Results 31 to 40 of about 1,964,027 (259)
Quantum Bit Commitment and the Reality of the Quantum State [PDF]
Foundations of Physics, 2018 10 pages, 2 figures; close to the published ...
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Nonclassicality without entanglement enables bit commitment [PDF]
, 2008 We investigate the existence of secure bit commitment protocols in the convex framework for probabilistic theories. The framework makes only minimal assumptions, and can be used to formalize quantum theory, classical probability theory, and a host of ...
Leifer, M. +12 more
core +1 more source
Simple, Near-Optimal Quantum Protocols for Die-Rolling
Cryptography, 2017 Die-rolling is the cryptographic task where two mistrustful, remote parties wish to generate a random D-sided die-roll over a communication channel. Optimal quantum protocols for this task have been given by Aharon and Silman (New Journal of Physics ...
Jamie Sikora
doaj +1 more source
Multiphoton and Side-Channel Attacks in Mistrustful Quantum Cryptography
PRX Quantum, 2021 Mistrustful cryptography includes important tasks like bit commitment, oblivious transfer, coin flipping, secure computations, position authentication, digital signatures and secure unforgeable tokens.
Mathieu Bozzio +4 more
doaj +1 more source
Possibility, impossibility, and cheat sensitivity of quantum-bit string commitment [PDF]
, 2008 Unconditionally secure nonrelativistic bit commitment is known to be impossible in both the classical and the quantum worlds. But when committing to a string of n bits at once, how far can we stretch the quantum limits?
Wehner, S. +14 more
core +2 more sources
Unconditionally Secure Quantum Bit Commitment and Quantum Oblivious Transfer [PDF]
, 2023 Recently, a novel secure quantum bit commitment (QBC) protocol has been proposed [29]. However, the protocol requires Alice and Bob to share Bell states in advance, making the protocol lacking in practicality.
Yiting Su, Ping Wang, Yikang Lei
core +1 more source
Quantum Bit Commitment with a Composite Evidence [PDF]
Physica Scripta, 2004 6 pages, minor changes, journal reference ...
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Multi-bit quantum random number generation from a single qubit quantum walk
Scientific Reports, 2019 We present a scheme for multi-bit quantum random number generation using a single qubit discrete-time quantum walk in one-dimensional space. Irrespective of the initial state of the qubit, quantum interference and entanglement of particle with the ...
Anupam Sarkar, C. M. Chandrashekar
doaj +1 more source
Bit Commitment for Lottery and Auction on Quantum Blockchain
CoRR, 2020 This paper propose 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. Our protocol of auction satisfies bid privacy, posterior privacy, bids' binding, decentralization and unconditional ...
Xin Sun 0001, Piotr Kulicki, Mirek Sopek
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Erasable Bit Commitment From Temporary Quantum Trust [PDF]
IEEE Journal on Selected Areas in Information Theory, 2020 We introduce a new setting for two-party cryptography with temporarily trusted third parties. In addition to Alice and Bob in this setting, there are additional third parties, which Alice and Bob both trust to be honest during the protocol. However, once the protocol concludes, there is no guarantee over the behaviour of these third parties.
Norbert Lütkenhaus +2 more
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