Unconditionally Secure Quantum Bit Commitment and Quantum Oblivious Transfer

ePrint Report: Unconditionally Secure Quantum Bit Commitment and Quantum Oblivious Transfer

Ping Wang, Yikang Lei, Yiting Su

Recently, a novel secure quantum bit commitment (QBC) protocol has been proposed [29]. However, the protocol requires Alice and Bob to share Bell states in advance, making the protocol lacking in practicality. In this paper, we propose two new unconditionally secure quantum bit commitment protocols that do not require pre-shared Bell states based on entangled and non-entangled states, respectively. Their security stems from …

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