Research On Anonymous Security Technology In Deterministic Network

With the increment of the network size,new application scenarios are emerging in today's network,and users request to improve the quality of network performance is more and more.In order to satisfy the user's demand for low packet loss rate,strict delay upper bound and strict delay jitter,the deterministic network emerge at a historic moment.However,deterministic network users have not only strict requirements for network performance,but also urgent needs for privacy protection.Therefore,it is of great significance to provide a secure and efficient anonymous authentication scheme for deterministic networks.The main work of this thesis can be divided into the following three points:1.According to the characteristics of common application scenarios in deterministic networks,two anonymous authentication protocols suitable for the deterministic networks are set forth.The first protocol is a single-sign-on scheme.In scenario of deterministic network,a single-sign-on scheme can effectively reduce the storage pressure of user devices.The second protocol is a group signature based scheme,which is mainly used in scenario of deterministic network to ensure strong anonymity of both sides.2.Existing single-sign-on mechanism are either inefficient in operation or defective in security.The DetNet-SSO protocol proposed in this thesis is an improvement of an efficient single-sign-on mechanism.It adds some authentication factors such as fingerprint and password to the original scheme,and then solves the defect that the original scheme can not resist the smart card loss attack.In addition,the DetNet-SSO protocol eliminates some unnecessary steps in the original scheme and improves the efficiency of the protocol while guaranteeing security.Experiments show that the operation efficiency of DetNet-SSO is 14% higher than that of the original scheme.3.In order to make up for the defect that DetNet-SSO protocol cannot guarantee the strong anonymity of both sides,The DetNet-VAA protocol based on group signature is proposed for the scenario in which strong anonymity of both sides should be ensured.DetNet-VAA protocol is an improvement of the existing anonymous authentication scheme based on group signature.By eliminating some unnecessary steps in the original scheme and adding timestamps,DetNet-VAA protocol makes up for the defect that the original scheme can not resist camouflage attack.While making up for the security defects of the original scheme,the operation time of DetNet-VAA is reduced compared with the original scheme.Experiments show that the operation time of DetNet-VAA protocol is 50% less than that of the original scheme.