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International Conference on Natural Computation (ICNC)

Quantum Authentication Using Orthogonal Product States

Dexi Zhang, Xiaoyu Li

Published Jan 1, 2007• 9 citations
Publisher

Abstract

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.

DOI
10.1109/icnc.2007.589

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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.
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.
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.
Quantum key distribution is the most secure technology to distribute a secret key. There is a set of orthogonal product states in a two-qubit three-state quantum system which can show nonlocality. This paper provides a quantum key distribution protocol based otn the nonlocality of such system. The two parties establish the key by exchanging quantum qubits and performing the collective measurement on them. The laws of quantum mechanics guarantee that this protocol is unconditionally secure. No other people can get the key without being found. There are no entangled states and quantum operations needed in the protocol. So it is easier to carry out in practice. And it can gain high reliability and robustness.
This paper provides a quantum message authentication protocol using non-orthogonal states. A user Alice can attach some additional message (named verification) message) with the original message which he wants to send to another user Bob. When Bob receives them, he can affirm that the original message is really from Alice and without being distorted. The laws of quanum physics guarantee that the message authentication protocol is unconditionally secure. No entangled states and complex quantum operations are needed. So it's easier to carry out in practice.
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 order to make the quantum key agreement process immune to participant attacks, it is necessary to introduce the authentication in the communication process. A quantum key agreement protocol with identity authentication that exploits the measurement correlation of six-particle entangled states is proposed. In contrast to some recently proposed quantum key agreement protocols with authentication, this protocol requires neither a semi-trusted third party nor additional private keys in the authentication process. The entire process of authentication and key agreement can be achieved using only n six-particle entangled states, which saves communication costs and reduces the complexity of the authentication process. Finally, security analysis shows that this scheme is resistant to some important attacks.