An Entanglement-Based Protocol For Strong Coin Tossing With Bias 1/4

Abstract

In the literature, strong coin tossing protocols based on bit commitment have been proposed. Here we examine a protocol that instead tries to achieve the task by sharing entanglement securely. The protocol uses only qubits, and has bias 1/4. This is equal to the best known bias for bit commitment based schemes.

4 pages, no figures. Title changed, and paragraph "Additional Notes" added

References in corpus (4)

• Degrees of concealment and bindingness in quantum bit commitment protocols
• Coin Tossing is Strictly Weaker Than Bit Commitment
• Multiparty Quantum Coin Flipping
• A large family of quantum weak coin-flipping protocols

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• Measurement-Device-Independent Quantum Coin Tossing
• Dilemma that cannot be resolved by biased quantum coin flipping
• Unconditionally secure relativistic multi-party biased coin flipping and die rolling
• Breaking barriers in two-party quantum cryptography via stochastic semidefinite programming
• Semi-loss-tolerant strong quantum coin-flipping protocol using quantum non-demolition measurement