Related papers: Permanently Secure Quantum Bit Commitment from a T…
This paper has been withdrawn by the author(s), due a crucial error on the entanglement of $\Gamma$ registers.
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This paper has been withdrawn by the authors, due a oversimplified decoherence model. It will be substituted by a new work.
This paper is withdrawn because the results in the paper are included in a paper to be published in Mathematical and Computer Modelling.
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It has been recently shown by Mayers that no bit commitment scheme is secure if the participants have unlimited computational power and technology. However it was noticed that a secure protocol could be obtained by forcing the cheater to…
In this paper, we introduce a new quantum bit commitment protocol which is practically secure against entanglement attacks. A general cheating strategy is discussed and shown to be practically ineffective against the proposed approach.
It is generally believed that unconditionally secure quantum bit commitment (QBC) is proven impossible by a "no-go theorem". We point out that the theorem only establishes the existence of a cheating unitary transformation in any QBC scheme…
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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. Here, we…
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This paper was withdrawn by the author due to a fatal error.
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