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ACOS'06 Proceedings of the 5th WSEAS international conference on Applied computer science

Quantum authentication protocol using entangled states

Xiaoyu Li, Dexi Zhang

Published Apr 16, 2006• 3 citations
OpenAlex

Abstract

Abstract: In this paper we provide a quantum authentication protocol. The two parties share a sequence of EPR(Einstein-Podolsky-Rosen) pairs as the authentication key. To authenticate each other, one party creates aux-iliary qubits and make them interact with the authentication key. After measurement in selected basis, he or she affirm the other’s identity. We shown that no one without the authentication key can pass the authentication process. So the protocol is secure. The authentication key is reusable if there are no eavesdroppers and errors in transmis-sion.

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Abstract: In this paper we provide a quantum authentication protocol. The two parties share a sequence of EPR(Einstein-Podolsky-Rosen) pairs as the authentication key. To authenticate each other, one party creates aux-iliary qubits and make them interact with the authentication key. After measurement in selected basis, he or she affirm the other’s identity. We shown that no one without the authentication key can pass the authentication process. So the protocol is secure. The authentication key is reusable if there are no eavesdroppers and errors in transmis-sion.
A quantum authentication protocol is presented in this paper. It is based on the correlations of the EPR(Einstain- Podolski-Rosen) pair which is a two-qubit system in one of the four Bell states. The two parties share a sequence of EPR pairs as the authentication key. To authenticate each other, they need to create auxiliary particles and make them interact with the authentication key. Then one can affirm the other's identity by performing the Bell states measure- ment. No one without the authentication key can pass the authentication process. So the protocol is secure. No clas- sical channel and classical information exchange is needed in the authentication process. After the authentication pro- cess, the authentication key can be turned into the origin state. So the authentication key can be reused.
This paper provides a quantum information authentication protocol using entangled states. The two parties share EPR (Einstein-Podolsky-Rosen) pairs as authentication key. Information is coded in two-qubits systems. The two parties confirm the validity of the information by making the coding systems to interact with the authentication key. We prove that information from anyone who has no authentication key can't pass the authentication. So our protocol is secure. If there are no errors and eavesdroppers existing in transmission, the authentication key can be reused
In this paper we provide a quantum authentication protocol. It is based on the nonlocality of the orthogonal product states of a two-particle system. The two parties share a sequence of two-particle systems as the authentication key. To authenticate each other, they only need to create auxiliary particles and exchange them. No one without the authentication key can pass the authentication process. So the protocol is secure. The authentication key is reusable because it doesn't change after the authentication process. The protocol is more practicable because it needn't entangled states and complex operations but product states and measurement which are easier to carry out in practice.
Authentication is one of the security services that ensures sufficient security of the system by identification and verification. Also, it assures the identity of the communicating party to be that the claimed one. To build a quantum channel between two unauthenticated to each other parties, first, a trusted authority is needed to establish a mutual authentication with each party. Using Bell measurement and entanglement swapping, we present a protocol that mutually authenticates the identity of the sender and the receiver, then constructs a quantum channel based on Bell basis. After, the sender and the receiver use the quantum channel to communicate using entanglement-assisted quantum communication protocols. Additionally, the protocol renews the shared secret key between the trusted authority and each user after each authentication process. The protocol provides the necessary authentication and key distribution to create a quantum channel between the sender and receiver.
Abstract Identification and key negotiation between trusted users play a pivot role in generating a session key. The existing protocol uses quantum resources with memory for authentication process but the storage time for qubit is limited. A new mutual authentication quantum key agreement protocol was proposed using Bell pair and the pre-shared key act as the basis for applying bell state measurement without storing the qubit. Security of the proposed protocol depends on inappropriate applying the Bell measurement in different basis leading to entanglement swapping. The participant is able to create a fair session key for each communication and mutually authenticate each identity. The key negotiation and authentication phases of the proposed mutual authentication quantum key agreement protocol have demonstrated that it is unconditional secure.