On the Security of Quantum Key Distribution Ping-Pong Protocol
On the Security of Quantum Key Distribution Ping-Pong Protocol
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DOI：
10.4236/jqis.2013.31004
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发表时间：
2013-03
期刊：
影响因子：
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通讯作者：
Masakazu Yoshida;T. Miyadera;H. Imai
中科院分区：
文献类型：
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作者：
Masakazu Yoshida;T. Miyadera;H. Imai
如果计算算法、计算机等取得了显着的进步，基于计算的密码学可能无法保证长期的安全性。因此，具有无条件安全性的量子密码学受到关注。在本文中，我们考虑双向量子密钥分发协议（所谓的乒乓协议）的安全性。因此，我们不仅引入了鲁棒性，还引入了与攻击模型的相关工作不同的信息扰动定理，该定理表示窃听者的信息增益和错误率之间的权衡关系。
Computational based cryptography might not guarantee long term security if computational algorithms, computers, and so on are made remarkable progress. Therefore, quantum cryptography with unconditionally security attracts attention. In this paper, we consider security of a two-way quantum key distribution protocol, so called Ping-Pong protocol. As a result, we introduce not only robustness but also a different information disturbance theorem, which denotes a trade-off relationship between information gain for an eavesdropper and error rate, from the related works for an attack model.