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

Attacks of BB84 protocol in quantum cryptography

Guihua Zeng, Xinmei Wang

Published Dec 10, 1998• 0 citations
OpenAlex

Abstract

An optimal eavesdropping strategy for BB84 protocol in quantum cryptography is proposed. This scheme is based on the `indirect copying'. Under this scheme, eavesdropper can exactly obtain the exchanged information between the legitimate users without being detected.

Related papers

A simple eavesdropping strategy of BB84 protocol

Guihua Zeng

A simplified eavesdropping-strategy for BB84 protocol in quantum cryptography (refer to quant-ph/9812022) is proposed. This scheme implements by the `indirect copying' technology. Under this scheme, eavesdropper can exactly obtain the exchanged information between the legitimate users without being detected.

arXiv:quant-ph/9812064•Dec 22, 1998•0 citations

A new attack strategy for BB84 protocol based on, Breidbart basis

Dan Liu, Changxing Pei, Dongxiao Quan +2 more

A new eavesdropping strategy for BB84 quantum key distribution protocol is proposed. This scheme is a new kind of intercept/resend strategy based on Breidbart basis. Under this scheme, eavesdropper can not only exactly obtain the exchanged information between legitimate users but also decrease the probability of being detected.

International Conference on Communications and Networking in China (ChinaCom)•Aug 1, 2009•5 citations

A Novel Basis Splitting Eavesdropping Scheme in Quantum Cryptography Based on the BB84 Protocol

Nan Zhao, Changhua Zhu, Dongxiao Quan

We propose a novel strategy named basis-splitting scheme to split the intercepted quanta into several portions based on different bases, for eavesdropping in the process of quantum cryptography. Compared with intercept-resend strategy, our simulation results of the basis-splitting scheme under the non-ideal condition show a greater performance, especially with the increase of the length of shifted bits. Consequently our scheme can aid eavesdropper to gather much more useful information.

Chinese Physics Letters•Aug 1, 2015•1 citation

Quantum Cryptography Protocol Based on Sending Entangled Qubit Pairs

Olli Ahonen

The quantum key distribution protocol BB84, published by C. H. Bennett and G. Brassard in 1984, describes how two spatially separated parties can generate a random bit string fully known only to them by transmission of single-qubit quantum states. Any attempt to eavesdrop on the protocol introduces disturbance which can be detected by the legitimate parties. In this Master's Thesis a novel modification to the BB84 protocol is analyzed. Instead of sending single particles one-by-one as in BB84, they are grouped and a non-local transformation is applied to each group before transmission. Each particle is sent to the intended receiver, always delaying the transmission until the receiver has acknowledged the previous particle on an authenticated classical channel, restricting eavesdropping to accessing the quantum transmission one particle at a time. Hence, an eavesdropper cannot undo the non-local transformation perfectly. Even if perfect cloning of quantum states was possible the state of the group could not be cloned. We calculate the maximal information on the established key provided by an intercept-resend attack and the induced disturbance for different transformations. We observe that it is possible to significantly reduce the eavesdropper's maximal information on the key--to one eighth of that in BB84 for a fixed, reasonable amount of disturbance. We also show that the individual access to the particles poses a fundamental restriction to the eavesdropper, and discuss a novel attack type against the proposed protocol.

arXiv:0712.4247•Dec 27, 2007•1 citation

Analysis of Quantum Cryptographic System Based on BB84 Protocol

Zhimeng Liu

Quantum cryptography is the combination between classic cryptography and the principle of quantum mechanics,and its security can be proved. Quantum cryptography system is different from public key system in exchanging secret key, which can automatically detect eavesdropping while public key system cannot accomplish this. In production and disposition of the BB84 protocol, users can authenticate identity each other by the original secret key, which can not only strengthen its security, but also improve efficiency.

Journal of Anyang University•Jan 1, 2005•0 citations

Eavesdropper Detection using BB84 Protocol in Quantum Cryptography

S. Jothi, A. Vijayarega

The recent application of the principles of quantum mechanics to cryptography has led to a remarkable new dimension in secret communication.Quantum Cryptography uses the principles of Quantum Mechanics to implement a cryptographic system.The key problem which is solved by using quantum techniques is that of eavesdropping detection.Conventional secret-key cryptography techniques require the communication of a secret key prior to message exchange.Quantum principles can be used to detect eavesdropping probabilistically when it occurs.The bits are represented as qubits, physically modeled by photons, and communicated over a quantum channel.The polarization states of photons represent 0's and 1's.As a result of these new developments, it is now possible to construct cryptographic communication systems which detect unauthorized eavesdropping should it occur, and which give a guarantee of no eavesdropping should it not occur.

Salesian Journal of Humanities and Social Sciences•May 1, 2013•0 citations
The quantum key distribution protocol BB84, published by C. H. Bennett and G. Brassard in 1984, describes how two spatially separated parties can generate a random bit string fully known only to them by transmission of single-qubit quantum states. Any attempt to eavesdrop on the protocol introduces disturbance which can be detected by the legitimate parties. In this Master's Thesis a novel modification to the BB84 protocol is analyzed. Instead of sending single particles one-by-one as in BB84, they are grouped and a non-local transformation is applied to each group before transmission. Each particle is sent to the intended receiver, always delaying the transmission until the receiver has acknowledged the previous particle on an authenticated classical channel, restricting eavesdropping to accessing the quantum transmission one particle at a time. Hence, an eavesdropper cannot undo the non-local transformation perfectly. Even if perfect cloning of quantum states was possible the state of the group could not be cloned. We calculate the maximal information on the established key provided by an intercept-resend attack and the induced disturbance for different transformations. We observe that it is possible to significantly reduce the eavesdropper's maximal information on the key--to one eighth of that in BB84 for a fixed, reasonable amount of disturbance. We also show that the individual access to the particles poses a fundamental restriction to the eavesdropper, and discuss a novel attack type against the proposed protocol.
Quantum cryptography is the combination between classic cryptography and the principle of quantum mechanics,and its security can be proved. Quantum cryptography system is different from public key system in exchanging secret key, which can automatically detect eavesdropping while public key system cannot accomplish this. In production and disposition of the BB84 protocol, users can authenticate identity each other by the original secret key, which can not only strengthen its security, but also improve efficiency.
The recent application of the principles of quantum mechanics to cryptography has led to a remarkable new dimension in secret communication.Quantum Cryptography uses the principles of Quantum Mechanics to implement a cryptographic system.The key problem which is solved by using quantum techniques is that of eavesdropping detection.Conventional secret-key cryptography techniques require the communication of a secret key prior to message exchange.Quantum principles can be used to detect eavesdropping probabilistically when it occurs.The bits are represented as qubits, physically modeled by photons, and communicated over a quantum channel.The polarization states of photons represent 0's and 1's.As a result of these new developments, it is now possible to construct cryptographic communication systems which detect unauthorized eavesdropping should it occur, and which give a guarantee of no eavesdropping should it not occur.