论文标题
匿名量子会议密钥协议
Anonymous Quantum Conference Key Agreement
论文作者
论文摘要
会议密钥协议（CKA）是多方建立共同秘密密钥的一项加密努力。在未来的量子网络中，以匿名方式生成秘密密钥对于想要保留其共享密钥秘密并同时保护自己的身份的当事方至关重要。我们为一般协议提供了匿名的定义，并提供了一个CKA协议，该协议在现实的对抗场景下被证明是匿名的。我们将协议基于共享的Greenberger-Horne-Zeilinger国家，该州与双方纠缠的资源相比，已提议将其作为CKA协议的更有效资源。基于多部分纠缠状态的安全和匿名协议的存在提供了对其潜力作为资源的新见解，并为进一步的应用程序铺平了道路。
Conference Key Agreement (CKA) is a cryptographic effort of multiple parties to establish a shared secret key. In future quantum networks, generating secret keys in an anonymous way is of tremendous importance for parties that want to keep their shared key secret and at the same time protect their own identity. We provide a definition of anonymity for general protocols and present a CKA protocol that is provably anonymous under realistic adversarial scenarios. We base our protocol on shared Greenberger-Horne-Zeilinger states, which have been proposed as more efficient resources for CKA protocols, compared to bipartite entangled resources. The existence of secure and anonymous protocols based on multipartite entangled states provides a new insight on their potential as resources and paves the way for further applications.
