Results 41 to 50 of about 1,964,027 (259)
A Practical Protocol for Quantum Oblivious Transfer from One-Way Functions [PDF]
QuantumWe present a new simulation-secure quantum oblivious transfer (QOT) protocol based on one-way functions in the plain model. With a focus on practical implementation, our protocol surpasses prior works in efficiency, promising feasible experimental ...
Eleni Diamanti +5 more
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Quantum bit commitment under Gaussian constraints
, 2011 Quantum bit commitment has long been known to be impossible. Nevertheless, just as in the classical case, imposing certain constraints on the power of the parties may enable the construction of asymptotically secure protocols.
Cerf, Nicolas J. +2 more
core +1 more source
Unconditionally secure quantum bit commitment: Revised [PDF]
, 2020 Bit commitment is a primitive task of many cryptographic tasks. It has been proved that the unconditionally secure quantum bit commitment is impossible from Mayers-Lo-Chau No-go theorem.
Xiaojun Wang, Ming-Xing Luo
core +1 more source
Reexamination of quantum bit commitment: The possible and the impossible [PDF]
Physical Review A, 2007 Bit commitment protocols whose security is based on the laws of quantum mechanics alone are generally held to be impossible. In this paper we give a strengthened and explicit proof of this result. We extend its scope to a much larger variety of protocols, which may have an arbitrary number of rounds, in which both classical and quantum information is ...
D'ARIANO, GIACOMO +3 more
openaire +2 more sources
Device-independent bit commitment based on the CHSH inequality
New Journal of Physics, 2016 Bit commitment and coin flipping occupy a unique place in the device-independent landscape, as the only device-independent protocols thus far suggested for these tasks are reliant on tripartite GHZ correlations.
N Aharon, S Massar, S Pironio, J Silman
doaj +1 more source
Quantum Bit Commitment and Coin Tossing Protocols [PDF]
, 2007 In the late 1960’s a physicist, Stephen Wiesner, had the idea that the uncertainty principle could be used for cryptography (though he published his result much later [Wie83]). One of his ideas was that it would be possible to use a stream of polarized photons to transmit two messages in a way that would make only one of them readable at the receiver’s
Gilles Brassard, Claude Crépeau
openaire +2 more sources
Quantum Bit Commitment with Application in Quantum Zero-Knowledge Proof [PDF]
, 2014 Watrous (STOC 2006) proved that plugging classical bit commitment scheme that is secure against quantum attack into the GMW-type construction of zero-knowledge gives a classical zero-knowledge proof that is secure against quantum attack.
Yujuan Quan +3 more
core +1 more source
Composable security in relativistic quantum cryptography
New Journal of Physics, 2019 Relativistic protocols have been proposed to overcome certain impossibility results in classical and quantum cryptography. In such a setting, one takes the location of honest players into account, and uses the signalling limit given by the speed of light
V Vilasini +2 more
doaj +1 more source
Lossy-and-Constrained Extended Non-Local Games with Applications to Quantum Cryptography [PDF]
QuantumExtended non-local games are a generalization of monogamy-of-entanglement games, played by two quantum parties and a quantum referee that performs a measurement on their local quantum system.
Llorenç Escolà-Farràs +1 more
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Breaking barriers in two-party quantum cryptography via stochastic semidefinite programming [PDF]
QuantumIn the last two decades, there has been much effort in finding secure protocols for two-party cryptographic tasks. It has since been discovered that even with quantum mechanics, many such protocols are limited in their security promises. In this work, we
Akshay Bansal, Jamie Sikora
doaj +1 more source