Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Optical Communication Technology

A Secure Quantum Direct Communication Scheme

Ning Li

Published Jan 1, 2005• 0 citations
OpenAlex

Abstract

Quantum communication is a new crossing course combing with classic communication and quantum mechanics together. Current researches are most concentrated in quantum cryptographic, using in quantum secret communication, which are usually nondeterministic. There introduces a secure quantum direct communication scheme-the ping-pong protocol, which can exploit the nature of operation on blocks of EPR for deterministic secure direct communication.

Related papers

SECURITY ENHANCED DIRECT QUANTUM COMMUNICATION WITH HIGHER BIT-RATE

Soudeh Jahanshahi, Alireza Bahrampour, Mohammad Hossein Zandi

A scheme for deterministic secure direct communication based on ping-pong protocol without restricting the security control only to a distinct control mode and debate via classical channel is proposed. It utilizes an entangled pair of qubits and presents a higher bit-rate transfer of information together with a higher security than ping-pong protocol. The security of protocol is enhanced by introducing a control factor for each message mode. It is explicitly showed that the protocol has a high degree of security against a class of individual attacks, and successfully resolves the famous Wojcik attack.

International Journal of Quantum Information•Mar 1, 2013•8 citations

Quantum secret sharing protocol with communication channel checking

Igor V. Limar, Євген Вікторович Васіліу

The new quantum protocol of secret sharing between two subjects, which is based on the ping-pong protocol of quantum secure direct communication, is proposed. This protocol is based on scheme of transmission of the qubits by blocks, which is well known from publications. However, in contrast to this scheme in the proposed protocol the data transmission in a random way alternates with channel check on eavesdropping. Thereby the need for periodic storage of considerable number of qubits disappears. It will let to implement the procedure of secret sharing with assisting state-of-the-art technology of quantum information science. The proposed secret sharing protocol, which also uses the earlier developed by co-author the method of enhancement of the ping-pong protocols security, provides the high level of security to the outer malefactor’s eavesdropping attack. It is the advantage of this protocol over the appropriate classical (non-quantum) schemes.

Ukrainian Scientific Journal of Information Security•Jun 22, 2016•1 citation

A novel secure communication protocol

Qing-yu Cai

Based on the 'ping-pong' quantum communication protocol proposed by Bostr$\\overset{..}{o}$m and Felbinger [Phys. Rev. Lett. 89, 187902 (2002)], we show a deterministic secure direct communication protocol using single qubit in mixed state. This single qubit protocol is an asymptotically secure key distribution. It can be realized with today's technology. In principle, even if the single qubit source is not perfect, this protocol is also secure.

•Apr 22, 2003•0 citations

Experimental realisation of a deterministic secure quantum communication protocol based on entangled photons

Nino Walenta, Martin R. Ostermeyer

Quantum cryptography protocols using entangled qubit pairs can increase the rate and security of information exchange through a quantum channel. Usually those protocols are non-deterministic, i.e. a classical bit is encoded in a quantum state, but the actual bit value cannot be determined. Therefore they request the transmission of additional information through a public channel. By contrast, the ping-pong coding scheme based on entangled photons allows for deterministic and direct key distribution. No qubit has to be discarded and information can be decoded without the need for a subsequent transmission of additional information. Communication through a public channel nevertheless is necessary to ensure asymptotical security against arbitrary eavesdropping attacks.

Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)•Jun 1, 2007•0 citations

Quantum secure direct communication with high-dimension quantum superdense coding

Chuan Xi Wang, Fu‐Guo Deng, Yansong Li +2 more

A protocol for quantum secure direct communication with quantum superdense coding is proposed. It combines the ideas of block transmission, the ping-pong quantum secure direct communication protocol, and quantum superdense coding. It has the advantage of being secure and of high source capacity.

Physical Review A•Apr 28, 2005•934 citations

Insecurity of "Ping-Pong" Quantum Communication Protocol

Ying Guo

Ping-Pong quantum communication protocol may be employed to transmit deterministically information, so it has instrigued mang researchers. However, there are drawbacks on the security due to the symmetry of the employed two-way quantum channel. In this paper we propose a new attack strategy to eavesdrop the initially transmitted information based on the techniques of quantum error correction code (QECC). In addition, an attack strategy of Ping-Pong scheme based either entanglement state or nonorthogonal state is proofed and demonstrated, respectively. Furthermore, information obtained by Eve and the possible probability detected by the legitimate communicators are analyzed by employing information theorems. Detail proofs and analysis illustrate all previous Ping-Pong quantum communication schemes are insecure, i.e., the eavesdropper may obtain all available information without being detected.

Journal of Chinese Computer Systems•Jan 1, 2008•4 citations
Quantum communication is a new crossing course combing with classic communication and quantum mechanics together. Current researches are most concentrated in quantum cryptographic, using in quantum secret communication, which are usually nondeterministic. There introduces a secure quantum direct communication scheme-the ping-pong protocol, which can exploit the nature of operation on blocks of EPR for deterministic secure direct communication.
A scheme for deterministic secure direct communication based on ping-pong protocol without restricting the security control only to a distinct control mode and debate via classical channel is proposed. It utilizes an entangled pair of qubits and presents a higher bit-rate transfer of information together with a higher security than ping-pong protocol. The security of protocol is enhanced by introducing a control factor for each message mode. It is explicitly showed that the protocol has a high degree of security against a class of individual attacks, and successfully resolves the famous Wojcik attack.
The new quantum protocol of secret sharing between two subjects, which is based on the ping-pong protocol of quantum secure direct communication, is proposed. This protocol is based on scheme of transmission of the qubits by blocks, which is well known from publications. However, in contrast to this scheme in the proposed protocol the data transmission in a random way alternates with channel check on eavesdropping. Thereby the need for periodic storage of considerable number of qubits disappears. It will let to implement the procedure of secret sharing with assisting state-of-the-art technology of quantum information science. The proposed secret sharing protocol, which also uses the earlier developed by co-author the method of enhancement of the ping-pong protocols security, provides the high level of security to the outer malefactor’s eavesdropping attack. It is the advantage of this protocol over the appropriate classical (non-quantum) schemes.
Based on the 'ping-pong' quantum communication protocol proposed by Bostroverset..o\\overset{..}{o}overset..om and Felbinger [Phys. Rev. Lett. 89, 187902 (2002)], we show a deterministic secure direct communication protocol using single qubit in mixed state. This single qubit protocol is an asymptotically secure key distribution. It can be realized with today's technology. In principle, even if the single qubit source is not perfect, this protocol is also secure.
Quantum cryptography protocols using entangled qubit pairs can increase the rate and security of information exchange through a quantum channel. Usually those protocols are non-deterministic, i.e. a classical bit is encoded in a quantum state, but the actual bit value cannot be determined. Therefore they request the transmission of additional information through a public channel. By contrast, the ping-pong coding scheme based on entangled photons allows for deterministic and direct key distribution. No qubit has to be discarded and information can be decoded without the need for a subsequent transmission of additional information. Communication through a public channel nevertheless is necessary to ensure asymptotical security against arbitrary eavesdropping attacks.
Ping-Pong quantum communication protocol may be employed to transmit deterministically information, so it has instrigued mang researchers. However, there are drawbacks on the security due to the symmetry of the employed two-way quantum channel. In this paper we propose a new attack strategy to eavesdrop the initially transmitted information based on the techniques of quantum error correction code (QECC). In addition, an attack strategy of Ping-Pong scheme based either entanglement state or nonorthogonal state is proofed and demonstrated, respectively. Furthermore, information obtained by Eve and the possible probability detected by the legitimate communicators are analyzed by employing information theorems. Detail proofs and analysis illustrate all previous Ping-Pong quantum communication schemes are insecure, i.e., the eavesdropper may obtain all available information without being detected.