Research On Quantum Identity Authentication And Key Agreement Protocol Based On Shared Secret

Quantum cryptography is a cryptography subject based on quantum mechanics.Some principles of quantum mechanics can guarantee the security of quantum cryptography effectively.The process of information encoding,storage,transmission and control is realized by using quantum control technology,which solves the problems of small capacity of information transmission,poor parallel processing ability and low efficiency of channel resisting attack in traditional technology.However,the development of quantum computer is relatively slow,it is a difficult task to build a quantum computer that can solve practical problems without calculation errors.Most of the pure quantum schemes proposed in the past cannot be applied in practice,but only remain at the theoretical level.Therefore,the current scheme that combines classical and quantum technologies is the most efficient one.In view of the above research,two kinds of quantum cryptography protocols based on secret sharing are proposed:1.Proposed a quantum identity authentication scheme with quantum-blockchain-based architecture.Aiming at the problems that traditional authentication protocols are easy to be stolen and attacked,and the traditional cross-domain identity authentication process is complex and low efficiency,this paper combines quantum cryptography protocol with blockchain technology and proposes an efficient and secure user login mode: users can log in on any domain server under the blockchain node.Based on the properties of quantum mechanics and blockchain,the scheme overcomes the security risks of traditional authentication technology.Moreover,the scheme adds a double-unload algorithm.After the user registration is completed,uninstall the user's original registration server;When the user's private client stores the user's authentication information locally,the blockchain service node that stores the user's information is uninstalled.The scheme can save the time of accessing the original server and improve the efficiency of authentication.2.Proposed a distributed authenticated quantum key agreement protocol with user-privacy using dynamic basis.A distributed quantum key protocol with user privacy protection is proposed for the most common cryptographic environment.Combining classical cryptography and quantum cryptography,the protocol will lead to a new direction of biometrics based and smart card-based quantum encryption using distributed architectures.Distributed architecture can solve the single point of security,single point of efficiency,single point of failure and other problems of centralized server or registry.By analyzing the possible attack process of the attacker,we find that the protocol is robust and achieves perfect forward secrecy.Finally,the two proposed protocols are summarized and the future development of quantum cryptography is considered.In the future,quantum technology will coexist and integrate with various technologies such as blockchain and cloud computing deeply.