CAJ | 학술논문

以离散变量量子态为信息载体，利用量子纠缠原理及量子相干特性，提出了一种基于GHZ态与Bell态纠缠的三方量子确定性密钥分发方案。方案可用于向两个接收方传输待分发的确定性密钥，当制备多粒子纠缠态时，方案还能扩展成多方量子确定性密钥分发方案，极大地提高了密钥的整体分发效率。安全分析表明，方案能经受窃听者采取的截获重发攻击和纠缠攻击两种攻击方式，确保通信安全可靠。同时，该方案在执行过程中不涉及任何幺正操作，简单便捷。
이리산변량양자태위신식재체，이용양자규전원리급양자상간특성，제출료일충기우GHZ태여Bell태규전적삼방양자학정성밀약분발방안。방안가용우향량개접수방전수대분발적학정성밀약，당제비다입자규전태시，방안환능확전성다방양자학정성밀약분발방안，겁대지제고료밀약적정체분발효솔。안전분석표명，방안능경수절은자채취적절획중발공격화규전공격량충공격방식，학보통신안전가고。동시，해방안재집행과정중불섭급임하요정조작，간단편첩。
By exploiting the entanglement and correlations properties of discrete variable quantum state,a tripartite quantum deterministic key distribution based on GHZ states and Bell states is proposed. The proposed scheme can hand over the pre -deterministic key to two receivers simultaneously,and it can also be extended to multiparty quantum deterministic key distribution when preparing multiple entangled state,this will greatly improve the overall efficiency of the key distribution. Security analysis results show that the proposed scheme could resist two common attacks, ensures the communication safe and reliable. Meanwhile,this protocol doesn’t involve any unitary operation,it’s simple and easy.