中文摘要：

提出一种新的随机相位编码的确定性量子密钥分配（QKD）方案.在该方案中,通信双方不需要公布测量基,就可以共享秘密信息,提高了密钥生成效率.因为传输的量子比特是随机编码的,即便光源非严格为单光子,该方案仍旧是安全的.理论分析显示出,对于光子数分裂攻击,中间人攻击和特洛伊木马等攻击手段,本方案比之前的QKD方案具有更强的安全性.

英文摘要：

We propose a new quantum key distribution scheme based on random phase coding. In this scheme, the sender and the receiver can share the secret information without basis reconciliation, and besides, this scheme is more efficient. As the phase of the qubit is coded randomly, this protocol is robust even when the source is not a prefect single photon. We show theoretically that it has higher security against the attacks, such as the photon-number-splitting, the impersonation attack, and the Trojan attack, etc., than the previous QKD scheme.