An Efficient Quantum Key Management Scheme

Tapster, Gorman, Benton +3 more

Xi Luan

With the deepening of the quantum cryptography field research,video conference,networks games,stock trading and other dynamic group communication models put forward application requirements to quantum group key.In order to service these applications well,on the basis of analyzing the traditional group key manage-ment scheme,present a two layers of packet distributed quantum group key management model,design the quan-tum group key service agreement under this model,focus on the initialization phase of the agreement.Compared with several kinds of classic group key management scheme,this scheme's efficiency is higher in group key gen-eration and sharing,has certain practical significance.

Norbert Lütkenhaus

Fouzia Samiullah, Ming-Lee Gan, Sedat Akleylek +1 more

In our interconnected society, effective group communication is crucial for facilitating the efficient and secure interchange of data between multiple endpoints, particularly within the complex landscapes of the IoTs and sensor networks. Group Key Management (GKM) arises as a fundamental element for ensuring safety amidst these complexities. However, the emergence of quantum computers has sparked worries about the vulnerability of current GKM schemes that depend on asymmetric cryptography, also known as public-key cryptography. This study investigates post-quantum GKM schemes, concentrating on their integration in the IoT context and addressing the underexplored field of GKM in the context of quantum computing advancements. By examining the security features of GKM protocols, particularly in relation to their resistance to quantum attacks, this study not only identifies current challenges but also outlines a path for future research directions, posing light on potential pathways in this changing landscape.

E. Abirami, T. Padmavathy

Key Management techniques are exercised to distribute and update keys such that illegitimate parties cannot ingress group communications. Key management, however can exhibit information about the stream of group association, such as group size and the number of joining and leaving users. This is a threat to applications with confidential group membership information. This project proposes a new key management paradigm which a combination of traditional broadcast encryption and group key agreement which never reveals the group dynamic information to outsiders and achieves both forward secrecy and backward secrecy. It provides a secure key management model not only with public and private key but also two more keys called group key and session key. It is distributed to multiple user overtime. It also overcomes the limitation of quantum point to point key sharing. It offers reliability and convenience of use, as well as to introduce a secure and efficient key management technique for any quantum cryptography network in real time.

Yunyan Yang, Lai-zhen Luo, Guisheng Yin