Results 11 to 20 of about 1,964,027 (259)
Quantum one-time tables for unconditionally secure qubit-commitment [PDF]
Quantum, 2021 The commodity-based cryptography is an alternative approach to realize conventionally impossible cryptographic primitives such as unconditionally secure bit-commitment by consuming pre-established correlation between distrustful participants.
Seok Hyung Lie +3 more
doaj +3 more sources
Device-independent relativistic quantum bit commitment [PDF]
Physical Review A, 2015 We examine the possibility of device-independent relativistic quantum bit commitment. We note the potential threat of {\it location attacks}, in which the behaviour of untrusted devices used in relativistic quantum cryptography depends on their space-time location. We describe relativistic quantum bit commitment schemes that are immune to these attacks,
Adlam, Emily, Kent, Adrian
openaire +6 more sources
Is Quantum Bit Commitment Really Possible? [PDF]
Physical Review Letters, 1997 We show that all proposed quantum bit commitment schemes are insecure because the sender, Alice, can almost always cheat successfully by using an Einstein-Podolsky-Rosen type of attack and delaying her measurement until she opens her commitment.
Lo, HK, Chau, HF
openaire +6 more sources
The Quantum Bit Commitment Theorem [PDF]
Foundations of Physics, 2001 LaTeX, 25 pages.
Bub, Jeffrey
openaire +3 more sources
Quantum Bit Commitment Combining with BB84 Protocol
Electrical and Control Engineering & Materials Science and Manufacturing, 2016 We proposed a new quantum bit commitment scheme in which secret key need not to be provided by other quantum key distribution system. We can get the bit commitment with probability p by adding a waiting time in a frame during operating the BB84 protocol.
Changhua Zhu, Changxing Pei
exaly +3 more sources
Unconditionally Secure Relativistic Quantum Qubit Commitment
Applied Sciences, 2021 Quantum qubit commitment is a stronger version of the quantum bit commitment. It is impossible to realize unconditionally secure quantum qubit commitment in nonrelativistic domain.
Houquan Liu, Libo Yuan
doaj +1 more source
Insecurity of a relativistic quantum commitment scheme
Results in Physics, 2023 We propose a cheating strategy to a relativistic quantum commitment scheme (Nadeem, 2014) which was claimed to be unconditionally secure. It is shown that the sender Alice can cheat successfully with probability 100%, thus disproving the security claim.
Guang Ping He
doaj +1 more source
A Secured Quantum Two-Bit Commitment Protocol for Communication Systems
IEEE Access, 2022 Bit commitment is an essential primitive in quantum cryptography. It is the basic building block of many cryptographic protocols in which it provides security over distrustful parties. This paper proposes a secured quantum two-bit commitment protocol for
Manal Khawasik +3 more
doaj +1 more source
Complete extension: the non-signaling analog of quantum purification [PDF]
Quantum, 2023 Deriving quantum mechanics from information-theoretic postulates is a recent research direction taken, in part, with the view of finding a beyond-quantum theory; once the postulates are clear, we can consider modifications to them. A key postulate is the
Marek Winczewski +7 more
doaj +1 more source
Deterministic relativistic quantum bit commitment [PDF]
International Journal of Quantum Information, 2015 We describe new unconditionally secure bit commitment schemes whose security is based on Minkowski causality and the monogamy of quantum entanglement. We first describe an ideal scheme that is purely deterministic, in the sense that neither party needs to generate any secret randomness at any stage. We also describe a variant that allows the committer
Emily Adlam, Adrian Kent
openaire +2 more sources