An entanglement-based protocol for strong coin tossing with bias 1/4

摘要

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. (c) 2006 Elsevier B.V. All rights reserved.