We present a scheme for asymmetric quantum-information splitting, where a sender
distributes asymmetrically a quantum secret (quantum state) to distant partners in a network …

We introduce and analyze approximate quantum secret sharing in a formal cryptographic
setting, wherein a dealer encodes and distributes a quantum secret to players such that …

A quantum threshold secret sharing (QTS) scheme is a quantum cryptographic protocol for
sharing a quantum secret among parties such that the secret can be recovered by any or …

We consider the task of sharing a secret quantum state in a quantum network in a verifiable
way. We propose a protocol that achieves this task, while reducing the number of required …

We propose a new protocol of hierarchical quantum information splitting (HQIS) via two four-
qubit cluster state. In the protocol, a boss can asymmetrically distribute an arbitrary two-qubit …

We demonstrate a new construction for perfect quantum secret sharing (QSS) schemes
based on imperfect “ramp” secret sharing combined with classical encryption, in which the …

It is shown that a sequence {Φ n} of quantum channels strongly converges to a quantum
channel Φ 0 if and only if there exist a common environment for all the channels and a …

It is known that a necessary and sufficient condition for equality in the data processing
inequality (DPI) for the quantum relative entropy is the existence of a recovery map. We …

A quantum secret sharing scheme is a cryptographic protocol by which a dealer can share a
secret among a group of n players so that only certain subsets of players can recover the …

This paper unifiedly addresses two kinds of key quantum secure tasks, ie, quantum versions
of secret sharing (SS) and symmetric private information retrieval (SPIR) by using multi …