中文摘要：

基于Bell纠缠态提出了一个新的量子密钥注入方案并详细分析了其安全性。该方案可以作为一种完善的纠缠信道共享方式，也可以采取随机选择测量基直接测量或者随机选择纠缠态以纠缠交换方式注入量子或者经典密钥。与经典密钥注入不同，新的量子密钥注入方案能得到无条件安全的密钥，因为即使是密钥注入者也不能获取有关密钥的信息，这在密钥管理领域有非常重要的意义。

英文摘要：

A novel quantum key inj ection（QKI）scheme is proposed by utilizing Bell states,and the security of the proposed QKI scheme is analyzed in detail.The QKI scheme can serve as a perfect entangled channel sharing mode,a quantum key aor classical key inj ection mode by direct measurement with randomly select-ed measurement bases or by entanglement swapping with randomly chosen entanglements.Unlike classical key inj ection,in the proposed QKI scheme the unconditionally secure key can be inj ected,since even if the inj ector can not obtain any useful information about the key.Quantum key inj ection scheme is of significant importance in the field of key management.