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Quantum digital signatures (QDS) provide a means for signing electronic communications with informationtheoretic security. However, all previous demonstrations of quantum digital signatures assume trusted measurement devices. This renders…

In this paper, we propose a new theoretical scheme for quantum secure direct communication (QSDC) with user authentication. Different from the previous QSDC protocols, the present protocol uses only one orthogonal basis of single-qubit…

Quantum Physics · Physics 2022-02-23 Nayana Das , Goutam Paul , Ritajit Majumdar

The measurement-device-independent quantum key distribution (MDI-QKD) can be immune to all detector side-channel attacks. Moreover, it can be easily implemented combining with the matured decoy-state methods under current technology. It…

Quantum Physics · Physics 2021-08-11 Yi-Peng Chen , Jing-Yang Liu , Mingshuo Sun , Xing-Xu Zhou , Chun-Hui Zhang , Jian Li , Qin Wang

The measurement-device-independent quantum key distribution (MDI-QKD) protocol plays an important role in quantum communications due to its high level of security and practicability. It can be immune to all side-channel attacks directed on…

Quantum Physics · Physics 2020-08-26 Xing-Yu Zhou , Hua-Jian Ding , Chun-Hui Zhang , Jian Li , Chun-Mei Zhang , Qin Wang

Communication security has to evolve to a higher plane in the face of the threat from the massive computing power of the emerging quantum computers. Quantum secure direct communication (QSDC) constitutes a promising branch of quantum…

Quantum Physics · Physics 2025-01-03 Dong Pan , Gui-Lu Long , Liuguo Yin , Yu-Bo Sheng , Dong Ruan , Soon Xin Ng , Jianhua Lu , Lajos Hanzo

Quantum secure direct communication (QSDC) guarantees both the security and reliability of information transmission using quantum states. One-photon-interference QSDC (OPI-QSDC) is a technique that enhances the transmission distance and…

Quantum Physics · Physics 2024-04-04 Xiangjie Li , Yuanbin Cheng , Xingbo Pan , Yunrong Zhang , Guilu Long

Measurement-device-independent quantum key distribution (MDI-QKD) is a technique for quantum-secured communication that eliminates all detector side-channels, although is currently limited by implementation complexity and low secure key…

Quantum digital signatures (QDSs), which distribute and measure quantum states by key generation protocols and then sign messages via classical data processing, are a key area of interest in quantum cryptography. However, the practical…

Quantum Physics · Physics 2024-07-16 Jing-Wei Bian , Bing-Hong Li , Yuan-Mei Xie , Hua-Lei Yin , Zeng-Bing Chen

There is a big gap between theory and practice in quantum key distribution (QKD) because real devices do not satisfy the assumptions required by the security proofs. Here, we close this gap by introducing a simple and practical…

Quantum Physics · Physics 2021-03-31 Álvaro Navarrete , Margarida Pereira , Marcos Curty , Kiyoshi Tamaki

Measurement-device-independent quantum key distribution (MDI-QKD) can remove all detection side-channels from quantum communication systems. The security proofs require, however, that certain assumptions on the sources are satisfied. This…

Quantum Physics · Physics 2021-01-20 Weilong Wang , Kiyoshi Tamaki , Marcos Curty

Quantum secret sharing (QSS) plays a pivotal role in multiparty quantum communication, ensuring the secure distribution of private information among multiple parties. However, the security of QSS schemes can be compromised by attacks…

Quantum Physics · Physics 2025-04-03 Tianqi Liu , Jiancheng Lai , Zhenhua Li , Tao Li

Quantum secure direct communication (QSDC) is a approach of communication to transmit secret messages base on quantum mechanics. Different from the quantum key distribution, secret messages can be transmitted directly on quantum channel…

Quantum Physics · Physics 2024-06-18 Zhengwen Cao , Yujie Wang , Geng Chai , Xinlei Chen , Yuan Lu

Quantum communication provides an absolute security advantage, and it has been widely developed over the past 30 years. As an important branch of quantum communication, quantum secure direct communication (QSDC) promotes high security and…

Quantum Physics · Physics 2017-06-07 Wei Zhang , Dong-Sheng Ding , Yu-Bo Sheng , Lan Zhou , Bao-Sen Shi , Guang-Can Guo

Measurement-device-independent quantum key distribution (MDI-QKD) can provide enhanced security, as compared to traditional QKD, and it constitutes an important framework for a quantum network with an untrusted network server. Still, a key…

Quantum Physics · Physics 2015-09-04 Feihu Xu

We present Authenticated Multiuser Quantum Direct Communication(MQDC) protocols using entanglement swapping. Quantum direct communication is believed to be a safe way to send a secret message without quantum key distribution. The…

Quantum Physics · Physics 2007-05-23 Changho Hong , Jiin Kim , Hwayean Lee , Hyungjin Yang

We propose the schemes of quantum secure direct communication (QSDC) based on secret transmitting order of particles. In these protocols, the secret transmitting order of particles ensures the security of communication, and no secret…

Quantum Physics · Physics 2009-11-13 Ai-Dong Zhu , Yan Xia , Qiu-Bo Fan , Shou Zhang

Current quantum secure direct communication (QSDC) protocols guarantee communication security by estimating the error rates of photons in the X and Z bases. This take the reference frame calibration between communicating parties as a…

In the last decades, Quantum Cryptography has become one of the most important branches of Quantum Communications with a particular projection over the future Quantum Internet. It is precisely in Quantum Cryptography where two techniques…

General Physics · Physics 2021-02-16 Mario Mastriani

Quantum dialogue is a process of two way secure and simultaneous communication using a single channel. Recently, a Measurement Device Independent Quantum Dialogue (MDI-QD) protocol has been proposed (Quantum Information Processing 16.12…

Quantum Physics · Physics 2022-02-23 Nayana Das , Goutam Paul

Measurement-device-independent quantum secret sharing (MDI-QSS) can eliminate all the security loopholes associated with imperfect measurement devices and greatly enhance QS's security under practical experimental condition. MDI-QSS…

Quantum Physics · Physics 2024-05-28 Cheng Zhang , Qi Zhang , Wei Zhong , Ming-Ming Du , Shu-Ting Shen , Xi-Yun Li , An-Lei Zhang , Lan Zhou , Yu-Bo Sheng