheme with the help of the trusted third party. Finally, security analysis shows that our scheme can resist various common attacks. Compared to former existing researches, our scheme can be more efficient in real application.
Highlights
In the past decades, with the efforts of researchers, quantum computation and communication have been applied in various fields of computer science, such as machine learning [1], [2] and network communication
According to the above analysis and considering the applicability of the protocol, we propose a dynamic multiparty to multiparty quantum secret sharing scheme (DMMQSS), which is based on generalized GHZ state and the property of unbiased measurement bases
Under the condition that the trusted third party prepares all quantum resources, all participants in our present scheme do not need to prepare any quantum entangled resources, which effectively reduces the number of qubit generators
Summary
With the efforts of researchers, quantum computation and communication have been applied in various fields of computer science, such as machine learning [1], [2] and network communication. In 2012, a novel QSS scheme with additional function of dynamically adding or deleting participants was proposed by Jia et al [24], and this new QSS scheme is termed as dynamic quantum secret sharing (DQSS). Liao et al [28] designed a dynamic quantum secret sharing scheme using GHZ states and Controlled-NOT (CNOT) operation in 2014, which can avoid afore-mentioned collusion attack and verify the honesty of the cancelled agents in the meantime. According to the above analysis and considering the applicability of the protocol, we propose a dynamic multiparty to multiparty quantum secret sharing scheme (DMMQSS), which is based on generalized GHZ state and the property of unbiased measurement bases.
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