Improving security of quantum identity authentication based on ping-pong technique for photons
نویسندگان
چکیده
Recently Z. S. Zhang et al [Phys. Lett. A 356(2006)199] have proposed an one-way quantum identity authentication scheme and claimed that it can verify the user’s identity and update securely the initial authentication key for reuse. In this paper we will show that, under an eavesdropper’s intercept-measure-resend attack, Zhang et al’s scheme is only a one-time-use scheme for the updated key can be eavesdropped. To fix this leak, we revise their protocol such that the authentication key can be securely updated for reuse. PACS: 03.67.Dd, 03.65.Ud
منابع مشابه
Quantum identity authentication based on ping-pong technique for photons
To prevent active attack, an one-way quantum identity authentication scheme is proposed by employing mechanism of ping-pong protocol and property of quantum controlled-NOT gate. It can verify the user’s identity as well as distribute an updated key as the authentication key. Analytical results show the proposed scheme is secure under general individual attack. © 2006 Elsevier B.V. All rights re...
متن کاملEavesdropping on the “ping-pong” type quantum communication protocols with invisible photon
The crucial issue of quantum communication protocol is its security. A quantum communication scheme must be based on the existing or nearly existing technology, but its security must be guaranteed against an eavesdropper whose technology is limited only by the laws of quantum mechanics. In this paper, we show that all the deterministic and direct two-way quantum communication protocols, sometim...
متن کاملImproving the capacity of the ping-pong protocol
Since Bennett and Brassard presented the pioneer quantum key distribution (QKD) protocol in 1984 [1], there are a lot of theoretical QKD schemes [1-12] today. Recently, Beige et al. proposed a quantum secure direct communication scheme [13], which allows messages communicated directly without first establishing a random key to encrypt them. Bostroem and Felbingeer presented a ping-pong protocol...
متن کاملEavesdropping on the "ping-pong" quantum communication protocol.
Security of the "ping-pong" quantum communication protocol recently proposed by Boström and Felbinger [Phys. Rev. Lett. 89, 187902 (2002)]] is analyzed in the case of considerable quantum channel losses. The eavesdropping scheme is presented, which reveals that the ping-pong protocol is not secure for transmission efficiencies lower than 60%. Our scheme induces 50% losses, which, however, can b...
متن کاملSecurity of the quantum direct communication based on pairs of completely entangled qudits
Quantum secure direct communication protocols offer confidential transmission of classic information over the quantum channel without a prior key agreement. The ping-pong based protocols provide asymptotic security and detailed analysis of the security level provided by each variant of the protocol is required. The paper presents a general method of calculation of the eavesdropped information a...
متن کامل