Research On Authorization Management Model In Quantum Communication Network

This thesis is supported by the National Natural Science Foundation of China(No.61572086,No.61402058).Quantum communication has great research value in the field of information security because of its theoretical unconditional security.Due to the rapid development of quantum communication in recent years,more and more attention has been paid to the application of quantum communication in real networks.It is far from enough to only guarantee the security of point-to-point communication.if we want to put quantum communication into the actual network,The problems of multi-party communication,access control,authorization management and trustworthiness assessment in quantum communication have yet need to be studied and perfected.Authorization management in quantum communication network environment involves many aspects such as teleportation,identity authentication,behavior trustworthiness analysis and so on.It also has great room for development under the premise of the rapid development of the current quantum communication network.Based on the above background,this thesis will study the authorization management in quantum communication network.First of all,this thesis proposes the idea of authorization management and authorization management model in quantum communication network based on the idea of role based access control in classical communication.The model is divided into three parts: user,role and authority,and information exchange is performed by using quantum channel among parts.Secondly,in order to solve the problem of security interaction between the roles and privileges of the model,this thesis propose a single particle teleportation to make the role and authority of the system secure key authentication on the basis of ensuring security and communication efficiency.There is a characteristic of the Bell state,if we split the Bell state into two single particles and operate on each single particle.The Bell state may change into another form.By using this characteristic of the Bell state,this thesis propose a quantum logic decision protocol to solve the problem of relating between role and authority.Then,using the above characteristics of Bell state again,this thesis finds a new rule to solve the problem of security level matching and identity authentication in the authorization management model.After that,the user's behavior trust is quantified and classified,and the trust level is transmitted by quantum dense coding,and the feasibility and security of the trust are illustrated by an example.At last,this thesis give a complete to illustrate the feasibility of the model.The study of this thesis provides a valuable new idea for the research of authorization management in the future quantum communication network.