Unconditionally Secure Quantum Bit Commitment is Simply Possible
نویسنده
چکیده
Mayers, Lo and Chau proved unconditionally secure quantum bit commitment is impossible. It is shown that their proof is valid only for a particular model of quantum bit commitment encoding, in general it does not hold good. A different model of unconditionally secure quantum bit commitment both entanglement and disentanglement-based is presented. Even cheating can be legally proved with some legal evidences. Unconditionally secure quantum bit commitment can be established on the top of unconditionally secure quantum coin tossing, which is also claimed to be two-way impossible.
منابع مشابه
Unconditionally Secure Quantum Bit Commitment Is Possible
Bit commitment involves the submission of evidence from one party to another so that the evidence can be used to confirm a later revealed bit value by the first party, while the second party cannot determine the bit value from the evidence alone. An unconditionally secure bit commitment protocol utilizing quantum states is presented. The generality of previous proofs on the impossibility of qua...
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Lo and Chau, and independently Mayers, have shown that all quantum bit commitment schemes proposed to date are insecure: one or both participants can cheat if they have a quantum computer. They claim also to have demonstrated that unconditionally secure quantum bit commitment is impossible. However, their no-go arguments rely on models of quantum cryptographic protocols which are insufficiently...
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Bit commitment involves the submission of evidence from one party to another so that the evidence can be used to confirm a later revealed bit value by the first party, while the second party cannot determine the bit value from the evidence alone. It is widely believed that unconditionally secure quantum bit commitment is impossible due to quantum entanglement cheating, which is codified in a ge...
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An unconditionally secure quantum bit commitment is proposed in this paper. we show that this scheme is statistically binding and perfectly concealing. The security of the protocol is based on the existence of quantum one-way functions by fundamental principles of quantum physics. As a conclusion of this paper, statistically binding and perfectly concealing quantum bit commitment schemes can be...
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تاریخ انتشار 2008