Security of ping-pong protocol based on pairs of completely entangled qudits
نویسندگان
چکیده
منابع مشابه
Security 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...
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Computational based cryptography might not guarantee long term security if computational algorithms, computers, and so on are made remarkable progress. Therefore, quantum cryptography with unconditionally security attracts attention. In this paper, we consider security of a two-way quantum key distribution protocol, so called Ping-Pong protocol. As a result, we introduce not only robustness but...
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We briefly review the security of the ping-pong protocol in light of several attack scenarios suggested by various authors since the proposal of the protocol. We refute one recent attack on an ideal quantum channel, and show that a recent claim of falseness of our original security proof is erroneous.
متن کاملOn the Security of Ping-Pong Protocols
Consider the class of protocols, for two participants, in which the initiator applies a sequence of operators to a message M and sends it to the other participant ; in each step, one of the participants applies a sequence of operators to the message received last, and sends it back . This "ping-pong" action continues several times, using sequences of operators as specified by the protocol . The...
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Qing-yu Cai Wuhan Institute of Physics and Mathematics, The Chinese Academy of Sciences, Wuhan, 430071, People’s Republic of China Bostr .. om and Felbinger [1] have presented a ping-pong communication protocol which allows the information transferred in a deterministic secure manner. The security of this ping-pong protocol is based on an entangled pair of qubits. And the proof of the case of e...
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ژورنال
عنوان ژورنال: Quantum Information Processing
سال: 2011
ISSN: 1570-0755,1573-1332
DOI: 10.1007/s11128-011-0307-1