Threshold quantum secret sharing between multi-party and multi-party

• 来源期刊: 中国科学G辑（英文版）
• 年，卷（期）: 2008,（9）
• 页码范围: 1308-1315
• 页数: 8页
• 语种: 英文
• DOI: 10.1007/s11433-008-0114-6

摘要

A threshold quantum secret sharing (TQSS) scheme between multi-party and multi-party was proposed using a sequence of single photons, which is useful and efficient when the parties of communication are not all present. We described the process of this TQSS scheme and discussed its security. It was shown that entan-glement is not necessary for quantum secret sharing. Moreover, the theoretic effi-ciency was improved to approach 100% as almost all the instances can be used for generating the private key, and each photon can carry one bit of information. This protocol is feasible with the present-day technique.