Results 21 to 30 of about 1,964,027 (259)

Impossibility of Growing Quantum Bit Commitments [PDF]

open access: yesPhysical Review Letters, 2011
10 pages, minor ...
Severin Winkler   +3 more
openaire   +4 more sources

An Optical Implementation of Quantum Bit Commitment Using Infinite-Dimensional Systems

open access: yesApplied Sciences, 2023
Unconditionally secure quantum bit commitment (QBC) was widely believed to be impossible for more than two decades, but recently, based on an anomalous behavior found in quantum steering, we proposed a QBC protocol which can be unconditionally secure in ...
Guang Ping He
doaj   +1 more source

Cheat Sensitive Quantum Bit Commitment [PDF]

open access: yesPhysical Review Letters, 2004
Final version: a slightly shortened version of this will appear in PRL.
Hardy, Lucien, Kent, Adrian
openaire   +3 more sources

Measurement-Device-Independent Two-Party Cryptography with Error Estimation

open access: yesSensors, 2020
We present an innovative method for quantum two-party cryptography. Our protocol introduces joint measurement and error estimation to improve the security of two-party cryptographic protocols. Our protocol removes the assumption of the attacker’s limited
Zishuai Zhou   +4 more
doaj   +1 more source

Quantum Bit String Commitment [PDF]

open access: yesPhysical Review Letters, 2003
Published version. (Refs updated.)
openaire   +3 more sources

Bit-commitment-based quantum coin flipping [PDF]

open access: yesPhysical Review A, 2003
In this paper, we focus on a special framework for quantum coin flipping protocols,_bit-commitment based protocols_, within which almost all known protocols fit. We show a lower bound of 1/16 for the bias in any such protocol. We also analyse a sequence of multi-round protocol that tries to overcome the drawbacks of the previously proposed protocols ...
Nayak, Ashwin, Shor, Peter
openaire   +3 more sources

Lottery and Auction on Quantum Blockchain

open access: yesEntropy, 2020
This paper proposes a protocol for lottery and a protocol for auction on quantum Blockchain. Our protocol of lottery satisfies randomness, unpredictability, unforgeability, verifiability, decentralization and unconditional security.
Xin Sun, Piotr Kulicki, Mirek Sopek
doaj   +1 more source

Unconditionally secure quantum coin flipping

open access: yesResults in Physics, 2023
Quantum coin flipping (QCF) is an essential primitive for quantum cryptography. Unconditionally secure strong QCF with an arbitrarily small bias was widely believed to be impossible.
Guang Ping He
doaj   +1 more source

A First Step to the Categorical Logic of Quantum Programs

open access: yesEntropy, 2020
The long-term goal of our research is to develop a powerful quantum logic which is useful in the formal verification of quantum programs and protocols.
Xin Sun, Feifei He
doaj   +1 more source

Fidelity of quantum strategies with applications to cryptography [PDF]

open access: yesQuantum, 2018
We introduce a definition of the fidelity function for multi-round quantum strategies, which we call the $\textit{strategy fidelity}$, that is a generalization of the fidelity function for quantum states.
Gus Gutoski   +2 more
doaj   +1 more source

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