Nonequivalence of two flavors of oblivious transfer at the quantum level

He, Guang Ping; Wang, Z. D.

doi:10.1103/physreva.73.044304

Cited by 18 publications

(34 citation statements)

References 8 publications

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“…The security proof is given and the non-equivalence(?) of quantum secret all-or-non oblivious transfer protocol and quantum two-take-one oblivious transfer protocol is proved [He and Wang (2006)]. In 2007, Colbeck et al further studied the five conditions security of the two-party classic calculation, which showed that there was no unconditional secure classical calculation and illustrated the transmission results through quantum oblivious transfer [Colbeck (2007)].…”

Section: Quantum Oblivious Transfer (Qot)mentioning

confidence: 99%

Quantum Communication Networks and Trust Management: A Survey

Zhang¹,

Yan²,

Yan³

et al. 2019

Computers, Materials &Amp; Continua

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This paper summarizes the state of art in quantum communication networks and trust management in recent years. As in the classical networks, trust management is the premise and foundation of quantum secure communication and cannot simply be attributed to security issues, therefore the basic and importance of trust management in quantum communication networks should be taken more seriously. Compared with other theories and techniques in quantum communication, the trust of quantum communication and trust management model in quantum communication network environment is still in its initial stage. In this paper, the core technologies of establishing secure and reliable quantum communication networks are categorized and summarized, and the trends of each direction in trust management of quantum communication network are discussed in depth.

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Section: Quantum Oblivious Transfer (Qot)mentioning

confidence: 99%

Quantum Communication Networks and Trust Management: A Survey

Zhang¹,

Yan²,

Yan³

et al. 2019

Computers, Materials &Amp; Continua

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“…For the security of OT 2 1 protocol, He [61] has proved that the OT 2 1 protocol implemented upon all-or-nothing OT is not covered by the cheating strategy in Ref. [17].…”

Section: The Security Of Qotmentioning

confidence: 99%

Practical Quantum Bit Commitment Protocol Based on Quantum Oblivious Transfer

Song

Yang

2018

Applied Sciences

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Oblivious transfer (OT) and bit commitment (BC) are two-party cryptographic protocols which play crucial roles in the construction of various cryptographic protocols. We propose three practical quantum cryptographic protocols in this paper. We first construct a practical quantum random oblivious transfer (R-OT) protocol based on the fact that non-orthogonal states cannot be reliably distinguished. Then, we construct a fault-tolerant one-out-of-two oblivious transfer ( O T 1 2 ) protocol based on the quantum R-OT protocol. Afterwards, we propose a quantum bit commitment (QBC) protocol which executes the fault-tolerant O T 1 2 several times. Mayers, Lo and Chau (MLC) no-go theorem proves that QBC protocol cannot be unconditionally secure. However, we find that computing the unitary transformation of no-go theorem attack needs so many resources that it is not realistically implementable. We give a definition of physical security for QBC protocols and prove that the practical QBC we proposed is physically secure and can be implemented in the real world.

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“…Thus, having secure quantum oblivious transfer protocol does not necessarily mean that it is possible to construct secure 1out-of-2 oblivious transfer. Indeed, He and Wang recently showed that in quantum domain the various types of oblivious transfer are no longer equivalent [HW06b] and constructed a secure quantum single-bit oblivious transfer [HW06a] using entanglement. Consequently, classical reductions of single-bit to a bit-string protocols are also compromised in the quantum setting and need to be re-examined.…”

Section: Further Developing Wiesner Ideas Bennett and Brassard Presementioning

confidence: 99%

“…In Figure 2 we present quantum reductions between cryptographic primitives. Note that, despite the mentioned controversial (and not widely accepted within the community) results by He and Wang [HW06b,HW06a], the recent construction of a single-bit 1-out-of-2 oblivious transfer out of an ordinary (i.e., all-or-nothing) OT [MP16] leaves the question of the equivalence between the two flavours of the protocol open. In this paper, we present a quantum oblivious transfer protocol for bit-strings, based on the recently proposed public key cryptosystem [Nik08].…”

Section: Further Developing Wiesner Ideas Bennett and Brassard Presementioning

confidence: 99%

Oblivious transfer based on single-qubit rotations

Rodrigues

Mateus

Paunković

et al. 2017

J. Phys. A: Math. Theor.

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We present a bit-string quantum oblivious transfer protocol based on single-qubit rotations. Our protocol is built upon a previously proposed quantum public-key protocol and its practical security relies on the laws of Quantum Mechanics. Practical security is reflected in the fact that, due to technological limitations, the receiver (Bob) of the transferred bit-string is restricted to performing only "few-qubit" coherent measurements.We also present a single-bit oblivious transfer based on the proposed bit-string protocol.The protocol can be implemented with current technology based on optics. *

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Nonequivalence of two flavors of oblivious transfer at the quantum level

Cited by 18 publications

References 8 publications

Quantum Communication Networks and Trust Management: A Survey

Quantum Communication Networks and Trust Management: A Survey

Practical Quantum Bit Commitment Protocol Based on Quantum Oblivious Transfer

Oblivious transfer based on single-qubit rotations

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