Design And Analysis Of Bidirectional Quantum Identity Authentication Protoco L

With the rapid development of quantum information and communication technologies,quantum authentication,as an important research area in quantum cryptography,plays a crucial role in people’s lives and is a hot topic of research among many scholars.In network communication,it is essential to ensure that the transmitted information is limited to authenticated users only.Therefore,identity authentication between communication parties is necessary.Authentication is the process of verifying the identity of each participant in communication and is a means of preventing unauthorized users from communicating.At the same time,identity authentication protocols can also prevent the leakage of pre-shared keys between legitimate users.The security of classical identity authentication usually relies on the complexity of mathematical algorithms.However,in the era of quantum computing,these are not entirely secure and cannot effectively prevent attackers from impersonating legitimate counterparts.Compared with classical identity authentication,quantum identity authentication based on the principles of unclonability,uncertainty,and quantum non-locality has unparalleled advantages,such as good security and high information transmission efficiency.Based on this,this paper has made the following main research achievements:Firstly,a two-party quantum authentication protocol proposed by this thesis that does not require the involvement of a third party and can verify the identity of users without revealing authentication key information.The protocol can be implemented under single-photon states without involving entanglement and can be combined with existing technology.The shared key is protected and hidden during communication.The security of the authentication scheme under general attacks is analyzed and verified.Further analysis shows that the protocol is secure and efficient.Nest,based on the properties of the Hadamard gate and GHZ state,this paper proposes a quantum authentication protocol with transferable information.The protocol has higher security and integrity.In both quantum and classical channels,the key and transmitted information do not appear directly.In addition,the protocol creatively achieves key update during the authentication process.Successful authentication will automatically generate the key required for the next round of information transmission.In terms of security,the protocol has high integrity and data analysis shows that the protocol can resist impersonation attacks,replay attacks,and channel attacks.