One-out-of-two Quantum Oblivious Transfer based on Nonorthogonal States

Abstract

This study proposes a simple and efficient one-out-of-two quantum oblivious transfer (QOT) protocol based on nonorthogonal states. The nonorthogonal property grants quantum bit immunity to some operations in order to achieve the irreversible goal of discarding a message, resulting in a one-out-of-two selection effect. In addition, it can also prevent entangled cheating from an illegal agent. The resulting QOT protocol is therefore built directly on quantum resources, rather than on a two-level structure which must first create two classical keys using the quantum resources (all-or-nothing QOT), and then build the one-out-of-two protocol from there. Furthermore, the proposed protocol allows Alice to test Bob's loyalty by comparing the measurement results. Moreover, the relationship with the no-go theorem is discussed in detail; this relationship is often overlooked in other studies. The no-go theorem discussion and security analysis demonstrate that the proposed protocol does not belong to the no-go theorem constraint, and is secure against both external and internal attacks. In addition, the efficacy analysis shows that the proposed protocol is more efficient than other two-level structure protocols.

References in corpus (22)

• Simple Proof of Security of the BB84 Quantum Key Distribution Protocol
• Unconditional Security Of Quantum Key Distribution Over Arbitrarily Long Distances
• Unconditionally secure quantum bit commitment is impossible
• Is Quantum Bit Commitment Really Possible?
• Insecurity of Quantum Secure Computations
• Unconditionally Secure Bit Commitment
• Secure quantum key distribution with an uncharacterized source
• Unconditionally Secure Bit Commitment by Transmitting Measurement Outcomes
• Applications of single-qubit rotations in quantum public-key cryptography
• Complete Insecurity of Quantum Protocols for Classical Two-Party Computation
• The Impossibility Of Secure Two-Party Classical Computation
• Unconditional Security of the Bennett 1992 quantum key-distribution over lossy and noisy channel
• Implications of Superstrong Nonlocality for Cryptography
• Quantum Bit String Commitment
• Oblivious transfer using quantum entanglement
• Computational Indistinguishability between Quantum States and Its Cryptographic Application
• Robust Unconditionally Secure Quantum Key Distribution with Two Nonorthogonal and Uninformative States
• The relationship between two flavors of oblivious transfer at the quantum level
• Causality and Nonlocality as Axioms for Quantum Mechanics
• 1-out-of-2 Oblivious transfer using flawed Bit-string quantum protocol
• Oblivious transfer and quantum non-locality
• Quantum oblivious transfer and bit commitment protocols based on two non-orthogonal states coding