Quantum Access Control

Marc Fischlin, Jonas von der Heyden, Marian Margraf +3 more

Jessica Illiano, Marcello Caleffi, Michele Viscardi +1 more

Multipartite entanglement plays a crucial role for the design of the Quantum Internet, due to its peculiarities with no classical counterpart. Yet, for entanglement-based quantum networks, a key open issue is constituted by the lack of an effectiveentanglement access control(EAC) strategy for properly handling and coordinating the quantum nodes in accessing the entangled resource. In this paper, we design aquantum-genuineentanglement access control (EAC) to solve the contention problem arising in accessing a multipartite entangled resource. The proposed quantum-genuine EAC is able to: i) fairly select a subset of nodes granted with the access to the contended resource; ii) preserve the privacy and anonymity of the identities of the selected nodes; iii) avoid to delegate the signaling arising with entanglement access control to the classical network. We also conduct a theoretical analysis of noise effects on the proposed EAC. This theoretical analysis is able to catch the complex noise effects on the EAC through meaningful parameters.

Paulo Benicio, Melo de Sousa, Rubens Viana Ramos

One of the basics tasks in computer systems is the control of access of resources. Basically, there is a finite amount of resources that can be, for example, the CPU, memory or I/O ports, and several processes requiring those resources. If there is not enough resource in order to attend the demand, some kind of control access has to be employed. In this work, recognizing the resource sharing problem as a competition, we employ a simplified multiplayer quantum game as an access controller. The proposed quantum game can be employed in the architecture of quantum computers.

Lirong Qiu, Xin Sun, Juan Xu

Access control is a mechanism that is used to decide which agent has access to which resource with some specific operations. This paper is devoted to the investigation of quantum cryptography in access control. We develop three quantum protocols and use them for key distribution, identity authentication and digital certification, respectively. We analyze our protocols by the graphical language of categorical quantum mechanics. These protocols are unconditionally secure and implementable by the current technology.