中文摘要：

量安全直接通讯和认证协议被使用单个光子建议。信息传播被送光子一次量隧道完成，没有失去安全，它改进效率。协议编码单个光子定序的接收装置的身份绳，它充当察觉顺序和工具认证。在秘密消息是被编码以前，挑选光子顺序，它被使用 XOR 操作与发送者的身份绳加密，它高效地保卫量远距传物攻击。发送者和接收装置的基础身份绳被再使用甚至在吵闹的隧道无条件地安全。由王等与协议相比求婚了。（ Phys Lett A， 2006， 358：256258 ) ，学习在一传播送光子一次并且最保卫的在这的协议攻击高效地包括 man-in-the-middle 攻击和量远距传物攻击。

英文摘要：

A quantum secure direct communication and authentication protocol is proposed by using single photons. An information transmission is completed by sending photons once in quantum channel, which improves the efficiency without losing the security. The protocol encodes identity-string of the receiver as single photons sequence, which acts as detection sequence and implements authentication. Before secret message is encoded as single photons sequence, it is encrypted with identity-string of the sender by using XOR operation, which defends quantum teleportation attack efficiently. The base identity-strings of the sender and the re- ceiver are reused unconditionally secure even in noisy channel. Compared with the protocol proposed by Wang et al. （Phys Lett A, 2006, 358： 256--258）, the protocol in this study sends photons once in one transmission and defends most attacks including ＇man-in-the-middle＇ attack and quantum teleportation attack efficiently.