Quantum authentication protocol using entangled states
نویسندگان
چکیده
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 auxiliary 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 transmission. Key–Words: Quantum cryptography, quantum authentication, EPR pair, CNOT operation, security, reusable.
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